Answer:
![\sqrt[9]{a^{4}}](https://tex.z-dn.net/?f=%5Csqrt%5B9%5D%7Ba%5E%7B4%7D%7D)
Step-by-step explanation:
To convert a fraction form into a radical form you need to know that the denominator will be the root index and the numerator will be the exponent into the root. For the case of four ninths:
![a^{\frac{4}{9}} = \sqrt[9]{a^{4}} .](https://tex.z-dn.net/?f=a%5E%7B%5Cfrac%7B4%7D%7B9%7D%7D%20%3D%20%5Csqrt%5B9%5D%7Ba%5E%7B4%7D%7D%20.)
Step-by-step explanation:
you can let
- x = 0 => y = -3, point ( 0,-3)
- y = 0 => x = -15/2 = -7.5, point (-7.5,0)
then connect this 2 points
If the diameter is 12 inches, the radius is 6 inches, because the radius is half the diameter.
Given the formula

we have

When you fold the circle in half, the resulting figure has half the area.
So, you start with a circle with area 
You fold it once and you have a semicircle with area 
You fold it twice and you have a quarter circle with area 
24 pine trees in equal rows, with the number of trees in each row being 10 or more than the number of rows.
Hugo could have planted 12 trees in 2 rows.