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If f (x) = 3x^2 + 15x + 5, then the approximate value of f (3.02) is A. 47.66 B. 57.66

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asked Jan 22, 2018 in Mathematics by sforrest072 (157,439 points) ● 61 ● 410 ● 943

If f (x) = 3x2 + 15x + 5, then the approximate value of f (3.02) is

A. 47.66      B. 57.66      C. 67.66    D. 77.66

1 Answer

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answered Jan 22, 2018 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Jan 22, 2018 by sforrest072
 
Best answer

Let x = 3 and ∆ x = 0.02. Then, we have:

Hence, the approximate value of f(3.02) is 77.66.
The correct answer is D.

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