Last year, 210 middle school students attended the conference. This year, 195
middle school students attended the
same conference. Calculate the percent
change

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.

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.