Aquality control expert at life batteries wants to test their new batteries. the design engineer claims they have a standard deviation of 92 minutes with a mean life of 1196 minutes. if the claim is true, in a sample of 171 batteries, what is the probability that the mean battery life would be greater than 1179.6 minutes? round your answer to four decimal places.

1. what is the measure of ∠abc? what is the measure of ∠abd?

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.