Find the volume of a tank whose base has an area of 3x2+30x+5 square feet and whose height is 8x-5 feet.

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?