Find the matrix product, if possible.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the x-axis
A. 2?
B. 8?
C. 4?
D. 
?
Mathematics
Let (m × n) denote a matrix of size m × n. Find the size of the following product, or state that the product is not defined.(2 × 1)(1 × 2)
A. 2 × 2 B. not defined C. 1 × 1 D. 1 × 2
Mathematics
Multiply and, if possible, simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Find the sum of the first n terms of the following arithmetic sequence.a1 = -7, d = 2; n = 5
A. 3 B. -15 C. -35 D. -10
Mathematics