Calculus Hw Multiple Choice ... please help If s is a distance given by s(t) = 4

Question

Calculus Hw Multiple Choice ... please help

If s is a distance given by s(t) = 4t^3 + t + 4, find the velocity.

The dollar pro?t from the expenditure of x thousand dollars on advertising is given by P(x) = 780 + 35x - 2x^2. Find the marginal pro?t when the expenditure is x = 14.

The function V = s^ 3 describes the volume of a cube, V, in cubic inches, whose length, width, and height each measure s inches. Find the (instantaneous) rate of change of the volume with respect to s when s = 3 inches.

Suppose that the dollar cost of producing x radios is c(x) = 400 + 20x - 0.2x^2. Find the marginal cost when 40 radios are produced.

The dollar revenue generated by the sale of x bicycles is given by R(x) = 80.00x

Explanation / Answer

ANSWER CHOICES for the respective questions above are:

2)

3)

3)

2)

4)

1)

1)

4)

2)

4)

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