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Vlad1618 [11]
3 years ago
10

The distance from town a to town b is 5 miles and the distance from town b to town c is 4 miles. which of the following could No

t be the distance, in mile from town a to town c.
A. 1
B. 4
C. 8
D. 9
E. 10
Mathematics
1 answer:
Radda [10]3 years ago
6 0
A. 1 because a to b is 5 miles and b to c is 4 miles so it couldn't be 1 mile
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Given:

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y=x-0.04x^2

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Solution:

We have,

y=x-0.04x^2

Differentiate with respect to x.

y'=1-0.04(2x)

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For critical values, y'=0.

1-0.08x=0

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x=12.5

Differentiate y' with respect to x.

y''=(0)-0.08(1)

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Since double derivative is negative, the function is maximum at  x=12.5.

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y=(12.5)-0.04(12.5)^2

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Therefore, the maximum height of of Anna's golf ball is 6.25 units.

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