Find the area of the triangle.
Area=

(Simplify your answer)

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a. p.

Awindow has the shape of a rectangle with a semi circle at the top. find the approximate area of the window using the dimensions shown. 4ft by 8ft