Answer:
4.74; Explanation is as follows
Step-by-step explanation:
When you raise a number to a fractional power, it is the same as taking a root of that number. Here's what I mean:
We know that .8 is the same as 4/5, so 7^.8 power is the same as 7^4/5 power!
[tex]7^\frac{4}{5} =\sqrt[5]{7^4}[/tex]
The above equation is the same as 7 raised to the .8th power! Now to solve, we do the following:
[tex]=\sqrt[5]{7^4} \\=\sqrt[5]{7*7*7*7} \\= \sqrt[5]{2401} \\=4.74[/tex]
So that is how you raise 7 to the .8th power!