After a 75% reduction, you purchase a new dvd player on sale for $145. what was the original price of the dvd player?

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.

What is the prime factorization of 230

Two numbers have a sum of -19. one number is x. what expression represents the other number?