Solve the problem.A radio telescope has a parabolic surface. If it is 1 meters deep and 
wide, how far is the focus from the vertex?
A. 3 m
B. 1 m
C. 36 m
D. 9 m
Answer: D
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A function f(x), a point x0, the limit of f(x) as x approaches x0, and a positive number ? is given. Find a number 
such that for all x, 0 < 
< ? ? 
< ?.f(x) = -2x - 7, L = -11, x0 = 2, and ? = 0.01
A. 0.01 B. 0.005 C. -0.005 D. 0.0025
Solve the problem.The radius, r, of a right circular cone can be found using the formula 
where V is the volume and h is the height. If the volume is 392 cubic inches and the height is 7 inches, what is the radius? (Use 3.14 for ?, and round your answer to the nearest tenth of an inch.)
A. 7.7 in. B. 7.3 in. C. 3.7 in. D. 4.2 in.
Complete the square to make the binomial a perfect square trinomial.
?
?
Please enter your answer as a perfect square trinomial.
What will be an ideal response?
Verify that the matrix is invertible and find its inverse.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
D. A-1 does not exist.