To minimize the cost, we take the straight distance from the refinery to the other side of the river as 2 km. Also, the 7 km will be the distance that has to be traveled by the pipeline in land. The total cost, C, is therefore,
total cost = (2 km)($800,000/km) + (7 km)($400,000 /km)
total cost = $4,400,000
Thus, the total cost of the pipeline is approximately $4,400,000.00.
Answer:
n^6 is the answer

![\frac{1}{\sqrt[4]{n} } * n^{\frac{25}{4} } = \frac{n^{\frac{25}{4} } }{n^{\frac{1}{4} } } = n^{\frac{25}{4} } - n^{\frac{1}{4} } = n^{6}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Csqrt%5B4%5D%7Bn%7D%20%7D%20%2A%20n%5E%7B%5Cfrac%7B25%7D%7B4%7D%20%7D%20%3D%20%5Cfrac%7Bn%5E%7B%5Cfrac%7B25%7D%7B4%7D%20%7D%20%7D%7Bn%5E%7B%5Cfrac%7B1%7D%7B4%7D%20%7D%20%7D%20%20%3D%20n%5E%7B%5Cfrac%7B25%7D%7B4%7D%20%7D%20-%20n%5E%7B%5Cfrac%7B1%7D%7B4%7D%20%7D%20%3D%20n%5E%7B6%7D)
Step-by-step explanation:
Answer: 8400 $
Explanation:
His original debt: money paid for 10 months + remaining debt
Assume X is his original debt
Then X= 10 • 150 + 6900
X= 1500+6900=8400$