Solve the system of equations. If the system has no solution, say that it is inconsistent.

A. y = - x + 12, where x is any real number
or {(x, y) | y = - x + 12, where x is any real number}
B. x = 0, y = 12; (0, 12)
C. x = -1, y = ;
D. inconsistent

Answer: A

Mathematics

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Find a matrix A and a column matrix B that describe the following tables involving credits and tuition costs. Find the matrix product AB, and interpret the significance of the entries of this product.?

A.
AB =
Tuition for Student 1 is $1050, tuition for Student 2 is $821, and tuition for Student 3 is $772.
B.
AB =
Tuition for Student 1 is $1061, tuition for Student 2 is $805, and tuition for Student 3 is $770.
C.
AB =
Tuition for Student 1 is $1044, tuition for Student 2 is $821, and tuition for Student 3 is $748.
D.
AB =
Tuition for Student 1 is $1051, tuition for Student 2 is $819, and tuition for Student 3 is $762.