The percentage change is 20%
Answer:
![Height = 2.5](https://tex.z-dn.net/?f=Height%20%3D%202.5)
Step-by-step explanation:
Given
![Volume = 35](https://tex.z-dn.net/?f=Volume%20%3D%2035)
![Base=4 cm](https://tex.z-dn.net/?f=Base%3D4%20cm)
Required
Determine the height
The volume is calculated as:
![Volume = Height * Base\ Area](https://tex.z-dn.net/?f=Volume%20%3D%20Height%20%2A%20Base%5C%20Area)
Since, it has a triangular cross-section, the expression becomes:
![Volume = Height * \frac{1}{2} * Base * Length](https://tex.z-dn.net/?f=Volume%20%3D%20Height%20%2A%20%5Cfrac%7B1%7D%7B2%7D%20%2A%20Base%20%2A%20Length)
So, we have:
![35 = Height * \frac{1}{2} * 4 * 7](https://tex.z-dn.net/?f=35%20%3D%20Height%20%2A%20%5Cfrac%7B1%7D%7B2%7D%20%2A%204%20%2A%207)
![35 = Height * 14](https://tex.z-dn.net/?f=35%20%3D%20Height%20%2A%2014)
![Height = 35/14](https://tex.z-dn.net/?f=Height%20%3D%2035%2F14)
![Height = 2.5](https://tex.z-dn.net/?f=Height%20%3D%202.5)
Answer:5 x (25 + 125 )/ 2 = 750/2 m = 375 m.
Step-by-step explanation:
Answer:
5075 cents or 50.75
so sorry if it was wrong!