Determine whether the matrix is in row-echelon form. If it is, then determine also whether it is in reduced row-echelon form.
A. Yes; yes
B. Yes; no
C. No
Answer: C
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Find fx, fy, and fz.f(x,y,z) = xe(x2 + y2 + z2)
A. fx = (1 + 2x2) e(x2 + y2 + z2); fy = 2xye(x2 + y2 + z2); fz = 2xze(x2 + y2 + z2) B. fx = (1 + 2x2) e(x2 + y2 + z2); fy = xe(x2 + y2 + z2); fz = xe(x2 + y2 + z2) C. fx = 2x2e(x2 + y2 + z2); fy = xye(x2 + y2 + z2); fz = 2xze(x2 + y2 + z2) D. fx = (1 + 2x2) e(x2 + y2 + z2); fy = xy2e(x2 + y2 + z2); fz = xz2e(x2 + y2 + z2)
Find the value of the objective function at each corner of the graphed region. Use this information to answer the question. 
Objective Functionz = 5x + 6yWhat is the minimum value of the objective function?
A. 60 B. 32 C. 33 D. 0
Answer the question or write an explanation.In an inequality, how do you determine which side of the boundary line to shade?
Fill in the blank(s) with the appropriate word(s).
Convert using dimensional analysis.
square yards to square inches
A. 105 in.2 B. 378 in.2 C. 13,608 in.2 D. 126 in.2