What geographical feature most influenced the western border of the Louisiana territory in 1812

Use a graphing calculator to solve the equation - 3 cos t = 1 in the interval from 0 ≤ theta ≤ 2 π round to the nearest hundredth.

What factors led to europe's global dominance in economic and political factors? what impacts did that dominance have on other peoples and environments?

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today