i need some help with some questions

Question

princeevee · Answer

A carpenter builds a rectangular bookcase that is 50 cm long and 80 cm tall. The carpenter uses two braces along the diagonals to support the bookcase. 
What is the length of the one of the braces, to the nearest centimeter?

princeevee · Answer

@dude

princeevee · Answer

@umm

dude · Answer

|dw:1558129753145:dw|

Use pythagorean theorem

jhonyy9 · Answer

princeevee just use what above wrote dude

princeevee · Answer

from looking at this i take that it's somewhere in the 100's? or is this not to scale?

jhonyy9 · Answer

how you use the pythagora"s

d^2 = 80^2 +50^2

yes ?

jhonyy9 · Answer

and from these how you get the value of d ?

jhonyy9 · Answer

d = sqrt8900 = 94,339 cm

jhonyy9 · Answer

so not 100

princeevee · Answer

so 94?

jhonyy9 · Answer

yes 94 cm

princeevee · Answer

alright, thanks

jhonyy9 · Answer

np. but do you understand the way ?

princeevee · Answer

i do now

jhonyy9 · Answer

ok - good luck

or any help again ?

princeevee · Answer

though can you help with some more?

princeevee · Answer

Which equation is parallel to the line 2x+3y=9

y=32x−5

y=−32x−5

y=23x−5

y=−23x−5

jhonyy9 · Answer

please post it like a new question and tag me there

jhonyy9 · Answer

from this 2x+3y=9 what equation get for y = ?