In an quadratic sequence 1;3;6 determine the Difference in terms of D=(a+c)- 2 × b​

Asoccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

Negative 5 1/12 + negative 4 1/4 + 6 3/4