5a^2 - 6a -4 - (<span>-7a^2 + 3a -9)
=</span>5a^2 - 6a -4 + 7a^2 - 3a + 9
=12a^2 - 9a + 5
answer
12a^2 - 9a + 5
You can go on there website and get there answers on there. Search up delta math answer key, it will lead you that there cite and click on which lesson your in then skip questions until you find the one your at
Well the lowest common multiple (LCM) is 2.2*5, which is 11. Hope this helps and give brainliest if it does, thanks!
It’s c I think sorry if I’m wrong, I did this lesson long time ago
If he hikes another 2 km, he will be halfway there.
17+2= (1/2)x
19=(1/2)x
38=x
Final answer: The total length of the hike is 38 km
