sam has a cylindrical fish tank with an open top. the tank has a height 30cm and radius 20cm. what is the total surface area of the tank ?

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?