Answer:
C
Step-by-step explanation:
Parabola with a vertex at (1, 3) opening downward.
Answer:
t≤ 9
Step-by-step explanation:
3.5+4t≤ 39.5
subtract 3.5 from each side
4t≤ 36
divide each side by 4
t≤ 9
it took me a while but the answer is 5/3
We know that the ratio is;
![2:2:8](https://tex.z-dn.net/?f=2%3A2%3A8)
The angles in a triangle add up to give 180°
We can think of there being twelve "parts" that add up to 180°
![2x + 2x + 8x = 180 \\ \\ 12x = 180 \\ \\ x = \frac{180}{12} \\ \\ x = 15](https://tex.z-dn.net/?f=2x%20%2B%202x%20%2B%208x%20%3D%20180%20%20%5C%5C%20%20%5C%5C%2012x%20%3D%20180%20%20%5C%5C%20%20%5C%5C%20x%20%3D%20%20%5Cfrac%7B180%7D%7B12%7D%20%20%5C%5C%20%20%5C%5C%20x%20%3D%2015%20)
So our ratio is;
![2*15 : 2*15 : 8*15 \\ \\ = 30 : 30 :120](https://tex.z-dn.net/?f=2%2A15%20%3A%202%2A15%20%3A%208%2A15%20%20%5C%5C%20%20%5C%5C%20%3D%2030%20%3A%2030%20%3A120)
So the smallest angle is 30°
Statistics informed decisions using data 5E