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nlexa [21]
2 years ago
14

Which statement correctly explains how Andre could find the solution to the following system of linear equations using eliminati

on?Multiply the first equation by –7 and the second equation by 8, and then subtract.Multiply the first equation by -7 and the second equation by 8, and then add.Multiply the first equation by 2 and the second equation by 9, and then add.Multiply the first equation by –2 and the second equation by 9, and then subtract.Which statement correctly explains how Andre could find the solution to the following system of linear equations using elimination?Multiply the first equation by –7 and the second equation by 8, and then subtract.Multiply the first equation by -7 and the second equation by 8, and then add.Multiply the first equation by 2 and the second equation by 9, and then add.Multiply the first equation by –2 and the second equation by 9, and then subtract.
Mathematics
1 answer:
grin007 [14]2 years ago
7 0

umm ,this is too long could you maybe putt it in smaller form so I can answer

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D-4=19
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Is -16/-2 rational or irrational?
mel-nik [20]

Answer:

Totally Rational

Step-by-step explanation:

-16/-2 would give you 8 which is a rational number

<em><u>I hope this helps, dont hesitate to ask for any question.Mark me as brainliest is appreciated.Tq!!</u></em>

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Can somebody please help me with this!? :(
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dmitriy555 [2]

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4 0
3 years ago
Let u= &lt;4,3&gt;. Find the unit vector in the direction of u, and write your answer in component form.
aksik [14]
Take the vector u = <ux, uy> = <4, 3>.

Find the magnitude of u:

||u|| = sqrt[ (ux)^2 + (uy)^2]

||u|| = sqrt[ 4^2 + 3^2 ]

||u|| = sqrt[ 16 + 9 ]

||u|| = sqrt[ 25 ]

||u|| = 5

To find the unit vector in the direction of u, and also with the same sign, just divide each coordinate of u by ||u||. So the vector you are looking for is

u/||u||

u * (1/||u||)

= <4, 3> * (1/5)

= <4/5, 3/5>

and there it is.

Writing it in component form:

= (4/5) * i + (3/5) * j

I hope this helps. =)
3 0
3 years ago
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