Describe the location of the point having the following coordinates. negative, abscissa, positive, ordinatea. quadrant 1b. quadrant2c. quadrant3d. quadrant4

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.

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.