Tell whether the relation is a function.

A. Function
B. Not a function


Answer: A

Mathematics

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Insert the correct sign of inequality (> or <) between the given numbers.7 - 

A. 7 > - 
B. 7 < - 

Mathematics

Solve the problem.A certain electronic air cleaner is capable of filtering x liters of air per second and the percentage of the contaminants that are removed from the air may be calculated by  where  Graph f in [0,85,5] by  Then, use the intersection-of-graphs method to estimate the x-values where 75% to 95% of the pollutants are removed.

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A. 75% to 95% are removed when
about 36 to 47 liters of air are
filtered.

B. 75% to 95% are removed when
about 25 to 33 liters of air are
filtered.

C. 75% to 95% are removed when
about 45 to 56 liters of air are
filtered.

D. 75% to 95% are removed when
about 27 to 36 liters of air are
filtered.

Mathematics

Graph the parabola.x = (y - 2)2

A.
 
B.

C.
 
D.

Mathematics

Use addition, subtraction, or multiplication to solve the problem.The list price of a car is $13,973. The manufacturer offers a rebate of  What is the final price of the car?

A. $13,143 B. $14,703 C. $14,803 D. $13,043

Mathematics