Perform the row operation(s) on the given augmented matrix.R1 = 
r1
A. 
B. 
C. 
D. 
Answer: B
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Solve.From a 40-inch by 40-inch piece of metal, squares are cut out of the four corners so that the sides can then be folded up to make a box. Let x represent the length of the sides of the squares, in inches, that are cut out. Express the volume of the box as a function of x. Give the function and state its domain.
A. V = 4x3 - 160x2 + 1600x: x < 40 B. V = 4x3 - 160x2 + 1600x: 0 < x < 20 C. V = 2x3 - 120x2 + 40x: 0 < x < 20 D. V = 2x3 - 120x2 + 1600x: x >0
Find the requested asymptote(s) of the given function. f(x) = 
; Find the vertical asymptote(s).
A. x = -8, x = 4 B. x = - 32 C. x = 8, x = -4 D. x = -8, x = 4, x = -3
Provide an appropriate response. Factor completely: x3 + 5x2 - 9x - 45
A. (x + 5)(x - 3)2 B. (x + 5)(x + 3)(x - 3) C. (x2 + 5)(x - 9) D. (x + 5)(x - 5)(x + 3)(x - 3)
Simplify.5 ? 33
A. 3375 B. 45 C. 135 D. 30