# HW-15 - Math 1314 Homework 15 Enter your answers in the...

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Math 1314 – Homework 15 - Page 1 of 3 Math 1314 Homework 15 Enter your answers in the EMCF titled “Homework 15” at casa.uh.edu before the due date/time. 1. Problem 13.5.2a A. -0.06 B. 0.06 C. 2000 D. 120 E. 0.06 e - 2. Problem 13.5.2b A. 120 B. 0.06 e - C. 0.06 D. -0.06 E. 2000 3. Problem 13.5.2: Using the decay function that is given, find (15) Q . A. 4919 B. 813.14 C. 282.52 D. 246.8 E. 653.29 4. Problem 13.5.4: Write the function ( ) Q t that represents the world population (in billions) as a function of time t (in years) where t = 0 corresponds to the beginning of 1990. A. 0.0198 ( ) 5.406 t Q t e = B. 0.0198 ( ) 5.3 t Q t e - = C. 0.0198 ( ) 5.3 t Q t e = D. 0.198 ( ) 5.3 t Q t e = E. 0.1098 ( ) 5.3 t Q t e =

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Math 1314 – Homework 15 - Page 2 of 3 5. Problem 13.5.4: Use the function you found in Homework Exercise 4 to estimate the world population in 2010. A. 278.02 million B. 8.03 million C. 47.64 million D. 7.88 million E. 3.57 million 6. Problem 13.5.4: Find the rate at which population is changing when t = 20.
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