1. Solve the following system of equations, using matrix inversion method. 2x -- 4y + 5z = 36
-3x + 5y + z = 7
5x + 3y - 8z = -31​

What is the reflection image of (5,-3) across the line y = -x?

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.

Adan has decided to purchase an $9000 car. he plans on putting 20% down toward the purchase and financing the rest at 7.9% interest rate for 3 years. find his monthly payment a) $225.29 b) $298.81 c) $204.78 d) $236.89