The predicted cost C (in hundreds of thousands of dollars) for a company to remove p% of a chemical from its waste water is shown in the table below. A model for the data is given by 
, 
. Use the model to find the average cost for removing between 75% and 80% of the chemical.
p 0 10 20 30 40 50 60 70 80 90 C 0 0.7 1.1 1.4 1.7 2.1 2.7 3.6 5.4 10?
A. $480,000
B. $240,000
C. $120,000
D. $480,001
E. $960,000
Answer: A
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Use the slopes of UQ, UR, US, and UT to estimate the rate of change of y at the specified value of x.x = 5
A. 5 B. 1 C. 2 D. 0
Starting in the year 2000, the number of crimes committed each year in Middletown is predicted to grow according to a linear growth model. During the year 2000, Middletown recorded 2 crimes (P0 = 2). During the year 2001, Middletown recorded 6 crimes (P1 = 6).According to the model, how many crimes are likely to be committed in Middletown during 2002?
A. 18 B. 12 C. 24 D. 10 E. none of these
Graph the inequality.y ? 2x - 4
A. 
B. 
C. 
D. 
Find only the rational zeros.f(x) = x4 + 9
A. 0
B. 3, -3, 
, -
C. 
, - 
D. No rational zeros