I think that x^2-9 (difference of 2 squares), 216x^3 +729 (sum of 2 cubes), and the other two are none
Not entirely sure
0.7x - 2 < 5.5
0.7x < 5.5 +2
0.7x < 7.5 Dividing both sides by 0.7
x < 7.5/0.7
x < 10.71.
That's it.
Answer:
![3^{7} = 2187](https://tex.z-dn.net/?f=3%5E%7B7%7D%20%3D%202187)
Step-by-step explanation:
The base of the log, 3, would be the base of the exponent. The =7 would be the exponent itself, so now we have
. The log of 2187 would be the = for the exponential form, so we have
as our final answer.
B is equal to 1/5. Hope I was able to help