From a 
-lb wheel of cheese, a 
-lb piece was served. How much cheese remained on the wheel?
A. 
lb
B. 
lb
C. 
lb
D. 
lb
Answer: C
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Solve the given applied problems involving variation.At a fixed temperature, the resistance R of a wire varies directly as the length l and inversely as the square of its diameter d. If the resistance is 1.4 ohm when the diameter is 1 mm and the length is 280 cm, what is the resistance when the diameter is 4 mm and the length is 1870 cm?
A. 0.584 ohm B. 116.875 ohm C. 163.625 ohm D. 2.338 ohm
Determine whether the relation is a function.{(-5, -5), (-2, 2), (1, -8), (8, 1)}
A. Function B. Not a function
Find an equation that shifts the graph of f by the indicated amounts.f(x) = x2 + 2x - 7; left 2 units, down 18 units
A. y = (x - 2)2 + 2(x - 2) + 25 B. y = (x + 2)2 + 2(x + 2) - 25 C. y = (x + 2)2 + 2(x - 2) - 25 D. y = (x - 2)2 + 2(x + 2) + 25
Find the reciprocal of the number or expression. Assume variables do not cause any denominators to equal 0.
A. 
B. 
C. -19
D. 