Find the absolute value.
A. -7.4
B. 7.4
C. ± 7.4
D. 0
Answer: B
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Solve the problem.The total cost of owning and operating a mini-van when you have driven 6000 miles is 
while the total cost when you have driven 10,000 miles is 
. Find and interpret the slope of the line connecting the points (6000, 2000) and (10,000, 3333.33).
A. The cost decreases $12 per mile. B. The cost increases $0.33 per mile. C. The cost decreases $3.00 per mile. D. The cost increases $12 per mile.
Find all horizontal asymptotes of the given function, if any. f(x) = 
A. y = 0 B. no horizontal asymptotes C. y = -1 D. y = -4, y = 4
Solve the problem.Janice is running a 9753 meter race. Assume that she runs at a constant speed of 308 meters per minute. Express the function f(t) that gives her distance from the finishing line t minutes after the start of the race.
A. f(t) = 9753 + 308t
B. f(t) = 308t
C. f(t) = 9753 - 
D. f(t) = 9753 - 308t
Solve the problem.The profit (in thousands of dollars) that a company earns from producing x tons of brass and y tons of steel can be approximated by 
Find the amount of brass and steel that maximize profit and find the value of the maximum profit.
A. 
tons of brass and 
tons of steel; maximum profit is $800,858
B. 
tons of brass and 
tons of steel; maximum profit is $1,064,667
C. 
tons of brass and 
tons of steel; maximum profit is $1,455,704
D. 
tons of brass and 
tons of steel; maximum profit is $1,455,704