Answer:
B
Step-by-step explanation:
10x + 7 - 7x < 40
3x + 7 < 40
3x < 33
x < 11
3x²–243=0 —> 3 (x²–81) = 0 —>
x²–81=0 —> (x-9)(x+9)=0
x-9=0 —> x=9
x+9=0 —> x=–9
I hope I helped you^_^
Answer:
d. 1 3/4
Step-by-step explanation:
Answer:
around 1.36
Step-by-step explanation:
Answer:
Roman civilization lasted for 985 years.
Step-by-step explanation:
Given that Roman civilization began in 509 BC and ended in 476 A.
All we have to do is to subtract -579 from 476.
i.e.
![476 - (-509)](https://tex.z-dn.net/?f=476%20-%20%28-509%29)
![=476+509](https://tex.z-dn.net/?f=%3D476%2B509)
years
Thus, Roman civilization lasted for 985 years.