Write a short statement that expresses a possible function between the given variables.(number of SUVs on road, air quality)
A. As the quality of the air deteriorates, the number of SUVs on the road decreases.
B. As the number of SUVs on the road increases, the quality of the air generally deteriorates.
C. As the quality of the air deteriorates, the number of SUVs on the road increases.
D. As the number of SUVs on the road decreases, the quality of the air generally deteriorates.
Answer: B
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Simplify. Assume that all variables are nonnegative.
A. 8ab6 B. 64ab4 C. 64ab6 D. 8ab4
Divide numerator and denominator by the highest power of x in the denominator to find the limit.
A. 0 B. ? C. 2 D. -?
Graph the function.y = 2 cos 
x
A. 
B. 
C. 
D. 
Answer the question.A parking lot measures 110 by 160 feet including a sidewalk of uniform width around its perimeter. Let x represent the width of the sidewalk. What is the length of the sidewalk in terms of x?
A. 220 + 2(2x - 160) B. 220 + 2(160 - 2x) C. 220 + 2(160 - x) D. 110 + (110 - x)