Simplify:
mathematics​

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

Which of the following vectors are orthogonal to (2,1)? check all that apply

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)