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Aleksandr-060686 [28]
2 years ago
7

Plz help I need help

Mathematics
2 answers:
guajiro [1.7K]2 years ago
5 0

Answer:

The ratios are proportional ratios

Soloha48 [4]2 years ago
4 0

Answer:

Step-by-step explanation:

The ratios are proportional

\dfrac{5}{12}=\dfrac{5*2}{12*2}=\dfrac{10}{24}

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Evaluate the following expression.<br> 6 x [(16 + 29) / 9 -3]
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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
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