Use identities to simplify the expression.
- 
A. sec x
B. tan2 x sec x
C. csc x
D. sec x tan x
Answer: A
Mathematics
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Find the derivative.y = 5x2 + 11x + 5x-3
A. 10x + 11 + 15x-4 B. 10x + 11 - 15x-4 C. 5x + 5x-4 D. 10x - 15x-4
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Determine the viewing window used.
A. 
B. 
C. 
D. 
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Evaluate the expression according to the replacement value given.9x2 + 3x; replace x with 4.
A. 48 B. 132 C. 156 D. 84
Mathematics
Specify the center and radius of the circle.x2 + y2 + 18x - 16y + 96 = 0
A. center: (-8, 9); radius: 49 B. center: (9, -8); radius: 49 C. center: (8, -9); radius: 7 D. center: (-9, 8); radius: 7
Mathematics