Find all the zeros of the equation. -4x4 - 44x2 + 3600 = 0

Volume of a cylinder with a radius of 13 in and height of 30 in

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.

Is it true or false i’m trying to pass this test so i can leave school