Solve the problem.According to a recent survey, in 2000, 61% of households had one or more pets. Throughout the the next decade, this decreased by approximately 4% per year. Express the percentage of households having pets, P, as a function of the number of years after 2000, x.
A. P(x) = -0.04x + 61
B. P(x) = 0.61x - 0.04
C. P(x) = 0.04x + 0.61
D. P(x) = -0.04x + 0.61
Answer: D
You might also like to view...
Use cylindrical coordinates to find the volume of the indicated region.the region bounded below by the xy-plane, laterally by the cylinder 
and above by the plane 
A. 7? B. 196? C. 49? D. 28?
Determine what m and b represent.The cost, in dollars, of a one-day car rental is given by 
where x is the number of miles driven.
A. $40 is the cost per day to rent the car and $15 is the extra cost for unlimited miles. B. $0.15 is the cost per day to rent the car and $40 is the cost per mile. C. $15 is the cost per day to rent the car and $0.40 is the cost per mile. D. $40 is the cost per day to rent the car and $0.15 is the cost per mile.
Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 3; local maximum at x = -3 ; concave up on (0, -3) and (3, ?); concave down on (-3, 3) B. Local maximum at x = 3; local minimum at x = -3 ; concave up on (0, -3) and (3, ?); concave down on (-3, 3) C. Local minimum at x = 3; local maximum at x = -3 ; concave up on (0, ?); concave down on (-?, 0) D. Local minimum at x = 3; local maximum at x = -3 ; concave down on (0, ?); concave up on (-?, 0)
Solve the system.
A. (5, 3, 4) B. (5, 4, 3) C. (3, 5, 4) D. ?