Answer:
Derived from the Pythagorean Theorem, the distance formula is used to find the distance between two points in the plane. The Pythagorean Theorem, a2+b2=c2 a 2 + b 2 = c 2 , is based on a right triangle where a and b are the lengths of the legs adjacent to the right angle, and c is the length of the hypotenuse.\:
<span> 100 m / 50 s = 2 m/s = 2 *3600 / 1000 = 7.2 k/h
hope it helps :)</span>
0.27 because if you put it like a whole fraction it would be 3/11 and as a decimal it is 0.27
Answer:
![\large\boxed{\dfrac{16}{81}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5Cdfrac%7B16%7D%7B81%7D%7D)
Step-by-step explanation:
The formula of an area of a circle:
![A=\pi r^2](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E2)
r - radius
Circle A:
radius = 4 ft. Substitute:
![A_A=\pi(4^2)=16\pi\ ft^2](https://tex.z-dn.net/?f=A_A%3D%5Cpi%284%5E2%29%3D16%5Cpi%5C%20ft%5E2)
Circle B:
radius = 9 ft. Substitute:
![A_B=\pi(9^2)=81\pi\ ft^2](https://tex.z-dn.net/?f=A_B%3D%5Cpi%289%5E2%29%3D81%5Cpi%5C%20ft%5E2)
The ratio:
![\dfrac{A_A}{A_B}=\dfrac{16}{81}](https://tex.z-dn.net/?f=%5Cdfrac%7BA_A%7D%7BA_B%7D%3D%5Cdfrac%7B16%7D%7B81%7D)