Answer:
If the area of a square is given by the polynomial 4x2 – 36x + 81, then which of the
following expressions represents the length of one side of the square?
A 2x -9
B
2x + 9
C 4x - 18
D 4x + 18
Step-by-step explanation:
answer 4x+18
Given:
Kim picked 250 pounds of pears yesterday and 287 pounds of pears today.
To find:
The percentage increase of amount of pears picked by Kim.
Solution:
We know that,
![\%\text{ increase}=\dfrac{\text{New value - Initial value}}{\text{Initial value}}\times 100](https://tex.z-dn.net/?f=%5C%25%5Ctext%7B%20increase%7D%3D%5Cdfrac%7B%5Ctext%7BNew%20value%20-%20Initial%20value%7D%7D%7B%5Ctext%7BInitial%20value%7D%7D%5Ctimes%20100)
![\%\text{ increase}=\dfrac{287-250}{250}\times 100](https://tex.z-dn.net/?f=%5C%25%5Ctext%7B%20increase%7D%3D%5Cdfrac%7B287-250%7D%7B250%7D%5Ctimes%20100)
![\%\text{ increase}=\dfrac{37}{25}\times 10](https://tex.z-dn.net/?f=%5C%25%5Ctext%7B%20increase%7D%3D%5Cdfrac%7B37%7D%7B25%7D%5Ctimes%2010)
![\%\text{ increase}=\dfrac{370}{25}](https://tex.z-dn.net/?f=%5C%25%5Ctext%7B%20increase%7D%3D%5Cdfrac%7B370%7D%7B25%7D)
![\%\text{ increase}=14.8](https://tex.z-dn.net/?f=%5C%25%5Ctext%7B%20increase%7D%3D14.8)
Therefore, the percentage increase of amount of pears picked by Kim is 14.8%.
Answer:17/2pi
Explained:
Just writing longer so I don’t have to go into details. If this is on khan academy you don’t have to show your work!
1. simplify 42/60 to 7/10 (42/60 divided by 2 is 21/30, 21/30 divided by 3 is 7/10)
2. if 10 x 10 = 100 than 7 x 10 = 70 so that would make it 70/100 which is 70%
so 70% is the answer
Hope this helps ;)
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