Answer:

Step-by-step explanation:
Hi there!
Because we're given the vertex of the parabola, we can determine its equation in vertex form:
where the vertex is 
Plug in the vertex (0,0)

Now, we must solve for a. Plug in the given point (-2,3) and solve for a:

Therefore, the value of a is
. Plug this back into
:

I hope this helps!
Answer:
H is not a solution
Step-by-step explanation:
plug each point into the equation and see which one does not work.
F(-3,6): 4(-3) + 3(6) = 6, -12 + 18 = 6, 6=6
G(0,2): 4(0) + 3(2) = 6, 6=6
H(1,-2): 4(1) + 3(-2) = 6, 4 - 6 =6, -2=6
J(3,-2): 4(3) + 3(-2) = 6, 12 -6 = 6, 6=6
H is not a solution
We know that a = b and c = 30
Since b + 30 = 90, we know b = 60.
That means a = 60
a = 60
b = 60
c = 30
Answer:
x=6
Step-by-step explanation:
-7x= -42
x= -42/-7
x=6
Answer:
2000 eels
Step-by-step explanation:
Let us represent the total estimate of the eels = x
She returns the 50 eels to the lake.
The next day Hannah catches 400 eels, of these 400 eels, 10 are ringed.
To solve the above question, we have the following:
50/x = 10/400
Cross Multiply
10x = 50 × 400
x = 50 × 400/10
x = 2000 eels
Therefore, the total estimate of the eels in the lake = 2000 eels