Find all values of the variable for which the rational expression is undefined.

A. -7
B. 7, 4
C. None
D. 7


Answer: D

Mathematics

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Solve the system. If there is an unlimited number of solutions, find one of them.3x + 2y + z = 42x - 3y - z = 55x + 12y + 5z = 2

A. x = -4, y = 5, z = -2
B. x = 4, y = 5, z = 2
C. Unlimited: x = , y = , z = 0
D. Inconsistent

Mathematics

Solve for x. Be sure to reduce your answer. Check your solution.-2x = 12

A. x = -6 B. x = 1 C. x = -14 D. x = 14

Mathematics

Find the zero of the linear function.f(x) = 3 - 7x

A.
B. - 
C. - 
D.

Mathematics

Graph the inequality on the number line.x < 

A.

B.

C.

D.

Mathematics