Four physicists describe the amount of a radioactive substance, Q in grams, left after t years: i. Q = 300e-0.0577t t ii. = 300 iii. Q = € 300 x 0.9439t iv. Q = 252.290 x 0.9439t-3 a. Show that the expressions describing the radioactive substance are all equivalent (using appropriate rounding). b. What aspect of the decay of the substance does each of the formulas highlight? Note: The number e is a mathematical constant approximately equal to 2.71828.

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