Bài 12: Tam thức bậc hai là đa thức có dạng f(x) = ax2+ b x + C với a, b, c là hằng, a  0. Hãy xác định các hệ số a, b biết f(1) = 2; f(3) = 8

I’m stuck on this i don’t understand.

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

On average a herd of elephants travels 10 miles in 12 hours you can use that information to answer different questions drag each expression to show which is answers