It depends on the total number of marbles in the bag and the number of yellow marbles in the bag
Answer:
30% of 210 is 63
Step-by-step explanation:
Correct answer is B. X<3
Explanation: I used photo math
Answer:
All the intervals that contain the number
are solution of the problem
Step-by-step explanation:
we know that
The equation of a vertical parabola into vertex form is equal to
![f(x)=a(x-h)^{2}+k](https://tex.z-dn.net/?f=f%28x%29%3Da%28x-h%29%5E%7B2%7D%2Bk)
where
(h,k) is the vertex of the parabola
In this problem we have
![f(x)=(x+3)(x+1)](https://tex.z-dn.net/?f=f%28x%29%3D%28x%2B3%29%28x%2B1%29)
Convert to vertex form
![f(x)=x^{2}+x+3x+3](https://tex.z-dn.net/?f=f%28x%29%3Dx%5E%7B2%7D%2Bx%2B3x%2B3)
![f(x)=x^{2}+4x+3](https://tex.z-dn.net/?f=f%28x%29%3Dx%5E%7B2%7D%2B4x%2B3)
Group terms that contain the same variable, and move the constant to the opposite side of the equation
![f(x)-3=x^{2}+4x](https://tex.z-dn.net/?f=f%28x%29-3%3Dx%5E%7B2%7D%2B4x)
Complete the square. Remember to balance the equation by adding the same constants to each side.
![f(x)-3+4=x^{2}+4x+4](https://tex.z-dn.net/?f=f%28x%29-3%2B4%3Dx%5E%7B2%7D%2B4x%2B4)
![f(x)+1=x^{2}+4x+4](https://tex.z-dn.net/?f=f%28x%29%2B1%3Dx%5E%7B2%7D%2B4x%2B4)
Rewrite as perfect squares
![f(x)+1=(x+2)^2](https://tex.z-dn.net/?f=f%28x%29%2B1%3D%28x%2B2%29%5E2)
-------> equation in vertex form
The vertex is the point ![(-2,-1)](https://tex.z-dn.net/?f=%28-2%2C-1%29)
The x-coordinate of the vertex is ![-2](https://tex.z-dn.net/?f=-2)
Answer:24 cards - 20%= 19.2
Step-by-step explanation: