myopenmath.com Upgra MyOpen Get ne board Learn and Liv Instructor Test 2 2hrs14mins X Progress saved Sub Score: 6/15 6/15 answered Question 1 0/1 pt 9 3 0 Details The count in a bacteria culture was 700 after 10 minutes and 1300 after 35 minutes. Assuming the count grows exponentially, What was the initial size of the culture? Find the doubling period. Find the population after 115 minutes. When will the population reach 13000. You may enter the exact value or round to 2 decimal places. Check Answer Question 2 0/1 pt 9 3 0 Details If 5000 dollars is invested in a bank account at an interest rate of 6 per cent per year, compounded continuously. How many years will it take for your balance to reach 20000 dollars? NOTE: Give your answer to the nearest tenth of a year. Check Answer Question 3 0/1 pt 9 3 @ Details 23,030 NOV O 10 MacBook Air F2 20 F4 F5 F6 F7 II F8 F9 F10 F11 # $ % & 3 4 5 6 8 9 O E R T Y U O Pr or root. log3 2 20 Vy15 20 log, (x ) + 5 log.(y) Check Answer Question 15 0/1 pt 9 3 @ Details Find the time it takes for $6,900 to double when invested at an annual interest rate of 12%, compounded continuously. years Find the time it takes for $690,000 to double when invested at an annual interest rate of 12%, compounded continuously. years Check Answer Submit and End 23,030 10 . . MacBook Air F6 II F2 BO F3 F4 F5 F7 F9 F10 # $ % & 3 5 6 8 9 E R T Y U P D F G H K C V B N MCheck Answer Question 9 0/1 pt ) 3 0 Details Find the time required for an investment of 5000 dollars to grow to 8300 dollars at an interest rate of 7.5 percent per year, compounded quarterly. Your answer is t - years. You may enter the exact value or round to 2 decimal places. Check Answer Question 10 0/1 pt 9 3 1 Details The number of bacteria in a culture is given by the function n(t) = 9450.5t where t is measured in hours. (a) What is the relative rate of growth of this bacterium population? Your answer is percent (b) What is the initial population of the culture (at t=0)? Your answer is (c) How many bacteria will the culture contain at time t=5? Your answer is Check Answer Question 11 0/1 pt 9 3 1 Details The doubling period of a bacterial population is 10 minutes. At time t = 110 minutes, the bacterial 23,030 NOV O 10 A MacBook Air F4 F5 F6 F7 F9 F10 F11 $ & W # 4 5 6 8 9 E R T Y U O P D F G H Kne, Neermala - Blackboard Learn 0/1 pt 0 3 0 Details Question 10 DO The number of bacteria in a culture is given by the function n(t) = 945e-5t where t is measured in hours. (a) What is the relative rate of growth of this bacterium population? Your answer is percent onkeys (b) What is the initial population of the culture (at t=0)? Your answer is ttle monkeys (c) How many bacteria will the culture contain at time t=5? le bed song... Your answer is Log In or k.com Check Answer ook for iPod and ter. Already ha... Question 11 6 0/1 pt 9 3 @ Details The doubling period of a bacterial population is 10 minutes. At time t = 110 minutes, the bacterial population was 80000. What was the initial population at time t = 0? Find the size of the bacterial population after 3 hours. Check Answer Question 12 1/1 pt 9 2 0 Details Score on last try: 1 of 1 pts. See Details for more. Solve for I: 25x -9 - 1072- 23,030 NOV O 10 MacBook Air FI F2 F3 F5 - F6 44 F7 DIIF F9 F10 @ % 2 5 6 8 9 O W E R T Y U P S D F G Hmyopenmath.com C board Learn MyOpenMath Check Answer Question 3 0/1 pt 5 3 @ Details The fox population in a certain region has a continuous growth rate of 8 percent per year. It is estimated that the population in the year 2000 was 16500. (a) Find a function that models the population t years after 2000 (t = 0 for 2000). Hint: Use an exponential function with base e. Your answer is P(t) = (b) Use the function from part (a) to estimate the fox population in the year 2008. Your answer is (the answer must be an integer) Check Answer Question 4 0/1 pt 9 3 0 Details The half-life of Palladium-100 is 4 days. After 20 days a sample of Palladium-100 has been reduced to a mass of 1 mg. What was the initial mass (in mg) of the sample? What is the mass 8 weeks after the start? Check Answer Question 5 1/1 pt 9 1 1 Details Score on last try: 1 of 1 pts. See Details for more. 23,030 NOV O 10 . . .. 4 CH MacBook Air 000 F2 F4 F5 - F6 DII F7 F8 F9 F10 F11 # LA % & 5 6 8