Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Answer: A
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Find the area.
A. 12.4 ft2 B. 9.52 ft2 C. 6.2 ft2 D. 4.76 ft2
Solve.An engine working at capacity supplies 140 hp. What would it supply if it worked at 85% efficiency?
Fill in the blank(s) with the appropriate word(s).
Suppose that you toss a coin and roll a die. The sample space is shown in Figure. What is the probability of obtaining tails?
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Use percents, percent equations, and/or percent proportions to solve the application.Jeremy switches from drinking regular soda to drinking diet soda. If his regular soda contains 205 mg of sodium per liter and the diet soda contains 200 mg of sodium, find his percent decrease in calories by switching from regular to diet soda.
A. 97.6% B. 50.6% C. 2.4% D. 2.5%