Question

I need a check so just want some help​

Answer 1

Answer and Step-by-step explanation:

We are told that AB is equal to 3x + 1.

BC is then half of AB, or
`(3x+1)/(2)`.

AC is then 4 less than BC, or
`((3x+1)/(2) ) - 4`

To find the perimeter, we add all of these together.

3x + 3x/2 + 3x/2 = 6x

1 + 1/2 + (1/2 - 4) = -2

The final answer is 6x - 2.

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