sarah05312
sarah05312 sarah05312
  • 04-05-2017
  • Mathematics
contestada

A garden has the shape of a right triangle with one leg 3 meters longer than the other. The hypotenuse is 3 meters less than twice the length of the shorter leg. What is the length of the shorter​ leg?

Respuesta :

maryam99
maryam99 maryam99
  • 04-05-2017
(2x-3)^2=(x+3)^2+x^2
4x^2+9-12x=x^2+9+6x+x^2
2x^2-18x=0
2(x^2-9x)=0
x^2-9x=0
x(x-9)=0
x-9=0
x=9
Answer Link

Otras preguntas

If you multiply a number by five and then subtract negative ten, the difference is negative thirty. What is the number?
The diagram shows a patio in the shape of a rectangle. The patio is 3.6m long and 3m wide. Mathew is going to cover the patio with paving slabs. Each paving sla
20% of my money is £2.55 What is 2/5 of it?
Work out the number that is halfway between 27 times 38 and 33 times 38.Show your working out aswell.
Put brackets in the expression below so that it's value is 45.024. 1.6 + 3.8 * 2.4 *4.2 (*= times )
What is a tonal collage? We learnt it in school BUT  I can't remember.
Put brackets in the expression below so that it's value is 45.024. 1.6 + 3.8 * 2.4 *4.2 (*= times )
Why does a pendulum eventually stop swinging?
What is the electron configuration of helium
How is carbon dioxide obtained?