Solve the problem.Under certain conditions the wind speed S, in miles per hour, of a tornado at a distance d from its center can be approximated by the function 
where a is an atmospheric constant, and V is the approximate volume of the tornado, in cubic feet. Assume that a is 0.78. Find 
.
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.The motion of an imaginary ball bouncing along a flat, level surface, such that each bounce is identical in peak height and horizontal velocity to the bounce before it, is modeled by the following functional relationship between the instantaneous height, f(x), of the ball above the flat surface and the horizontal position, x, of the ball along the surface:
Find ao, two nonzero cosine terms (if they exist), and two nonzero sine terms (if they exist) of the Fourier series for this description of motion.
A. f(x) = 
- 4
B. f(x) = 
- 
C. f(x) = 
- 
D. f(x) = 
+ 
Which method should be used to solve the system? Explain your answer, including a description of the first step.x2 - y2 = 4x + 8y = 9
What will be an ideal response?
Evaluate.-9[6 + (-9)]
A. -27 B. -63 C. 27 D. -135
Use the union rule to answer the question.If n(A) = 24, n(B) = 69, and n(A ? B) = 81; what is n(A ? B)?
A. 6 B. 14 C. 12 D. 36