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Mila [183]
3 years ago
5

Solve the proportion 2/z-5=z/0.5zpower2+7 A.1/5 B.6 C.-7/5 D.-14/5

Mathematics
1 answer:
stiv31 [10]3 years ago
5 0
2 / (z-5) = z / (0.5z^2 + 7)
cross multiply
z(z - 5) = 2(0.5z^2 + 7) =
z^2 - 5z = z^2 + 14 = 
z^2 - z^2 - 5z = 14
-5z = 14
z = -14/5
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Step-by-step explanation:

Comment

If you were trying to get the area of a whole circle, you would use

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The new formula is

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Givens

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Solution

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Area = (5 / 18) * pi * 3^2              Expand

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Read 2 more answers
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