3 years ago

The is the mean score ? A.25.5 B.26 C.

1 answer:

5 0

So to find the mean you add up all the numbers (or the exam scores) which will get you 212 then you take the number and divide it by the total numbers in the set (how many numbers did you add up?)

212 divided by 8 is 26.5 which would be C. I hope this helps!

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What is the correlation coefficient between the variables? Round to three decimal places. Enter your answer in the box. r≈ Age/Q

mafiozo [28]

The correct answer is 0.739 You are rounding to 3 decimal places not 4 :D

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3 years ago

A circle has an area of approximately 615 square millimeters. What is the diameter of the circle

noname [10]

Answer:

When using the given information, the diameter of the circle is going to be 28 mL.

Step-by-step explanation:

First, we need to know the formula for finding the area of a circle.

$Area=r^2\pi$

Now, we need to rearrange the formula so we can find the radius.

$Radius=\sqrt{\frac{A}{\pi} }$

Next, we plug in the given area into the equation.

$Radius=\sqrt{\frac{615}{\pi}}$

$Radius=\sqrt{196}$

$Radius=14$

Now that we have the radius, we can find the diameter. The radius is half the length of the diameter. So, in order to find the diameter, we have to multiply the radius by 2.

$14 * 2=28$

So, the diameter of the circle is 28 mL

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3 years ago

Alonzo needs 5/6 of a yard of fabric to cover a chair. He plans to cover 8 chairs. What is the least amount of fabric he will ne

stepan [7]

You have to do 5/6 of 8
first 8÷6=1.3 (or remainder 3)
1.3×5=6.5
So that means Alonzo will need 6.5m at least amount of fabric.
Hope this helped! :)

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3 years ago

Which of the following equations is equivalent to 3x + 4y =15

slavikrds [6]

Answer:

x= −4 /3 y+5

Step-by-step explanation:

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3 years ago

3 decagrams = centgrams

notsponge [240]

Answer:

3,000

Step-by-step explanation:

Just multiply every decagram by 1,000

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