Solve the problem.Find the center of mass of the hemisphere of constant density bounded 
and the 
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 
Answer: B
Mathematics
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Solve the problem.Let angle POQ be designated ?. Angles PQR and VRQ are right angles. If ? = 45°, find the exact length of VR. 
A. 
B. 1
C. 
D. 0
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Simplify.
? 
A. 5
B. 
C. 
D. 
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Verify that each equation is an identity.sec(2?)= 
What will be an ideal response?
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Match the graph to one of the polar equations.
A. r = 6 sin ? B. r = 3 + cos ? C. r = 6 cos ? D. r = 3 + sin ?
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