Divide using long division.(x2 + 2x - 35) ÷ (x + 7)
A. x + 5
B. x2 - 5
C. x - 5
D. x2 + 3x - 28
Answer: C
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Multiply. Simplify the answer completely.
? 
? 
A. 
B. 
C. 
D. 
Solve the problem.A domed ceiling is a parabolic surface. For the best lighting on the floor, a light source is to be placed at the focus of the surface. If 5 m down from the top of the dome the ceiling is 4 m wide, find the best location for the light source.
A. 0.6 m down from the top B. 0.8 m down from the top C. 0.4 m down from the top D. 0.2 m down from the top
In electrical circuits, the impedance Z (or opposition to the flow of electricity), voltage V, and current I can all be represented by complex numbers. They are related by the equation Z = 
. Use this equation to find the value of the missing variable.V = 76 - 32i, I = 8 + 4i
A. Z = 
- 17i
B. Z = 6 - 7i
C. Z = 6 + 7i
D. Z = 
+ 17i
Solve the problem.The perimeter of a rectangle is 16 cm. One side is 4 cm longer than the other side. Find the lengths of the sides.
A. 4 cm, 8 cm B. 2 cm, 4 cm C. 2 cm, 6 cm D. 3 cm, 7 cm