* Section 3.5 - MTH 176, section 0: x X Mathway | Algebra Problem Solv X webassign.net/web/Student/Assignment-Responses/submit?dep=30175559&tags=autosave#question4892988_14 Q 2 X R G D CTR * 1 sea Help? 16. [-/5.55 Points] DETAILS LARPCALCLIM5 3.5.041. MY NOTES ASK YOUR TEACHER Use the following information for determining sound intensity. The number of decibels # of a sound with an intensity of I watts per square meter is given by B = 10 log where I is an intensity of 10 12 watt per square meter. Find the number of decibels $ of the sound. (a) I = 10-10 watt per m? (quiet room) de (b) I = 10 5 watt per m? (busy street corner) (c) I = 10-8 watt per m? (quiet radio) (d) 1 = 10-3 watt per m? (loud car horn) de Need Help? Read It 17. [-/5.55 Points] DETAILS LARPCALCLIM5 3.5.047. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use the acidity mo d in moles of hydrogen per liter) of a solution. Find the pH when [H+] = 3.9 x 10-5. (Round your answer to two decimal places.) PH = Need Help? Read It 18. [0/5.65 Points] DETAILS PREVIOUS ANSWERS LARPCALCLIM5 3.5.053. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER At 8:30 a.m., a coroner was called to the home of a person who had died during the night. In order to estimate the time of death, the coroner t perature was 87.30F, and at 11:00 a.m. the temperature was 84.20F. From these two temperatures, the coroner was able to determine that the d the body temperature were related by the formula t = -10 In _ 98.6 - 70 where t is the time in hours elapsed since the person died and T is t re of 98.6OF at death, and that the room e of death of the person. (Round your answ ver to the nearest hour.) 3 X A.M. Need Help? Read It Watch It