Author Question: At a plant that packages bottled spring water, the water is passed through a sequence of ... (Read 32 times)

pragya sharda · **on:** Dec 18, 2021

Question 1

A company's annual revenue for the period since 2000 can be modeled by the function

where R is in millions of dollars and n = 0 corresponds to 2000. Assuming the model accurately predicts future revenue, find the year in which the revenue first exceeds $4.98 million.
◦ 2009
◦ 2010
◦ 2011
◦ 2013

Question 2

At a plant that packages bottled spring water, the water is passed through a sequence of ion-exchange filters to reduce the sodium content prior to bottling. Each filter removes 70% of the sodium present in the water passing through it. Determine the number of filters that must be used to reduce the sodium concentration from 30 parts-per-million to 7.20 parts-per-million.
◦ 7 filters
◦ 6 filters
◦ 4 filters
◦ 5 filters

joanwhite · **Reply #1 on:** Dec 18, 2021

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