Divide.
A. 0.74
B. 7.4
C. 0.135
D. 7.6
Answer: B
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Evaluate the expression.61
A. 
B. 6
C. 1
D. -6
Find a symbolic representation for f-1(x).f(x) = 6x3 + 7
A. f-1(x) = 
- 7
B. f-1(x) = 
C. Not a one-to-one function
D. f-1(x) = 
Solve the problem.It is necessary to have a 40% antifreeze solution in the radiator of a certain car. The radiator now has 50 liters of 20% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength?
A. 20 L B. 16.7 L C. 25 L D. 12.5 L
Use a graphing calculator to determine which expression completes the identity.The expression 
+ cot x 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 B. tan x C. cos x D. sec x