Solve.If y varies inversely as x, and y = 
when x = 30, find y when x = 6.
A. 1
B. 
C. 
D. 36
Answer: A
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Multiply.(x - 1)(x2 - x - 7)
A. x3 - 2x2 - 6x + 7 B. x3 - 2x2 - 8x - 7 C. x3 - 2x2 - 7x + 7 D. x3 - 6x + 7
Solve the problem.A lot is in the shape of a right triangle. The shorter leg measures 90 meters. The hypotenuse is 30 meters longer than the length of the longer leg. How long is the longer leg?
A. 120 meters B. 90 meters C. 180 meters D. 150 meters
Solve the problem. Round to two decimal places unless otherwise indicated.In the following formula, y is the minimum number of hours of studying required to attain a test score of x: y = 
. How many hours of study are needed to score 86?
A. 5.58 hr B. 2.97 hr C. 100.91 hr D. 29.70 hr
Two cards are dealt without replacement from a well-shuffled deck of cards. Find the probability of each event.
The first card is a club.