Determine the amplitude or period as requested.Period of y = 
cos 
x
A. 
B. 
C. 
D. 
Answer: A
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Evaluate the integral.
A. 
ln
B. 
ln
C. 
ln
D. 
ln
The calculator graphs shows the x-values of the x-intercepts of the graph of the polynomial in the equation. Use the graphs to solve the equation.4x2 -20x +21 = 0
A. {1.5, 3.5} B. {-29, 21} C. {-3.5, -1.5} D. {6, 14}
Find the current yield. Round to the nearest tenth of a percent.You invested $6225 in 100 shares of stock. During the following year, the company paid dividends of $2.75 per share.
A. 22.6% B. 0.4% C. 2.3% D. 4.4%
Solve the problem.Maggie bought 17 packages of paper plates for a party of 95 people. Each person used one plate, and 9 plates were used for serving. At the end of the party she was left with 100 plates. How many plates were there in each package?
A. 18 plates B. 15 plates C. 12 plates D. 24 plates