The base of a solid in the region bounded by the graphs of y=e^-xy=0, and x=0, and x=1. cross sections of the solid perpendicular to the x-axis are semicircles. what is the volume, in cubic units, of the solid?

The diameter of each semicircular cross-section is given by the vertical distance between the curves and , which is just .

Given a semicircle with diameter , its area is , so the area of each semicircular section is .

The volume of the solid is obtained by integrating from 0 to 1:

i'm pretty sure it's 477,585,296, but perhaps my math is incorrect.

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons