Use the distributive property to multiply. Then, if possible, simplify the resulting expression.4(a + b)
A. 4ab
B. 8ab
C. 4a + 4b
D. 4a + b
Answer: C
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Find the moment of inertia (in g?cm2) and the radius of gyration (in cm) with respect to the origin of the given array of masses located at the given points on the x-axis.3.1 g at (-1.9, 0), 5.3 g at (1.9, 0), 4.2 g at (3.6, 0)
A. I = 19 g? cm2; R = 1.2 cm B. I = 19 g? cm2; R = 1.9 cm C. I = 85 g? cm2; R = 2.6 cm D. I = 99 g? cm2; R = 2.8 cm
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = -8xz3i + 5yj + 2z4k; D: the solid wedge cut from the first quadrant by the plane 
and the elliptic cylinder x2 + 36y2 = 121
A. 
B. 
C. 
D. 
Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
The length of the critical path from B is
A. 13 hours. B. 18 hours. C. 21 hours. D. 5 hours. E. none of these
Factor and simplify the algebraic expression.x2/3 - x1/3
A. x1/3(x2 - 1) B. x1/3(x1/3 - 1) C. x2/3(1 - x 1/3) D. x(x 1/3 - 1)