Provide an appropriate response.Describe the characteristics of an augmented matrix in triangular (or echelon) form.
A. The matrix has ones on the main diagonal and zeros everywhere else.
B. The matrix has ones on the main diagonal and zeros above the main diagonal.
C. The matrix has ones on the main diagonal and zeros below the main diagonal.
D. The matrix has zeros on the main diagonal and ones below the main diagonal.
Answer: C
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Compute the gradient of the function at the given point.
A. ?f = -12i - 80j B. ?f = -18i - 80j C. ?f = -36i - 80j D. ?f = -12i + 10j
Match the given equation with one of the graphs.(y + 2)2 = 4(x + 4)
A. 
B. 
C. 
D. 
Provide an appropriate response.For the pair of similar triangles, name the corresponding sides and angles.
A. ?A ? ?F, ?B ? ?D, ?C ? ?X; 
? 
, 
? 
, 
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B. ?A ? ?X, ?B ? ?D, ?C ? ?F; 
? 
, 
? 
, 
? 
C. ?A ? ?F, ?B ? ?X, ?C ? ?D; 
? 
, 
? 
, 
? 
D. ?A ? ?D, ?B ? ?F, ?C ? ?X; 
? 
, 
? 
, 
? 
Use the MACRS depreciation rates table to solve the problem. Round to the nearest dollar.MACRS Depreciation Rates 
Respiratory Care, Inc. purchased new packaging equipment (5-year property) at a cost of $8,150. Find the book value at the end of 4 years.
A. $2,546 B. $1,408 C. $2,347 D. $2,556