Answer :1,2,4,8
Step-by-step explanation:
Answer:
I think the answer is
![x = \frac{9}{7}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B9%7D%7B7%7D%20)
Step-by-step explanation:
Reason :
![4x - 2 + 3x - 7 = 0 \\ collect \: like \: terms \\ 4x + 3x - 7 - 2 = 0 \\ 7x - 9 = 0 \\ 7x = 9 \\ x = \frac{9}{7}](https://tex.z-dn.net/?f=4x%20-%202%20%2B%203x%20-%207%20%3D%200%20%5C%5C%20collect%20%5C%3A%20like%20%5C%3A%20terms%20%5C%5C%204x%20%2B%203x%20-%207%20-%202%20%3D%200%20%5C%5C%207x%20-%209%20%3D%200%20%5C%5C%207x%20%3D%209%20%5C%5C%20x%20%3D%20%20%5Cfrac%7B9%7D%7B7%7D%20)
Therefore
![x = \frac{9}{7}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B9%7D%7B7%7D%20)
Break the parking lot into different polygons that you can easily find the area of. Then find the add all the areas of the diagram and multiply by 75 to get the amount of money needed.
4 minutes 34 seconds will takes to empty the tank, if the starts completely full and oil drained at a rate of 2.5
per minute.
Step-by-step explanation:
The given is,
Tank is shaped like a cylinder that is 3 ft long with a diameter of 2.2 ft.
Oil drained at a rate of 2.5
per minute.
Step:1
Time taken to dry the oil tank is,
T =
....................................(1)
Step:2
Volume of the oil is,
.................................................(2)
Where, r - Radius of Cylinder
![r = \frac{2.2}{2}](https://tex.z-dn.net/?f=r%20%3D%20%5Cfrac%7B2.2%7D%7B2%7D)
r = 1.1 ft
From eqn (1),
V =
×
× 3
= 11.40398 ![ft^{3}](https://tex.z-dn.net/?f=ft%5E%7B3%7D)
Step:3
From equation (1)
=
= 4.56
= 4.56 minutes
T = 4 minutes 34 seconds
Result:
Time taken to dry the oil tank is 4 minutes 34 seconds, if a cylinder is 3 ft long with a diameter of 2.2 ft and oil is drained at a rate of 2.5ft^3 per minute.