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smurfy14
 5 years ago
A 20 m ladder and a 15 m ladder were leaned against a building. The bottom of the longer ladder was 7 m farther from the building than the bottom of the shorter ladder, but both ladders reached the same distance up the building. Find the distance.
smurfy14
 5 years ago
A 20 m ladder and a 15 m ladder were leaned against a building. The bottom of the longer ladder was 7 m farther from the building than the bottom of the shorter ladder, but both ladders reached the same distance up the building. Find the distance.

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myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1i think its 12 let me show you my picture. first let me draw it better k?

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1smurfy what do you think?

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0it helps! except the bottom is cutoff..do you think you could repost the bottom part?

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1it just says what h=sqrt{22581}=sqrt{144}=12

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1i'm painting my nails

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0haha nice and oh ok thanks a bunch!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0if you call the angle between the ladders x then by law of cosines cos(x)=.8 making sin(x)=.6 and therefore the height is 20*.6=12 which i think was already given as an answer yes?

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0satellite73 ya i know but i dont get the whole cos sin thing and this makes more sense

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ahhh no trig for this one?

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1did my without law of cosines so you came up with a differnet way gj

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh i see your picture. which might in fact be essentially how one proves the law of cosines!

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1i might check tht out later how to prove that

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0kinda quiet tonight. maybe it is break time

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0smurfy check the other post you made of this I did it a simpler way

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1if you on break i might catch up with you

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i think that is inevitable.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0simpler than the law of cosines version i mean

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1i can help 200 people

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1rbsitale did you see my way?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0when you get to 1000 they will send you a bicycle

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0let me look at yours one sec

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0haha rb ya thats way easier than ur previous way :P

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes myininaya thats the way i did it the second time I wasnt thinking and used law of cosines first

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1oh yay great minds think alike

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1satellitle is brillant too :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0good I like mathematicians haha

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0have you seen any of watchmath's problems he posts some interesting ones here.

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1the calculus dream problem i got close on it i think

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i havent seen that one. I did a few of his others though and they were pretty fun.

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1doing my nails is so hard

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1i want to put an orange pi symbol on all of them after painting them blue

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0haha that would be cool

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1don't think it will work

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ive never seen anyone do that

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0take a exacto knife and cut out a small pi stencil then stencil it on

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1i need more finite space on my nails

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1okay if it works i will post my nails on here later

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0up for helping me with another word problem??

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1i will try to help with one hand

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0hope smurfy gets the idea of the solution

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0thanks mark; myin how did you break x^248x+560 at the end to get the whole 20 stuff???

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1we had 48=x+560/x i multyplied by x on both sides

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0do the law of hypotenuse: c^2 = a^2 + b^2 here the height is C, the base is b , and the opposite sides are 15 and 20 c^2 = 20^2 +(7+x)^2 the other one is c^2 = 15^2 + x^2 now equate them together c^2=c^2 we get 20^2 +(7+x)^2=15^2 + x^2 do the little algebra 20^2  15^2 + (7^2 +2*7*x)+x^2=x^2 cancel the x^2 175 + 49 +14x=0 oh here it is 14x=224 x=24/14 x=16 answer

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0in the end you went from x(x20)28(x20)=0 to (x20)(x28)=0 how did you know to di that?

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0mark its a rectangle so if ur right you need another answer

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1i just factor the long way we have x^248x+560=0 if you want you can use the quadratic formula or find factors of 560 that add up to be 48 so we have (x28)(x20)=0

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1lol you like totally get it?

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1ok wish me luck on my nails?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0any luck with your answer yet?..lol

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0good luck and have fun! you should attach a picture to this question when youre done and ill check it out :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the answer is x= 16.. you can check it by doing the hypotenuse law c^2= a^2 +b^2 c^2= 15^2 +(16)^2=481 the other one is c^2= 20^2 +(716)^2=481 checked
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