What is the minimum value of sa when v=3.83 and e=0.75 if a and b can vary between 0 and 10?
v = (4/3)*pi*ab2
sa = 2*pi*[b2+(ab/e)sin-1(e)]
formula check: for a=0.5 and b=1.5, v=4.71 and sa=19.47

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?