Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $30 for the repairman to come to the house, to which a charge of $23 per hour is added. Find an equation that can be used to determine the labor cost, C(x), of a repair that takes x hours.
A. C(x) = ( 30 + 23) x
B. C(x) = 30 + 23x
C. C(x) = 30 - 23x
D. C(x) = 23 + 30x
Answer: B
Mathematics
You might also like to view...
Solve.Rewrite in radical notation and simplify: (216x6)4/3
A. 
; 46,656x8
B. 
; 1296x8
C. 
; 279,936x24
D. 
; 7776x8
Mathematics
Calculate the quotient.-8 ÷ 0
A. 0 B. 1 C. -1 D. cannot be done
Mathematics
For the given functions f and g, find the requested composite function.f(x) = 
, g(x) = 9x + 10;
Find (g ? f)(x).
A. x + 20
B. x
C. x - 
D. 9x + 80
Mathematics
Solve the problem.If sin ? = 0.3, find the value of sin ? + sin (? + 2?) + sin (? + 4?).
A. 0.3 B. 2.9 C. 0.9 + 6? D. 0.9
Mathematics