Write out the first five terms of the sequence.an = (-1)n - 1 
A. - 3, 
, 1, - 
, 
B. 3, 
, 1, 
, 
C. - 3, 
, - 1, 
, - 
D. 3, - 
, 1, - 
, 
Answer: D
Mathematics
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Solve the problem.At the end of 9 mo, the balance of an account earning annual simple interest is $8180. If at the end of 15 mo the balance is $8300, what is the annual interest rate?
A. 4% B. 3.5% C. 3% D. 2%
Mathematics
Give the coordinates of the vertex and graph the equation in a window that includes the vertex.y = (x - 4)2 + 2
A. Vertex: (-4, 2)
B. Vertex: (-4, -2)
C. Vertex: (4, -2)
D. Vertex: (4, 2)
Mathematics
Solve the system of equations by the substitution method. Check your solutions.
A. 
B. 
C. 
D. 
Mathematics
Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = sec ?Find f(?).
A. 2
B. 
C. 
D. 
Mathematics