Solve the problem.A radio telescope has a parabolic surface. If it is 2 m deep and 16 m wide, how far is the focus from the vertex? 
A. 4 m
B. 8 m
C. 32 m
D. 2 m
Answer: B
Mathematics
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Plot the point in a polar coordinate system.
A. 
B. 
C. 
D. 
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Find the cube root.
A. -8 B. not a real number C. 22.627 D. 11.314
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Use the commutative property of multiplication to write an equivalent algebraic expression.8(x + 2)
A. (x + 2)8 B. (x + 8)2 C. 8(2 + x) D. (2 + x)8
Mathematics
Evaluate.- 
- 
A. - 
B. - 
C. - 
D. 
Mathematics