Decide whether or not the matrices are inverses of each other.
and 
A. Yes
B. No
Answer: B
Mathematics
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Evaluate by first writing the statement in arithmetic form.Subtract 17.2 from 31.37.
A. 14.87 B. 14.17 C. -14.17 D. 14.09
Mathematics
Determine the size of the matrix.
A. 4 B. 4 × 1 C. 1 × 4 D. 1
Mathematics
Graph the system of inequalities, and find the coordinates of the vertices.3y + x ? 0,y + 2x ? 10,y ? 0
A. 
B. 
C. 
D. 
Mathematics
Find the length of the unknown side of the right triangle. In each case, a and b represent the lengths of the legs and c represents the length of the hypotenuse.
b = 9, c = 15; find a
A. 14 B. 12 C. 15 D. 11
Mathematics