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MA_775_DIABLO [31]
3 years ago
5

Given that r = ( 7, 3, 9) and v = ( 3, 7, -9), evaluate r + v

Mathematics
1 answer:
uysha [10]3 years ago
5 0

Answer:

b. (10,10,0)

Step-by-step explanation:

r+v can be evaluated if the vectors/matrices have the same dimensions.

These do. They are both 1 by 3 vectors.

Just add first to first in each.

Just add second to second in each.

Just add third to third in each.

Example:

(5,-5,6)+(1,2,3)

=(5+1,-5+2,6+3)

=(6,-3,9)

Done!

In general, (a,b,c)+(r,s,t)=(a+r,b+s,c+t).

r+v

=(7,3,9)+(3,7,-9)

=(7+3,3+7,9+-9)

=(10,10,0)

Done!

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Question

Combine like terms to create an equivalent expression.

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Step-by-step explanation:

Given;

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Combining like terms means bringing terms that have "t" together and separately, those that don't have "t" together. i.e

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Therefore, the equivalent expression is;

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