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Mathematics 7 Online
OpenStudy (vera_ewing):

What is the Pythagorean Theorem?

OpenStudy (the_fizicx99):

\(\ a^2 + b^2 = c^2 \)

OpenStudy (kc_kennylau):

For any right triangle ABC where B is the right angle, AB^2+BC^2=AC^2

OpenStudy (the_fizicx99):

C being the hypotenuses

OpenStudy (anonymous):

not to be pedantic, but \(a^2+b^2=c^2\) is an equation, not a theorem as an equation it is either true or false, depending on the values of \(a,b,c\) for example \(3^2+4^2=5^2\) is true, while \(5^2+6^2=7^2\) is false

OpenStudy (vera_ewing):

@satellite73 thanks for that clarification! can you help with #5 on the link above? :)

OpenStudy (the_fizicx99):

True, but normally C has to be greater for it to be correct. It's the longer part of the triangle's leg.

OpenStudy (anonymous):

looks like \[4x+14=6x\]

OpenStudy (anonymous):

that is wrong, i mean \[4x+14+31=6x\]

OpenStudy (the_fizicx99):

Um, wouldn't it be 4x + 45 = 6x?

OpenStudy (anonymous):

your job is to solve for \(x\) which is pure algebra, no geometry

OpenStudy (vera_ewing):

ok...

OpenStudy (anonymous):

start by adding to get \[4x+45=6x\] subtract \(4x\) get \[45=2x\] then divide by 2

OpenStudy (vera_ewing):

sorry, i am on #6, now :)

OpenStudy (vera_ewing):

@satellite73

OpenStudy (vera_ewing):

No it isn't @Akash321

OpenStudy (anonymous):

how?

OpenStudy (vera_ewing):

idk, but i just looked up the answer and everyone said it is 135, A

OpenStudy (the_fizicx99):

._.

OpenStudy (the_fizicx99):

Satellite and I gave you the equation that you needed to solve for -- x. Do so and you'll get your answer

OpenStudy (anonymous):

work that equation n u will have 22.5, try it

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