Use a matrix equation to solve the system of linear equations. left brace start 2 by 1 matrix 1st row 1st column 2nd row 1st column endmatrix x plus 2 y equals 8 nbsp 2 x plus 6 y equals 9 what is the inverse matrix?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%

Which best explains why this triangle is or is not a right triangle ?