Answer:
The required answer is
.
Step-by-step explanation:
Consider the provided information.
We need to find the cube root of the expression
.
![\sqrt[3]{81}=\sqrt[3]{27\times 3}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B81%7D%3D%5Csqrt%5B3%5D%7B27%5Ctimes%203%7D)
Use the property: ![\sqrt[n]{ab} =\sqrt[n]{a}\times \sqrt[n]{b}](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Bab%7D%20%3D%5Csqrt%5Bn%5D%7Ba%7D%5Ctimes%20%5Csqrt%5Bn%5D%7Bb%7D)
![\sqrt[3]{81}=\sqrt[3]{27}\times \sqrt[3]{3}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B81%7D%3D%5Csqrt%5B3%5D%7B27%7D%5Ctimes%20%5Csqrt%5B3%5D%7B3%7D)
![\sqrt[3]{81}=3 \sqrt[3]{3}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B81%7D%3D3%20%5Csqrt%5B3%5D%7B3%7D)
Hence, the required answer is
.
Answer:
9
Step-by-step explanation:
12 x 3/4
36/4
9
So, there are 2 halves, now if the truck goes 90 mph on the second half, the average speed then will be