Solve the problem.Find the length of the unknown leg of the right triangle shown. Give an exact answer. 
A. 20 in.
B. in.19
C. 16 in.
D. 14 in.
Answer: C
Mathematics
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Find the inverse matrix of A.A = 
A. 
B. 
C. 
D. 
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Find the dot product v ? w.v = i + 2j, w = 6i - j
A. 8 B. -4 C. 4 D. 0
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Let x be a number. Translate the English phrase into a mathematical expression.The total of -45 and a number
A. -45 B. -45x C. 45 - x D. -45 + x
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