Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by x = 
, 0 ? y ? 
, x = 0
A. 4?
B. 8?
C. 
D. 
Answer: D
Mathematics
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Simplify using the zero-power rule.-100
A. 0 B. 10 C. 1 D. -1
Mathematics
Solve the problem.Mara can type 48 words per minute. How many words would she type in 
hour (30 minutes)?
A. 96 words B. 24 words C. 1440 words D. 720 words
Mathematics
Write the conjugate 
of the complex number z. Then find z
.z = -9 - i
A. 
= -9 + i, z
= 81
B. 
= -9 + i, z
= -80
C. 
= -9 + i, z
= 82
D. 
= -9 + i, z
= -9
Mathematics
Evaluate the determinant:
Mathematics