Use the REGRESSION feature on a graphing calculator.For some reason the quality of production decreased as the year progressed at a flash drive manufacturing plant. The following data represent the percentage of defective flash drives produced at the plant in the corresponding month of the year.
Use the regression equation with values rounded to four decimals to predict the percentage of defective drives in month 6, June.
A. 2.3%
B. 2.15%
C. 2.20%
D. 2.0%
Answer: B
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For the region R, find the horizontal line y = k that divides R into two subregions of equal area.R is the region bounded by y = 4 - 
and the x-axis.
A. k = 1 - 2
B. k = 4 - 
C. k = 4 + 2
D. k = 4 - 2
Write the answer to the problem as an algebraic expression.A water tank holds g gallons. Since there are 4 quarts per gallon, how many quarts does the tank hold?
A. 
quarts
B. (g + 4) quarts
C. 4g quarts
D. 
quarts
Solve.The amount of tread left on a tire varies inversely as the number of miles the tire has traveled. A tire that has traveled 66,000 mi has 
in of tread left. How much tread will be left on a tire that has traveled 57,000 mi? Express your answer as a simplified fraction.
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Write the sentence as an equation.The quotient of 140 and five times 7 yields 4.
A. 
= 4(7)
B. 
= 5(7)
C. 
= 4
D. 140 - 5(7) = 4