Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-6, 0)}
B. {(-5, -6)}
C. no solution; ?
D. {(6, -1)}
Answer: A
Mathematics
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A. transactions B. compensating C. precautionary D. speculative E. lockbox
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Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.csc 85°
A. 1.06 B. -5.68 C. -5.62 D. 1.00
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If possible, find the matrix product.Given A = 
, find A7.
A.
A7 = 
B.
A7 = 
C.
A7 = 
D.
A7 = 
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Determine whether the given function is positive or negative for values of t in the specified quadrant. Quadrant IV, tan t
A. Negative B. Positive
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