Use the quadratic formula to find the exact solutions.x2 = 15 + 9x
A. 9, 15
B. 
C. 9 ± 
i
D. 
± 
i
Answer: B
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Determine if the geometric series converges or diverges. If it converges, find its sum.
+ 
2 + 
3 + 
4 + 
5 + . . .
A. converges, 
B. diverges
C. converges, 
D. converges, 
Factor the trinomial completely.3x5 + 6x4 - 45x3
A. 3x3(x2 + 2x - 15) B. x3(x + 5)(3x - 9) C. 3x3(x + 5)(x - 3) D. x3(3x + 15)(x - 3)
Evaluate the terms of the sum using the given information.x1 = 4, x2 = 3, x3 = 1, and x4 = -4
A. -11 - 9 - 5 + 5 B. 5 - 9 - 1 + 5 C. 11 + 9 + 5 - 5 D. -5 - 3 + 1 + 11
A vending machine contains dimes and quarters only. There are 12 less dimes than quarters. If x represents the number of quarters, write an algebraic expression in terms of x that represents the value of all the coins in the vending machine in cents. Simplify the expression.
A) Value B) Value C) Value D) Value