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garik1379 [7]
3 years ago
5

A circle has a circumference of 7,850 units. What is the radius of the circle

Mathematics
1 answer:
Snezhnost [94]3 years ago
4 0

Answer: Radius = 1,250

Step-by-step explanation: The circumference of a circle equals the 2 x radius x π.

The formula to solve the radius is 2r x 3.14 = 7,850

Divide both sides by 3.14 = 2r = 2,500

Divide both sides by 2 = r = 1,250.

The radius = 1,250

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Answer:

B. There is an association because the value 0.15 is not similar to the value 0.55

Step-by-step explanation:

Based on the above picture, for the nutritionist to determine whether there is an association between where food is prepared and the number of calories the food contains, there must be an association between two categorical variables.

The conditions that satisfy whether there exists an association between conditional relative frequencies are:

1. When there is a bigger difference in the conditional relative frequencies, the stronger the association between the variables.

2. When the conditional relative frequencies are nearly equal for all categories, there may be no association between the variables.

For the given conditional relative frequency, we can see that there exists a significant difference between the columns of the table in the picture because 0.15 is significantly different from 0.55 and 0.85 is significantly different from 0.45

We can conclude that there is an association because the value 0.15 is not similar to the value 0.55

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3 years ago
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Lsabel is making lemonade for a party with 12 guests.She wants to make equal serving that are least 2 cups each.She makes 7 quar
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Answer: Yes, and she will have 4 cups leftover


Step-by-step explanation:

1 Quart = 4 cups

Convert the quarts: 7 * 4 = 28

Find the amount of cups needed in total: 12* 2 = 24

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8 0
3 years ago
About 7% of the population has a particular genetic mutation. 400 people are randomly selected. Find the standard deviation for
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Answer:

5.10 people

Step-by-step explanation:

Calculation to Find the standard deviation for the number of people with the genetic mutation

Using this formula

Standard deviation = √ ( n * p * q)

Where,

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p = .07

q = 100%-7% = 93% or .93

Let plug in the formula

Standard deviation =√400*07*.93

Standard deviation =√26.04

Standard deviation = 5.10 people

Therefore the standard deviation for the number of people with the genetic mutation is 5.10 people.

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Answer:

d= -16

Step-by-step explanation:

To answer this question you'll have to first simplify the equation to

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then combining like terms you get

0.2d-1.2=(0.3d+0.1d)+(5+-3)

0.2d-1.2=0.4d+2

then subtract 0.4d from both sides leaving you with

-0.2d-1.2=2

then add 1.2 to both sides

-0.2d=3.2

after you divide both sides by -0.2

leaving you with the answer

D= -16

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2 years ago
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What is the slope-intercept equation for this
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The y-intercept is the point at which the line crosses the y-axis. Example (b) Graph 6x – 3y = 12. Instead of completing a table of values

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