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Zepler [3.9K]
3 years ago
7

A beachball has a surface area of about 615.75 square meters. Find the

Mathematics
1 answer:
Genrish500 [490]3 years ago
5 0

Answer: The radius of the ball is 7 meters.

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Surface area of a sphere: 4 π r^2

Replacing with the value given:

615.75 = 4 π r^2

Solving for r (radius):

615.75 /4π= r^2

√(615.75 /4π) =r

r = 6.99 = 7m (rounded)  

The radius of the ball is 7 meters.

Feel free to ask for more if needed or if you did not understand something.  

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Answer:

The expression that is greater is a (b - c)

Step-by-step explanation:

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so for the product <u>a(b - c) </u>we would have a multiplication of a negative number <em>a</em> and another negative number <em>(b - c)</em>. We know that the result of the <u>multiplication of two negative numbers  is a positive number.</u>

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  • a < 0 and c > b, this means <u>by the addition property</u> that c - b > b - b⇒ c - b > 0

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Marie wants to know the most popular car for parents. She plans to survey the people entering the mall from 10:00 a.m. to 11:00
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