Add or subtract.(r3 - 5rs + 7s2) - (3r3 + rs - 4s2)
A. -3r3 - 5rs + 3s2
B. -2r3 - 4rs + 11s2
C. -2r3 - 6rs + 3s2
D. -2r3 - 6rs + 11s2
Answer: D
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A. 1320 minutes B. 660 minutes C. 1100 minutes D. 1980 minutes
Solve the equation analytically.
x - 
x = 3
A. {90} B. {-45} C. {-90} D. {45}
Solve the problem.The figure shows a rectangle with two vertices on a semicircle of radius 5 and two vertices on the x-axis. Let P(x, y) be the vertex that lies in the first quadrant. Express the perimeter of the rectangle, P, as a function of x.
A. P(x) = 2x + 2
B. P(x) = 2x
C. P(x) = 4x + 2
D. P(x) = 2x + 
Find the reciprocal.
A. 
B. 13
C. 
D. 