Factor by grouping.x3 + 8x2 + 5x + 40
A. (x2 + 5)(x - 8)
B. (x2 + 5)(x + 8x)
C. (x3 + 5)(x + 8)
D. (x2 + 5)(x + 8)
Answer: D
Mathematics
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Solve the problem.Find the moment of inertia about the y-axis of the thin infinite region of constant density 
in the first quadrant bounded by the coordinate axes and the curve 
.
A. 
B. 
C. 
D. 
Mathematics
For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 2tk
A. a = 2
T
B. a = 2
N
C. a = T + 2
N
D. a = 
N
Mathematics
Perform the indicated operations.0.0089 × 0.016
A. 0.00000142 B. 0.001424 C. 0.00001424 D. 0.0001424
Mathematics
Solve the problem.Write an equation for the tangent line to the curve 
at the point 
A. 2x + 8y = 32 B. 2x + 8y = 16 C. 8x + 2y = 32 D. 8x + 2y = 16
Mathematics