Answer:
< 15, - 21 >
Step-by-step explanation:
Multiply each of the components of the vectors by the scalar quantity, then add corresponding components of each vector.
9u + 2v
= 9 < 3, - 1 > + 2 < - 6, - 6 >
= < 27, - 9 > + < - 12, - 12 >
= < 27 - 12, - 9 - 12 >
= < 15, - 21 >
Answer:
23:2 is 25
![100 \div 25 = 4](https://tex.z-dn.net/?f=100%20%5Cdiv%2025%20%3D%204)
![23 \times 4 = 92](https://tex.z-dn.net/?f=23%20%5Ctimes%204%20%3D%2092)
![2 \times 4 = 8](https://tex.z-dn.net/?f=2%20%5Ctimes%204%20%3D%208)
Check the answer
![92 + 8 = 100](https://tex.z-dn.net/?f=92%20%2B%208%20%3D%20100)
![therefore \: copper = 92g \: \\ and \: tin = 8g](https://tex.z-dn.net/?f=therefore%20%5C%3A%20copper%20%3D%2092g%20%5C%3A%20%20%5C%5C%20and%20%5C%3A%20tin%20%3D%208g)
Step-by-step explanation:
At least I think that's how you do it
EF=3
9x-1=41+5x
x=15
2(10x-23)+106=360
Help with what? I don’t see anything
Answer:
5 feet
Step-by-step explanation:
Since you know that the ratio is 1:250, you set up a second ratio that looks like this:
x:1,250, where x is the unknown height of the model.
Then divide 1,250 by 250 bc the real building is 250 times larger than the model. 1,250/250=5, so the model should be 5 feet tall