Give the reciprocal of the number. 
A. - 
B. 
C. - 
D. 9
Answer: B
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Find a positive value of the given variable so that the trinomial is factorable.5x2 + bx + 1; b = ?
A. 4 B. 6 C. 7 D. 5
State the domain of the rational function.f(x) = 
A. (-?, -3) ? (-3, ?) B. (-?, 3) ? (3, ?) C. (-?, ?) D. (-?, -24) ? (-24, ?)
Solve the problem.If n(A) = 52, n(B) = 55, and n(A ? B) = 17, find n(A ? B).
A. 73 B. 107 C. 90 D. 124
Solve the problem.An office manager is buying used filing cabinets. Each small file cabinet costs $7, takes up 7 square feet of floor space, and holds 10 cubic feet of files. Each large file cabinet costs $8, takes up 10 square feet of floor space, and holds 13 cubic feet of files. The total cost cannot exceed $97, and the office has no more than 109 square feet of floor space available for the cabinets. How many of each file cabinet should the manager buy to maximize storage capacity? What is the maximum storage capacity?
A. 0 small file cabinets and 13 large file cabinets; 169 cubic feet B. 6 small file cabinets and 7 large file cabinets; 161 cubic feet C. 13 small file cabinets and 0 large file cabinets; 130 cubic feet D. 7 small file cabinets and 6 large file cabinets; 148 cubic feet