The following are the temperatures in °C for the first 12 days of January: -3.5, 0, 2.5, -4.5, 6, 4, -1, -4, 5.5, -2, 1.5, 2
What is the median temperature for those 12 days?
Give your answer as a decimal.

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

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.

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units