Answer:
3(2-2) * 3(20-2)
3(0) * 3(18)
0 * 54 = 0
Step-by-step explanation:
3(2-2) * 3(20-2)
3(0) * 3(18)
0 * 54 = 0
Answer:
Option B. The equation has a maximum value with a y-coordinate of -21.
Step-by-step explanation:
The correct quadratic equation is
![y=-3x^{2}+12x-33](https://tex.z-dn.net/?f=y%3D-3x%5E%7B2%7D%2B12x-33)
This is a vertical parabola open downward (the leading coefficient is negative)
The vertex represent a maximum
Convert to vertex form
Factor -3
![y=-3(x^{2}-4x)-33](https://tex.z-dn.net/?f=y%3D-3%28x%5E%7B2%7D-4x%29-33)
Complete the square
![y=-3(x^{2}-4x+2^2)-33+12](https://tex.z-dn.net/?f=y%3D-3%28x%5E%7B2%7D-4x%2B2%5E2%29-33%2B12)
![y=-3(x^{2}-4x+4)-21](https://tex.z-dn.net/?f=y%3D-3%28x%5E%7B2%7D-4x%2B4%29-21)
Rewrite as perfect squares
![y=-3(x-2)^{2}-21](https://tex.z-dn.net/?f=y%3D-3%28x-2%29%5E%7B2%7D-21)
The vertex is the point (2,-21)
therefore
The equation has a maximum value with a y-coordinate of -21
Answer:
Ratio [Pam to her brother] = 2:5
Step-by-step explanation:
Given:
Pam saves every two dollar
Her brother saves fives dollar (For every two dollar)
Find:
Ratio [Pam saving and his brothers saving]
Computation:
It is given that if Pam saves $2 her brother saves $5
So,
Ratio [Pam to her brother] = 2/5
Ratio [Pam to her brother] = 2:5