Solve each system of equations using matrices. Show all work on separate paper. x-2y+3= 9
-x+3y = -4
2x - 5y + 5z = 17

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

How can constraints be used to model a real-world situation?