Three cars are driving on a racetrack. the mean speed of the three cars is 100 miles per hour. car x drives 101 miles per hour and car y drives 116 miles per hour. use the mean to estimate the speed of car z. then find the actual speed of car z.

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

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?