First, we are going to add these two vectors.
then
We are going to calculate the argument of the result vector.
<span>u= <4,-1> and v= <3,5>
![u+v=\ \textless \ 4,-1\ \textgreater \ +\ \textless \ 3,5\ \textgreater \ =\ \textless \ 7,4\ \textgreater \](https://tex.z-dn.net/?f=u%2Bv%3D%5C%20%5Ctextless%20%5C%204%2C-1%5C%20%5Ctextgreater%20%5C%20%20%2B%5C%20%5Ctextless%20%5C%203%2C5%5C%20%5Ctextgreater%20%5C%20%3D%5C%20%5Ctextless%20%5C%207%2C4%5C%20%5Ctextgreater%20%5C%20)
![|u+v|=|\ \textless \ 7,4\ \textgreater \ |= \sqrt{7^2+4^2} = \sqrt{65}](https://tex.z-dn.net/?f=%7Cu%2Bv%7C%3D%7C%5C%20%5Ctextless%20%5C%207%2C4%5C%20%5Ctextgreater%20%5C%20%7C%3D%20%5Csqrt%7B7%5E2%2B4%5E2%7D%20%3D%20%5Csqrt%7B65%7D%20)
</span><span>
</span>
<span>>>rounded to the nearest tenth:
![\sqrt{65} =8.1](https://tex.z-dn.net/?f=%20%5Csqrt%7B65%7D%20%3D8.1)
</span>
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Answer:
0.7, 70/100 or 7/10
Step-by-step explanation:
70 squares are shaded.
So 70/100 of all squares are shaded
Y = - 2/3x + c , ( -9 , 7 )
7 = - 2/3 ( - 9 ) + c
c = 13
y = - 2/3x + 13
i am a mathematics teacher. if anything to ask please pm me
Answer:x=-7
Step-by-step explanation: