Assume that the following statements are true. a. if sarah is drinking iced tea, then it is dinnertime. b. if it is dinnertime, then sam is drinking juice and nothing else. c. if it is lunchtime, then mario is drinking coffee and nothing else. d. if it is breakfast time, then rob is drinking water and nothing else. e. sarah is drinking iced tea. using only the information given above, determine if "sam is drinking juice" must be true, may be true, or is not true. explain your reasoning.

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.