Use an equation to solve the problem.Andrea spent $167.74 at the mall. She bought a CD for $15.39. She bought a sweater for $61.99. Blue jeans were on sale for $22.59, so she bought several pairs. How many pairs of blue jeans did Andrea buy?
A. 4
B. 6
C. 5
D. 3
Answer: A
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Find the remaining zeros of f(x) given that c is a zero. Then rewrite f(x) in completely factored form.f(x) = 3x4 - 7x3 + 19x2 - 35x + 20; c = 1 is a zero
A. 5, 
; f(x) = (x - 5)(3x - 4)(x2 + 1)
B. -5, -1, 
; f(x) = (x - 1)2(3x - 4)(x + 5)
C. -5, -1, - 
; f(x) = (x - 1)(3x + 4)(x + 1)(x + 5)
D. 
; f(x) = (x - 1)(3x - 4)(x2 + 5)
Find the average of the set of numbers.
, 
, and 
A. 
B. 
C. 1
D. 
Determine where the function is increasing and where it is decreasing.f(x) = -x2 + 4x + 5
A. increasing on (2, ?) decreasing on (-?, 2) B. increasing on (-?, 2) decreasing on (2, ?) C. increasing on (-?, 9) decreasing on (9, ?) D. increasing on (9, ?) decreasing on (-?, 9)
Solve the quadratic equation by the square root property. If possible, simplify radicals or rationalize denominators.(x + 7)2 = 20
A. {-7 ± 2
}
B. {±2
}
C. {-7 ± 2
}
D. {2
± 7}