Asolid lies between planes perpendicular to the x-axis at x tox=. the cross sections perpendicular to the x-axis are circular disks with diameters running from the curve y cotx to the curve y csc x.
find the volume of the solid.
a. +1) oa 6 2 o
b. (2/3-2)-3 n2 o
c. (3-1)x+ (3-1)
d. 2 12

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?