Provide an appropriate response.If f(x) = 2x2 - x - 3 and g(x) = -4x2 + 6x + 5, find the following:(a) (f + g)(x)
(b) (f - g)(x)
(c) (f - g) (-1)
A. (a) -2x2 + 5x + 2
(b) 6x2 - 7x - 8
(c) 5
B. (a) -2x2 + 5x + 2
(b) -2x2 - 5x - 8
(c) 5
C. (a) -2x2 + 7x + 2
(b) -2x2 - 7x - 8
(c) 15
D. (a) -2x2 + 5x + 2
(b) 6x2 - 5x - 8
(c) 15
Answer: A
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Evaluate the integral by using a substitution prior to integration by parts.
A. 
[cos (ln x) + sin (ln x)] + C
B. x[cos (ln x) + sin (ln x)] + C
C. 
[cos (ln x) - sin (ln x)] + C
D. x cos (ln x) + sin (ln x)+ C
Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R.
at 
; R: |x| ? 0.1, |y| ? 0.1
A. |E| ? 11.4731 B. |E| ? 5.7366 C. |E| ? 10.039 D. |E| ? 20.078
Solve the problem.Solve S = 
?r2 + (r + 9)h for r by writing it in the form ar2 + br + c = 0 and then using the quadratic formula..
A. r = 
B. r = 
C. r = 
D. r = 
Name the property illustrated by the statement.2 + (25 + 15) = (2 + 25) + 15
A. commutative property of addition B. associative property of addition C. identity element for addition D. distributive property