Johnny finds that the probability of a gaming system having a defect is 12%. What is the probability that the first system Johnny finds with a defect is the 9th on he tests? Group of answer choices

0.043

0.093

0.388

0.087

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.

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6

What is the period of the sinusoidal function ?