Three runners ran the 100 meter dash. Sergio finished In 12.03, jamie finished in 11.87, Marco finished in 12.40 seconds. In what order did the runners finish the race?

What is the value of r of the geometric series?

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

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.