Answer:

Step-by-step explanation:
We have been given the following expression;
-13/√x
In order to rationalize the denominator, we multiply the numerator and the denominator by √x;

Answer:
david was. 9 seconds faster than Justin.
Step-by-step explanation:
8.1-7.2= .9
He worked on the car for 4 hours. 35+7+7+7+7=63.
Answer:

Step-by-step explanation:
We are given our expression as
![\sqrt[3]{x^5y}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%5E5y%7D)
The property of exponent says that
![\sqrt[n]{x} =x^{\frac{1}{n}}](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Bx%7D%20%3Dx%5E%7B%5Cfrac%7B1%7D%7Bn%7D%7D)
Hence
![\sqrt[3]{x^5y}= (x^5y)^{\frac{1}{3}}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%5E5y%7D%3D%20%28x%5E5y%29%5E%7B%5Cfrac%7B1%7D%7B3%7D%7D)
Another property says

Hence

Hence option B is correct.
Height of Jaylah's fort = 243 inches
Step-by-step explanation:
Step 1:
Height of Cherie's fort = 181 inches
Height of Jaylah's fort = 62 inches taller than Cherie's fort
We need to find the actual height of Jaylah's fort
Step 2 :
Since we are given that Jaylah's fort is 62 inches taller than Cherie's fort the actual height of Jaylah's fort can be determined by adding the height of Jaylah's fort to that of Cherie's fort.
Hence
Height of Jaylah's fort = 181 + 62 = 243 inches
Step 3 :
Answer :
Height of Jaylah's fort = 243 inches