tylerjackson16
tylerjackson16 tylerjackson16
  • 02-05-2017
  • Mathematics
contestada

I need to know what X y and z is

I need to know what X y and z is class=

Respuesta :

Аноним Аноним
  • 02-05-2017
You have 3 right-angled triangles so you apply the Pythagoras theorem

z^2 = 4^2 + y^2......(1)

x^2 = 6^2 + y^2 .....(2)            Also taking the large triangle:-

x^2 + z^2 = 10^2.......(3)

Subtracting equation  (1) from equation 2:-

x^2 - z^2 = 20 .......(4)

Adding (3) + (4):-

2x^2 = 120 
x^2 = 60 
x = sqrt 60

So , using equation (4)  z^2 =  x^2 - 20 = 60 - 20 = 40

z = sqrt 40  

now we can find y by substituting in equation (1)

y^2 = z^2 - 4^2 = 40 - 16 =  24

y = sqrt 24
Answer Link

Otras preguntas

Can someone pls find me a secondary source of Saladin and explain what it is pls i really need it
give three reasons why the british used direct rule in kenya?​
I was making Pancakes, and I made a very thin pancake and cooked for over 3 minutes on each side, would it be considered raw? (The heat was in between 3 and 4)
Everyone help me please!!!!!!!!! I will give you the brainliest if you answers my questions very good and excalty I needing your answers now
Where did homosapiens originate from?
Water is considered a polar molecule. What does this mean?
Please help me fast this question​
What are ways that people are like kaleidoscopes?
precisely give a unique definition of social studies
PLZZZ HELP! 1) A country with a significant shadow economy has a GDP of $1.5 billion. It is estimated that 50,000 illegal gambling transactions occurred, with