Do 7777. Circle the 7 in the thousands place and underline the 7 in the ones place
Answer:
Step-by-step explanation:
![N_{x}=970-\frac{3780}{x}\\\\=N^{i}_{x}=0-3780\frac{d}{dx}\frac{1}{x}\\\\=-3780(\frac{-1}{x^{2}})\\\\=\frac{3780}{x^{2}}\\\\N^{i}_{10}=\frac{3780}{100}\\\\=37.8\\\\N^{i}_{20}=\frac{3780}{400}\\\\=9.45](https://tex.z-dn.net/?f=N_%7Bx%7D%3D970-%5Cfrac%7B3780%7D%7Bx%7D%5C%5C%5C%5C%3DN%5E%7Bi%7D_%7Bx%7D%3D0-3780%5Cfrac%7Bd%7D%7Bdx%7D%5Cfrac%7B1%7D%7Bx%7D%5C%5C%5C%5C%3D-3780%28%5Cfrac%7B-1%7D%7Bx%5E%7B2%7D%7D%29%5C%5C%5C%5C%3D%5Cfrac%7B3780%7D%7Bx%5E%7B2%7D%7D%5C%5C%5C%5CN%5E%7Bi%7D_%7B10%7D%3D%5Cfrac%7B3780%7D%7B100%7D%5C%5C%5C%5C%3D37.8%5C%5C%5C%5CN%5E%7Bi%7D_%7B20%7D%3D%5Cfrac%7B3780%7D%7B400%7D%5C%5C%5C%5C%3D9.45)
There is an inverse relationship between the amount on advertisement and average number of bower boats
It will be 36 because 6 to the seceand power is 36 and then mines 10 = 26 and 2 to the 5 power is 10 so its 36
For this case we have the following expression:
![(2 \sqrt {27}) (3 \sqrt {32})](https://tex.z-dn.net/?f=%282%20%5Csqrt%20%7B27%7D%29%20%283%20%5Csqrt%20%7B32%7D%29)
We have to:
![27: 3 * 3 * 3: 3 ^ 2 * 3\\32: 16 * 2: 4 ^ 2 * 2](https://tex.z-dn.net/?f=27%3A%203%20%2A%203%20%2A%203%3A%203%20%5E%202%20%2A%203%5C%5C32%3A%2016%20%2A%202%3A%204%20%5E%202%20%2A%202)
Rewriting the expression and simplifying we have:
![(2 \sqrt {3 ^ 2 * 3}) (3 \sqrt {4 ^ 2 * 2}) =\\(2 * 3 \sqrt {3}) (3 * 4 \sqrt {2}) =\\(6 \sqrt {3}) (12 \sqrt {2}) =\\72 \sqrt {3 * 2} =\\72 \sqrt {6}](https://tex.z-dn.net/?f=%282%20%5Csqrt%20%7B3%20%5E%202%20%2A%203%7D%29%20%283%20%5Csqrt%20%7B4%20%5E%202%20%2A%202%7D%29%20%3D%5C%5C%282%20%2A%203%20%5Csqrt%20%7B3%7D%29%20%283%20%2A%204%20%5Csqrt%20%7B2%7D%29%20%3D%5C%5C%286%20%5Csqrt%20%7B3%7D%29%20%2812%20%5Csqrt%20%7B2%7D%29%20%3D%5C%5C72%20%5Csqrt%20%7B3%20%2A%202%7D%20%3D%5C%5C72%20%5Csqrt%20%7B6%7D)
Answer:
![72 \sqrt {6}](https://tex.z-dn.net/?f=72%20%5Csqrt%20%7B6%7D)