Find the product.(x2 + x - 1)(x2 + x - 4)
A. x4 + 2x3 + 5x2 + 3x + 4
B. x4 + 2x3 - 4x2 - 5x + 4
C. x4 + x3 - 5x2 - 5x + 4
D. x4 + x3 + 6x2 + 5x + 4
Answer: B
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Use cubic regression to model the following data. Round your answers to two decimal places, if necessary. x 1.32 2.17 3.11 4.68 5.27 6.71 7.33 8.65 y 1.24 3.75 4.16 2.73 2.49 3.74 4.06 6.98?
A. 
B. 
C. ?
D. ?
Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (0, 0); parallel to the line 4x - y = 3
A. y = 
x
B. y = - 
x
C. y = 4x
D. y = - 
x + 3
Solve the problem.If Gloria received a 10 percent raise and is now making $26,400 a year, what was her salary before the raise? Round to the nearest dollar if necessary.
A. $25,000 B. $23,760 C. $24,000 D. $24,400
Solve using the zero-factor theorem.(4y - 8)2(y + 8) = 0
A. -2, 8
B. 
, -8
C. 2, -8
D. 2, 0