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Mathematics 16 Online
OpenStudy (anonymous):

evaluate the expression. r=<5,9,-4> v=<3,3,-8> w=<9,-6,-1>

OpenStudy (anonymous):

I don't see any expression that need evaluating.

OpenStudy (anonymous):

v-w

OpenStudy (anonymous):

Do you know how to subtract vectors?

OpenStudy (anonymous):

Not at all. How do I do this?

OpenStudy (anonymous):

To subtract vectors, you subtract each component.

OpenStudy (anonymous):

The result of each subtraction is the new component.

OpenStudy (anonymous):

What do I do with the r values?

OpenStudy (anonymous):

\[ <1,2> - <5,2> = <1-5,2-2> = <-4,0> \]

OpenStudy (anonymous):

Since r isn't in the expression, we don't need to worry about it.

OpenStudy (anonymous):

so the new values would be <-6,9,-7>??

OpenStudy (anonymous):

Yes.

OpenStudy (anonymous):

The answers choices are" <-15, -27, -32> 0 17 <27,-18,8>

OpenStudy (anonymous):

How do I change the format of my answer to match one of those?

OpenStudy (anonymous):

You don't. The expression is wrong of the vectors are wrong.

OpenStudy (anonymous):

Then what am I supposed to do with an unlisted answer? This is quite the conundrum

OpenStudy (anonymous):

Double check the problem.

OpenStudy (anonymous):

Ah I see my mistake. Thanks for your help sir!!!

OpenStudy (anonymous):

|dw:1379225241204:dw|

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