betsy81 betsy81
  • 21-06-2017
  • Mathematics
contestada

If the perimeter of the following triangle is 7x-2, what is the length of the unknown side?

If the perimeter of the following triangle is 7x2 what is the length of the unknown side class=
Relax

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 21-06-2017

perimeter = s+s+s

 so 7x-2 = (3x-9) + (x+7) + ?


3x-9 + x+7 = 4x-2

7x-2 - 4x-2 = 3x


remaining side is 3x

Answer Link
Аноним Аноним
  • 21-06-2017
 unknown side = 7x-2 - (3x - 9 + x + 7)
 unknown side = 7x - 2 -3x + 9 -x - 7
 unknown side = = 3x 

answer

 unknown side = 3x
Answer Link

Otras preguntas

An ion of zinc, Zn, has 28 electrons, 30 protons and 33 neutrons. What is its mass number
What will happen to the american revolution without john adams?
20 PTS AND WILL BE MARKED BRAINIEST IF CORRECT.
What helped galvanize the opposition to the war during the johnson administration?
If a cell has 18 chromosomes and undergoes mitosis, how many chromosomes would each daughter cell have?
Houng deposits $2,000 into an account that earns 4.2% interest compounded daily. What is the annual percentage yield to the nearest hundredth of a percent?
5 1/3 + (-3 9/18) show work please
the fda makes sure that food
Many fossil primates from the early oligocene have been found in the fayum depression a. True b. False
Use the Quadratic Formula to solve the equation. -2x^2 - 5x + 5 = 0