Find all values of x in the interval [0, 2π] that satisfy the equation 18 cosx -9 = 0
(Enter your answers as a comma - separated list.)

X=

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.

Which of the following expressions is equal to 2x^2+8

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct