Find the inverse using composition.f(x) = (x - 2)2 + 3 , x ? 2
A. f-1(x) = 
+ 2
B. f-1(x) = 
- 3
C. f-1(x) = 3x2 + 2
D. f-1(x) = 
- 2
Answer: A
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Answer the question.Suppose that a test for a disease correctly gives positive results for 95% of those having the disease and correctly gives negative results for 90% of those who don't have the disease. Suppose also that the incidence of the disease is 1%. If a person tests positive for the disease, what is the chance that they have the disease? Find the exact percentage.
A. 8.8% B. 13.4% C. 95% D. 10%
Solve the problem.A cashier has a total of 140 bills, made up of fives and tens. The total value of the money is $910. How many ten-dollar bills does the cashier have?
A. 21 ten-dollar bills B. 98 ten-dollar bills C. 42 ten-dollar bills D. 63 ten-dollar bills
Solve the problem. Round to the nearest cent.An invoice is dated Aug 28 AS OF Sep 2 with terms of 4/20, n/30. Find the final discount date and the net payment date.
A. Final discount date: Sept 17 Net payment date: Sept 27 B. Final discount date: Sept 20 Net payment date: Sept 30 C. Final discount date: Sept 23 Net payment date: Oct 2 D. Final discount date: Sept 22 Net payment date: Oct 2
Solve the problem.At a local grocery store the demand for ground beef is approximately 50 pounds per week when the price per pound is $4, but is only 40 pounds per week when the price rises to $5.50 per pound. Assuming a linear relationship between the demand x and the price per pound p, express the price as a function of demand. Use this model to predict the demand if the price rises to $5.80 per pound.
A. p = 0.15x + 11.5; 38 pounds B. p = 11.5x + -0.15; 40 pounds C. p = - 0.15x + 11.5; 38 pounds D. p = - 0.15x - 11.5; 40 pounds