Solve the equation.
= 9
A. {40}
B. {20}
C. {-40}
D. {80}
Answer: A
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Solve.-7.1 + x = 22.8
A. 15.7 B. 29.9 C. 29.4 D. 15.2
Identify which of the graphs could be the graph of a polynomial function.f(x) = 4x4 + 4x3
A. 
B. 
C. 
D. 
Solve the problem involving modeling with polynomial functions.For this problem, y-values given correspond to the number of graduates at School X over the years 1990 (x = 0), through 1994 (x = 4). (a) Use the data given in the table below to determine a quartic (fourth-degree) polynomial model. 
(b) Based on the quartic model, how many graduates were at School X in 1991?
A. (a) y ? 7.291
x4 - 56.58
x3 + 126.708
x2 - 73.41
x + 674;
(b) 678 graduates
B. (a) y ? 7.291
x4 - 85.75x3 + 340.208
x2 - 525.75x + 938;
(b) 674 graduates
C. (a) y ? 1.750x3 - 16.00x2 + 30.75x + 671.5;
(b) 657 graduates
D. (a) y ? 1.750x3 - 16.00x2 + 30.75x + 671.5;
(b) 688 graduates
Divide.
A. 
- 5
B. 3x - 5
C. 12x - 5
D. 3x - 20