Use the data shown in the scatter plot to determine whether the data should be modeled by a linear function.
A. Yes, exactly linear
B. Yes, approximately linear
C. No, data points do not lie close to a line
Answer: B
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Solve the equation.15 ( r + 2 ) = 12 ( r - 3 )
A. r = –20 B. r = –32 C. r = –27 D. r = –13 E. r = –22
Solve the problem.Let y(t) be the population of a species of plant that is being harvested, for t ? 0. Consider the harvesting model 
where h is the annual harvesting rate, y0 is the initial population of the species, and t is measured in years. If y0 = 2000, what harvesting rate should be used to maintain a constant population of y = 2000, for t ? 0?
A. h = 4 yr-1 B. h = 10 yr-1 C. h = 100 yr-1 D. h = 2000 yr-1
Give an appropriate answer.Let
f(x) = 9 and
g(x) = -4. Find
.
A. - 
B. -9
C. 13
D. - 
Perform the indicated operation and simplify. Write the answer in the form a + bi.
? 
A. -
i
B. 
C. -
D. 
i