Use the given triangles to evaluate the expression. Rationalize all denominators. 
cot 
- sin 
A. - 
B. 
C. 
D. - 
Answer: D
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Express the integrand as a sum of partial fractions and evaluate the integral.
A. 
- 6x + 9 ln
- 
+ C
B. 
- 6x - 27 ln
+ 
+ C
C. 
- 6x + 27 ln
+ 
+ C
D. 27 ln
+ 
- 
+ C
Solve using Cramer's rule.
A. (6, 4) B. (-7, 4) C. (-6, 3) D. No solution
Solve the problem.Suppose that the population of a certain city during a certain time period can be modeled with the function, P(x) = -0.1x5 + 3.2x4 + 5000, where x is time in years since 1960. By sketching a graph of P(x), estimate during what time period the population of the city was increasing.
A. Between 1960 and 1986 B. Between 1960 and 1973 C. Between 1965 and 1986 D. Between 1986 and 1992
State whether you believe the two variables are correlated. If you believe they are correlated, state whether the correlation is positive or negative. The age of a textbook and how well it is written
A. Positive correlation B. Negative correlation C. Not correlated