Answer:
9 feet
Step-by-step explanation:
Since it is a square, the length and width would be the same so the area would be a square number. Therefore, we can square root 81 feet, to get the answer of 9 feet.
Since 111, 777, and 999 are all bigger than 20, make them smaller. Take out one 1, two 7, and two 9 (5 numbers): 11 + 7 + 9 ≠ 20 (it equals 27). Now take out number 7. (If you take out number 1 [1+7+9=17, not 20] and of you take out number 9 [11+7=18, not 20].
11 + 9 = 20 (you took out numbers: 1, 7, 7, 7, 9 and 9 [6 numbers]).
Answer:
-9.09 is the correct answer
To solve this problem you must apply the proccedure shown below:
1. The arithmetic sequence is:
![an=a1+d(n-1)](https://tex.z-dn.net/?f=%20an%3Da1%2Bd%28n-1%29%20)
Where
is the nth termn,
is the first term,
is the common difference between the terms and
is the number of the term.
2. Based on the information given in the problem, you have:
![a1=20\\ d=1\\ n=12](https://tex.z-dn.net/?f=%20a1%3D20%5C%5C%20d%3D1%5C%5C%20n%3D12%20)
3. When you substitute these values into the formula, you obtain:
![an_{12} =20+(12-1)\\ a_{12}=31](https://tex.z-dn.net/?f=%20an_%7B12%7D%20%3D20%2B%2812-1%29%5C%5C%20a_%7B12%7D%3D31%20)
The answer is:
seats
Answer:
47.50\.50
Step-by-step explanation:
\-
stands for division