The rental rate for a cement mixer has a flat rate of $40 plus $20 for each day of the rental. the graph shows points representing the total cost of the rental. which linear equation, in slope-intercept form, that models the total cost of the rental over time? a. y = 50x + 25 b. y = 25x c. y = 75x d. y = x + 50 e. y = 20x +40

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

In the triangles, tr = ge and sr = fe. if = 3.2 ft, which is a possible measure of ? 1.6 ft 3.0 ft 3.2 ft 4.0 ft