The following figures are similar. They are both the same shape, One is just bigger.
Answer: 275 cm
volume = length x width x height
v = 6.25 x 8 x 5.5
v = 275
Answer:
x = 0, -4 and -3.
Step-by-step explanation:
The given expression is "3x to the power of 3 + 21x squared + 36x = 0".
We can write this expression as follows :
![3x^3+21x^2+36x=0](https://tex.z-dn.net/?f=3x%5E3%2B21x%5E2%2B36x%3D0)
Taking 3x common.
![3x(x^2+7x+12)=0\\\\3x=0\ \text{and}\ (x^2+7x+12)=0](https://tex.z-dn.net/?f=3x%28x%5E2%2B7x%2B12%29%3D0%5C%5C%5C%5C3x%3D0%5C%20%5Ctext%7Band%7D%5C%20%28x%5E2%2B7x%2B12%29%3D0)
x = 3
![x^2+7x+12=0\\\\x^2+3x+4x+12=0\\\\x(x+3)+4(x+3)=0\\\\(x+4)(x+3)=0\\\\x=-4,-3](https://tex.z-dn.net/?f=x%5E2%2B7x%2B12%3D0%5C%5C%5C%5Cx%5E2%2B3x%2B4x%2B12%3D0%5C%5C%5C%5Cx%28x%2B3%29%2B4%28x%2B3%29%3D0%5C%5C%5C%5C%28x%2B4%29%28x%2B3%29%3D0%5C%5C%5C%5Cx%3D-4%2C-3)
Hence, the solution of the given quadratic equation are x = 0, -4 and -3.
1=5-4 because you have to substitute x and y (x,y) or (5,1)