Find the product.(a + 4b)2
A. a2 + 16b2
B. 2a + 8b
C. a2 + 16ab + 16b2
D. a2 + 8ab + 16b2
Answer: D
Mathematics
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Factor out the GCF from the polynomial.13x4 - 8x6
A. x4(1 - 8x2)
B. x4(13 - 8x2)
C. 13(x4 - 104)
D. 13x4
Mathematics
Calculate the arc length of the indicated portion of the curve r(t).Following the curve r(t) = 5ti + (12 cos t)j + (12 sin t)k in the direction of increasing of arc length, find the point that lies 104? units away from the point where 
A. (40?, 0, 0) B. (40?, 12, 0) C. (40?, 0, 12) D. (40, 12, 0)
Mathematics
Solve the problem. Round to the nearest hundredth if necessary.Compute 4
% of 80 inches.
A. 336 inches B. 33.6 inches C. 3.36 inches D. 0.03 inches
Mathematics
Solve the matrix equation for X.A = 
, B =
, AX = B
A. 
B. 
C. 
D. 
Mathematics