Using trigonometric functions, we can find the value of the missing sides as follows:
AC = 15.48units.
AB = 9units.
Define trigonometric functions?The right triangle's angle serves as the domain input value for the six fundamental trigonometric operations, which return a range of numbers as their output. The angle, expressed in degrees or radians, is the domain of the trigonometric function of f(x) = sin, also referred to as the "trig function," and its range is [-1, 1]. In terms of their domain and scope, the other functions are comparable. Algebra, geometry, and calculus all make extensive use of trigonometric functions.
Here in the question,
As per the trigonometric function:
Sin30° = opposite side/hypotenuse
⇒ 1/2 = AB/18
Cross multiplying:
⇒ AB = 18/2
⇒ AB = 9units.
Now,
Cos30° = adjacent side/hypotenuse
⇒ 0.86 = AC/18
Cross multiplying:
⇒ AC = 15.48units.
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The graph shows the number of handbags that Mandy made in one day. What are the variables? Describe how the variables are related.
A 40-year-old person who wants to retire at age 60 starts a yearly retirement contribution in the amount of $6,000. The retirement account is forecasted to average a 5% annual rate of return, yielding a total balance of $198,395.72 at retirement age. If this person had started with the same yearly contribution at age 30, what would the difference be in the account balances? A spreadsheet was used to calculate the correct answer. Your answer may vary slightly depending on the technology used. a. $200,732.63 b. $200,237.36
c. $398,633.09 d. $389,633.90
Answer: B.
200,237.36
Step-by-step explanation: just got it right on the quiz
How to do this cuz I’m a little slow
1
At the beginning of the passage, what is Makayla getting ready to do?
A
open Christmas presents
(в
go trick-or-treating on Halloween
go on an Easter egg hunt
eat Thanksgiving dinner
2 Throughout the story, Makayla remembers information Mrs. Narula taught in
class. What does this information describe?
a) The passage is a piece of written text that provides information about Makayla's experience during an Easter egg hunt. (option c)
(b) It also highlights how knowledge gained in the classroom can be applied to everyday life.
At the beginning of the passage, Makayla is getting ready to go on an Easter egg hunt. This is evident from the line "Makayla was getting ready for the Easter egg hunt at the park." Easter egg hunts are a popular tradition in many parts of the world, where children search for hidden eggs that are often filled with candy or small toys.
Hence the correct option is (c).
Throughout the story, Makayla remembers information that Mrs. Narula taught in class. Mrs. Narula is Makayla's science teacher, and the information she taught in class is about the process of photosynthesis. Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into oxygen and sugar.
Makayla remembers this information as she observes the trees and plants in the park during the Easter egg hunt. She notes that the plants are producing oxygen through photosynthesis and that this process is essential for the survival of all living beings.
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LOT OF POINTS AND BRAINLIEST IF YOU'RE RIGHT:
Public opinion in the large city of Hillwood is that 62 percent of the residents are in favor of increasing taxes to fund afterschool programs and 38 percent are against the increase. What is the approximate probability that more than 180 of the residents surveyed will be against increasing taxes if a random sample of 450 residents are surveyed? (4 points)
Answer:
0.16%
Step-by-step explanation:
Imagine you are a politician who wants to increase taxes in your city. You decide to conduct a survey among 450 residents to see how many of them are against your proposal. You know that the probability of finding someone who is against increasing taxes is 0.38. You hope that the survey will show that most people support your idea, or at least that the opposition is not too strong. However, when you get the results, you are shocked to see that more than 180 people are against increasing taxes. How unlucky are you? Well, let's do some math. This is a binomial probability problem. The probability of success (being against increasing taxes) is p = 0.38 and the number of trials (residents surveyed) is n = 450. The question asks for the probability of more than 180 successes, which is equivalent to the probability of at least 181 successes. Using a binomial calculator, the answer is approximately 0.0016 or 0.16%. That means that there is only a 0.16% chance of getting at least 181 people against increasing taxes in a sample of 450 residents. That's very rare and unlucky indeed! You might want to reconsider your proposal or find a better way to convince people that paying more taxes is good for them.
please give a step by step ASAP
The correct option is the fourth one, the slope and y-intercept are different.
Which statement is correct?Here we have the linear equation:
3x - 5y = 4
We know that it is dilated by a scale factor of 5/3, so let's find the dilation.
We can rewrite the linear equation as:
-5y = 4 - 3x
y = (3/5)x - 4/5
Now let's apply the dilation:
y = (5/3)*[ (3/5)x - 4/5]
y = x - 4/3
Then we can see that the slope and the y-intercept are different, the correct option is 4.
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Find the surface area the regular pyramid 10m 8m 6.9m
The requried surface area of the regular pyramid is 147.6 cubic meters.
The surface area of the regular pyramid is given as:
Surface area = base area + 1/2 [perimeter×slant height]
Surface area = 1/2 × base × height + 1/2 [perimeter×slant height]
Surface area =1/2 × 8 × 6.9 + 1/2 [3×8 × 10]
Surface area =147.6 cubic meters
Thus, the requried surface area of the regular pyramid is 147.6 cubic meters.
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Julie rents bicycles in a tourist town. The table shows how many of each type of bicycle Julie rented over the
weekend and the money she received from the rentals. Determine the cost to rent each kind of bicycle.
Answer: Since we don't have the actual table, we can't provide an exact answer. However, we can explain the general method for solving this type of problem.
Let's say that Julie rented three types of bicycles: type A, type B, and type C. Let's also say that she rented a certain number of each type, and received a certain amount of money from each type. We can set up the following equations based on this information:
Cost to rent type A bike = (Amount received for type A rentals) / (Number of type A bikes rented)
Cost to rent type B bike = (Amount received for type B rentals) / (Number of type B bikes rented)
Cost to rent type C bike = (Amount received for type C rentals) / (Number of type C bikes rented)
We can then solve for each cost by plugging in the given numbers from the table. For example, if the table shows that Julie rented 10 type A bikes and received $200 in rental fees, we would have:
Cost to rent type A bike = $200 / 10 = $20
We can do this for each type of bike to find the cost to rent each kind of bicycle.
It's worth noting that the actual equations may look slightly different depending on the specific information provided in the table. For example, if the table gives the total number of bikes rented and the total amount received, we would need to use slightly different equations to solve for the individual costs.
given that sinθ= -4/5 and π<θ<3π/2, find the exact values of the following
sin2θ
cos2θ
Answer:
We can use the double angle formulas to find sin(2θ) and cos(2θ):
sin(2θ) = 2sin(θ)cos(θ)
cos(2θ) = cos^2(θ) - sin^2(θ)
Since sin(θ) = -4/5 and θ is in the third quadrant (π < θ < 3π/2), we can use the Pythagorean identity to find cos(θ):
sin^2(θ) + cos^2(θ) = 1
cos^2(θ) = 1 - sin^2(θ)
cos(θ) = -√(1 - sin^2(θ))
cos(θ) = -√(1 - (-4/5)^2) = -√(1 - 16/25) = -√(9/25) = -3/5
Now we can substitute these values into the double angle formulas:
sin(2θ) = 2sin(θ)cos(θ) = 2(-4/5)(-3/5) = 24/25
cos(2θ) = cos^2(θ) - sin^2(θ) = (-3/5)^2 - (-4/5)^2 = 9/25 - 16/25 = -7/25
Therefore, the exact values of sin(2θ) and cos(2θ) are sin(2θ) = 24/25 and cos(2θ) = -7/25, respectively.
Finally, we can find the value of sin^2(2θ)cos^2(2θ):
sin^2(2θ)cos^2(2θ) = (sin(2θ))^2(cos(2θ))^2
sin^2(2θ)cos^2(2θ) = (24/25)^2(-7/25)^2
sin^2(2θ)cos^2(2θ) = 24^2/25^2 * 7^2/25^2
sin^2(2θ)cos^2(2θ) = (24*7)^2/25^4
Therefore, the exact value of sin^2(2θ)cos^2(2θ) is (24*7)^2/25^4.
In regression and correlation analysis, if SSE and SST are known, then with this information the
A) coefficient of determination can be computed
B) slope of the line can be computed
C) Y intercept can be computed
D) x intercept can be computed
A) The coefficient of determination can be computed using the SSE and SST values in regression and correlation analysis.
SSE (Sum of Squared Errors) is the sum of the squared differences between the actual and predicted values of the dependent variable. SST (Total Sum of Squares) is the sum of the squared differences between the actual values of the dependent variable and their mean.
The coefficient of determination, denoted as R², measures the proportion of the variance in the dependent variable that can be explained by the independent variable(s) in a regression model.
It is calculated as follows:
R² = 1 - (SSE/SST)
Since both SSE and SST are given, you can compute the coefficient of determination.
However, the information provided is not sufficient to calculate the slope, Y-intercept, or X-intercept of the regression line.
Based on the given information, the correct answer is:
A) Coefficient of determination can be computed.
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This coefficient of determination (R²) gives you a measure of how well the regression line fits the data in your correlation analysis.
A) The coefficient of determination can be computed with the known values of SSE (sum of squared errors) and SST (total sum of squares) in regression and correlation analysis. The coefficient of determination is a measure of how well the regression line fits the data and is expressed as a percentage. It represents the proportion of variability in the dependent variable (Y) that can be explained by the independent variable (X).
Based on the information provided, with the known SSE (Sum of Squares Error) and SST (Sum of Squares Total), you can compute the coefficient of determination. So, the correct answer is:
A) Coefficient of determination can be computed
To calculate the coefficient of determination (R²), follow these steps:
1. Calculate the Sum of Squares Regression (SSR) by subtracting SSE from SST:
SSR = SST - SSE
2. Compute the coefficient of determination (R²) by dividing SSR by SST:
R² = SSR / SST
This coefficient of determination (R²) gives you a measure of how well the regression line fits the data in your correlation analysis.
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Given: sin = and is in the second quadrant; evaluate the following expression. cos 2 = -7/9 -1/9 1/9
Trigonometric ratios allow us to determine the value of Cos²θ to be = 5/9. As a result, choice D is the best one.
Define trigonometric ratios?Triangle side ratios are known as ratios of trigonometry. These ratios demonstrate how a right triangle's edges to angles ratio functions in mathematics. The sine, cosine, and tangent trigonometric ratios are the fundamental three. The sin, cos, and tan functions can be used for calculating the other significant trig ratios, cosec, sec, and cot.
Here in the question,
Sinθ = 2/3
Now,
Cos²θ = 1 - Sin²θ
= 1- (2/3) ²
= 1 - 4/9
= (9-4)/9
= 5/9
Therefore, the value of Cos²θ = 5/9.
Option D is the correct option.
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The complete question is:
Given: sinθ = 2/3 and is in the second quadrant; evaluate the following expression: cos²θ
a). -7/9
b). -1/9
c). 1/9
d). 5/9
Convert the following decimals to percents.
1.37 =_%
Answer:
137%
Step-by-step explanation:
1.37 x 100 = 137%
What is the media, mode, range, and mean for 39, 82, 74, 96, 64, 52,74
Can you give me a hand with this. I am very confuesd how to do this and would like to know how also involving the answer would be amazing
The probability of not getting a purple after turning the spinner would be = 0.75
How to calculate the probability of not getting a purple?To calculate the probability of the given sample;
= possible outcome/sample space
where;
possible outcome = 3
sample space = 4
Probability = 3/4 = 0.75
Therefore, the probability of not getting a purple colour would be = 0.75
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A toy manufacturer produced millions of the latest popular toy. Over time, the popularity of the toy faded. What is likely to happen to the price of the toy after it lost popularity and why?
A.The price would go up, because demand decreased.
B.The price would go up, because supply decreased.
C.The price would go down, because supply decreased.
D.The price would go down, because demand decreased.
What will likely happen to the price of the toy after it lost popularity is that the price would go down, because demand decreased. That is option D.
What is the effect of decrease in popularity of a product?The effect of decrease in the popularity of a product affects both it's demand and the cost price.
Since the product is less needed by the consumers and population at large the manufacturer would adjust the cost price to enhance its sales output at the end of each business month.
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estimate 15.58 - 7.237 by first rounding each number to the nearest tenth
After rounding , The calculated result of 15.58 - 7.237 is therefore around 8.4
What does rounding mean?When a number is rounded, it is approximated by using a smaller, more straightforward number that is near to the original value. For instance, 3.141 is the result of rounding 3.14159 to two decimal points.
We can round 15.58 to 15.6 and 7.237 to 7.2 to estimate 15.58 - 7.237 by first rounding each number to the nearest tenth
. After that, we may take 7.2 away from 15.6 to get:
15.6 - 7.2 = 8.4
The calculated result of 15.58 - 7.237 is therefore around 8.4
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Question 12(Multiple Choice Worth 2 points)
(Making Predictions MC)
A recent conference had 750 people in attendance. In one exhibit room of 70 people, there were 18 teachers and 52 principals. What prediction can you make about the number of principals in attendance at the conference?
There were about 193 principals in attendance.
There were about 260 principals in attendance.
There were about 557 principals in attendance.
There were about 680 principals in attendance.
Thus, we may estimate that there were 557 principals present at the meeting.
Explain about the Proportion:A mathematical comparison of two numbers is called a percentage. These figures frequently serve as a comparison between various objects or individuals. Take the scenario where you entered a crowded room as an example.
We can forecast how many principals will attend the conference according to the data supplied.In a room with 70 individuals in total and 52 principals, the ratio of principals to attendees would be as follows:52/70 = 0.743 or 74.3%
Applying this ratio to the total number of attendees, we can extrapolate the proportion of principals at the conference, assuming that it is reflective of the conference as a whole:
Total principals at conference = Proportion of principals x Total number of attendees
Total principals at conference = 0.743 x 750
Total principals at conference ≈ 557
As a result, we may estimate that there were 557 principals present at the meeting.
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steps for u-sub w/ definite integrals
Here are the general steps for using the u-substitution method to evaluate a definite integral:
1. Identify a part of the integrand that looks like the derivative of another function.
This is usually denoted as u, and u should be a function that is easy to integrate.
2. Replace the selected part of the integrand with u. In other words, substitute u for the expression inside the integral.
3. Take the derivative of u with respect to the variable of integration, and then multiply by dx to obtain du.
4. Replace dx with the expression in terms of du, using the relationship you found in step 3.
5. Rewrite the entire integral in terms of u and du, and simplify as much as possible.
6. Evaluate the integral using u and the limits of integration. Replace u with the original expression, and then evaluate the expression at the upper and lower limits of integration.
7. Substitute the values obtained in step 6 into the original equation to get the final answer.
The u-substitution method is a powerful technique for evaluating definite integrals.
The general idea behind the u-substitution method is to replace a complicated expression inside the integral with a simpler expression, which is equal to the original expression.
Here are the general steps for using the u-substitution method to evaluate a definite integral:
Let's take an example to illustrate these steps:
Evaluate the definite integral ∫[tex](2x + 1)^(3/2) dx from x = 1 to x = 2.[/tex]
Let u = 2x + 1.
Replace 2x + 1 with u in the integral to get ∫[tex]u^{3/2} dx.[/tex]
Take the derivative of u with respect to x to get du/dx = 2, and then multiply by dx to obtain du = 2dx.
Replace dx with 1/2 du.
Rewrite the entire integral in terms of u and du to get ∫[tex]u^{3/2} (1/2) du.[/tex]
Evaluate the integral using u and the limits of integration to get (2/5) [tex]u^{5/2}[/tex] from 3 to 5.
Substitute the values obtained in step 6 into the original equation to get the final answer, which is[tex](2/5) [(5^{5/2}- 3^{5/2}].[/tex]
Therefore, the value of the definite integral ∫[tex](2x + 1)^{3/2}[/tex]dx from x = 1 to x = 2 is approximately 6.243.
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46×28. The last problem I posted was 4×6. Please don’t answer that question. It is wrong Please send me a picture of how you do this. this is my homework.
Answer:1288
Step-by-step explanation:
Answer: 1,288.
The Picture Below and the explanation
Step-by-step explanation: You Multiply 6 times 8 to get 48. Then you put 4 on top of 46. Next, you multiply 4 times 8 and add 4 to add 36 as two digits below the first line of multiplication. Next, you cross out the 8 then you do a new set of multiplication starting with 6 times two which is 12 carry the one above four in a different direction ( it might look like a capital I but it is just 1). Then, multiply 4 times 2 plus 1 is 9. Last, you add 368+920= 1,288 and there is your answer. I hope this will help.
Jamar is going to invest in an account paying an interest rate of 4.7% compounded quarterly. How much would Jamar need to invest, to the nearest ten dollars, for the value of the account to reach $18,000 in 7 years?
Jamar would need to invest approximately $12,115.77, rounded to the nearest ten dollars, for the value of the account to reach $18,000 in 7 years using compound interest.
Compound interest calculation.
We can use the formula for compound interest to solve for the initial investment amount, which is:
A = P(1 + r/n)^(nt)
where A is the future value, P is the principal (initial investment), r is the annual interest rate (as a decimal), n is the number of times the interest is compounded per year, and t is the time in years.
In this case, we want to find P, and we know that A = $18,000, r = 0.047, n = 4 (quarterly compounding), and t = 7. Substituting these values, we get:
$18,000 = P(1 + 0.047/4)^(4*7)
$18,000 = P(1.01175)^28
P = $12,115.77
Therefore, Jamar would need to invest approximately $12,115.77, rounded to the nearest ten dollars, for the value of the account to reach $18,000 in 7 years.
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22 ft
30 ft
Find the area of each triangle
Write the problem 125×64 in expanded form
The problem "125×64" in expanded-form is written as (100 × 60) + (100 × 4) + (20 × 60) + (20 × 4) + (5 × 60) + (5 × 4).
In mathematics, the "Expanded-Form" is defined a way of representing a number as a sum of its constituent parts, usually using place value notation.
It involves expressing a number as the sum of its individual-digits or place value components, such as units, tens, hundreds, thousands, etc., multiplied by their respective place value powers of 10.
We have to write the product "125 × 64" in the expanded form,
So, the product "125 × 64" in expanded form can be written as :
⇒ 125 × 64 = (100 + 20 + 5) × (60 + 4),
⇒ (100 × 60) + (100 × 4) + (20 × 60) + (20 × 4) + (5 × 60) + (5 × 4),
Therefore, the expanded form of 125 × 64 is: (100 × 60) + (100 × 4) + (20 × 60) + (20 × 4) + (5 × 60) + (5 × 4).
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Solve for x trigonometry
Answer:
Set your calculator to degree mode.
x = tan^-1 (6/8) = 36.87°
The mean on a Biology test was 78. What is your score on the test if you scored 2 deviations above the mean with a standard deviation of 8?
Your score on the Biology test is 94.
How to find your score on the test if you scored 2 deviations above the mean with a standard deviation of 8?If you scored 2 deviations above the mean, that means your score is 2 standard deviations above the mean. Since the standard deviation is 8, 2 standard deviations above the mean is:
2 * 8 = 16
Thus, your score on the test is:
78 + 16 = 94
Therefore, your score on the Biology test is 94 if you scored 2 deviations above the mean with a standard deviation of 8.
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When the explanatory variable is categorical and the response variable is quantitative, what type of plot would be appropriate?
When the explanatory variable is categorical and the response variable is quantitative, a box plot or a bar plot would be appropriate to display the relationship between the two variables.
When the explanatory variable is categorical and the response variable is quantitative, a box plot or a bar plot would be appropriate.
A box plot (also known as a box-and-whisker plot) displays the distribution of the response variable within each category of the explanatory variable. It shows the median, quartiles, and outliers of the data, making it useful for visualizing differences in central tendency and spread between categories.
A bar plot (also known as a bar chart) displays the mean, median, or sum of the response variable for each category of the explanatory variable. It is useful for comparing the values of the response variable between categories.
Both box plots and bar plots are effective in displaying the relationship between a categorical variable and a quantitative variable. The choice between the two would depend on the specific research question, the nature of the data, and the intended audience.
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These plots help visualize the distribution of the quantitative response variable across different categories in the explanatory variable.
When the explanatory variable is categorical and the response variable is quantitative, a bar chart or a box plot would be appropriate. A bar chart displays the mean or median of each category, while a box plot displays the distribution of each category including the median, quartiles, and outliers. These plots help to visualize the relationship between the categorical and quantitative variables and identify any patterns or differences between categories.
When the explanatory variable is categorical and the response variable is quantitative, an appropriate type of plot to use would be a box plot or a violin plot. These plots help visualize the distribution of the quantitative response variable across different categories in the explanatory variable.
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2. Given: MNOP is a rectangle.
Show: The diagonals bisect each other, and the diagonals are congruent.
M
P
O
DA
We have shown that the diagonals of rectangle MNOP bisect each other and are congruent.
Describe Diagonal?In geometry, a diagonal is a line segment connecting two non-adjacent vertices of a polygon, such as a triangle, quadrilateral, or higher-order polygon. For example, in a rectangle, the diagonals are the line segments connecting opposite corners.
A diagonal can also refer to a line segment connecting two opposite corners of a three-dimensional solid, such as a cube or rectangular prism.
In many cases, diagonals have important properties and can be used to solve geometric problems. For example, in a rectangle, the diagonals are congruent and bisect each other. In a regular polygon with n sides, the number of diagonals can be calculated using the formula (n(n-3))/2. The length of a diagonal in a right triangle can be found using the Pythagorean theorem.
To show that the diagonals of rectangle MNOP bisect each other, we need to prove that the midpoint of diagonal MP is the same as the midpoint of diagonal NO.
Let's find the coordinates of the midpoints of MP and NO:
Midpoint of MP:
((x1 + x2)/2, (y1 + y2)/2)
= ((-7 + 5)/2, (1 - 7)/2)
= (-1, -3)
Midpoint of NO:
((x1 + x2)/2, (y1 + y2)/2)
= ((5 - 7)/2, (1 - 7)/2)
= (-1, -3)
As we can see, the midpoint of MP and NO are both (-1, -3), which means the diagonals bisect each other.
To show that the diagonals of rectangle MNOP are congruent, we need to find the length of both diagonals and prove that they are equal.
Let's find the length of diagonal MP:
MP = √((5 - (-7))² + ((-7) - 1)²)
= √(12² + (-8²)
= √(144 + 64)
= √(208)
Let's find the length of diagonal NO:
NO = √((5 - (-7))² + (1 - (-7)²)
= √(12² + 8²)
= √(144 + 64)
= √(208)
As we can see, the length of both diagonals is sqrt(208), which means the diagonals are congruent.
Therefore, we have shown that the diagonals of rectangle MNOP bisect each other and are congruent.
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Dane is using two differently sized water pumps to clean up flooded water. The larger pump can remove the water alone in 240 min240min240, start text, m, i, n, end text. The smaller pump can remove the water alone in 400 min400min400, start text, m, i, n, end text. How long would it take the pumps to remove the water working together?
It would take the two pumps working together approximately 240 minutes to remove the water.
To determine how long it would take the two pumps to remove the water working together, we can use the concept of work rates. Specifically, we can determine the work rates of each pump and then add them together to find the combined work rate when both pumps are working together.
Let's start by defining some variables:
Let L be the rate of the larger pump, in units of water volume per minute.
Let S be the rate of the smaller pump, in the same units as L.
Let T be the time it takes for both pumps to remove the water working together, in minutes.
From the problem statement, we know that the larger pump can remove all the water alone in 240 minutes. This means that its work rate is 1/240, since it can remove 1 unit of water volume in 240 minutes. Similarly, the smaller pump has a work rate of 1/400.
When both pumps are working together, their work rates add up. Therefore, we can set up an equation as follows:
L + S = 1/T
Substituting the work rates we found earlier, we get:
1/240 + 1/400 = 1/T
Simplifying this equation, we get:
1/T = 0.0041667
Solving for T, we get:
T = 1/0.0041667 ≈ 240.001 minutes
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Ryan rented a truck for one day. There was a base fee of $16.99 , and there was an additional charge of 76 cents for each mile driven. Ryan had to pay $175.83 when he returned the truck. For how many miles did he drive the truck?
Answer:
153.47 Miles
Step-by-step explanation:
Starting with the total return fee you subtract the base fee from it
Then Divide the that total by .76
And there you go
Thanks for the Submission
An experiment consists of rolling two fair number cubes. The diagram shows the sample space of all equally likely outcomes. What is the probability of rolling two 3's? Express your answer as a fraction in simplest form.
the probability of rolling two 3's is 1/36.Since we are rolling two number cubes, the sample space contains 6x6 = 36 equally likely outcomes, one for each possible pair of numbers that can be rolled.
what is probability ?
Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. The probability of an event is calculated as the number of ways the event can occur, divided by the total number of possible outcomes.
In the given question,
Since we are rolling two number cubes, the sample space contains 6x6 = 36 equally likely outcomes, one for each possible pair of numbers that can be rolled.
To find the probability of rolling two 3's, we need to count the number of outcomes that result in two 3's, and divide by the total number of possible outcomes.
From the diagram, we can see that there is only one outcome that results in two 3's, namely the outcome where the first cube shows a 3 and the second cube shows a 3. Therefore, the number of favorable outcomes is 1.
The probability of rolling two 3's is therefore:
P(rolling two 3's) = favorable outcomes / total outcomes = 1/36
So the probability of rolling two 3's is 1/36.
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A mother is 25 years older than her daughter If the daughter's age is x years? (a) Express the mother's age in terms of x (b) Find x when the daughter's is one third of her mother's age
a) The linear equation is:
y = 25 + x
b) When the daughter's is one third of her mother's age we will have x = 12.5
How to express the mother's age in terms of x?We know that the mother is 25 years older than the daughter, so, if the daughter's age is x, the mother's age can be defined as the linear equation:
y = 25 + x
b) When the daughter's age is one third of her mother's, we have:
x = (1/3)*y
3x = y
Replacing that in the equation above we will get:
3x = 25 + x
3x - x = 25
2x = 25
x = 25/2 = 12.5
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