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Get Full Access to Mathematics For The International Student: Mathematics Sl - 3 Edition - Chapter 4 - Problem 11
Get Full Access to Mathematics For The International Student: Mathematics Sl - 3 Edition - Chapter 4 - Problem 11

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The weight of radioactive substance remaining after t years is given by W = 1000 20:04t

ISBN: 9781921972089 446

Solution for problem 11 Chapter 4

Mathematics for the International Student: Mathematics SL | 3rd Edition

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Problem 11

The weight of radioactive substance remaining after t years is given by W = 1000 20:04t grams. a Sketch the graph of W against t. b Write a function for t in terms of W. c Hence find the time required for the weight to reach: i 20 grams ii 0:001 grams.

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B. The diameter of bones grows by the actions of both the osteoblasts and osteoclasts. 1. Osteoclasts enlarge the medullary cavity (or the density of the bone would become too heavy). 2. Osteoblasts in the periosteum build new bone around the outside. 3. So you will end up with a bone that has a larger diameter (bigger around) as well as a larger marrow cavity (more hollow). The change in diameter is known as appositional growth.

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