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, 
= 3
D. 
= 0, 
= 0, 
= 6
Answer: B
Mathematics
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A. 2
B. 2
C. 8
D. 8
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Write the fraction in simplest form using the method of your choice.
A. 
B. 
C. 
D. 
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Write a quadratic equation in standard form with the given solution set.{-6, 2}
A. x2 - 4x - 12 = 0 B. x2 - 12x - 4 = 0 C. x2 + 12x - 4 = 0 D. x2 + 4x - 12 = 0
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Evaluate the expression for x = -2, y = 3, z = -4.15 - z2
A. 31 B. 120 C. 23 D. -1
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