Solve the problem.Suppose that the total-cost function for a certain company to produce x units of a product is given by Graph the average cost function A(x) = C(x)/x.

A.

B.

C.

D.


Answer: D

Mathematics

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Find the length of the curve.x = 6 sin3 t, y = 6 cos3 t, 0 ? t ? ?

A. 18 B. 12 C. 36 D. 6

Mathematics

If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.r(t) = (7 ln(4t))i + (6t3)jFind the acceleration vector.

A. a(t) = i + 18tj
B. a(t) = - i + 36tj
C. a(t) = - t-2i + 36tj
D. a(t) = t-2i + 36tj

Mathematics

Find the area.

A. 160 m2 B. 21 m2 C. 42 m2 D. 80 m2

Mathematics

Solve the problem.Numbers is a game where you bet $1.00 on any three-digit number from 000 to 999. If your number comes up, you get $600.00. Find the expected winnings.

A. -$0.50 B. -$1.00 C. -$0.42 D. -$0.40

Mathematics