Three ventilation fans, each working alone, can clear the smoke out of a room in 12 hours, 16 hours, and 24 hours respectively. How long would it...
Answer:
-5
Step-by-step explanation:
There is no real solution
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️



Add sides 5


Subtract sides 2x


Divide sides by 4


_________________________________
CHECK :



Thus the solution is correct....
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Answer:
(5, -9).
Step-by-step explanation:
The vertex if (h, k).
So for 6(x - 5)^2 - 9 the vertex is the point (5, -9).