let r be the region enclosed by the graph of y=x^2, the y axis and the line y=4 in the first quadrant. the volume of the solid obtained by revolving region R about the y axis is 8pi. find a such that the like y=a divides the region R into two regions such that when the regions are revolved about the y axis, the resulting solids have equal volume

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

the answer is 1/4

step-by-step explanation: