Find a formula for the nth term of the sequence.The sequence 8, 10, 12, 14, 16, . . . (every other integer starting with 8)
A. an = n + 14
B. an = n + 15
C. an = 2n + 7
D. an = 2n + 6
Answer: D
Mathematics
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Express the sum in sigma notation.- 
+ 
- 
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
Solve for x and y: 2x + y = 4; x - 2y = 2
a. x = 2 y = 0 b. x = 0 y = -2 c. x = 0 y = 2 d. x = -2 y = 0 e. x = 2 y = 2
Mathematics
Find the phase shift.y = -4 cos
A. 
units to the left
B. 4? units to the right
C. 
units to the right
D. ? units to the left
Mathematics
Multiply and simplify.-6z ? 
A. 0 B. 36z C. 1 D. -1
Mathematics