Answer:
C) cannot be simplified
<u>Explanation</u>
We want to simplify the radicals:
![\sqrt[3]{7} - \sqrt[4]{7}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B7%7D%20%20-%20%20%5Csqrt%5B4%5D%7B7%7D%20)
We can rewrite this as exponents:
Since the base are the same but are subtracting, we do not have any rule of indices for subtracting unlike indices .
Therefore the expression cannot be simplified further.
Answer: 8
Step-by-step explanation:
We can use trigonometry to solve this:
If we call the angle at the top Ф then x is the opposite and 8 is the adjacent
Therefore we use Tan to solve this:
Tan Ф = opposite/adjacent
Tan 45 = X/8
1 = X/8
8 x 1 = X
Therefore X = 8
49+1+16=66
66/9=22/3
22/3 can also be expressed as 6 2/3
He will need 75ft. of sod. Just add up all of the ft. Measurements.
