Find the derivative.f(x) = 
A. 
+ 
B. 
- 
C. 
- 
D. x3/2 + 9
Answer: C
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For which value of x does 
reach a minimum? Restrict your attention to the horizontal span of 0 to 5. Round your answer to two decimal places.
?
A. 13 B. 11.44 C. 0.63 D. 0
Verify the identity.
- 
= - cos ? cot ?
What will be an ideal response?
Find the domain of the rational expression. 
A. {x|x is a real number and x ? 4 and x ? 7} B. {x|x is a real number and x ? 4 and x ? -4 and x ? -7} C. {x|x is a real number and x ? 4 and x ? -4 and x ? 7} D. {x|x is a real number and x ? 4 and x ? -7}
Determine where the function is increasing and where it is decreasing.f(x) = -x2 - 10x
A. increasing on (-5, ?) decreasing on (-?, -5) B. increasing on (-?, 5) decreasing on (5, ?) C. increasing on (5, ?) decreasing on (-?, 5) D. increasing on (-?, -5) decreasing on (-5, ?)