Write the matrix in reduced row-echelon form.
A. 
?
B.
?
C.
?
D.
?
E.
Answer: D
Mathematics
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Multiply or divide as indicated and reduce to lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics
Sketch the graph of the function 
using the curve-sketching guidelines.
What will be an ideal response?
Mathematics
Write the expression in the standard form a + bi.i6
A. i B. -i C. 1 D. -1
Mathematics
Find the x- and y-intercepts of f.f(x) = -x2(x + 6)(x2 - 1)
A. x-intercepts: -6, 0, 1; y-intercept: -6 B. x-intercepts: -6, -1, 0, 1; y-intercept: 0 C. x-intercepts: -1, 0, 1, 6; y-intercept: 0 D. x-intercepts: -6, -1, 0, 1; y-intercept: -6
Mathematics