I think 81 is composite and is 9 squared. 81 = 1 x 81, 3 x 27, or 9 x 9. Factors of 81: 1, 3, 9, 27, 81. Prime factorization: 81 = 3 x 3 x 3 x 3 which can also be written 3⁴. Since √81 = 9, a whole number, 81 is a perfect square. Even though it has other factors, the only multiplication fact we use is 9 x 9 = 81.
17/tan75 that is the answer
Answer:
she can buy 5 packs of cookies
Step-by-step explanation:
17.50/3.50=5
hope this helped ;D
Answer:
Option C) 113.0 feet squared
Step-by-step explanation:
We are given the following in the question:
Radius of circular garden = 4 feet
Length of path around garden = 2 feet
We have to find the total area of garden and path.
The garden and path together makes a bigger circle with radius
![R = 4 + 2 = 6\text{ Feet}](https://tex.z-dn.net/?f=R%20%3D%204%20%2B%202%20%3D%206%5Ctext%7B%20Feet%7D)
Area of garden and path =
![A = \pi R^2](https://tex.z-dn.net/?f=A%20%3D%20%5Cpi%20R%5E2)
Putting values, we get,
![A = 3.14\times (6)^2 = 113.04\\A \approx = 113.0\text{ square feet}](https://tex.z-dn.net/?f=A%20%20%3D%203.14%5Ctimes%20%286%29%5E2%20%3D%20113.04%5C%5CA%20%5Capprox%20%3D%20113.0%5Ctext%7B%20square%20feet%7D)
Thus, the correct answer is
Option C) 113.0 feet squared