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Mathematics 19 Online
OpenStudy (anonymous):

Find the length of the missing side. The triangle is not drawn to scale. A) 35 B) 49 C) 7 D) 2

OpenStudy (anonymous):

OpenStudy (nikato):

You can apply the pythagoreom theorem again x^2 + 24^2 = 25^2

OpenStudy (anonymous):

is it A ?

OpenStudy (anonymous):

I think maybe its D ? lol idk im confusedd

OpenStudy (nikato):

So what's 24^2? And 25^2

OpenStudy (anonymous):

idk what this "^" means lol

OpenStudy (nikato):

Oh. It's exponents. You know that little number to the right of the big number. So 24 to the second power

OpenStudy (nikato):

http://www.mathsisfun.com/exponent.html I'm sorry I can't draw it out for you. Hope this will help

OpenStudy (anonymous):

24^2 = 576 25^2=625 is that right ?

OpenStudy (nikato):

Yes. Correct! So now you have x^2 + 576= 625 And subtract 576 on both sides and you get ?

OpenStudy (anonymous):

I think I get it now . lol is the answer C ?

OpenStudy (anonymous):

I did , 7^2(49) + 576=625 . did I do that right ?

OpenStudy (nikato):

Great! And yes C is correct After subtracting, you get x^2 = 49 Square root both sides x=7

OpenStudy (nikato):

When I say square root, it means like putting a radical sign over the 49. And we know 7^2=49

OpenStudy (anonymous):

I know that now , lol thank you . im not very good at math but you explained it in a easier way so this problem isn't actually as hard as I thought it was .

OpenStudy (nikato):

Yea. No problem. These aren't actually that hard after you've done a few and get a hang of it

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