4, for the similar triangles find the distances x and y and the angles a and b. 55â° 4.8in b 3in 12in 35â° 90â° y 15in 5. a streetlight 30 feet tall casts a shadow of a horse. if the shadow is 3 feet long and the horse is 12 feet from the base of the streetlight find the height of the horse in feet. assume they are on level ground. 6. a) find the missing length b in the triangle: round answer to 2 decimal places.] h 30â° 12 b) find the angle x in degrees for the triangle: [round answer to 2 decimal places.] 5

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?