Simplify
4x^2+8x-11x+6-5x^2+2​

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

How can you tell when x and y are not directly proportional?

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?