Solve using the multiplication principle.21 = -3k
A. 24
B. 1
C. -7
D. -24
Answer: C
Mathematics
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Find the volume of the solid generated by revolving the region about the y-axis.The region in the first quadrant bounded on the left by y = 
, on the right by the line 
, and above by the line y = 2
A. 12? B. 18? C. 36? D. 54?
Mathematics
Solve the problem.A bathroom scale is compressed 
in. when a 190 lb person stands on it. Assuming that the scale behaves like a spring that obeys Hooke's law, how much does someone who compresses the scale 
in. weigh?
A. 47.5 lb B. 95 lb C. 142.5 lb D. 380 lb
Mathematics
For the given arithmetic series, what is Sn?a1 = 3, d = 9, and n = 13
A. 2964 B. 741 C. 1482 D. 754
Mathematics
Graph the function.y = sec (2x - 
) + 2 
A. 
B. 
C. 
D. 
Mathematics