Solve the application.Find the area of the skating rink. Use ? ? 3.14 and round to the nearest tenth if necessary.

A. A ? 932.2 yd2
B. A ? 1412.2 yd2
C. A ? 1864.3 yd2
D. A ? 1384.3 yd2


Answer: B

Mathematics

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Find or investigate the function as requested.The set of ordered pairs is a function. Find a rule that could describe the function.{(7, 5), (8, 6), (10, 8), (11, 9)}

A. Subtract 2 from the input number. B. Square the input number. C. Add 2 to the input number. D. There is no such rule.

Mathematics

Solve the problem.Maria and Charlie can deliver 44 papers in 4 hours. How long would it take them to deliver 33 papers?

A. 3.8 hours B. 3.0 hours C. 5.3 hours D. 132 hours

Mathematics

If y varies inversely as x, write a general formula to describe the variation.y = 0.8 when x = 0.2

A. y = 
B. y = 6.25x
C. y = 4x
D. y = 

Mathematics

Solve the problem.On the day when Julie left for her vacation, the function that converted U.S. dollars to British pounds was f(x) = 0.54521x, where x is the number of U.S. dollars and f(x) is the number of British pounds. Find the inverse function.

A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = x - 0.54521

Mathematics