An object moves +4 m/s for one minute. then it turns around and moves -4 m/s. what had to change during the time the object reversed its direction? a only its speed b only its velocity c both its speed and its velocity d neither its speed nor its velocity

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

How many lines can be drawn through points j and k? 0 1 2 3

Which expression gives you the distance between the points (5,1)and(9,-6)