#13 "Olympic Gold" The winning times for the 400m run at the Olympics have been decreasing over time for both men and women. In 1972, the winning men's time was 44.66 seconds and in 1996, the winning men's time was 43.39 seconds. a) Write an equation in slope-intercept form to predict the winning men's time, where x is the years since 1972. b) What does the dependent variable represent? c) What is the slope and what does it represent? Use the equation to predict the winning men's time in 2032. d) e) Use the equation to predict the year that winning men's time is 42.06 seconds. Math Byrd 2017 mk

Which of the following lines does not intersect the line y=-2x+3 ? a) y=2x b) y=2x-3 c) y=2x+3 d) y=-2x-3

Acredit union pays 5% annual interest, compounded daily, on saving deposits. find the value after one year of $500 deposited in this account. a-$20.40 b-$25.64 c-$520.40 d-$525.64

Time (minutes) amount of water (gallons) practice 1. jin fills up a 510-gallon pool in the backyard for her children. she fills it with the garden hose at a rate of 17 gallons per minute. after it is filled, she lets it sit for 30 minutes in order to let the water temperature rise. the children then get in and have fun for an hour. the pool loses about 5 gallon of water each minute due to their splashing and playing. at the end of the hour, they tear the pool while getting out, which causes a leak the pool then begins to lose water at a rate of 2 gallons per minute. a. complete the table to show the amount of water in the pool after each minute. b. create a graph to model the problem situation. include when the pool will be empty. c. write a piecewise function that models this problem situation. explain your reasoning for each piece of the function. d. identify the x- and y-intercept. explain what they mean in terms of the problem situation, atamantha a cul 80 100 120 150 200 ning, inc