The numbers of hours required to manufacture and test each of two models of heart monitor are given in Table 1, and the number of hours available each week for manufacturing and testing is given in Table 2. Table 1
Hours Required per Unit
Model AModel BManufacturing2340Testing2928 Table 2
Hours Available
Manufacturing361Testing343 How many of each model can be manufactured each week? Select the correct answer, if a and b are the numbers of the model A and B.
?
A. 8 of model A, 5 of model B
B. 8 of model A, 7 of model B
C. 7 of model A, 7 of model B
D. 7 of model A, 5 of model B
E. 9 of model A, 5 of model B
Answer: D
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Solve the right triangle. Round results to an appropriate number of significant digits.B = 52.6°, a = 0.306 in.
A. A = 37.4°, b = 0.400 in., c = 0.504 in. B. A = 37.4°, b = 0.186 in., c = 0.385 in. C. A = 37.4°, b = 0.400 in., c = 0.385 in. D. A = 37.4°, b = 0.243 in., c = 0.234 in.
Graph the function.f(x) = 
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B. 
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Find the domain of the rational expression. 
A. {x|x is a real number and x ? 8} B. {x|x is a real number and x ? 8 and x ? 1} C. {x|x is a real number} D. {x|x is a real number and x ? -8}
Find the real solutions of the equation by factoring.15a3 - 9a2 + 25a - 15 = 0
A. 
B. 
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D. 