Use the indicated property to provide a new expression equal to the given expression. Simplify, if possible.15 + (-15); inverse
A. 0
B. 30
C. 225
D. -30
Answer: A
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Find all cube roots of the complex number. Leave answers in trigonometric form.3 + 3i
A. 
cis 20°, 
cis 140°, 
cis 260°
B. 
cis 20°, 
cis 140°, 
cis 260°
C. 
cis 30°, 
cis 150°, 
cis 270°
D. 
cis 20°, 
cis 140°, 
cis 260°
Graph the equation.x2 = -5y
A. 
B. 
C. 
D. 
Solve the problem.A box with an open top is formed by cutting squares out of the corners of a rectangular piece of cardboard and then folding up the sides. If x represents the length of the side of the square cut from each corner, and if the original piece of cardboard is 12 inches by 10 inches, what size square must be cut if the volume of the box is to be 96 cubic inches? 
A. x = 6 in. B. x = 8 in. C. x = 3 in. D. x = 2 in.
Graph the linear inequality in two variables.x - y < -6
A. 
B. 
C. 
D. 