Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, 
< ? < ?Find cos 
.
A. - 
B. - 
C. 
D. 
Answer: D
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Use the given growth rate to find the approximate doubling time and to predict the population in 50 years of a growing suburban town (based on a current population of 100,000).Use the average growth rate between 1850 and 1950, which was about 0.2%.
A. 345 years; population in 50 years = 106,121 B. 350 years; population in 50 years = 110,409 C. 360 years; population in 50 years = 108,244 D. 352 years; population in 50 years = 112,617
The tables show the operations ? and ? on the set {a, b, c, d, e}. 
Replace x with a, b, c, d, or e to form a true statement. x ? b = a
A. c B. e C. a D. b
Determine if the given function y = f(x) is a solution of the accompanying differential equation.y' = - y2y = 
A. Yes B. No
Divide and reduce to lowest terms.
÷ 
A. 
B. z + 3
C. 
D. 