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geniusboy [140]

3 years ago

8

The surface area of an oil spill gets 105% larger every day, represented by the function s(x) = (1.05)x − 1. On the first day, i

t covered an area of 31 square meters. Which function would be used to find the area of the oil spill on the 15th day?

1 answer:

Keith_Richards [23]3 years ago

7 0

Answer:

f(d) = 31 × 1.05^(t-1)

31(1.05^(15-1))

61.3778795826

61.4 m²

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Total Cost, $C(x,z) =0.17x^2+0.13x^2+0.10(4xz)$

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$C(x) =0.17x^2+0.13x^2+0.10(4x)(\frac{12}{x^2})\\C(x)=0.3x^2+\frac{4.8}{x} \\C(x)=\dfrac{0.3x^3+4.8}{x}$

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Recall: $z=\frac{12}{x^2}=\frac{12}{2^2}=3\\$

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(b)Width =2 feet

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