Rewrite with only sin x and cos x.cos 2x + sin x
A. 1 + 3 sin2 x
B. 1 + 3 sin x
C. 1 - 2 sin2 x + sin x
D. 1 + 2 sin2 x + sin x
Answer: C
Mathematics
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Find the sum of the series.
A. 
B. 41
C. 70
D. 
Mathematics
Evaluate the terms of the sum using the given information.x1 = 4, x2 = -2, x3 = -3, and x4 = 1
A. 5 + 1 - 9 - 5 B. 11 - 1 - 3 + 5 C. -5 + 7 + 9 + 1 D. -11 + 1 + 3 - 5
Mathematics
Solve the problem.George Higgendorf sells used books. He had start-up costs of $2000 and pays $3.00 for each book. He sells each book for $6.25. Express the revenue R as a function of x, where x represents the number of books sold.
A. R(x) = 9.25x B. R(x) = 3.00x C. R(x) = 6.25x D. R(x) = 2000x
Mathematics
Use your grapher to graph: 
Then sketch the graph.
Mathematics