Simplify the expression.
2
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: cone x2 + y2 - z2 = 0 between z = 1 and z = 3Density: constant
A. 
B. 
C. 
D. 
Mathematics
Multiply.0.04 × 0.3
A. 0.12 B. 0.0012 C. 1.2 D. 0.012
Mathematics
Solve the equation by completing the square.x2 = 7 - 8x
A. -1 ± 
B. -4 ± 
C. -4 ± 2
D. 4 + 
Mathematics
Solve the equation.
= -4
A. 6 B. 8 C. -6 D. -8
Mathematics