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Mathematics 16 Online
OpenStudy (anonymous):

What is the distance between the points (-1, -9) and (4, -2)?

OpenStudy (anonymous):

Use distance formula \[d=\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2}}\]

OpenStudy (anonymous):

\[x_1 = -1\] \[x_2 = 4\] \[y_1 = -9\] \[y_2 = -2\]

OpenStudy (anonymous):

5,7?

OpenStudy (anonymous):

@waterineyes you read my mind.

OpenStudy (anonymous):

thank you guys so much! :)

OpenStudy (anonymous):

That is why posted what your mind was saying.. Ha ha ha..

OpenStudy (anonymous):

So what you get after solving this, just post your answer here so that we can check.. :) @mpj11

terenzreignz (terenzreignz):

@wackett1996 That's... okay... It's not that simple though, but you're nearly there... What you have acquired was the differences between their x and y-coordinates... now visualise a right triangle with those legs, and find the hypotenuse, using the Pythagorean Theorem|dw:1368018702718:dw|

OpenStudy (anonymous):

@terenzreignz He has quite the point. His way is much much easier if you want to do his way! \[A^{2}+B^{2}=C^{2}\] Where A=5 and B=7

OpenStudy (anonymous):

I wish my stupid geometry teacher could sound as smart as you and explain it so well

terenzreignz (terenzreignz):

@RoseDryer Maybe it has something to do with the distance formula being tied to the Pythagorean theorem? :D

OpenStudy (anonymous):

Hahaa, a lot of people tell me there teachers don't teach well. I don't let my teacher even try sometimes just for that reason, I just go to my public school and get things explained to me there.

OpenStudy (anonymous):

@terenzreignz Maybe! =D

OpenStudy (anonymous):

In that distance formula, we are just using the Pythagorean theorem.. \[Distance = \sqrt{A^2 + B^2}\]

OpenStudy (anonymous):

Where : \(A = (x_2 - x_1)\) and \(B = (y_2 - y_1)\).

OpenStudy (anonymous):

@waterineyes sehr wahr

OpenStudy (anonymous):

What?

terenzreignz (terenzreignz):

Deutsch?

OpenStudy (anonymous):

I don't know this language.. May be he said that I am Right.. Ha ha ha...

terenzreignz (terenzreignz):

\[\Large \approx \text{very true}\]

OpenStudy (anonymous):

Oh Okay..

OpenStudy (anonymous):

@waterineyes I'm am not a he!

terenzreignz (terenzreignz):

@RoseDryer Wo kommst du her? :)

OpenStudy (anonymous):

So are you Heman if you are not a he!! ?? Ha ha ha..

OpenStudy (anonymous):

@waterineyes Trust me I'm plenty a woman.

OpenStudy (anonymous):

And I am just kidding this time..

OpenStudy (anonymous):

Woman?? Not even a girl?

OpenStudy (anonymous):

@terenzreignz Ich komme aus Ohio.

OpenStudy (anonymous):

@terenzreignz this is how we learned to say where are you from when I was in public. Woher kommst du?

terenzreignz (terenzreignz):

Bitte, ruf mich Terenz :) I just learned some German when I got bored online :D I actually thought you were a native speaker... and I may well be right, right? :D

OpenStudy (anonymous):

I actually dropped out of German II this year. I don't know much. But I do know the verb you used 'ruf' means to call (on a phone). So you should have said Ich heiße _________ <--your name here. Ich heiße means in a translation on google mean My name, in real life it means I am to be called.

OpenStudy (anonymous):

And the full verb of ruf is rufen. Which mean to call (on a phone) or to call out.

terenzreignz (terenzreignz):

I thought to call on the phone was anrufen... And so call me (on the phone) would be ruf mich an... but then again, what does a kid who brushed the internet know? :D I'll defer to your superior instruction :)

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