Rationalize the denominator. Assume all variables represent positive real numbers.
A. 22
B. 
C. 1
D. 22
Answer: B
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Evaluate the integral by changing the order of integration in an appropriate way.
A. 
ln 2 ln cos 7
B. - 
ln 2 ln cos 7
C. 9 ln 2 ln cos 7
D. - 9 ln 2 ln cos 7
The graph of a function f is given. Use the graph to answer the question.For what numbers x is f(x) > 0?
A. (-30, ?) B. (-? -30) C. [-50, -30), (35, 50) D. (-30, 35)
Graph the function using transformations.f(x) = 
- 4
A. 
B. 
C. 
D. 
Solve the problem.A gas company has the following rate schedule for natural gas usage in single-family residences:Monthly service charge $8.80Per therm service charge1st 25 therms$0.6686/thermOver 25 therms$0.85870/thermWhat is the charge for using 25 therms in one month?What is the charge for using 45 therms in one month?Construct a function that gives the monthly charge C for x therms of gas.
What will be an ideal response?