Convert the units using unit fractions.540 min = 
hr
A. 22
B. 9
C. 4
D. 216
Answer: B
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Rewrite without rational exponents, and simplify, if possible.(x4y4)1/7
A. 
B. 
C. x28y28
D. 
Solve the inverse variation.If m varies inversely as n and n is 6 when m is 11, what is n when m is 5?
A. 13.2 B. 0.37 C. 8.8 D. 2.73
Solve the problem.The following points form a quadratic relationship: (1, 5.0), (2, 4.4), (3, 4.3), (4, 4.2), (5, 4.6), (6, 4.8), (7, 5.4), (8, 6.2) . The x-coordinates are the years a particular company has been in operation and the y-coordinates are the profit, in millions, for that year. Find the quadratic function that models the profit in millions as a function of x, the number of years of operation. Round to three decimal places.
A. y = - 0.003x2 + 0.145x - 0.892 B. y = 0.101x2 - 0.723x + 5.552 C. y = 0.099x2 + 1.254x - 3.512 D. y = 0.203x2 - 0.945x + 7.098
Factor.3x2 - 20x - 32
A. (x - 4)(x - 8) B. (3x + 4)(x - 8) C. (4x + 3)(x - 8) D. (x + 3)(x - 8)