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weqwewe [10]
3 years ago
8

Item 7

Mathematics
2 answers:
Dima020 [189]3 years ago
7 0
490.1

2(3.14)6x7+2x3.14x6^2
shusha [124]3 years ago
6 0
2(3.14)6*7+2*3.14x 6^2=490.1
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mart [117]

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8 0
3 years ago
Read 2 more answers
Geometric mean between 9 and 36
nlexa [21]
I've actually just learned this. We would set up the proportion as X/9=36/X so after we cross multiply we get x^2=324. Then we find the square root of both sides to simplify. And using my calculator the square root of x^2 is just x. And the square root of 324 is 18. So the final answer is x=18 or the geometric mean is 18.
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