Evaluate the expression and write the answer in standard form. 
A. 48
B. 300,000
C. 30
D. 480,000
Answer: B
Mathematics
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Solve the problem.Find the centroid of the region bounded above by the sphere 
and below by the plane 
if the density is constant.
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 12
Mathematics
Graph the curve whose parametric representation is given. x = 2t - 1, y = t2 + 1; -4 ? t ? 4 
A. 
B. 
C. 
D. 
Mathematics
Replace the polar equation with an equivalent Cartesian equation.r2 + 2r2 sin ? cos ? = 144
A. x2 + y2 = 144 B. x2 + 3y2 = 144 C. x + y = ±12 D. x + y = 12
Mathematics
Provide an appropriate response. Choose the graph for the function f(x) = -2x + 3, if its values are f(0) = 3, f(1) = 1, and f (2) = -1.
A. 
B. 
C. 
D. 
Mathematics