Use factoring techniques to solve the quadratic equation.x(x + 2) = 3x + 90
A. {-10, 9}
B. {-9, 10}
C. {9, 10}
D. {-9, -10}
Answer: B
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk
A. a = 
T
B. a = 
N
C. a = 
N
D. a = T + 
N
Evaluate the integral.
dx
A. 
+ 2(x + 2)-1 + C
B. (x + 2)2 tan-1 2x + ln 
+ 2(x + 2)-1 + C
C. 
+ ln 
+ 2(x + 2)-1 + C
D. 
+ ln 
- 2(x + 2)-1 + C
Using Green's Theorem, calculate the area of the indicated region.The area bounded above by y = 8 and below by y = 
x2
A. 96 B. 0 C. 192 D. 48
Use a graphing calculator to determine which expression completes the identity.The expression 
is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. csc x cot x B. sec x cot x C. tan2 x- 1 D. cos x sin x