Solve the problem.A spotlight has a parabolic cross section that is 6 ft wide at the opening and 2.5 ft deep at the vertex. How far from the vertex is the focus? Round answer to two decimal places.
A. 0.21 ft
B. 0.52 ft
C. 0.90 ft
D. 0.26 ft
Answer: C
Mathematics
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.
A. 
?
B. 
?
C. 
?
D. 
?
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Evaluate the integral using the given substitution.
, u = 9 - s4
A. -4s3
+ C
B. 
C. -4
+ C
D. 
+ C
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Solve the formula for the specified variable.A = 
bh for h
A. h = 
B. h = 
C. h = 
D. h = 
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Factor:
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