The speed of 50 mph is equivalent to 80.47 km/h.
Mph is an abbreviation for miles per hour, and it is a unit of measurement commonly used in the United States. On the other hand, km/h stands for kilometers per hour, and it is a unit of measurement commonly used in most other countries.
To convert 50 mph to km/h, we need to use a conversion factor that relates the two units.
The conversion factor we need to use in this case is 1 mile = 1.60934 kilometers. This means that for every mile covered, there are 1.60934 kilometers covered. To convert 50 mph to km/h, we simply need to multiply 50 by the conversion factor, as shown below:
50 mph x 1.60934 km/mi = 80.47 km/h
Therefore, 50 mph is equivalent to 80.47 km/h. This means that if you were driving at 50 mph in the United States, you would be traveling at a speed of 80.47 km/h if you were to convert to km/h in another country.
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Wich number is greater and by how much
600 or 600 decreased by 20% then increased by 20% of the result.
PLS HELP LOL
To calculate the value of "600 decreased by 20%", we can multiply 600 by 0.8:
600 × 0.8 = 480
To calculate "600 decreased by 20% and then increased by 20% of the result", we need to multiply 480 by 1.2:
480 × 1.2 = 576
Therefore, 600 decreased by 20% and then increased by 20% of the result is 576.
To find out which number is greater and by how much, we can subtract 576 from 600:
600 - 576 = 24
So, 600 is greater than 600 decreased by 20% and then increased by 20% of the result, by 24.
A 3-meter roll of brown paper costs $0.71. What is the unit price, rounded to the nearest cent?
Answer:
$0.24 per m
Step-by-step explanation:
What is the 6 times table?
The 6 times table is a multiplication table that shows the results of multiplying any number by 6.
It is a fundamental arithmetic skill that students typically learn in elementary school, and is an important building block for more advanced math concepts.
To generate the 6 times table, you simply multiply 6 by each whole number starting with 1, and continue the pattern up to a desired number. The first few products in the 6 times table are as follows:
1 x 6 = 6
2 x 6 = 12
3 x 6 = 18
4 x 6 = 24
5 x 6 = 30
6 x 6 = 36
7 x 6 = 42
8 x 6 = 48
9 x 6 = 54
10 x 6 = 60
...
and so on.
It is important for students to memorize the 6 times table, as it can be used to solve a variety of math problems involving multiplication, division, fractions, and decimals. Mastery of the 6 times table is also a key step in preparing for more advanced math concepts, such as algebra and calculus.
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Determine whether if it is possible to form a triangle with the given side lenghts. AB = 2cm, BC = 8cm, AC = 5cm
Answer:
no because if one of the side is 2, if we calculate semi perimeter it will be 7.5 which is greater
A man claims to have extrasensory perception (ESP). As a test, a fair coin is flipped 30 times, and the man is asked to predict the outcome in advance. He gets 22 out of 30 correct. What is the probability that he would have done at least this well if he had no ESP?
the probability that the man would have done at least as well as 22 out of 30 correct predictions by chance alone is approximately 0.149 or 14.9%, which suggests that his ESP claim may not be supported by the coin flip test results alone.
To determine the probability that the man would have gotten at least 22 correct coin flip predictions if he had no ESP, we can use a statistical tool called a binomial distribution. Assuming the coin is fair, the probability of getting any single coin flip prediction correct is 0.5, since there are only two possible outcomes (heads or tails) and they are equally likely. We can use this probability to calculate the probability of getting exactly 22 correct predictions out of 30 coin flips, which is:
P(X = 22) = (30 choose 22) {multiply} 0.5^22 {multiply} 0.5{power}8 = 0.099
This means that the probability of getting exactly 22 correct predictions by chance is less than 10%. However, the question asks for the probability of getting at least 22 correct predictions, which includes the probabilities of getting 23, 24, 25, 26, 27, 28, 29, or 30 correct predictions as well.
To calculate this cumulative probability, we can add up the probabilities of getting each of these outcomes separately:
P(X >= 22) = P(X = 22) + P(X = 23) + ... + P(X = 30)
Using a binomial distribution table or calculator, we can find that this cumulative probability is approximately 0.149.
Therefore, the probability that the man would have done at least as well as 22 out of 30 correct predictions by chance alone is approximately 0.149 or 14.9%, which suggests that his ESP claim may not be supported by the coin flip test results alone.
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how much is 1000 mcg to mg
To convert mcg to mg, divide the mcg value by 1000. Therefore:
1000 mcg = 1000/1000 mg = 1 mg
So, 1000 mcg is equal to 1 mg.
It is estimated that, during the past year, 27% of all adults visited a therapist and 43% of all adults used antidepressants. It is also estimated that 20% of all adults both visited a therapist and used a antidepressant during the past year.
(a)What is the probability that a randomly selected adult who visited a therapist during the past year also used antidepressants? Round your answer to the nearest hundredth.
(b)What is the probability that an adult visited a therapist during the past year, given that he or she used antidepressants? Round your answer to the nearest hundredth.
(a) To find the probability that a randomly selected adult who visited a therapist during the past year also used antidepressants, we use the formula:
P(A|B) = P(A and B) / P(B)
where A is the event that an adult used antidepressants, and B is the event that an adult visited a therapist. We are given:
P(A) = 0.43
P(B) = 0.27
P(A and B) = 0.20
Plugging these values into the formula, we get:
P(A|B) = 0.20 / 0.27 ≈ 0.74
Therefore, the probability that a randomly selected adult who visited a therapist during the past year also used antidepressants is approximately 0.74.
(b) To find the probability that an adult visited a therapist during the past year, given that he or she used antidepressants, we use Bayes' theorem:
P(B|A) = P(A|B) * P(B) / P(A)
where A and B are defined as before. We have already calculated P(A|B) and P(B), and we know:
P(A) = 0.43
Plugging these values into Bayes' theorem, we get:
P(B|A) = (0.74 * 0.27) / 0.43 ≈ 0.47
Therefore, the probability that an adult visited a therapist during the past year, given that he or she used antidepressants, is approximately 0.47.
Can someone please help me with this question?
A semicircle has radius 5.6cm. Work out the perimeter of the semicircle.
Answer:
28.79 cm.
Step-by-step explanation:
The perimeter of a semicircle is equal to the sum of the diameter (which is twice the radius) and half of the circumference of the circle.
The diameter of the semicircle is 2 × 5.6cm = 11.2cm.
The circumference of a full circle with radius 5.6cm is 2π × 5.6cm = 11.2π cm.
Therefore, the circumference of the semicircle is 1/2 of the circumference of the full circle, which is 1/2 × 11.2π cm = 5.6π cm.
The perimeter of the semicircle is the sum of the diameter and the circumference, which is:
11.2cm + 5.6π cm ≈ 28.79cm (rounded to two decimal places)
Therefore, the perimeter of the semicircle is approximately 28.79 cm.
Answer:
pi ( 5.6 ) + 11.2 or approximately 28.79291 cm
Step-by-step explanation:
The outside of the semicircle or the perimeter is 1/2 of the circumference and the length that closes the circle is the diameter.
Perimeter = 1/2 C + d
= 1/2 *pi*d + d
The diameter is 2 times the radius.
= 1/2 ( pi) * (2r) + 2r
= pi r + 2 r
= pi ( 5.6 ) + 11.2
Approximating pi, we get approximately 28.79291
Multiple choice, word question about triangles. Should be easy, 20 points.
Answer:
Step-by-step explanation:
An equilateral right-angled triangle is impossible to draw. Equilateral means all the sides measure the exact same length. In a right triangle, by definition, the hypotenuse is longer than either of the other sides. so the last choice is the one you want.
Answer:
an equilateral right triangle cannot exist, all angles are 60° and therefore NOT right
Step-by-step explanation:
an equilateral right triangle cannot exist, all angles are 60° and therefore NOT right
what is 25 as a decimal?
The number 25 can be represented as a decimal by simply writing it as 25.0 or 25.00
The number 25 can be represented as a decimal by simply writing it as 25.0 or 25.00. This is because decimal notation is a way of writing numbers that uses a decimal point to separate the whole number part from the fractional part.
In this case, since 25 is a whole number and has no fractional part, we can represent it in decimal form by adding a decimal point and a zero or two zeros after it to indicate that there are no decimal places.
Alternatively, we can also represent 25 as a decimal by dividing it by 1, which does not change its value, and then expressing the quotient as a decimal. Since 25 divided by 1 equals 25, we can write 25 as a decimal by dividing 25 by 1 and writing the quotient as follows:
25 ÷ 1 = 25.000000... (with the decimal places repeating indefinitely)
However, in most cases, it is sufficient to represent 25 as 25.0 or 25.00, since these notations convey that the number has no fractional part.
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how to convert 50cm to in
50cm is equal to 19.685 inches.
Measurement is a crucial aspect of our lives, and it helps us to determine the quantity, size, or amount of things. Different units of measurement are used to measure various objects, and it is essential to know how to convert from one unit to another. In this article, we will discuss how to convert 50cm to inches, which are both commonly used measurements.
To convert 50cm to inches, we need to know the conversion factor between centimeters and inches. One inch is equal to 2.54 centimeters, which means that we can convert centimeters to inches by dividing the measurement by 2.54.
So, to convert 50cm to inches, we need to divide 50 by 2.54. We can do this using a calculator or by long division.
50 / 2.54 = 19.685 inches
In this case, we have learned how to convert 50cm to inches, which involves dividing the measurement by 2.54.
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Find the length of X
Answer:
[tex]x=3, x=\frac{17}{4}[/tex]
Step-by-step explanation:
The side opposite to the length of 20 is 7x - 11, whereas the side opposite to an unknown length is 4x - 2. To solve this unknown length, we are given 35 as the total length, so we can do 35-20 = 15, which is the opposite of the length of 4x-2.
Since we know the opposite sides of each side, we can set up these equations since we notice that the lengths are parallel based on what is diagrammed:
[tex]7x-11=20[/tex]
[tex]4x-2=15[/tex]
Now, let's solve for x in [tex]7x-11=20[/tex]:
[tex]7x-11=20[/tex]
[tex]7x=20+11\\7x=21\\x=3[/tex]
Let's solve for x in [tex]4x-2=15[/tex]:
[tex]4x-2=15[/tex]
[tex]4x=15+2\\4x=17\\x=\frac{17}{4}[/tex]
what is rational number definition?
A rational number is a number that can be expressed as the ratio of two integers, where the denominator is not zero.
A normal number is a number that can be communicated as the proportion of two whole numbers, where the denominator isn't equivalent to nothing. This implies that a normal number can be written in the structure p/q, where p and q are numbers and q isn't equivalent to nothing.
For instance, 3/4, 7/2, and - 5/6 are instances of normal numbers. Be that as it may, numbers like pi (π) and the square foundation of 2 (√2) are not objective, since they can't be communicated as a proportion of two numbers.
Normal numbers are significant in math, as they structure a subset of the genuine numbers and can be utilized to address amounts in a wide range of settings, like portions, proportions, and probabilities. They are additionally utilized broadly in polynomial math, where they structure the reason for tackling conditions and controlling articulations.
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How Long Is 500 Minutes In Hours And Minutes?
500 minutes are equal to 8 hours and 20 minutes.
Time is a valuable commodity that we must use wisely. We measure it in seconds, minutes, hours, days, weeks, months, and years. It is important to be able to convert time units so that we can manage our schedule efficiently.
To convert minutes to hours, we need to divide the number of minutes by 60, which is the number of minutes in an hour. Therefore,
500 minutes ÷ 60 minutes/hour = 8.33 hours
However, this answer is in decimal form, which is not a typical way to represent time. We want to express it in hours and minutes.
To do so, we will use the fact that there are 60 minutes in an hour. Therefore, we can multiply the decimal part of the answer by 60 to get the remaining minutes.
0.33 hours x 60 minutes/hour = 20 minutes
So, 500 minutes is equivalent to 8 hours and 20 minutes.
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Use powers of 16 in the top row. Use radicals or rational numbers in the second row
The table given in the answer is an example of a conversion table that shows the decimal equivalents of powers of 16. The first row contains the values of 16 raised to the powers of 4, 3, 2, 1, and 0, respectively. The second row shows the equivalent decimal values of these powers of 16.
16⁴ 16³ 16² 16 1
256 64 16 4 1
These values could also be expressed using radicals or rational numbers, but in this case, the decimal form is simpler and more commonly used.
This can be calculated as 16 x 16 x 16 x 16, which equals 65,536. Similarly, the second entry in the first row is 16³, which means 16 raised to the third power.
To understand why this is the case, we need to convert 16⁴ to decimal form. This can be done by multiplying each digit in the binary representation of 16⁴ by the corresponding power of 2 and adding up the results.
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x -3y =12 in slope-intercept form
Answer:
y = (1/3)x - 4
Step-by-step explanation:
put y on one side
x -3y =12
y =12-x/-3
y=12/-3 -x/-3
y=-4 + 1/3x
chatgpt
Evaluate the triple integral ∭Ex8eydV, where E is bounded by the parabolic cylinder z=16−y2z=16 and the planes z=0,x=4,and x=−4
Refer to the images attached.
adding and subtracting rational expressions. Complete the following steps to find the LCD and write the sum of the numerators for the given problem:1. x^2-3x-4 =2. x^2-6x+8 =The least common denominator is:(x-4)(x+___(3)____)(x-___(4)_____)
The least common denominator is [tex](x^2-3x-4)/(x-4)(x+1) + (x^2-6x+8)/(x-4)(x-2) = 2/(x-4)(x+1)(x-2)[/tex]
Simply put, a rational expression is the product of two polynomials. Or to put it another way, it is a fraction using polynomials as the numerator and denominator.
Reasonable expressions resemble fractions with variable denominators (and often numerators too).
For rational expressions, any value can be entered with the exception of those that set the denominator to 0 (because division by 0 is an undefinable operation).
In other words, all real numbers other than those that make a rational expression's denominator zero are included in the domain of a rational expression.
[tex]x^2-3x-4 = (x-4)(x+1)\\x^2-6x+8 = (x-4)(x-2)[/tex]
The least common denominator is: [tex](x-4)(x+1)(x-2)[/tex]
To add these two rational expressions, we need to rewrite each of them with the LCD as the denominator:
[tex](x^2-3x-4)/(x-4)(x+1) = [(x-4)(x+1)]/(x-4)(x+1)(x-2) = 1/(x-2)\\(x^2-6x+8)/(x-4)(x-2) = [(x-4)(x-2)]/(x-4)(x+1)(x-2) = 1/(x+1)[/tex]
So the sum of the numerators is 1 + 1 = 2.
Therefore,[tex](x^2-3x-4)/(x-4)(x+1) + (x^2-6x+8)/(x-4)(x-2) = 2/(x-4)(x+1)(x-2)[/tex]
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solving multi step equations with variables on both sides worksheets pdf
The solution to the equation −3 + 5a = 4a − 10 is a = -7.
First, we will start by subtracting 5a from both sides of the equation. This is the inverse operation of adding 5a to both sides. By subtracting 5a, the left side of the equation becomes -3 and the right side of the equation becomes -10.
=>−3 + 5a -5a = 4a - 5a − 10
=> -3 = -a - 10
So, we will add 3 to both sides of the equation. This will make the left side of the equation 0, and the right side of the equation -7.
=> -a = 7
Now that the equation reads a = -7, we can use the inverse operation of multiplication, which is division, to get the variable a on one side of the equation and the numbers on the other side.
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Complete Question:
Equations w/ variable on both sides Solve each equation.
1) −3 + 5a = 4a − 10
SLOVE ASAP 27 POINTS
Answer:
9.5 in
Step-by-step explanation:
in order to calculate the area of the triangle, you are required to times the base with height and divide it by 2.
For this instance, 6.8 in X (unknown base) / 2 = 32.30
So what you need to do is times the 32.3 by 2 to get 64.6
Then divide the 64.6 by 6.8 to get the base
WHICH GETS YOU 9.5
hope this helps
What is the conversion of 1 oz to g ?
The conversion factor for converting ounces ( oz) to grams ( g) is 28.3495. Thus, the conversion of one ounce to grams is equals to the 28.3495 g.
In order to convert from one unit to the other, we multiply by the conversion factor. One ounce is approximately equal to 28.3495 grams. Ounce is one of the imperial units of mass, while gram is one of the metric units of mass. Thus to convert from ounces to grams, it is required to multiply the ounce-value by 28.3495. Conversly, if we want to convert from grams to ounces, we need to divide the gram-value by 28.3495. For example, if we want to convert x ounces to grams, we would follow the following steps:
Write down the value in ounces, which is x in this case.Multiply ounces value by 28.3495 to get the value in grams.This will give us a final result of approximately 28.3495x grams.Now, we have to convert 1 ounces to grams. That is x = 1 ounces then final result of conversion is
28.3495×1 = 28.3495 grams. Hence, required value is 28.3495 grams.
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I need help with all 3 of them please and thank you... I have to get it done right now
A scatter plot of the data is shown below.
The best-fitting line for the data is y = -10t + 165.8.
The predicted number of adult softball teams in 2010 is 56 thousands adult softball teams.
How to find an equation of the line of best fit for the data?In order to determine a linear equation for the line of best fit (trend line) that models the data points contained in the table, we would have to use a graphing calculator (scatter plot).
In this scenario, the number of years would be plotted on the x-axis of the scatter plot while the number of teams (thousands) would be plotted on the y-axis of the scatter plot.
On the Excel worksheet, you should right click on any data point on the scatter plot, select format trend line, and then tick the box to display an equation for the line of best fit (trend line) on the scatter plot.
From the scatter plot (see attachment) which models the relationship between the number of years and teams (thousands), a linear equation for the line of best fit is given by:
y = -10t + 165.8
Next, we would determine the predicted number of adult softball teams in 2010:
Years, t = 2010 - 1999 = 11 years.
y = -10(11) + 165.8
y = -110 + 165.8
y = 55.8 ≈ 56 thousands adult softball teams.
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The grand staircase has 13 steps. The
priest wants to know if he can climb this a
different way each day for a year using the
same rules as the priestess.
Is it possible?
How many ways are there of ascending the
grand staircase?
Explain why your answer is correct.
18) The area of rectangle BCDE is 70 square inches. If the length of AE is four inches and the length of ED is 14
inches, what is the area of trapezoid ABCD in square inches?
C
a.) 75
b.) 80
OC.) 85
d.) 90
The area of the trapezoid ABCD in square inches would be = 80in² . That is option B.
How to calculate the area of the given trapezium?The formula that can be used to calculate the area of the trapezium = ½ (a+b) ×h
Where a = line ED = 14
b = line AD = 14+4 = 18
height = area of rectangle / width
= 70/14 = 5in
Therefore the area of trapezium ;
= 1/2 ( 14+18)× 5
= 160/2
= 80in²
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can someone help me with the first one please!!!! ASAP
The perimeter of the trapezoid is 100
How to solve for the perimeterWe would have to solve for the perimeter of the trapezoid.
The perimeter p = sum of the four sides = a + b + c+ d
from the question we have
2 (2x + 8) = 7x - 2
4x + 16 = 7x - 2
- 3x = -16 - 2
x = 6
EF = 2x + 8
= 2(6) + 8
= 12 + 8
= 20
AB = 7x - 2
= 42 - 2
= 40
AE = 1/2AC = 1/2AB = 20
BF = 1/2 CB = 1/2 AB = 20
The perimeter would be
20 + 20 + 20 + 40
= 100
The perimeter = 100
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how can you use proportional and nonproportional linear relationships to solve problems
In the figure below, DG is parallel to EF and ZFDG =
D
OD. 75°
G
Note: picture not drawn to scale
If m/FDG = 66° and m/EDG = 100°, what is m/FED?
OA. 100°
OB. 90°
OC. 80°
Answer:
m∠FED = 80°
Step-by-step explanation:
We have m∠FDG = m∠DFE = 66°m∠EDG = 100°Since ∠EDG is formed from the two angles ∠FDG and ∠FDEABCD is a kite, So AC - DB and DE=EB Calculate the length of \overline{AC} AC to the nearest tenth of a centimeter.
Answer:
AC=9CM
Step-by-step explanation:
Since ABCD is a kite, we know that the two diagonals, AC and BD, intersect at right angles and that the two pairs of adjacent sides are congruent. Therefore, we have:
AC = BD and AB = BC = CD = DA
We also know that DE = EB, which means that triangle ADE is congruent to triangle BEC (by the side-side-side congruence rule), so we have:
AD = BC and AE = EC
AD=5cm and DC=4cm
Combining these equations, we have:
AC = AD + DC
AC=5cm+4cm=9cm
The Boeing 747-8 Intercontinental Jet can carry approximately 63,500 gallons of jet fuel, making it possible for the jet to travel 14,430 kilometers before needing to refuel.
help me...
Use a linear model to predict the amount of jet fuel that is present on the Jet after it has been in flight for 18 hours without stopping to refuel. In two or more complete sentences, explain your answer.
The maximum distance as function of the quantity of gallons of gasoline the required expression is: x = 0.2272 . n
What is distance?Distances between two things or places can sometimes be measured qualitatively and sometimes quantitatively. A physical length or an estimate based on other criteria might be referred to as distance in physics or everyday language. The entire movement of an item, independent of direction, is called distance. No matter where an item starts or ends, distance may be described as the amount of ground it has covered.
The maximum distance as function of the quantity of gallons of gasoline is estimated by the following linear model:
x = (14,430 km / 63500 gallons) . n
Finally, the required expression is:
x = 0.2272 . n
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The point of intersection of two sides of a polygon is called a
A. diagonal
B. vertex
C. altitude
Answer:
Step-by-step explanation:
B vertex