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ohaa [14]
3 years ago
5

The distance around the middle of a sphere (the circumference) equals 37.699 in. what is the surface area of the sphere?

Mathematics
1 answer:
podryga [215]3 years ago
5 0

To solve this problem you must apply the proccedure shown below:

1. Clear the radius from the formula for the circumference of a circle and substitute values, as following:

C=2\pi r\\ r=C/2\pi \\ r=37.699in/2\pi \\ r=5.99in

2. Substitute the radius calculated into the formula for calculate the surface area of the sphere:

SA=4\pi r^{2} \\ SA=4\pi(5.99in^{2})\\ SA=450.88in^{2}

The answer is: 450.88in^{2}

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Which expression uses the associative property to make it easier to evalute?
mixas84 [53]

Answer:

The correct option is (c).

Step-by-step explanation:

The given expression is :

14(\dfrac{3}{2}\times \dfrac{1}{4})

We need to use the associative property to make it easier.

The associative property for multiplication is as follows :

A\times (B\times C)=(A\times B)\times C

We have,

A=14, B=\dfrac{3}{2}\ and\ C=\dfrac{1}{4}

14(\dfrac{3}{2}\times \dfrac{1}{4})=(14\times \dfrac{3}{2})\times \dfrac{1}{4}

Hence, the correct option is (c).

6 0
3 years ago
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Katyanochek1 [597]

Answer:

31.25×

Step-by-step explanation:

suppose that the value of x was 3 . that would mean that they bought 3 calculators .

if one calculator is $31.25 then 3 would be $31.25× 3

the same rule would apply for x

7 0
3 years ago
100 POINTS IF U GET THIS RIGHT!
Sloan [31]

Answer:

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Step-by-step explanation:

<u>Use the area equation:</u>

  • A = 1/2bh

<u>Substitute values:</u>

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4 0
3 years ago
Each day at lunchtime, at least 53 people buy food from a food truck.
Nataly_w [17]

Answer:

p ≥ 53

Step-by-step explanation:

6 0
3 years ago
So i know g(x)=3k-2x² and g(-3)=-6<br> how do i know what g(x) ad k are?
schepotkina [342]

Answer:

find k by putting -3 where there is x than -6 on g(x)

Step-by-step explanation:

g(x)=3k-2x²

-6=3k-2(-3)²

-6=3k-18

-6+18=3k

12=3k

12÷3=3k÷3

4=k

8 0
3 years ago
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