Find all values of ? in [-4?, 4?] satisfying each of the following equations. cos ? = 1
A. ? = -4?, -2?, 0, 2?, 4?
B. ? = 0, 2?, 4?
C. ? = -4?, -2?, 2?, 4?
D. ? = -3?, -?, ?, 3?
Answer: A
Mathematics
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B. 
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The following comparison line graph indicates the number of vehicles sold for a seven week period by two different salespeople. Use the graph to answer the question.
How many more vehicles did Chris sell in the first week than did Chris sell in the fifth week?
A. 5 vehicles B. 3 vehicles C. 2 vehicles D. 4 vehicles
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, and 
sketch and in standard position.
?
?
A. 
B.
C.
D.
E.
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Use factoring techniques to solve the polynomial equation.6y3 + 4y2 = 6y2 + 4y
A. 
B. 
C. 
D. 
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