All we need is to put this form in the vertex form f(x) = (ax+b)^2 + c
So we have <span>f (x)= 3x^2+12x+11 ....
Let's complete the square (if you aware of it)
</span><span>
f(x)= 3x^2+12x+11 = 3(x^2+4x)+11 = 3(x^2+4x+4-4)+11
=</span><span> 3([x^2+4x+4]-4)+11 = 3[(x+2)^2-4]+11 =3</span><span>(x+2)^2 - 12 +11 = 3</span><span><span>(x+2)^2 -1
so our form would be:

Here is a parabola with vertex of (-2,-1) and with positive </span> slope (concave up)
</span>
I hope that
helps!
24/100 and 6/25 is are some of the equivalent form
Answer:
X=1
Step-by-step explanation:
We can write an equation like; 5 + 3x = 35
Steps to solve:
5 - 5 + 3x = 35 - 5
3x = 30
3x/3 = 30/3
x = 10
There were 10 cards per pack.
Best of Luck!