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LenKa [72]
3 years ago
14

How much more area does a large pizza with a 12 in. diameter have than a small pizza with an 8 in. diameter? Round your answer t

o the nearest square inch
38 in2

63 in2

87 in2

13 in2
Mathematics
2 answers:
uranmaximum [27]3 years ago
8 0
I'm pretty sure its 87 in2 but don't trust me! lol
Harlamova29_29 [7]3 years ago
8 0
A = pi × r^2 = pi × (d/2)^2
So A(large) - A(small) =
\pi {(12 \div 2)}^{2} - \pi {(8 \div 2)}^{2}   \\ = \pi {(6)}^{2} - \pi {(4)}^{2}  = 36\pi - 16\pi \\  = 20\pi \:  {in}^{2}  = 20 \times 3.1415 \:  {in}^{2}   \\  = 62.8 \:  {in}^{2}  = 63 \:  {in}^{2}
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3 years ago
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3 years ago
Mrs. Habib has 46.25 feet of border for a bulletin board for her classroom. the board is 37.5 feet tall and 8.3 feet wide. how m
Luba_88 [7]

Answer:

Mrs. Habib will have 22.25 feet of border left after she puts border around the board.

Step-by-step explanation:

You must find the perimeter of the board and subtract it from the amount of border she has to find how much she will have left after she uses it. The formula for perimeter is P=2(l+w), where l= the length of the board, and w= the width of the board. You will add those together and multiply them by 2 because there are 4 sides to a rectangle. That means this equation will look like:

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Now you can just solve for the perimeter.

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7 0
3 years ago
Can someone help pls 18-3 X 2/5-1^2
d1i1m1o1n [39]

Answer:

3

Step-by-step explanation:

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7 0
3 years ago
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What is the value of this expression when a= - 3 and b=-2?<br> (3a^-2b^6/2a^-1b^5)^2
lisabon 2012 [21]

Answer:

so lets just rewrite it with A=-3 amd B=-2

(-9^4^-9^2^5)^2

which is equal to... 1!

Hope This Helps!!!

7 0
3 years ago
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