Answer:
A.) A= 20h+100 B= 40h
B.) 3hours - Company A(cost more) 5 hours- Both cost the same amount 10 hours- Company B (cost more)
C.) 6 hours
Step-by-step explanation:
Answer:
The answer is y = 4x - 8.
Step-by-step explanation:
☆Remember: ![m = \frac{y_2 - y_1}{x_2 - x_1}](https://tex.z-dn.net/?f=m%20%3D%20%20%5Cfrac%7By_2%20-%20y_1%7D%7Bx_2%20-%20x_1%7D%20)
☆Slope-intercept: ![y = mx + b](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b)
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☆We need to find the slope first. So just plug in according to the slope formula!
![m = \frac{0 - 8}{2 - 4} = \frac{ - 8}{ - 2} = 4](https://tex.z-dn.net/?f=m%20%3D%20%20%5Cfrac%7B0%20-%208%7D%7B2%20-%204%7D%20%20%3D%20%20%5Cfrac%7B%20-%208%7D%7B%20-%202%7D%20%20%3D%204)
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☆Now we need to find the y-intercept. We are going to plug in the slope and a set of coordinates to find the y-intercept.
![y = mx + b \\ 8 = 4(4) + b \\ 8 = 16 + b \\ \frac{ - 16 = - 16 \: \: \: \: \: \: \: \: \: \: \: \: }{ - 8 = b \: \: \: \: \: \: \: \: \: \: \: \: \: \: }](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b%20%5C%5C%208%20%3D%204%284%29%20%2B%20b%20%5C%5C%208%20%3D%2016%20%2B%20b%20%5C%5C%20%20%20%5Cfrac%7B%20-%2016%20%3D%20%20-%2016%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%7D%7B%20-%208%20%3D%20b%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%7D%20)
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☆Now all we need to do is plug in and we are done!
![y = 4x - 8](https://tex.z-dn.net/?f=y%20%3D%204x%20-%208)
▪Happy To Help <3
Answer:
Step-by-step explanation:
lets remember which are the prime numbers 1 to 81
2,3,5,7,23,29,31,37,....83
the only way you can write 81 as a product of its prime factors are
3x3x3x3=3^4
Answer:
Maybe A.
Please mark as brainliest