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Phantasy [73]
3 years ago
14

What is the surface area of a ball with a diameter of 8 inches?

Mathematics
1 answer:
asambeis [7]3 years ago
3 0
SA=4pir^2
d/2=r
8/2=4
r=4
SA=4pi4^2
SA=4pi16
SA=64pi in^2
if want, aprox pi=3.14
SA=200.96 in^2
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Thanks! Help is appreciated
Viefleur [7K]

Answer:

D

Step-by-step explanation:

sorry if i am incorrect but that is my best guess

3 0
3 years ago
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Aleks [24]

Answer:

3:11

Step-by-step explanation:

3x=11y

<u>Rearrange to the format of the ratio.</u>

11y = 3x

<u>Let's find </u><u>y/x</u><u>. </u><u>y/x</u><u> is </u><u>y:x.</u>

11y = 3x

<u>Divide both sides by </u><u>11</u><u>.</u>

11y/11 = 3x/11

y = 3x/11

<u>NOW LET'S DIVIDE BOTH SIDES BY </u><u>x</u><u> TO GET </u><u>x</u><u> AS THE DENOMINATOR OF </u><u>y</u><u>.</u>

y = 3x/11

y/x = (3x/11)/x

y/x = (3x/11) * 1/x

y/x = 3/11

Therefore, y:x = 3:11

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7 0
3 years ago
Find the value of xfind the value of 6 x by 3 ​
Mumz [18]

Answer:

<h2><em><u>2</u></em><em><u>x</u></em></h2>

Step-by-step explanation:

<h2><em><u>6</u></em><em><u>x/</u></em><em><u>3</u></em><em><u>=</u></em><em><u>2</u></em><em><u>x</u></em></h2>

<em><u>thank</u></em><em><u> you</u></em>

<em><u>that's</u></em><em><u> all</u></em>

8 0
2 years ago
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2 years ago
The sum of 11 and the product of 2 and a number r
andrew-mc [135]
Algebraically that would be expressed as 2r + 11

The product of 2 and r is 2r.

The sum of 2r and 11 is 2r + 11
5 0
3 years ago
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