Respuesta :

mhanifa

Answer:

  • NM = 8

Step-by-step explanation:

Given rectangle JKLM

  • JN = x + 3 and JL = 3x + 1

JN = 1/2JL as diagonals bisect each other and N is the midpoint of JL.

Substitute and solve for x:

  • x + 3 = 1/2(3x + 1)
  • 2x + 6 = 3x + 1
  • 3x - 2x = 6 - 1
  • x = 5

Find JN

  • JN = 5 + 3 = 8

Looking at the options, we see that

  • NM  = JN = 8

Correct option is A

Answer:

NM=8 I tried it and got it right

Step-by-step explanation: