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Mathematics 20 Online
OpenStudy (alexh107):

Quick vector question, need answer checked?

OpenStudy (alexh107):

OpenStudy (alexh107):

I attached the picture. I just need to know if my answer is right.

OpenStudy (sagewilson):

You are correct.

OpenStudy (alexh107):

Thank you!

OpenStudy (sagewilson):

No problem.

OpenStudy (alexh107):

Would you be able to check just one more?

OpenStudy (sagewilson):

Sure

OpenStudy (sagewilson):

First you need multiply each vector by the coefficient that is given, in this case that is the -8u and the 2v. It would look like this: -8<-5, -9>=<40,72>=-8u 2<6,8>=<12,32>=2v Then add the numbers in the x coordinate with each other and those in the y coordinate with each other.

OpenStudy (sagewilson):

It would look like this: <40 + 12> < 72 + 32>

OpenStudy (sagewilson):

Sorry I messed up it would be <40 + 12> < 72 + 16>

OpenStudy (alexh107):

Okay, so that would make it <52, 88> ?

OpenStudy (sagewilson):

Yes

OpenStudy (alexh107):

Okay, that makes sense. Thank you for all your help!

OpenStudy (sagewilson):

No problem :)

OpenStudy (sagewilson):

If you need any more help just mention me.

OpenStudy (alexh107):

Will do :)

OpenStudy (alexh107):

@SageWilson I submitted my assignment but it said the answer was wrong, could we try it again?

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