For this case we must find the product of the following expression:

We combine using the product rule for radicals:
![\sqrt [n] {a} * \sqrt [n] {b} = \sqrt [n] {ab}](https://tex.z-dn.net/?f=%5Csqrt%20%5Bn%5D%20%7Ba%7D%20%2A%20%5Csqrt%20%5Bn%5D%20%7Bb%7D%20%3D%20%5Csqrt%20%5Bn%5D%20%7Bab%7D)
So, we have:

We rewrite the 216 as

By definition of properties of powers and roots we have:
![\sqrt [n] {a ^ n} = a ^ {\frac {n} {n}} = a](https://tex.z-dn.net/?f=%5Csqrt%20%5Bn%5D%20%7Ba%20%5E%20n%7D%20%3D%20a%20%5E%20%7B%5Cfrac%20%7Bn%7D%20%7Bn%7D%7D%20%3D%20a)
Then, the expression is:

Answer:
Option D
Answer:
2/5 or 0.4
Step-by-step explanation:
rise over run is 20/50, simplifies to 2/5
Answer:
C
Step-by-step explanation:
Answer:
measure of Angle 7 would also be (3y - 8), by the alternate exterior angles theorem
Hope this helps!
I actually forgot what a trapezoid was and had to look it up.
Anyway, in an isosceles trapezoid the two legs are the same length, so we now have 3x-9=7x-10. Now it's simply a problem where you solve for x.
3x-9=7x-10
-9=4x-10
1=4x
x=1/4
Hope this helps :)