Answer:
i cant see it post again but closer up
Step-by-step explanation:
i cant see it
X2 + 6X +8
the answer is C. 4
Answer:
10 x 10 x 10 divided by 9? =111.111111111
Answer:
Step-by-step explanation:
Given that:
and ![d = 10t - 8](https://tex.z-dn.net/?f=d%20%3D%2010t%20-%208)
If we equate both since they are distances, we have:
Algebraically, moving the equation to the right side, we get:
![2t^ 2 = 10t -8 \\ \\ 2t^2 -10t +8 =0](https://tex.z-dn.net/?f=2t%5E%202%20%3D%2010t%20-8%20%5C%5C%20%5C%5C%202t%5E2%20-10t%20%2B8%20%3D0)
To factor the equation on the left side:
![2t^2 - 10t + 8 = 0](https://tex.z-dn.net/?f=2t%5E2%20-%2010t%20%2B%208%20%3D%200)
Factor out 2 on the left-hand side:
![2 (t^2 -5t + 4) =0](https://tex.z-dn.net/?f=2%20%28t%5E2%20-5t%20%2B%204%29%20%3D0)
![=2 (t^2 -t-4t + 4)](https://tex.z-dn.net/?f=%3D2%20%28t%5E2%20-t-4t%20%2B%204%29)
![= 2[t(t-1)-4(t-1)]](https://tex.z-dn.net/?f=%3D%202%5Bt%28t-1%29-4%28t-1%29%5D)
![=2(t-1) (t-4)](https://tex.z-dn.net/?f=%3D2%28t-1%29%20%28t-4%29)
To determine the time when the two boats have to cover an equal distance:
![2(t -1)(t-4) =0 \\ \\(t-1)(t-4) =0](https://tex.z-dn.net/?f=2%28t%20-1%29%28t-4%29%20%3D0%20%5C%5C%20%5C%5C%28t-1%29%28t-4%29%20%3D0)
Thus:
![t - 1 = 0 \ or \ t - 4 = 0 \\ \\ t = 1 \ or \ t = 4](https://tex.z-dn.net/?f=t%20-%201%20%3D%200%20%5C%20%20or%20%5C%20%20t%20-%204%20%3D%200%20%5C%5C%20%5C%5C%20t%20%3D%201%20%20%5C%20%20%20or%20%20%20%5C%20%20t%20%3D%204)
7.6 Is y. You have to bring y to the other side of the equation to solve