(10.05 MC) 13
370
2 and < < 2 , what are the values of cos O and tan O? (2 points)
If sin o
1
2 ; tan =
0 = 3
cos =
O
1
2 ; tan = -1
cos =
13
cos O = 4 ; tan = -2
1
COS O
2: tan 0 - 13

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?