radical, rational exponent

13. [0\" Points] I DETAILS I I PREVIOUS ANSWERS | HARMATHAP12 0.4.064. _\\" NOTES _K YOUR TEACHER PRACTICE ANOTHER The intensity of sound I (as a multiple of the average minimum threshoid of hearing intensity) ls related to the decibel level 0 (or loudness of sound} according to In a IoDIIO- to} Express 100' 1 using radical notation. 10W\") . I x (b) The background noise level of a relatively quiet room has a decibel reading of 31. Find the intensity :1 ofthis noise level. {Round your answer to two decimal places.) :,=[:] (c) A decibel reading of 135 is at the threshold of pain. If I: is the Intensity of this threshold and 11 Is the intensity found In part (b). express the ratio 11!!! as a power of 10. 2: 10C] I1 Approximate the ratio. (Round your answer to two decimal places.) Need Help? i 14. {-11 Points] HARMATHAHZ 0.4.072. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Suppose It has been determined that the sales at a gallery decline after the end of an advertising campaign, with daily sales given by s = 3000(24-1') where Sis in dollars and x is the number of days alter the campaign ends. lWhat are the daily sales 50 days after the end of the campaign? *C] New Help? _