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. Question 1 0/5 pts O 3 # 99 0 Details Polluted water is passed through a series of filters. Each filter removes 90% of the remaining impurities from the water. If you have 10 million particles of pollutant per gallon originally, how many filters would the water need to be passed through to reduce the pollutant to below 500 particles per gallon? You can only use a whole number of filters. filters Question Help: Message instructor Submit Question Question 2 6 0/5 pts ( 3 99 0 Details India is the second most populous country in the world, with a population in 2020 of about 1.38 billion people. The population is growing by about 1.34% each year. If the population continues following this trend, during what year will the population reach 2 billion? Question Help: Message instructor Submit Question Question 3 0/5 pts ) 3 99 0 Details If $1000 is invested in an account earning 3% compounded monthly, how long will it take the account to grow in value to $1500? Round to the nearest month. years , months Question Help: Video Message instructor Submit Question Question 4 6 0/5 pts 0 3 99 0 Details In Lesson 4.2, you found a model for a spread of a disease. Suppose that another outbreak has been detected. On Sept 1, there were 60 reported cases. A week later, there were 75 reported cases. If the disease continues spreading exponentially, how many weeks after Sept 1 will 850 cases be expected? Round to the nearest week. weeksQuestion 5 0/5 pts D 3 99 0 Details In chemistry, the acidity of a liquid is commonly measured in pH. pH is important outside of chemistry to many things, including keeping swimming pools maintained, and measuring the acidity of rain. The pH scale is related to the concentration of hydrogen ions in the liquid, a number that tends to be very small, so the ph scale was introduced to make the numbers easier to work with. For a given concentration of hydrogen ions, H, measured in Molars, the pH is determined by pH = -log(H) Purified tap water has a hydrogen ion concentration of 10" M. Find the pH of water. Question Help: @Video ) Message instructor Submit Question Question 6 Go/5 pts 0 3 99 0 Details Plot the number 0.001 on the log scale below. 10-5 10-4 10-3 10-2 10-1 100 101 102 103 104 105 Clear All Draw: Question Help: ) Message instructor Submit Question Question 7 Go/5 pts 9 3 # 99 0 Details Plot the number 0.0022 on the log scale below. 10-5 10-4 10-3 10-2 10-1 10 101 102 103 104 105 Clear All Draw: Question Help: Video Message instructor Submit