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3 years ago

8

a principle estimated that 400 people attended the performance of the school play. after counting the tickets , he found that 42

3 people attended. What was the percent error in the principal's estimate?

1 answer:

WINSTONCH [101]3 years ago

6 0

The percent error of the principle is 5.4%

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Answer:

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Step-by-step explanation:

Given

$h = -4.9(t - 13)(t + 2).$

Required

Determine a reasonable solution for t

To do this, we equate h to 0.

$h = -4.9(t - 13)(t + 2).$ becomes

$0 = -4.9(t - 13)(t + 2).$

Divide through by -4.9

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Reorder the expression

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This gives:

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But time can't be negative, So:

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