Solve the problem.In 2012, a certain country recovered 26% of its municipal solid wastes through recycling, up from 17% in 2007. Let P represent the percentage recycled and t the number of years since 2007. Find a linear equation for P as a function of t.
A. P = 1.8t + 24
B. P = 1.8t + 17
C. P = 0.9t - 17
D. P = -1.8t + 7
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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The graph below is one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph. If you are using a graphing calculator, graph your equation to verify that it is correct.
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What will be an ideal response?
Mathematics
Given a = 5, b = 4 and c = 6 use the Law of Cosines to solve the triangle for the value of A. Round answer to two decimal places. 
A) 41.41° B) 80.44° C) 60.33° D) 55.77° E) 82.82°
Mathematics