Solve the problem.To remodel a bathroom, a contractor charges $25 per hour plus material costs, which amount to $3850. 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) = 
- 3850; This computes the number of hours worked if the total cost is x dollars.
B. f -1(x) = 
- 3850; This computes the total cost if the contractor works x hours.
C. f -1(x) = - 154; This computes the total cost if the contractor works x hours.
D. f -1(x) = 
- 154; This computes the number of hours worked if the total cost is x dollars.
Answer: D
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Write the equation in standard form. Then identify the vertex of the parabola.y = x2 - 8x + 5
A. y = (x - 4)2+ 5; (-4, 5) B. y = (x - 4)2 - 11; (4, -11) C. y = (x + 4)2 - 11; (-4, -11) D. y = (x - 4)2 + 5; (4, 5)
Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. x = 60.17 B. x = 14.25 C. x = 47.5 D. x = 90.25
Determine the slope and y-intercept of the function.F(x) = -5
A. m = -5; b = 0 B. m = -5; b = -5 C. m = 0; b = -5 D. m = 0; b = 0
Find the area of the region between 
and 
for x in
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?
A. 
B. 
C. 1
D. 
E. 