Find the domain of the composite function f ? g.f(x) = 2x + 2; g(x) = 
A. {x 
B. {x 
C. {x 
D. {x 
Answer: C
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Find the particular solution to the given differential equation that satisfies the given conditions.
+ 5 
+ 6y = -5 - ex; 
= 
and y = - 
when x = 0
A. y = - 2e-3x + 2e-2x - 
- 
ex
B. y = - 2e-3x - 2e-2x - 
- 
ex
C. y = - 2e-3x + 2e-2x - 
+ 
ex
D. y = - 2e-3x + 2e-2x + 
- 
ex
Answer the question. Give your answer in simplest form.Jake correctly answered 16 out of 25 questions in Test 1 and 18 out of 25 questions on test 2. On Test 3 he missed 5 out of 27 questions. Which test had the best score?
A. Test 1 B. Test 3 C. Test 2 D. Test 2 and Test 3
Perform the indicated operation. Express your answer in simplest form.
+ 
A. 
B. 
C. 
D. 
Factor.27x3 - 117x2 - 90x
A. x(3x + 2)(9x - 45) B. 9(3x - 2)(x + 5) C. 9x(3x + 2)(x - 5) D. (x2 - 5)(27x + 18)