Solve the problem.On a map of the Fox River, 1 centimeter equals 2 kilometers. If a trail by the river is actually  long, what is the length of the river on the map?

A. 6.8 cm
B. 4.8 cm
C. -2.4 cm
D. 7.6 cm

Answer: B

Mathematics

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Set up an integral for the length of the curve.x = 3 tan y, 0 ? y ? 

A.
B.
C.
D.

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Evaluate the integral. 

A. e-3y + C
B. - y4 e-3y + C
C. - e-3y + C
D. -e-3y + C

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For the polynomial function, find the requested value.f(x) = 5x3 + 6x2 - 16; f(-2)

A. -32 B. -68 C. -44 D. -42

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First, round the mixed numbers to the nearest whole number and estimate the answer. Then find the exact answer and write it in simplest form.16 - 

A. 15
B. 16
C. 15
D. 14

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