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o-na [289]
3 years ago
8

(I’ll give brainliest)Find the area of the circle below leave your answer in terms of Pi

Mathematics
1 answer:
hodyreva [135]3 years ago
7 0

Answer:

I think it's 20 i'm not so sure if you get it wrong than i'm sorry

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Drupady [299]

Answer:

Point A to point F and point I to point H would have the ratio of 2:1.

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2 years ago
Find the volume of a pyramid with a square base, where the area of the base is 7.9 m^2
Fofino [41]
The pyramid formula:
\frac{1}{3}  \times base \times height

The volume in this case would be:

1/3×7.9×4
=79/30×4
=10.5333...
≈10.5 m^3
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3 years ago
Round 639,121 to the nearest ten thousand.
VLD [36.1K]

Answer:

640,121

Step-by-step explanation:

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2 years ago
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(3a) You spend $72 on tapes and CDs. Each tape costs $8 and each CD costs $12.
Makovka662 [10]

Answer:

3a. 8t + 12c = 72

3b. t + c = 7

Step-by-step explanation:

number of tapes is t

number of Cds is c

so 8t + 12c = 72

and t + c = 7

so t = 7 - c

replace t = 7 - c in to the first equation

8(7 - c) + 12c = 72

56 - 8c + 12c = 72

4c = 72 - 56 = 16

c = 4

if c = 4, then t = 7 - c = 7 - 4 = 3

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2 years ago
4E-38 in scientific notation
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4 \times  {10}^{ - 38}

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