7. Systems of Equations & Matrices

In Exercises 1–18, solve each system by the substitution method. x+y=1, (x-1)^2+(y+2)^2=10

In Exercises 1–18, solve each system by the substitution method. x+y=1, x^2+xy-y^2=-5

In Exercises 1–18, solve each system by the substitution method. xy=3, x^2+y^2=10

In Exercises 1–18, solve each system by the substitution method. y^2=x^2-9, 2y=x-3

In Exercises 1–18, solve each system by the substitution method. xy=6, 2x-y=1

In Exercises 1–18, solve each system by the substitution method. x^2+y^2=25, x-y=1

In Exercises 1–18, solve each system by the substitution method. y=x^2-4x-10, y=-x^2-2x+14

In Exercises 1–18, solve each system by the substitution method. x+y=2, y=x^2-4x+4

In Exercises 1–18, solve each system by the substitution method. x+y=2, y=x^2−4

The perimeter of a rectangle is 26 meters and its area is 40 square meters. Find its dimensions.

In Exercises 25–35, solve each system by the method of your choice. This is a piecewise function, refer to textbook problem.

In Exercises 25–35, solve each system by the method of your choice. This is a piecewise function, refer to textbook problem.

In Exercises 25–35, solve each system by the method of your choice. This is a piecewise function, refer to textbook problem.

Answer each of the following. When appropriate, fill in the blank to correctly complete the sentence. The following nonlinear system has two solutions, one of which is (3,____). x + y = 7 x^2 + y^2 = 25

Answer each of the following. When appropriate, fill in the blank to correctly complete the sentence. The following nonlinear system has two solutions, one of which is (___, 3).2x + y = 1x^2 + y^2 = 10