Solve the problem.The weight W of an object on the Moon varies directly as the weight E on earth. A person who weighs 
on earth weighs 38.6 lb on the Moon. How much would a 187-lb person weigh on the Moon?
A. 935 lb
B. 37.4 lb
C. .2 lb
D. 418.6 lb
Answer: B
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Find a parametrization for the line segment joining the points.(-2, -5, -4), 
A. x = 2t - 2, y = -5t, z = 
t - 4, 0 ? t ? 1
B. x = -2t, y = -5t, z = - 
t + 7, 0 ? t ? 1
C. x = 2t - 2, y = -5, z = 
t - 4, 0 ? t ? 1
D. x = -2t, y = -5, z = - 
t + 7, 0 ? t ? 1
Plot the ordered pair in the coordinate plane. In which quadrant or on which axis does the point lie?(4, 0)
A. Quadrant III
B. x-axis
C. x-axis
D. y-axis
Collect like terms and then arrange in descending order.2x4 + 13x8 - 13x4 + 15x8 - 8x8
A. Can't be simplified B. 20x8 - 11x4 C. 9x8 D. 9x12
Solve the system using the inverse matrix method.
A. x = -5, y = -2, z = -2; (-5, -2, -2) B. x = 2, y = 5, z = 2; (2, 5, 2) C. x = 5, y = 2, z = -2; (5, 2, -2) D. x = 5, y = -2, z = 2; (5, -2, 2)