What is the measure of the third angle in a triangle with angles measuring 45 degrees and 75 degrees?
+
What is the average temperature (in degrees Celsius) over a week if the recorded temperatures were 20, 22, 23, 21, 25, 24, and 20?
+
What is the result when a vector of magnitude 5, directed 30 degrees clockwise from the positive x-axis, is added to a vector of magnitude 8, directed 45 degrees counterclockwise from the positive x-axis?