State the dimension of the matrix.
A. 5 × 3
B. -5, 4, 7, 7, -5, 5, -7
C. 15
D. 3 × 5
Answer: D
Mathematics
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Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region bounded by y = 3
, y = 3, and x = 0 about the line y = 3
A. 
?
B. 3?
C. 
?
D. 
?
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Write the rational expression as an equivalent rational expression with the desired denominator.
= 
A. 
B. 
C. 
D. 
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The following figure is composed of one large and three small semicircles. Find the shaded area enclosed by the four semicircles. Give the exact answer.
What will be an ideal response?
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Given matrices A and B, find the indicated matrix if possible.A = 
, B = 
Find AB.
A. AB is not defined.
B. 
C. 
D. 
Mathematics