Answer:
The area of the box is equal to 9^3 = 729 in^3
729<1000
Step-by-step explanation:
No since the volume of the box is less than the total volume of the cubes
The answer is <span>13584.1129633 which simplified is 13584 :)</span>
For this case we must indicate which of the equations shown can be solved using the quadratic formula.
By definition, the quadratic formula is applied to equations of the second degree, of the form:
![ax ^ 2+ bx+ c = 0](https://tex.z-dn.net/?f=ax%20%5E%202%2B%20bx%2B%20c%20%3D%200)
Option A:
![2x ^ 2-3x +10 = 2x + 21](https://tex.z-dn.net/?f=2x%20%5E%202-3x%20%2B10%20%3D%202x%20%2B%2021)
Rewriting we have:
![2x ^ 2-3x-2x+ 10-21 = 0\\2x ^ 2-5x-11 = 0](https://tex.z-dn.net/?f=2x%20%5E%202-3x-2x%2B%2010-21%20%3D%200%5C%5C2x%20%5E%202-5x-11%20%3D%200)
This equation can be solved using the quadratic formula
Option B:
![2x ^ 2-6x-7 = 2x ^ 2](https://tex.z-dn.net/?f=2x%20%5E%202-6x-7%20%3D%202x%20%5E%202)
Rewriting we have:
![2x ^ 2-2x ^ 2-6x-7 = 0\\-6x-7 = 0](https://tex.z-dn.net/?f=2x%20%5E%202-2x%20%5E%202-6x-7%20%3D%200%5C%5C-6x-7%20%3D%200)
It can not be solved with the quadratic formula.
Option C:
![5x ^ 2 + 2x-4 = 2x ^ 2](https://tex.z-dn.net/?f=5x%20%5E%202%20%2B%202x-4%20%3D%202x%20%5E%202)
Rewriting we have:
![5x ^ 2-2x ^ 2 + 2x-4 = 0\\3x ^ 2 + 2x-4 = 0](https://tex.z-dn.net/?f=5x%20%5E%202-2x%20%5E%202%20%2B%202x-4%20%3D%200%5C%5C3x%20%5E%202%20%2B%202x-4%20%3D%200)
This equation can be solved using the quadratic formula
Option D:
![5x ^ 3-3x + 10 = 2x ^ 2](https://tex.z-dn.net/?f=5x%20%5E%203-3x%20%2B%2010%20%3D%202x%20%5E%202)
Rewriting we have:
![5x ^ 3-2x ^ 2-3x + 10 = 0](https://tex.z-dn.net/?f=5x%20%5E%203-2x%20%5E%202-3x%20%2B%2010%20%3D%200)
It can not be solved with the quadratic formula.
Answer:
A and C
Point-slope form is
![y- y_{1} =m(x- x_{1} )](https://tex.z-dn.net/?f=y-%20y_%7B1%7D%20%3Dm%28x-%20x_%7B1%7D%20%29)
where y1 and x1 are your points from the coordinate and m is the slope. So yours would look like this: y-(-4)=-3(x-(-1)) or y + 4 = -3(x + 1)