Decide whether the matrices are inverses of each other. (Check to see if their product is the identity matrix I.)
and 
A. Yes
B. No
Answer: A
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Find the domain and range of the function represented in the graph.
A. Domain: [-3, 2) ; Range: [-2, 3) B. Domain: (-?, 3 ]; Range: (2, ?) C. Domain: (-3, 2 ]; Range: (-2, 3] D. Domain: [-2, 3); Range: [-3, 2)
Check the addition. If the answer is incorrect, find the correct answer.
1669
A. Incorrect; should be 1656 B. Incorrect; should be 1756 C. Correct D. Incorrect; should be 1679
Solve the inequality.90(x2 - 1) > 19x
A. 
B. 
or 
C. 
or 
D. 
Solve.A furniture company manufactures chairs and tables. Each chair requires 4 labor-hours to manufacture. Each table requires 3 labor-hours to manufacture. The company has 60 labor-hours available per day. These data are summarized by the linear inequality 
Graph an inequality that describes when the labor-hours for making x chairs and y tables will not exceed the number of labor-hours the company has available.
A. 
B. 
C. 
D. 