A new grocery is opening next week the Store rectangular floor is 42 meters long and 39 meter wide ​

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.

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

10% of 1,900,000. show me how you got the answer