Solve each equation for x.


Mathematics

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Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set. x + y = 78x + 8y = 56

A. Cramer's rule does not apply since D = 0; ? B. {(0, 0)} C. Cramer's rule does not apply since D = 0; {(7 - y, y)} D. {(1, 6)}

Mathematics

Determine the reference angle for the given angle.? = -183°

A. 177° B. 3° C. 87° D. 93°

Mathematics

Combine. Simplify the answer. - 

A.
B.
C.
D.

Mathematics

Solve the problem.Two pages that face each other in a book have 389 as the sum of their page numbers. What is the number of the page that comes first?

A. 195 B. 193 C. 194 D. 192

Mathematics