Use the data to create a scatter plot.

time (years) number of participants
(x1000) 3 22 6 25 9 28 12 14 15 17 18 20 21 15 24 9

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

Which of the following circles have their centers in the third quadrant?

Which expression gives the exact value of x?