Solve the system of linear equations.x + y = 4x - y = 14

A. (8, -4)
B. No solution
C. (-9, -4)
D. (9, -5)


Answer: D

Mathematics

You might also like to view...

Evaluate the expression without using a calculator.log 0.01

A. 2
B.
C. - 
D. -2

Mathematics

Solve the system of equations.2x - y + 5z = 33-6x - 3z = -484y + z = 34

A. {(5, 7, 6)} B. ? C. {(5, 6, 7)} D. {(-5, 7, 10)}

Mathematics

Graph the solution set of the system of inequalities or indicate that the system has no solution.y < -x + 4y > 3x - 3

A.

B.

C.

D.

Mathematics

Use a graphing calculator to plot the data and find the quadratic function of best fit.The number of housing starts in one beachside community remained fairly level until 1992 and then began to increase. The following data shows the number of housing starts since 1992 (x = 1). Use a graphing calculator to plot a scatter diagram. What is the quadratic function of best fit?

A. H(x) = -2.679x2 - 26.607x + 168.571 B. H(x) = 2.679x2 + 26.607x + 168.571 C. H(x) = -2.679x2 + 26.607x - 168.571 D. H(x) = -2.679x2 + 26.607x + 168.571

Mathematics