Solve.A radio telescope has a parabolic surface. If it is 1 m deep and 
wide, how far is the focus from the vertex?A = 12 mB = 1 m
A. 3 m
B. 9 m
C. 36 m
D. 1 m
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Verify the identity.cot2 
= 
What will be an ideal response?
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Eliminate the parameter.x = t - 3, y = t2 + 5
A. y = x2 - 6x - 14 B. y = x2 + 6x + 14 C. y = x2 + 14 D. y = x2 - 14
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Divide. Write your answer in lowest terms.50 ÷ 1
A. 39
B. 40
C. 41
D. 38
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