What is the volume of a hemisphere with a radius of 2.1 m, rounded to the nearest tenth of a cubic meter?

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

Rewrite so the subject can be y in the formula d=m-y/y+n