Solve the problem.A stone is thrown into a pond. A circular ripple is spreading over the pond in such a way that the radius is increasing at the rate of 2.6 feet per second. Find a function, r(t), for the radius in terms of t. Find a function, A(r), for the area of the ripple in terms of r. 
A. (A ? r)(t) = 6.76?2t
B. (A ? r)(t) = 2.6?t2
C. (A ? r)(t) = 5.2?t2
D. (A ? r)(t) = 6.76?t2
Answer: D
Mathematics
You might also like to view...
Solve the system of nonlinear equations.x2 - y2 = 39x - y = 3
A. (-8, 5) B. (8, 5) C. (8, -5) D. (-8, -5)
Mathematics
Find the quotient. Write the answer in standard form.
A. - 
- 
i
B. - 
- 
i
C. 
- 
i
D. 
- 
i
Mathematics
Answer the question.What does the digit 5 mean in the number 951,913?
A. thousands B. ten-thousands C. hundred-thousands D. hundreds
Mathematics
Perform the division, if possible.
A. 12
B. 
C. -12
D. 
E. not possible
Mathematics