Fill in the blank with one of the words or phrases listed below. Choices may be used more than once or not at all.A set of ordered pairs is called a(n) .

A. range
B. relation
C. function
D. domain


Answer: B

Mathematics

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Solve the problem.A 1,000 gallon tank is filled with pure water. A salt solution with a concentration of 11 g/gal flows into the tank at a rate of 8 gal/min. The thoroughly mixed solution is drained from the tank at a rate of 8 gal/min.(a) Write an initial value problem for the mass of the salt.(b) Solve the initial value problem.

A. (a) m'(t) = -0.008m + 88, m(0) = 0 (b) m = -11,000e-0.008t + e-0.008 B. (a) m'(t) = -0.008m + 11,000, m(0) = 1,000 (b) m = 11,000e-0.008t + 88 C. (a) m'(t) = 0.008m - 88, m(0) = 11 (b) m = -88e0.008t + 88 D. (a) m'(t) = -0.008m + 88, m(0) = 0 (b) m = -11,000e-0.008t + 11,000

Mathematics

Solve the problem.Suppose you would like to cross a 222-foot wide river in a boat. Assume that the boat can travel 33 mph relative to the water and that the current is flowing west at the rate of 7 mph. If the bearing is chosen so that the boat will land at a point exactly across from its starting point, how long will it take for the boat to make the crossing? Give your answer to the nearest second.

A. 2 sec B. 9 sec C. 19 sec D. 5 sec

Mathematics

Use algebraic and/or graphical methods to solve the inequality. +  ? - 

A. -4 ? x < -2 or -2 < x ? 1 B. x ? -2 or 1 ? x < 2 C. -4 ? x < -2 or 1 ? x < 2 D. x ? -4 or -2 < x ? 1 or x > 2

Mathematics

Use the graph of the relation to identify the domain and range.y = x3 - 2

A. domain: (-?, ?) range: (-?, ?) B. domain: (-?, ?) range: (2, ?) C. domain: (-2, ?) range: (-?, ?) D. domain: (2, ?) range: (-?, ?)

Mathematics