Determine the values of x for which the function is continuous. If the function is not continuous, determine the reason.f(x) = 
A. Not continuous at x = 5; small change
B. Not continuous at x = -5, 5; small change
C. Continuous for all x
D. Not continuous at x = -5; function not defined
Answer: D
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Use De Moivre's theorem to simplify the expression. Write the answer in the form a + bi.
4
A. 
+ 
i
B. 
+ 
i
C. 81i
D. 
+ 
i
Assume x and y are functions of t. Evaluate dy/dt.xy2 = 4; 
= -5, x = 4, y = 1
A. 
B. 
C. - 
D. - 
Solve the problem.The Cool Company determines that the supply function for its basic air conditioning unit is 
and that its demand function is 
, where p is the price. Determine the price for which the supply equals the demand.
A. $22.36 B. $22.86 C. $21.36 D. $21.86
The function f is one-to-one. Find its inverse.f(x) = 2x - 4
A. f-1(x) = 
B. f-1(x) = 
- 4
C. f-1(x) = 
D. f-1(x) = 
+ 4