Nope, those lines are not parallel.
Answer:
A) But if anyone thinks this they should go back to preschool
Step-by-step explanation:
On any other value of x you would take the numerators and denominators and multiply them across:
![\frac{x}{3}*\frac{6}{x}=\frac{x*6}{x*3}=\frac{6}{3} =2](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B3%7D%2A%5Cfrac%7B6%7D%7Bx%7D%3D%5Cfrac%7Bx%2A6%7D%7Bx%2A3%7D%3D%5Cfrac%7B6%7D%7B3%7D%20%3D2)
But, this literally does not make since considering the fact that you cannot divide any value by zero. Try it, it won't work. If we plug these into a trusty dusty calculator, we get this:
![\frac{0}{3}=0\\\\\frac{6}{0}=DOMAINERROR](https://tex.z-dn.net/?f=%5Cfrac%7B0%7D%7B3%7D%3D0%5C%5C%5C%5C%5Cfrac%7B6%7D%7B0%7D%3DDOMAINERROR)
0*DOMAINERROR= You can't do it.
There are other reasons why you can't divide by zero, I would suggest looking them up on YT and learning about them.
I would answer A, but the person who wrote this question just wasn't focusing when they wrote the question.
Answer:
The first one
Step-by-step explanation:
Since only the first session is $10, it wouldn't be 10x.
The second session is $5, and it will never be $10 again, so $5 sessions are unlimited which would be 5x.
So the answer is y = 10 + 5x
(sorry if i didnt explain well)
Answer:
52
Step-by-step explanation:
5x-22+4x+4 = 90
9x-18=90
9x=108
x=12
4*12+4
52
Answer:
<h2>a = 16</h2>
Step-by-step explanation:
Look at the picture.
The formula of an area of a trapezoid is:
![A=\dfrac{b_1+b_2}{2}\cdot h](https://tex.z-dn.net/?f=A%3D%5Cdfrac%7Bb_1%2Bb_2%7D%7B2%7D%5Ccdot%20h)
- bases
- height
We have:
![A=128,\ b_1=a+2,\ b_2=a-2,\ h=8](https://tex.z-dn.net/?f=A%3D128%2C%5C%20b_1%3Da%2B2%2C%5C%20b_2%3Da-2%2C%5C%20h%3D8)
Substitute:
![128=\dfrac{a+2+a-2}{2}\cdot8\\\\128=\dfrac{2a}{2}\cdot8](https://tex.z-dn.net/?f=128%3D%5Cdfrac%7Ba%2B2%2Ba-2%7D%7B2%7D%5Ccdot8%5C%5C%5C%5C128%3D%5Cdfrac%7B2a%7D%7B2%7D%5Ccdot8)
<em>divide both sides by 8</em>
![16=a\to a=16](https://tex.z-dn.net/?f=16%3Da%5Cto%20a%3D16)