2.3.2 Checkup: Practice Problems Checkup Algebra 2 Sem 1

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the correct answer is 1: 2

step-by-step explanation:

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option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.