Decide whether or not matrix A and matrix B are inverses.A = 
and B = 
A. Yes
B. No
Answer: A
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Evaluate the integral.
sin t dt
A. 
B. 
C. 
D. 8
Identrify the critical points and find the maximum and minimum value on the given interval I.f(x) = x2 + 2x; I = 
A. Critical points: 0, 2; maximum value 8; minimum value 0
B. Critical points: - 
, - 1, 
; maximum value 
; minimum value - 1
C. Critical points: - 
, - 1, 
; maximum value - 
; minimum value - 1
D. Critical points: - 1; minimum value - 1
?In the following shape, the Surface Area of the top rectangular solid is 1/4 of the bottom surface area. What is the ratio of Volume of the top rectangular solid to the Volume of the bottom rectangular solid?
?
A. ?1/4 B. ?1/2 C. ?1/8 D. ?1/16 E. ?1/32
Assume you have a graph with vertex set V = {A, B, C, D, E} and edge set E = {CD, CB, DA, DB, EA, AA}.The degree of vertex A is
A. 3. B. 2. C. 1. D. 4. E. none of these