The axis of symmety is the x value of the vertex
to find the x value of the vertex of ax^2+bx+c=0
x value=-b/2a
3x^2+bx+4=0
3/2=vertex
-b/2(3)=3/2
-b/6=3/2
times 6
-b=18/2
-b=9
times -1
b=-9
Answer:
but what we doo in this ur ques is half
The answer is -4 and 21
I am glad to help!
Answer:
2 hours and 15 minutes
Step-by-step explanation:
9 hours divided by 4 is 2 hours and 15 minutes
Then you can multiply 2 hours and 15 minutes by 3 to get 6 hours and 45 minutes which is Jena's time weeding the garden alone.
