Find the nth term an of the geometric sequence.an = 
; 9000, 900, 90, . . . .
A. n = 5
B. n = 8
C. n = 10
D. n = 6
Answer: C
Mathematics
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Solve the problem.Find the tangent to y = 2 - sin x at x = ?.
A. y = x - ? + 2 B. y = - x + 2 C. y = - x + ? - 2 D. y = x - 2
Mathematics
Use trial and error to factor the trinomial, or state that the trinomial is prime.5x2 + 3x - 2
A. (5x + 2)(x - 1) B. (5x - 1)(x + 2) C. (5x + 1)(x - 2) D. (5x - 2)(x + 1)
Mathematics
Simplify. Assume that each variable is nonnegative.
A. 8
B. 8y
C. 
D. 
Mathematics
Find the phase shift of the function.y = sin 
A. 
units up
B. 
units to the left
C. 
units to the right
D. 
units down
Mathematics