Calculate the period of the function.f(x) = sin 
+ sin 
A. 52?
B. 26
C. 26?
D. 52
Answer: D
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Solve the problem.The population of a town over a four year period is shown in the following table.
Assume that the population can be modeled by a geometric sequence. Estimate the town's population for year 10. Round to two decimal places when calculating the common ratio, and the final answer.
A. 11.19 thousand B. 11.41 thousand C. 10.76 thousand D. 10.97 thousand
Find the equation of the line of best fit from the data in the table. Round the slope and the y-intercept to the nearest hundredth.
A. y = 0.17x + 2.11 B. y = 0.5x - 2 C. y = 0.11x + 2.49 D. y = x - 8
Solve the problem.The logistic growth function f(t) = 
describes the population of a species of butterflies 
after they are introduced to a non-threatening habitat. How many butterflies are expected in the habitat after 19 months?
A. 520 butterflies B. 9880 butterflies C. 444 butterflies D. 570 butterflies
Solve the problem.In Miguel's home town, the percentage of women who smoke is increasing while the percentage of men who smoke is decreasing. The function 
models the percentage, y, of women in this city who smoke x years after 1990. The function 
models the percentage, y, of men in this city who smoke x years after 1990. Use these models to determine when the percentage of women who smoke will be the same as the percentage of men who smoke. Round to the nearest year. What percentage of women and what percentage of men (to the nearest whole percent) will smoke
at that time? A. 2017; 24% B. 2016; 24% C. 2018; 24% D. 2019; 23%