Identify the domain and range of each function.
y = 3.54
The domain of this function is
The range of this function is

Given right triangle xyz, which correctly describes the locations of the sides in relation to

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.

Find the roots of the equation below. x^2 - 6 + 9 = 0