Solve the problem.To remodel a bathroom, a contractor charges $25 per hour plus material costs, which amount to $3825. Therefore, the total cost to remodel the bathroom is given by  where x is the number of hours the contractor works. Find a formula for  What does  compute?

A. f -1(x) =  - 3825; This computes the total cost if the contractor works x hours.
B. f -1(x) =  - 153; This computes the total cost if the contractor works x hours.
C. f -1(x) =  - 153; This computes the number of hours worked if the total cost is x dollars.
D. f -1(x) =  - 3825; This computes the number of hours worked if the total cost is x dollars.


Answer: C

Mathematics

You might also like to view...

Evaluate the work done between point 1 and point 2 for the conservative field F.F = 10xi + 10yj + 10zk; P1(2, 3, 1) , P2(4, 5, 3)

A. W = 180 B. W = 0 C. W = - 180 D. W = 320

Mathematics

Approximate the coordinates of each turning point by graphing f(x) in the standard viewing rectangle. Round to the nearest hundredth, if necessary.f(x) = -x3 + x2 + 6x - 3

A. (-2, -1) and (1, 3.5) B. (-1, -6.5) and (2, 7) C. (-2, -1) and (-1, -6.5) D. (-1, -6.5) and (1, 3.5)

Mathematics

Find the sum of the finite geometric series.The first 6 terms of the series whose terms are an = 3n

A. S6 = 59.953125 B. S6 = 5.90625 C. S6 = 2.953125 D. S6 = 1.96875

Mathematics

Graph the polynomial function. Factor first if the expression is not in factored form.f(x) = (2x + 1)(x - 1)(x + 2)

A.

B.

C.

D.

Mathematics