Find the value for the function.Find f(-x) when f(x) = 2x2 - 2x - 4.
A. -2x2 + 2x - 4
B. 2x2 + 2x + 4
C. 2x2 + 2x - 4
D. -2x2 + 2x + 4
Answer: C
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the y-axisx = 4
A. 20? B. 48? C. 40? D. 32?
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Use a calculator to find the approximate the square root to three decimal places.
A. 18.335 B. 18.330 C. 18.327 D. 336.000
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Find the missing parts of the triangle. 
If necessary, round angles to the nearest degree and give exact values of side lengths.
A. A = 45°, C = 75°, c = 6
+ 6
B. no such triangle
C. A = 75°, C = 45°, c = 6
+ 6
D. A = 45°, C = 75°, c = 6
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. -3x18y15 B. 9x12y10 C. -3x12y10 D. 3x12y10
Mathematics