1.) A vertical cylindrical storage tank, with a diameter 20 ft, is filled with oil to a depth of 40 ft. Sometime later, the oil is drained, decreasing the depth at a rate of 8 in per hour. Write an equation for the volume of oil (ft^3) remaining in the tank t hours later as a function of t, V(t). Draw a geometrically correct sketch supporting your solution.
2.) The area of a series of isosceles triangles is modeled by a triangle that has its base along the positive x-axis, with one base angle at the origin and its vertex in the first quadrant, positioned on the graph of the function f(x)=6-x^2. Write the area of the triangle as a function of x, A(x). Make a suitable sized graphical sketch of the problem, showing relevant details supporting your solution.
thank you so much with the help :]