Match the given graph with its polynomial function.
A. f(x) = -x3 + 4x2 - 9
B. f(x) = x3 - 4x2 + 20x
C. f(x) = x3 + 9x
D. f(x) = -x3 + 20x
Answer: D
Mathematics
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For each right triangle, find the missing quantity. Express angles in degrees and minutes.Find A.
b = 43 kmB = 40°39'
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Graph the piecewise linear function.f(x) = 
A. 
B. 
C. 
D. 
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Find the ratio. Simplify, if possible.David's paycheck for a week at the video store was $113.68. If he worked 28 hours that week, what was his pay rate?
A. $4.06/hour B. $3.78/hour C. $4.21/hour D. $4.03/hour
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Set up the percent proportion for the application problem. Do not try to solve for any unknowns.Sales tax of $12 is charged on an item that costs $2000. What percent sales tax is charged?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
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