Find the phase shift of the function.y = 2 cos 
A. 
units to the left
B. 2 units up
C. 
units to the right
D. 2 units down
Answer: A
Mathematics
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Reduce to lowest terms.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
= 9
A. 
B. {9}
C. 
D. 
Mathematics
Solve the system of equations by substitution.
A. x = -7, y = 7; (-7, 7) B. x = -6, y = 6; (-6, 6) C. x = 6, y = -6; (6, -6) D. x = 7, y = -7; (7, -7)
Mathematics
Find the indicated sum.Find the sum of the first 50 terms of the arithmetic sequence: 5, -4, -13, -22, . . .
A. -10,767 B. -10,775 C. -11,000 D. -445
Mathematics