What Is the Length of the Blue Line Labeled R

Jun 8, 2003

14,387

477

126

• #1

Symbolic
What is the length of the blue line labeled r in the image below? Give your answer in terms of a and b.
__________________

And this one................

WebAssign will do simple calculations for you, using +, -, *, /, parentheses, and E-notation. For example, if a question asks for half the sum of 246 and 388, you can enter "(246+388)/2". For more complicated calculations you'll need to use a calculator and then enter your result. What is the product of 110 and 160?

Thanks,

Last edited: Jul 10, 2010

• #5

uh... sqrt(a^2+b^2)=r ... pythagorean theorem

• #10

There is no way this thread is serious

• #11

This is some kind of ATOT inside joke I don't get, isn't it?

Jun 8, 2003

14,387

477

126

• #12

I know that,but how do you write it the way they want you too?

• #13

I know that,but how do you write it the way they want you too?

r = sqrt(a^2 + b^2)
or
r^2 = a^2 + b^2

I'm still not convinced you're not trolling.

• #14

I know that,but how do you write it the way they want you too?

Surely not serious? Did you go to high school?

Jun 8, 2003

14,387

477

126

• #15

uh... sqrt(a^2+b^2)=r ... pythagorean theorem

Is this right?

Hey,I'm just a construction worker trying to help his kid with her homework.

Thanks...any help with the second one?

• #16

Dude, I just read the second question. Now I know you're trolling. You don't know what a fucking 'product' is?

Jun 8, 2003

14,387

477

126

• #18

Dude, I just read the second question. Now I know you're trolling. You don't know what a fucking 'product' is?

yes I do but its not just addition in this case

The answer is not 270

• #19

yes I do but its not just addition in this case

:facepalm;

• #20

Dude. In your house you have something called a computer. On it, your daughter can use something called the internet. On the internet there is a search engine called Google.

And if she's getting homework on this surely she was taught this in class?

r=(a^2+b^2)^0.5 or r=sqrt(a^2+b^2) will do it. And the second one...17600?

yes I do but its not just addition in this case

The answer is not 270

You don't know what a product is, do you?

• #21

yes 25 years ago....thanks guys.

fine, you havent done maths in 25 years, im not *that* surprised you dont know the pythagorean theorem

im surprised you dont know what multiplication is
im sorry that the person youre helping has severe learning difficulties

Jun 8, 2003

14,387

477

126

• #22

Dude. In your house you have something called a computer. On it, your daughter can use something called the internet. On the internet there is a search engine called Google.

And if she's getting homework on this surely she was taught this in class?

r=(a^2+b^2)^0.5 or r=sqrt(a^2+b^2) will do it. And the second one...17600?

You don't know what a product is, do you?

Thanks you I will try these answers on the computer she is using.

This is something she got for extra credit over the summer.

• #23

yes I do but its not just addition in this case

The answer is not 270

Jun 8, 2003

14,387

477

126

• #24

fine, you havent done maths in 25 years, im not *that* surprised you dont know the pythagorean theorem

im surprised you dont know what multiplication is
im sorry that the person youre helping has severe learning difficulties

It is one of those questions that you think it "can't be that easy". Rather then give the wrong answer , I figured I'd ask you smart YOUNG people.

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Source: https://forums.anandtech.com/threads/a-little-math-help-please.2088901/

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