Find f'(x) for the function, then find f'(x) for the given x.f(x) = 5x + 9, f'(2)
A. f'(x) = 5x; f'(2) = 5
B. f'(x) = 5x; f'(2) = 10
C. f'(x) = 5; f'(2) = 10
D. f'(x) = 5; f'(2) = 5
Answer: D
You might also like to view...
Solve the problem.A power plant is located on a river that is 650 feet wide. To lay a new cable from the plant to a location in a city 1 mile downstream on the opposite side costs $225 per foot across the river and $150 per foot along the land. Suppose that the cable goes from the plant to a point Q on the opposite side that is x feet from the point P directly opposite the plant. Write a function C(x) that gives the cost of laying the cable in terms of the 
A. C(x) = 225
+ 150(5280 - x)
B. C(x) = 225(650 - x) + 150(1 - x)
C. C(x) = 225
+ 150(1 - x)
D. C(x) = 150
+ 225(5280 - x)
Solve the problem.The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 5.0 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will find a parking spot in the library parking lot in less than 4.5 minutes.
A. 0.3551 B. 0.2674 C. 0.1915 D. 0.3085
Express the set using the roster notation. The set of natural numbers less than or equal to 11.
A. {1, 2, 3, . . . , 10} B. {1, 2, 3, . . . , 11} C. {0, 1, 2, 3, . . . , 10} D. {0, 1, 2, 3, . . . , 11}
Solve the equation.- 
(x - 8) - 
(x - 5) = x + 5
A. - 
B. - 
C. - 
D. - 