3.3 hope this helps thanks
Answer:
Step-by-step explanation:
Given
There are 9 people going on a trip
They purchased coach tickets =$160
first class tickets =$1180
total budget to spend = $4500
Let coach tickets=X
So first class tickets=9-x
160x+1180(9-x)=4500
160+10620-1180x=4500
160x-1180x=4500-10620
-1020x=-6120
X=6120/1020
X=6
So answer
Coach tickets=X=6
First class tickets=(9-x)
=3.
The law of cosines states that, if
is the angle between sides b and c,
![a^2 = b^2+c^2-2bc\cos(\alpha)](https://tex.z-dn.net/?f=a%5E2%20%3D%20b%5E2%2Bc%5E2-2bc%5Ccos%28%5Calpha%29)
So, plugging our values, we have
![a^2 = 16+16-2\cdot 4\cdot 4\cdot\cos\left(\dfrac{\pi}{4}\right)](https://tex.z-dn.net/?f=a%5E2%20%3D%2016%2B16-2%5Ccdot%204%5Ccdot%204%5Ccdot%5Ccos%5Cleft%28%5Cdfrac%7B%5Cpi%7D%7B4%7D%5Cright%29)
This is equal to
![a^2 = 32-32\cdot\dfrac{\sqrt{2}}{2} = 32-16\sqrt{2}](https://tex.z-dn.net/?f=a%5E2%20%3D%2032-32%5Ccdot%5Cdfrac%7B%5Csqrt%7B2%7D%7D%7B2%7D%20%3D%2032-16%5Csqrt%7B2%7D)
The answer to the question
Answer: Simple and best practice solution for 3.3x-4=-13.9 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.
Step-by-step explanation: Idk how to explain I’m just smart so I can figure it out