A, b and c lie on a straight line segment a , e and d lie on a straight line segment ab = 5cm ac= 30cm and eb = 4cm work out the length of ddc

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Aresearch study is done to find the average age of all u. s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample