Is the product of 2x - 5 and 3x2 + 5x - 7 equal to the product of 5x – 2 and 3x2 + 5x - 7? Explain your answer.

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.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.