8. 7.
A surveyor needs to determine the distance across
the pond shown in the accompanying diagram.
She determines that the distance from her position
to point P on the south shore of the pond is
175 meters and the angle from her position to
point X on the north shore is 32°. Determine
the distance, PX, across the pond, rounded to the
nearest meter.
A ship on the ocean sus
ship on the ocean floor
of 50°. The distance be
surface and the sunkens
200 meters. If the ocea
area, how far above the
meter, is the ship on the
North
х
32°
175 m
P
South

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?