4. Here is a partially finished tree diagram showing the political parties of local government officials and how they are expected to vote on an upcoming issue.

The triangles are similar. what is the value of x? show your work.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year