Solve the system of equations using the inverse of the coefficient matrix.

A. x = -3, y = 4
B. x = -4, y = 3
C. x = 3, y = -4
D. x = 4, y = -3


Answer: D

Mathematics

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A.
B.
C.
D.

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Solve the problem.A group of campers recorded the daily low temperatures for the seven days of their trip. The temperatures they recorded are given in the table. Calculate the average daily low temperature for the seven-day period, rounded to the nearest integer. 

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