This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: b (0) = − 2 , b (1) = 0 , b (2) = 4 , b (3) = 5 and let c be the function whose graph is given below 1 2 INSTRUCTOR: JOS ´ E MANUEL G ´ OMEZ-3-2-1 1 2 3-2-1 1 2 3 ◦ y = c ( x ) x y Find the following quantities (a) a ◦ b-1 (0) . (b) b ◦ c (2). (c) c ◦ a (4). (6) (5 Points) Radioactive isotopes are used in real life to determine the absolute age of fossils. The amount of a given radioactive isotope W ( t ) present in a fossil after t years, is given by the equation W ( t ) = W e-λt . In this case λ = 0 . 0023104 and W is the initial quantity of the radioactive isotope. Find the half life of this isotope. Recall that the half life is de±ned to be the time that it takes for half of the radioactive material to decay....
View Full Document
This note was uploaded on 01/20/2012 for the course CALC AS.110.106 taught by Professor Josegomez during the Fall '11 term at Johns Hopkins.
- Fall '11