Answer:
<em>13 - 6y </em>
Step-by-step explanation:
8 - 4y + (-2y) + 5 = <em>13 - 6y</em>
Answer:
The answer is<u> "x = 0"</u>
<em>Step-by-step explanation:</em>
<em>Step-by-step explanation: </em><em>H</em><em>ope this answer is helpful</em><em>.</em><em>.</em><em>.</em>
<em> </em><em>Make me as brainliest...</em>
Your line is wrong from the start. But for the equation:
Answer:
The solutions are
and ![x=\frac{1-\sqrt{7}}{2}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B1-%5Csqrt%7B7%7D%7D%7B2%7D)
Step-by-step explanation:
we have
![0=-2x^{2}+2x+3](https://tex.z-dn.net/?f=0%3D-2x%5E%7B2%7D%2B2x%2B3)
Group terms that contain the same variable, and move the constant to the opposite side of the equation
![-3=-2x^{2}+2x](https://tex.z-dn.net/?f=-3%3D-2x%5E%7B2%7D%2B2x)
Factor the leading coefficient
![-3=-2(x^{2}-x)](https://tex.z-dn.net/?f=-3%3D-2%28x%5E%7B2%7D-x%29)
Complete the square. Remember to balance the equation by adding the same constants to each side.
![-3-0.5=-2(x^{2}-x+0.5^{2})](https://tex.z-dn.net/?f=-3-0.5%3D-2%28x%5E%7B2%7D-x%2B0.5%5E%7B2%7D%29)
![-3.5=-2(x^{2}-x+0.5^{2})](https://tex.z-dn.net/?f=-3.5%3D-2%28x%5E%7B2%7D-x%2B0.5%5E%7B2%7D%29)
Rewrite as perfect squares
![-3.5=-2(x-0.5)^{2}](https://tex.z-dn.net/?f=-3.5%3D-2%28x-0.5%29%5E%7B2%7D)
![7/4=(x-0.5)^{2}](https://tex.z-dn.net/?f=7%2F4%3D%28x-0.5%29%5E%7B2%7D)
square root both sides
![x-0.5=(+/-)\sqrt{\frac{7}{4}}](https://tex.z-dn.net/?f=x-0.5%3D%28%2B%2F-%29%5Csqrt%7B%5Cfrac%7B7%7D%7B4%7D%7D)
![x-\frac{1}{2}=(+/-)\frac{\sqrt{7}}{2}](https://tex.z-dn.net/?f=x-%5Cfrac%7B1%7D%7B2%7D%3D%28%2B%2F-%29%5Cfrac%7B%5Csqrt%7B7%7D%7D%7B2%7D)
![x=\frac{1}{2}(+/-)\frac{\sqrt{7}}{2}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B1%7D%7B2%7D%28%2B%2F-%29%5Cfrac%7B%5Csqrt%7B7%7D%7D%7B2%7D)
![x=\frac{1+\sqrt{7}}{2}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B1%2B%5Csqrt%7B7%7D%7D%7B2%7D)
![x=\frac{1-\sqrt{7}}{2}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B1-%5Csqrt%7B7%7D%7D%7B2%7D)
Answer:
1920 cubes.
Step-by-step explanation
Turn both the mix numbers into improper fractions.
2 2/5 = 12/5
3 1/5 = 16/5
Then you will turn 1/5 into its reciprocal and multiply both the improper fractions by it. You can just casually multiply 2 and 5.
12/5 * 5/1 = 12
16/5 * 5/1 = 16
2 * 5 = 10
Next you multiply all together to get 1920 cubes.
(I could be missing a step. I apologize if I did.)