Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = -2x2 + 5x + 9
A. Increasing on (-?, 0); decreasing on ( 0, ?)
B. Increasing on (-?, 1); decreasing on ( -1, ?)
C. Increasing on 
; decreasing on 
D. Increasing on 
; decreasing on 
Answer: D
Mathematics
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.[Hint: Write the series as 1 + 4 + 
= 5 + 
+ 3
+ 
.]
A. 5e B. 8(e - 1) C. 3e + 5 D. 9e - 11
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A. 12x7 + 
B. -6 + 
C. -6 - 10x5
D. -6 + 5x2
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Find the exact value of the expression if ? = 60°. Do not use a calculator.g(?) = cos ?Find 3 g(?).
A. 
B. 
C. - 
D. - 
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What will be an ideal response?
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