Solve the problem.The area A = ?r2 of a circular oil spill changes with the radius. At what rate does the area change with respect to the radius when 
A. 18? ft2/ft
B. 9? ft2/ft
C. 18 ft2/ft
D. 81? ft2/ft
Answer: A
You might also like to view...
Graph the parabola.y = -3x2
A. 
B. 
C. 
D. 
Solve the problem.Jimmy is a partner in an Internet-based coffee supplier.The company offers gourmet coffee beans for $11 per pound and regular coffee beans for $3 per pound. Jimmy is creating a 
product that will sell for $5 per pound.The first thing to go into the mixing bin was 14 pounds of the gourmet beans. How many pounds of the less expensive regular beans should be added?
A. 43 lb B. 41 lb C. 42 lb D. 44 lb
Calculate the derivative of the function. Then find the value of the derivative as specified.f(x) = x2 + 7x - 2; f '(0)
A. f '(x) = 2x - 2; f '(0) = - 2 B. f '(x) = 2x; f '(0) = 0 C. f '(x) = 2x + 7; f '(0) = 7 D. f '(x) = x + 7; f '(0) = 7
Find the perimeter of the figure.
3
A. 6
B. 12
C. 12
D. 6