The concentration of a drug in a patient's bloodstream, measured in mg/L, t minutes after being injected is given by C(t) = 5(e-0.05t - e-0.4t). Find the average concentration of the drug in the bloodstream during the first 40 minutes. (Round your answer to two decimal places.) 0.02 x mg/L Additional Materials LO eBook17. [0/0.55 Points] DETAILS PREVIOUS ANSWERS SAPCALCBR1 5.4.049. MY NOTES ASK YOUR TEACHER PR A recording artist released a new song as a digital download. If the track is downloaded at a rate of 10( 72 +6 thousand downloads/week weeks after its release, how many copies were downloaded during the first seven weeks? (Round your answer to two decimal places.) 18 * thousand copies Additional Materials eBook 18. [0/0.65 Points] DETAILS PREVIOUS ANSWERS SAPCAL@BR1 5.4.051. MY NOTES ASK YOUR TEACHER P Gasoline is being added to a supply in a storage tank at the rate of 6te-0.025- gallons/minute. How many gallons are added to the tank during the first nine minutes? (Round your answer to one decimal place.) 156.5 X gallons Additional Materials eBook Activate Type here to search O X ] 33'F Mostly cloudy DELLpart is used for your score. 1. [-/1 Points] DETAILS SAPCALCBR1 5.5.001. Evaluate the integral using integration by parts with the indicated choices of u and dv. 9x In x dx; u = 9 Inx, dv = x dx + C Additional Materials LeBook Submit Answer 2. [1/1 Points] DETAILS PREVIOUS ANSWERS SAPCALCBR1 5.5.003.MI. W X Type here to search