Solve the problem.The NSC (Not So Consistent) Corporation has just completed its first year of business. The following chart shows its monthly profit (or loss).MonthProfit (Loss) in DollarsJanuary-14,526February1874March-8977April-14,107May14,073June14,632July-13,834August-13,170September-4860October6630November-3338December-974The profit was smallest in
.
A. February
B. December
C. June
D. January
Answer: A
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Use graphical methods to solve the linear programming problem.2x - 4y ? 102x + y ? 15x ? 0y ? 0Minimize P = 4x + 5y
A. Minimum of 39 when x = 1 and y = 7 B. Minimum of 20 when x = 5 and y = 0 C. Minimum of 75 when x = 0 and y = 15 D. Minimum of 33 when x = 7 and y = 1
Find the inverse of the following one-to-one function.f(x) = 2x
A. f-1(x) = 2 + x
B. f-1(x) = 2x
C. f-1(x) =
D. f-1(x) =
Solve the problem using the elimination method.Two angles are supplementary, and one is 40° more than three times the other. Find the smaller angle.
A. 145° B. 75° C. 105° D. 35°
Solve the exponential equation. Express the solution set in terms of natural logarithms.e x + 6 = 3
A. {ln 9} B. {ln 3 - 6} C. {e3 + 6} D. {e18}