The answer is B) 1/(-2)^6
119 I believe since a straight angle sums up to 180
Answer:
10.25%
Step-by-step explanation:
imagine the number is 100. Increase that by 5% so multiply 100 by 105%. This equals 105. Then increase 105 by 5% so multiply 105 by 105%. This equals 110.25. The original number was 100 so 110.25-100= 10.25. 10.25/100= 10.25%
Hope this is correct :) I'm rly not sure now
Answer:
magnitude =3 unit vector ![\frac{2i-2j+k}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B2i-2j%2Bk%7D%7B3%7D)
Step-by-step explanation:
We have given source point ![(x_1,y_1,z_1)=(2,8,7)](https://tex.z-dn.net/?f=%28x_1%2Cy_1%2Cz_1%29%3D%282%2C8%2C7%29)
And the field point ![(x_2,y_2,z_2)=(4,6,8)](https://tex.z-dn.net/?f=%28x_2%2Cy_2%2Cz_2%29%3D%284%2C6%2C8%29)
Resultant vector ![=(x_2-x_1)i+(y_2-y_1)j+(z_2-z_1)k=(4-2)i+(6-8)j+(8-7)k=2i-2j+k](https://tex.z-dn.net/?f=%3D%28x_2-x_1%29i%2B%28y_2-y_1%29j%2B%28z_2-z_1%29k%3D%284-2%29i%2B%286-8%29j%2B%288-7%29k%3D2i-2j%2Bk)
The resultant vector ![=2i-2j+k](https://tex.z-dn.net/?f=%3D2i-2j%2Bk)
Magnitude of the vector ![=\sqrt{2^2+2^2+1^2}=3](https://tex.z-dn.net/?f=%3D%5Csqrt%7B2%5E2%2B2%5E2%2B1%5E2%7D%3D3)
Now we have to find the unit vector
So unit vector ![=\frac{2i-2j+k}{3}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B2i-2j%2Bk%7D%7B3%7D)