7 part answer pls!!
The consumption of disel in truck A in one day is 102/208 ml and the consumption of truck B is 105/196 ml. Which truck consumed more disel and by how much?
Truck B consumed 0.045 mL more diesel than Truck A.
How to obtain the consumptions of each truck?The fuel consumption for each truck is obtained applying the proportions in the context of the problem.
A proportion is applied as we are converting a fraction to decimal, dividing the numerator by the denominator, as follows:
102/208 ml = 0.49 mL -> divide 102 by 208.105/196 ml = 0.535 mL -> divide 105 by 196. -> consumed more.Hence the difference is given as follows:
0.535 - 0.49 = 0.045 mL.
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which of the following statement is not true of unnormalized data?a. unnormalized data is raw data.b. unnormalized data is related data.c. unnormalized data might contain redundant data.d. unnormalized data is multivalued data.
The statement that is not true of unnormalized data is option (d) unnormalized data is multivalued data.
Unnormalized data refers to raw data that has not been organized or processed in any way. It may contain redundancies, inconsistencies, and other issues that make it difficult to work with. However, it does not necessarily involve multivalued data.
Multivalued data refers to data that has multiple values for a single attribute. For example, if a customer can have multiple phone numbers, that data would be considered multivalued. Unnormalized data may or may not have multivalued data, depending on the nature of the data itself.
Therefore, the correct option is (d) unnormalized data is multivalued data
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A group of friends wanted to rent a cabin for the fourth of July.
The total cost to rent the cabin was $960. However, 4 of the
friends decided not to go. The remaining friends decided to
divide the $960 cost equally, which therefore increased each
share by $120. How many friends were originally in the group?
Show all your work!
If a group of friends wanted to rent a cabin for the fourth of July. The number of friends that were originally in the group is 8.
How to find the number of friend?Let x represent the number of friends in the group
Cost per person =960/x
After the 4 friends dropped out the remaining number of friends was = x - 4
New cost per person =960/x + 120
New total cost of the cabin rental = (x - 4) * (960/x + 120)
Set the two expressions equal to each other
960 = (x - 4) * (960/x + 120)
960 = 960 - (3840/x) + 120(x - 4)
Simplifying
3840/x = 120x - 480
Multiplying both sides by x
3840 = 120x^2 - 480x
Rearranging
120x^2 - 480x - 3840 = 0
Dividing both sides by 120
x^2 - 4x - 32 = 0
Quadratic equation
x = (-b ± sqrt(b^2 - 4ac)) / 2a
where:
a = 1, b = -4, and c = -32.
Plugin the formula
x = (4 ± √(16 + 128)) / 2
x = (4 ± √(144)) / 2
x = (4 ± 12) / 2
x = 8 or x = -4
Therefore the number of friends is 8.
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The measure of an angle is 17.9°. What is the measure of its supplementary angle?
Answer:162.1
Step-by-step explanation:We know that the sum of supplementary angles is 180°Let the unknown angle be xThus,100° + x = 180°X = 180° – 100°X = 80°Hence, the unknown angle is 80 …I did it my own way ok…
The zoom feature on a camera lens allows you dilate what appears on the display. When you change from 100% to 400%, the new image on your screen is an enlargement of the previous image with a scale factor of 4. If the new image is 38 millimeters wide, what was the width of the previous image?
the width of the previous image is 9.5mm.
What is the width?The widthh can be defined as the horizontal measurement or distance measured from side to side.
In geometry, the shorter side of an object is frequently referred to as its "width". For instance, both of the given rectangles are identical rectangles, but one of them has been rotated to demonstrate that the shorter side of the rectangle is referred to as its width.
In the given problem,
if the width of the previous image is x,
4x=38
⇒x=9.5mm
So, the width of previous image is 9.5mm.
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the graph below displays the amount of time to the nearest hour spent on homework per week for a sample of students. which measures of center and variability would be most appropriate to describe the given distribution? group of answer choices mean and standard deviation mean and iqr median and standard deviation median and iqr median and range
The Median and IQR are most appropriate to describe the measures of center and variability of distribution. The histogram depicts the distribution of time is positively skewed. So, option(b) is right one.
We have a graph present in above figure, which showes the amount of time in hours spent on homework per week for a sample of students. We have to select correct measures of center and variability. The graph is a histogram. From the graph we can see that the data is positively skewed. Now for skewed distribution we prefer median over mean as mean is more sensitive to the outliers. As the data(time) is in ratio scale we can use any of the measures of dispersion; but for skewed distribution IQR is preferred because of its robustness. In a word both median and IQR can handle outliers. Thus the appropriate answer is Median and IQR, option (c).
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Complete question :
The above figure complete the question
the graph below displays the amount of time to the nearest hour spent on homework per week for a sample of students. which measures of center and variability would be most appropriate to describe the given distribution? group of answer choices
a) mean and standard deviation
b) mean and iqr
c) median and standard deviation
d) median and iqr
e) median and range
a group of 155 students at a private university were asked if they are full-time or part-time and if they have gym memberships. the results are shown in the table below. given that a randomly selected survey participant is part-time, what is the probability that this student has a gym membership?
the probability that a randomly selected part-time student has a gym membership is approximately 0.2667 or 26.67%.
How to solve the question?
To calculate the probability that a randomly selected part-time student has a gym membership, we need to use conditional probability. Specifically, we need to use Bayes' theorem:
P(Gym Membership | Part-Time) = P(Part-Time | Gym Membership) * P(Gym Membership) / P(Part-Time)
Where:
P(Gym Membership | Part-Time) is the probability that a student has a gym membership given that they are part-time.
P(Part-Time | Gym Membership) is the probability that a student is part-time given that they have a gym membership.
P(Gym Membership) is the overall probability of a student having a gym membership (regardless of whether they are full-time or part-time).
P(Part-Time) is the overall probability of a student being part-time (regardless of whether they have a gym membership).
Let's start by filling in the values we know from the table:
P(Part-Time) = (40 + 25) / 155 = 0.5484
P(Gym Membership) = (30 + 25) / 155 = 0.3226
P(Part-Time | Gym Membership) = 25 / (30 + 25) = 0.4545
To find P(Gym Membership | Part-Time), we need to calculate P(Part-Time and Gym Membership). We can use the formula:
P(Part-Time and Gym Membership) = P(Part-Time | Gym Membership) * P(Gym Membership)
Plugging in the values we know, we get:
P(Part-Time and Gym Membership) = 0.4545 * 0.3226 = 0.1463
Now we can use this value, along with P(Part-Time) and P(Gym Membership), to calculate P(Gym Membership | Part-Time):
P(Gym Membership | Part-Time) = 0.1463 / 0.5484 ≈ 0.2667
Therefore, the probability that a randomly selected part-time student has a gym membership is approximately 0.2667 or 26.67%.
It's worth noting that this result is based on the assumption that the sample of 155 students is representative of the larger population of the university. If there are any biases or other factors that make this sample unrepresentative, then our calculated probability may not be accurate. Additionally, the results could be affected by other factors, such as the cost of gym membership or the availability of on-campus fitness facilities.
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Laura and Rich have been approved for a $325,000, 15-year mortgage with an APR of 5.3%. Using the mortgage and interest formulas, complete the two-month amortization table.
First, let's calculate the monthly interest rate (i), which is the APR divided by 12 months:
i = APR / 12 months
i = 5.3% / 12
i = 0.00442 or 0.442%
Next, let's calculate the number of months (n) for the mortgage, which is 15 years multiplied by 12 months:
n = 15 years x 12 months/year
n = 180 months
Now, let's calculate the monthly payment (PMT) using the following formula:
PMT = P * i / [tex](1 - (1 + i)^(-n)[/tex])
where P is the principal amount, i is the monthly interest rate, and n is the number of months.
PMT = $325,000 * 0.00442 / (1 - [tex](1 + 0.00442)^(-180)[/tex]
PMT = $2,613.67 (rounded to the nearest cent)
Now, let's create the amortization table for the first two months:
Month | Payment | Interest | Principal | Remaining Balance
1 | $2,613.67 | $1,431.25 | $1,182.42 | $323,817.58
2 | $2,613.67 | $1,428.60 | $1,185.07 | $322,632.51
For each month, the Payment column shows the fixed monthly payment, the Interest column shows the calculated interest based on the remaining balance multiplied by the monthly interest rate, the Principal column shows the portion of the payment that goes towards reducing the principal, and the Remaining Balance column shows the remaining balance after subtracting the principal payment from the previous remaining balance.
The amortization table will continue in this manner for the remaining months until the mortgage is paid off.
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The interest and principal amounts for the first payment are:
Interest = $325,000 * 0.0044167 = $1,426.25
Principal = $2,549.67 - $1,426.25 = $1,123.42
Balance = $325,000 - $1,123.42 = $323,876.58
For the second payment, we start with the new balance of $323,876.58 and apply the formulas again:
Interest = $323,876.58 * 0.0044167 = $1,420.47
Principal = $2,549.67 - $1,420.47 = $1,129.20
Balance = $323,876.58 - $1,129.20 = $322,747.38
To complete the two-month amortization table, we need to calculate the monthly payment, as well as the principal and interest amounts for each payment.
The formula for calculating a fixed-rate mortgage payment is:
[tex]Payment = P * r * (1 + r)^n / [(1 + r)^n - 1][/tex]
Where:
P = Principal amount borrowed
r = Monthly interest rate
n = Total number of payments
First, let's calculate the monthly interest rate.
Since the APR is an annual rate, we need to divide it by 12 to get the monthly rate:
Monthly interest rate = 5.3% / 12 = 0.0044167
Next, we need to calculate the total number of payments.
Since this is a 15-year mortgage, and we're completing a two-month amortization table, the total number of payments is:
Total number of payments = 15 years * 12 months per year = 180
Number of payments for two months = 2
Now we can plug these values into the formula to calculate the monthly payment:
Payment = [tex]$325,000 * 0.0044167 * (1 + 0.0044167)^180 / [(1 + 0.0044167)^180 - 1][/tex]
= $2,549.67
So the monthly payment is $2,549.67
Now we can use this value to complete the two-month amortization table:
Payment Interest Principal Balance
Month 1 $1,426.25 $1,123.42 $323,876.58
Month 2 $1,420.47 $1,129.20 $322,747.38
To calculate the interest and principal amounts for each payment, we use the following formulas:
Interest = Balance * Monthly interest rate
Principal = Payment - Interest
Balance = Balance - Principal
We start with the initial balance of $325,000 and apply the formulas for each payment.
The interest and principal amounts for the first payment are:
Interest = $325,000 * 0.0044167 = $1,426.25
Principal = $2,549.67 - $1,426.25 = $1,123.42
Balance = $325,000 - $1,123.42 = $323,876.58
For the second payment, we start with the new balance of $323,876.58 and apply the formulas again:
Interest = $323,876.58 * 0.0044167 = $1,420.47
Principal = $2,549.67 - $1,420.47 = $1,129.20
Balance = $323,876.58 - $1,129.20 = $322,747.38
And so on, for each subsequent payment.
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use normal approximation to estimate the probability of passing a true/false test of 60 questions if the minimum passing grade is 60% and all responses are random guesses.
The probability of passing the true/false test of 60 questions if the minimum passing grade is 60% and all responses are random guesses is approximately 0.9802 or 98.02%.
Assuming that all responses are random guesses, we may describe this issue using a binomial distribution, where the number of right responses follows a binomial distribution with [tex]n = 60[/tex] and [tex]p = 0.5.[/tex]
If X represents the total number of accurate responses, it will follow a binomial distribution with[tex]n = 60[/tex] and [tex]p = 0.5[/tex] as its parameters.
If the passing grade is [tex]60%[/tex], then there must be a minimum of [tex]36[/tex]accurate responses [tex](0.6 * 60 = 36).[/tex]
The normal-approximation can be used to calculate the likelihood of receiving at least [tex]36[/tex] correct responses. We must determine the mean and variance of the binomial distribution in order to utilise the normal approximation.
The variance of a binomial distribution is
[tex]2 = np(1-p)[/tex]
[tex]= 60 * 0.5 * 0.5[/tex]
[tex]= 15[/tex]
and the mean is
[tex]= np[/tex]
[tex]= 60 * 0.5[/tex]
[tex]= 30.[/tex]
To calculate the probability of passing, we can use the normal distribution with mean 30 and variance 15 to approximate the binomial distribution with continuity correction.
[tex]P(X \geq 36) = P(Z \geq (36 + 0.5 - 30) / \sqrt{15})[/tex]
where Z is a standard normal random variable.
[tex]P(Z \geq 2.08) = 1 - P(Z \leq 2.08)[/tex]
[tex]= 1 - 0.0198[/tex]
[tex]= 0.9802[/tex]
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A college cafeteria is looking for a new dessert to offer its 4,000 students. The table shows the preference of 225 students.
Ice Cream Candy Cake Pie Cookies
81 9 72 36 27
Which statement is the best prediction about the number of cookies the college will need?
The college will have about 480 students who prefer cookies.
The college will have about 640 students who prefer cookies.
The college will have about 1,280 students who prefer cookies.
The college will have about 1,440 students who prefer cookies.
Question 14
A random sample of 100 middle schoolers were asked about their favorite sport. The following data was collected from the students.
Sport Basketball Baseball Soccer Tennis
Number of Students 17 12 27 44
Which of the following graphs correctly displays the data?
histogram with the title favorite sport and the x axis labeled sport and the y axis labeled number of students, with the first bar labeled basketball going to a value of 17, the second bar labeled baseball going to a value of 12, the third bar labeled soccer going to a value of 27, and the fourth bar labeled tennis going to a value of 44
histogram with the title favorite sport and the x axis labeled sport and the y axis labeled number of students, with the first bar labeled baseball going to a value of 17, the second bar labeled basketball going to a value of 12, the third bar labeled tennis going to a value of 27, and the fourth bar labeled soccer going to a value of 44
bar graph with the title favorite sport and the x axis labeled sport and the y axis labeled number of students, with the first bar labeled basketball going to a value of 17, the second bar labeled baseball going to a value of 12, the third bar labeled soccer going to a value of 27, and the fourth bar labeled tennis going to a value of 44
bar graph with the title favorite sport and the x axis labeled sport and the y axis labeled number of students, with the first bar labeled baseball going to a value of 17, the second bar labeled basketball going to a value of 12, the third bar labeled tennis going to a value of 27, and the fourth bar labeled soccer going to a value of 44
Question 15
The line plots represent data collected on the travel times to school from two groups of 15 students.
A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 4, 6, 14, and 28. There are two dots above 10, 12, 18, and 22. There are three dots above 16. The graph is titled Bus 47 Travel Times.
A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 8, 9, 18, 20, and 22. There are two dots above 6, 10, 12, 14, and 16. The graph is titled Bus 18 Travel Times.
Compare the data and use the correct measure of center to determine which bus typically has the faster travel time. Round your answer to the nearest whole number, if necessary, and explain your answer.
Bus 18, with a median of 13
Bus 47, with a median of 16
Bus 18, with a mean of 13
Bus 47, with a mean of 16
13) The best prediction is that the college will need about 480 cookies.
14) The correct answer is Bus 47, with a median of 16.
Solution to the aforementioned questionFor Question 13:
The total number of students surveyed is 225. Out of these, 27 students prefer cookies. So, we can estimate that approximately (27/225) * 4000 = 480 students will prefer cookies.
Therefore, the best prediction is that the college will need about 480 cookies.
For Question 14:
The correct graph for displaying the data is a bar graph with the title "Favorite Sport" and the x-axis labeled "Sport" and the y-axis labeled "Number of Students". The first bar should be labeled "Basketball" and go to a value of 17, the second bar should be labeled "Baseball" and go to a value of 12, the third bar should be labeled "Soccer" and go to a value of 27, and the fourth bar should be labeled "Tennis" and go to a value of 44.
For Question 15:
We can see that the median for Bus 18 is (10+12)/2 = 11 and the median for Bus 47 is (16+16)/2 = 16. Therefore, Bus 47 typically has the faster travel time.
The correct answer is Bus 47, with a median of 16.
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an engineer has designed a valve that will regulate water pressure on an automobile engine. the valve was tested on 130 engines and the mean pressure was 5.9 lbs/square inch. assume the standard deviation is known to be 1 . if the valve was designed to produce a mean pressure of 5.8 lbs/square inch, is there sufficient evidence at the 0.05 level that the valve performs above the specifications? state the null and alternative hypotheses for the above scenario.
Here the p-value is less than the significance level of 0.05, we can reject the null hypothesis and conclude that there is sufficient evidence at the 0.05 level that the valve performs above specifications.
We have to evaluate null and alternative hypotheses for the scenario .
In this scenario, the null hypothesis is
H0: μ = 5.8
here
μ = true mean pressure produced by the valve.
Now for the alternative hypothesis is
HA: μ > 5.8
here
μ = true mean pressure produced by the valve.
Therefore to determine if there is sufficient observation at the 0.05 level that the valve performs above specifications,
Here we can utilize a one-tailed z-test with
α = 0.05
Then, test statistic can be evaluated as
z = (X' - μ) / (σ / √n)
where:
X' = sample mean
μ = hypothesized value concerning the population mean
σ = population standard deviation
n = sample size
Substituting in our values, we get:
z = (5.9 - 5.8) / (1 / √130) = 1.8856
Now utilizing a z-table we can evaluate that the p-value associated with this test statistic is approximately 0.0292.
Since this p-value is less than the significance level of 0.05, we can reject the null hypothesis and conclude that there is sufficient evidence at the 0.05 level that the valve performs above specifications.
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A couple gets financing for 80% of the $150,000 purchase price of a house at the rate of 6% on the monthly unpaid balance. Use the table provided to find the total amount paid to the finance company if the loan is repaid in 40 years. A 5-column table with 4 rows titled Monthly Payments per 1000 dollars of mortgage. Column 1 is labeled Interest Rate (percent) with entries 5, 5.5, 6, 6.5. Column 2 is labeled 10 Years with entries 10.61, 10.86, 11.11, 11.36. Column 3 is labeled 20 years with entries 6.60, 6.88, 7.17, 7.46. Column 4 is labeled 30 years with entries 5.37, 5.68, 6.00, 6.33. Column 5 is labeled 40 years with entries 4.83, 5.16, 5.51, 5.86. a. $231,948.00 c. $317,376.00 b. $289,005.00 d. $141,509.00
The total amount paid to the finance company if the loan is repaid in 40 years is $317,376.00 (option c).
First, we need to find out how much money the couple borrowed. Since they got financing for 80% of the $150,000 purchase price, they borrowed $120,000 ($150,000 x 0.8 = $120,000).
Next, we need to find the monthly interest rate. Since the interest rate is 6% per year, the monthly interest rate is 0.06/12 = 0.005.
Now we can use the table to find the monthly payment per $1000 of mortgage for a 40-year loan with a 6% interest rate. Looking at the fifth column of the table, we find the entry that corresponds to a 6% interest rate and a 40-year loan, which is 5.86. This means that for each $1000 borrowed, the monthly payment is $5.86.
To find the monthly payment for the couple's $120,000 loan, we multiply the monthly payment per $1000 by 120 (since they borrowed $120,000). So the monthly payment is 5.86 x 120 = $703.20.
Finally, we need to calculate the total amount paid to the finance company over the 40-year period. Since the couple will make 12 payments per year for 40 years, the total number of payments will be 12 x 40 = 480. So the total amount paid will be the monthly payment ($703.20) multiplied by the total number of payments (480). This gives us a total of $317,376.
Therefore, the correct option is (c).
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Use synthetic division and the remainder theorem to find the remainder when is divided by x-c
The remainder of the f(x) = 3x³ + 6x² - 3x + 2 and divisor x + 3 applying synthetic division is equal to -16.
Use synthetic division and the remainder theorem to find the remainder of f(x) when divided by x- c,
Set up the synthetic division table with c on the left side, and the coefficients of f(x) on the top row.
Bring down the first coefficient of f(x) into the first box below the horizontal line.
Multiply c by the number in the first box and write the result in the second box.
Add the number in the second box to the coefficient in the second column, and write the result in the third box.
Repeat steps 3 and 4 until you reach the last box. The number in the last box is the remainder.
Check if the remainder is zero. If it is zero, then x -c is a factor of f(x),
and g(x) = (x- c) is a factor of f(x).
Dividend is equal to,
f(x) = 3x³ + 6x² - 3x + 2
Divisor is equal to,
g(x) = x + 3
Synthetic division is attached in the figure.
Expressed in remainder theorem
3x² -3x + 6 + ( -16 / x + 3 )
Therefore, the remainder of the synthetic division for the given dividend and divisor is equal to -16.
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1/ 3 is the difference in the gierls that have blue eyes and brown eyes
How to solve for the differenceLet's first find the difference in fractions between the number of girls with brown eyes and the number of girls with blue eyes.
Brown eyes: 7/12
Blue eyes: 1/4
To subtract these fractions, we need to find a common denominator, which in this case is 12. So, we'll convert the fractions to have the same denominator:
7/12 - (3/3)*(1/4) = 7/12 - 3/12
Now, subtract the fractions:
(7 - 3)/12 = 4/12
Simplify the fraction:
4/12 = (1/3)*(4/4) = 1/3
So, 1/3 more girls have brown eyes than blue eyes.
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if the median of 127 numbers is 35, which of the following must be true? i) at least 64 of the numbers are greater than or equal to 35 ii) at least 64 of the numbers are smaller than 35 iii) at most 64 numbers are greater than or equal to 35
Answer:
Option i) At least 64 of the numbers are greater than or equal to 35 must be true
Since the median is 35, we know that there are 63 numbers greater than 35 and 63 numbers smaller than 35. However, since there is an odd number of total numbers (127), the median itself must be included in one of these groups. Therefore, there are at least 64 numbers that are greater than or equal to 35.
A random sample of 130 purchases from a particular pharmacy was taken. The type of item purchased was recorded, and a table of the data was created.
Item Purchased Health & Medicine Beauty Household Grocery
Number of Purchases 55 23 22 30
Which graphical representation would be best to display the data?
Box plot
Histogram
Stem-and-leaf plot
Bar graph
Answer:
Bar Graph
Step-by-step explanation:
A bar graph would be the best graphical representation to display the data.
A bar graph is a good choice for displaying categorical data, where each category is represented by a separate bar. In this case, the categories are the different types of items purchased (Health & Medicine, Beauty, Household, and Grocery), and the number of purchases for each category is represented by the height of the corresponding bar.
A box plot is generally used to display numerical data, while a histogram is used to display the distribution of continuous data. A stem-and-leaf plot can also be used to display numerical data, but it is generally used for smaller datasets.
Therefore, in this case, a bar graph is the most appropriate choice to display the data.
The best graphical representation for the given dataset would be a Bar Graph. The categories of items purchased can be shown on one axis and the number of purchases on the other. Other plots such as Box plots, Histograms, and Stem-and-leaf plots are not suitable for this kind of categorical data.
Explanation:To represent this data graphically, the best option would be a Bar Graph. A bar graph is a graph that uses either horizontal or vertical bars to show comparisons between categories of data. In this case, you have four categories (Item Purchased: Health & Medicine, Beauty, Household, Grocery) and the Number of Purchases associated with each category.
So, each category would be represented by a bar, and the length or height of the bar would represent the Number of Purchases.
Box plots, Histograms, and Stem-and-leaf plots are not appropriate because they are typically used for continuous data or to examine ranges of data, and the data listed here is categorical and discrete (it's countable).
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PLS HELP DUE TODAY!!!!
The values of the positive intergers a and b is 2 and 3 respectively and the value of 2a+3b is 13.
What is algebraic expression?An algebraic expression are the expression which consist the variables, coefficients of variables and constants. In the given problem, a and b are positive integers. The given expression in the problem is: ^2b^3=108.
Let us the hit and trial method to make both the equation equal. For a=1 and b= 1 the expression will be equal to 1. For a =2 and b=3,
(2)^2(3)^3 = 108
(4)(27) = 108
108 = 108
Here, left hand side of the expression is equal to the right hand side of the expression for a =2 and b=3. Thus the value of a and b are,
a = 2
b = 3
The value of the expression we have to find is, 2a+3b. Put the values of a and b in the above expression, we get,
2a+3b = 2^(2)+3^(3)
2a+3b = 4+9
2a+3b = 13
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Yesterday, the track coach at Milton Middle School had the runners jog 3 times around the track for every 1 time they sprinted around it.
If the runners jogged 6 more laps than they sprinted, how many laps did they run altogether?
Therefore , the solution of the given problem of unitary method comes out to be the athletes completed a total of 12 laps.
What is an unitary method ?Finish the project using the tried-and-true basic methodology, the actual variables, and any pertinent knowledge you gain from the broad and specific questions. In response, customers might be given another opportunity to sample expression the products. We'll miss out on important breakthroughs in programming comprehension if these changes don't take place.
Here,
In accordance with the information provided, for each sprint around the track, the runners jogged three times. So, three times as many laps are jogged around the track.
Furthermore, it is known that the runners jogged six more laps than they ran. Therefore, we can construct the following equation:
Jogging laps equals sprinting laps plus six.
=> 3x = x + 6
=> 3x - x = 6
=> 2x = 6
=> x = 6/2
=> x = 3
Total laps equal 3x + x = 4x times the amount of jogged and sprinting laps.
By changing the value of x, we obtain:
Laps completed = 4 (3) = 12
As a result, the athletes completed a total of 12 laps.
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Two parallel lines, a and b, are cut by a transversal w. The measures of two angles formed are given in the diagram. What is the measurement of the angle labeled (3x)°?
The measurement of the angle labeled (3x)° include the following: 120°.
What is corresponding angles postulate?In Mathematics and Geometry, corresponding angles postulate simply refers to a theorem which states that corresponding angles are always congruent (equal) if the transversal intersects two parallel lines.
This ultimately implies that, the corresponding angles would always be congruent (equal) if a transversal intersects two (2) parallel lines.
60 + y = 180
y = 180 - 60
y = 120°
By applying corresponding angles postulate to both lines a, b, and w, we can reasonably infer and logically deduce that the following angles are congruent:
3x = 120°
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Find the surface area of the rectangular prism.
The surface area of the rectangular prism which is given above would be = 130ft²
How to calculate the surface area of the rectangular prism?To calculate the surface area of the rectangular prism the formula that should be used;
=2( wl+hl+wh)
where;
w = 5ft
l = 10ft
h = 1 ft
surface area = 2(5×10+1×10+5×1)
= 2(50+10+5)
= 2×65 = 130ft²
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Write a division expresion that has the same value as 51. 2 divided by 6. 4 but is easier to use to find the value. Then, find the value using long division
The value of 51. 2 divided by 6. 4 using long division is 8.0
To find the value of 512 divided by 64, we can use long division. We start by dividing 5 (the first digit of 512) by 6 (the first digit of 64). Since 5 is less than 6, we bring down the next digit (1) to form the new dividend, 51. We then add a decimal point to the quotient and bring down the next digit (2) to form 512.
We repeat the process of dividing 51 by 6, which gives us 8 with a remainder of 3. We write the quotient (8) above the next digit of the dividend (2) and bring down the next digit (0) to form the new dividend, 30. We continue this process until we have brought down all the digits of the dividend.
At the end of the process, we get a quotient of 8.0, which is the value of our original expression, 51.2 divided by 6.4.
Therefore, 512 divided by 64 is equal to 8.0.
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he coordinates of three corners of a square are (–2, 0), (1, 0), and (1, –3). Use this information to complete the following tasks.
Graph the three points given.
Determine the coordinates of the fourth corner of the square.
Draw the square.
Determine the perimeter of the square.
The coordinates of point D on the graph are (2,-2). the square has a surface area of 25 square units. The perimeter of the square p is 20 units.
How to plot the coordinate on the graph?A (2,3), B (-3, 3), and C (-3, -2) are the given points.
In the graph below, the points are plotted.
The coordinates of point D on the graph are (2,-2).
In this case, AB = 5 units [from the graph].
The square's area = side * side
ABCD's square area = AB *AB
= 5×5
= 25 square units.
As a result, the square has a surface area of 25 square units.
The perimeter of the square p = 4 * side
p = 4 *5 = 20 units.
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Similar question:
The three vertices of a square are A (2,3), B(-3, 3), and C (-3, -2). Plot these points on graph paper and
hence use it to find the coordinates of the fourth vertex. Also, find the area and perimeter of the square.
Please help. 30 points
The length of AC is 22.87 (nearest tenth)
What is a rectangle and its diagonal?A line segment that connects two non-adjacent vertices of a rectangle is known as the diagonal. At the end of the day, a line section goes from one corner of the square shape to the contrary corner.
From the diagram of rectangle ABCD is;
AB and DC are two parallel lines and AC is intersect line So,
∠BAC = ∠DCA = 29°
∠DCA = 29°
Apply trigonometry identity for ΔADC;
Cos 29° = DC/AC
Cos 29° = 20/AC
AC = 20/Cos 29°
AC = 20/0.875
AC = 22.87
Therefore, the length of AC is 22.87
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x2 − 12x + 49 = 22.
Which equation has the same solution(s) as the given equation?
M. (x − 6)2 = 9
P. (x − 7)2 = 22
R. (x + 7)2 = 4.7
S. (x − 12)2 = −27
By quadratic formula the equation that has the same solution(s) as X² − 12x + 49 = 22 is M. (x − 6)² = 9 since it has solutions x=3 and x=9 which are also solutions to X² − 12x + 49 = 22
quadratic formula defined?The quadratic equation ax² + bx + c = 0 can be resolved using the quadratic formula.
that uses the constants (a, b, c) and the numerical coefficients.
When factoring cannot be utilized to solve the quadratic expressions, this approach of solving a quadratic equation is typically used.
x = √(b² - 4ac) / (-b √(b²) / (2a)
We must solve each of the preceding equations to determine which one has the same solution(s) as X²- 12x + 49 = 22 in order to determine which equation has the same solution(s) as X²- 12x + 49 = 22.
Let's start by figuring out X²- 12x + 49 = 22:
X² − 12x + 49 = 22
X² − 12x + 27 = 0
The quadratic formula can then be used to find the value of x:
x = √(b² - 4ac) / (-b√(b²) / (2a)
where a=1; b=-12; and c=27.
x = (-(-12) ±√((-12)² - 4(1)(27))) / (2(1))
x = (12 ±√(144 - 108)) / 2
x = (12 √(36))/ 2
x = (12 6) / 2
x = 6,3
So x = 6,3 is the answer to the equation X²- 12x + 49 = 22.
Let's now resolve each of the provided equations:
M. (x − 6)² = 9 (x -6)² -9=0
(x-6+3)(x-6-3)=0
(x-3)(x-9)=0, where x=3 or x=9
P. (x − 7)² = 22 (x-7)²-22=0
(x-7+√(22))=0
(x=7+√(22))
or (x=7-√(22))
R. (x + 7)² = 4.7 (x+7)²-4.7=0
(x+7+√(4.7))(x+7-√(4.7))=0
No effective remedies
S. (x − 12)²= −27 (x-12)²+27=0
No effective remedies
Therefore, the equation that has the same solution(s) as X² − 12x + 49 = 22 is M. (x − 6)² = 9
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Mr. Liaw has two cylindrical travel mugs that he likes to take on his drive to work. His stainless steel mug has a height of 8.5 inches and a radius of 1.5 inches. What is the volume of the stainless steel mug?
Use ≈3.14 and round your answer to the nearest whole number
Mr. Liaw's ceramic mug has the same volume, but a radius of 2 inches. What is the height of the ceramic mug?
Use ≈3.14 and round your answer to the nearest whole number
Therefore , the solution of the given problem of volume comes out to be ceramic mug has a 5 inch height.
What does volume actually mean?A three-dimensional object's volume, which is expressed in cubic units, indicates how much space it takes up. The indications for cubic measurements are litre and in3. However, you have to be cognizant of an object's volume in order to calculate its dimensions. Converting an object's weight into metric units like iii . and kilogrammes is a standard technique.
Here,
The following formula determines a cylinder's volume:
=> V = π * r² * h
where r is the cylinder's radius and h is its height, and is roughly equivalent to 3.14.
For the mug made of stainless steel:
1.5 inches is the radius (r).
Height in inches (h) is 8.5
With these values entered into the formula, we obtain:
=> V = 3.14 * (1.5)² * 8.5
=> V ≈ 3.14 * 2.25 * 8.5
=> V ≈ 60.14
The stainless steel mug has a 60 cubic inch volume, rounded to the nearest whole number.
Regarding the mug:
Radius (r) equals two inches
Given that it has the same volume as the stainless steel mug, its volume (V) is equal to 60 cubic inches.
=> 60 = 3.14 * (2)²* h
=> h = 60 / (3.14 * 4)
=> h ≈ 4.77
The ceramic mug has a 5 inch height.
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Which set of fractions is not an example of a reciprocal fractions
Answer:
It can be deduced that the set of fractions that is an example of reciprocal fractions include, 1/2, 3/1, and 1/6.
Step-by-step explanation:
PLEASE HELP ME ITS URGENT MY GRADE NEEDS HELP! THIS IS MULTIPLE CHOICE QUESTION!
Which ordered pairs are solutions to the inequality 2x+3y≥−1?
Select each correct answer.
Responses
(0, −1)
begin ordered pair 5 comma negative 1 end ordered pair
(−2, 1)
begin ordered pair negative 2 comma 1 end ordered pair
(0, 1)
begin ordered pair 0 comma 1 end ordered pair
(−6, 0)
begin ordered pair negative 6 comma 0 end ordered pair
(2, −1)
Answer:
b, c, d, f
Step-by-step explanation:
Which ordered pairs are solutions to the inequality?
2x+3y≥−1?
a≥b means that A must be equal to or greater than B.
Let's do this the long, but easy way, by plugging it in!
(x,y)
a. (0,-1) -> -3≥-1 -> false
b. (5,-1)-> 7≥-1 -> true
c. (-2,1) -> -1≥-1 -> true
d. (0,1) -> 3≥-1 -> true
e. (-6,0) -> -12≥-1 - > false
f. (2,-1) -> 1≥-1 -> true
Let me know if it is incorrect!
- a friendly 8th grader :)
Kendrick attends a private school where he must wear a uniform. Last year, the price of the uniform was $52. This year's uniform price was $65. What is the percent of increase in the cost of the uniform?
The percent increase in the cost of the uniform from last year to this year is 25%.
What is the percent of increase in the cost of the uniform?To find the percent increase in the cost of the uniform from last year to this year, we need to calculate the difference between the two prices, divide it by the original price, and then multiply by 100 to express the result as a percentage.
The difference between this year's price and last year's price is:
$65 - $52 = $13
The original price (last year's price) is $52.
So the percent increase in the cost of the uniform is:
percent increase = (difference / original price) x 100
percent increase = ($13 / $52) x 100
percent increase = 0.25 x 100
percent increase = 25%
Therefore, the percent increase in the cost of the uniform from last year to this year is 25%.
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will give brainliest to first answer
space 1 options:
-maximum
-minimum
space 2 options:
0
-2
6
1
space 3 options:
0
-2
6
1
Thus, the function has a minimum value of -2 at x = -1.
Explain about the maxima and minima of function:There are "hills and valleys" in functions, or points where their value reaches a minimum or maximum.
Locally, it may not be the lowest or maximum for the entire function.
An "Absolute" meaning "Global" maximum as well as minimum is the value at which the function has reached its maximum or minimum.There can be more than a local maximum or minimum, but there is only single global maximum (one and global minimum).Stated function:
g(x) = 2x² + 4x
Differentiate the function to find the critical points with respect to x.
g'(x) = 4x + 4 ...eq 1
Put g'(x) = 0
4x + 4 = 0
4(x + 1) = 0
x = - 1 (critical point)
Again Differentiate the function to check for maxima or minima:
g'(x) = 4x + 4
g''(x) = 4
g''(x) > 0 (minimum function)
At x = -1 , the function will be minimum.
Minimum value : Put x = -1 in function.
g(x) = 2(-1)² + 4(-1)
g(x) = 2 - 4
g(x) = -2
Thus, the function has a minimum value of -2 at x = -1.
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What is the domain of the following graph?
Answer:
D
Step-by-step explanation:
Look at the graph and find the lowest x value and the highest x value. We don't use y in the inequality because it is not a range question. Domain relates to x-values and range relates to y-values.
When you have found the lowest and highest x-values, look at their dots. If it is shaded, then the answer would contain a less than sign between the number and variable. If it shaded, then it would contain a less than or equal to sign.
Both of the dots with the lowest and highest values are shaded. And the lowest and highest values are -4 and 4 respectively.
Therefore, the answer is D.