FR POINTS!!!1 Take em, I'm doing a TON MORE of these, please (if you want) support my friend's YT!

MORE POINTS ON THE WY!!!

https://www. you tube. com/watch?v=JnhT59dUg5M (fix space between you and tube)

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.