The half life of radon in 4 days . From a sample of 450g determine an equation that can be used to model the amount remaining S , after T days THEN calculate the amount remaining after 20 days - round to one decimal

Q: The half-life of Radium-226 is 5 years. How much of an initial 170 g sample will remain after 22…

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Q: The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time…

A: The rate of decay of radioactive isotope is proportional to the amount present in it. Half-life is…

Q: The amount of carbon 14 present in a paint after t years is given by A(t)=Ae-0.000121 The paint…

A: The amount of carbon 14 present in a paint after t years is given. We have to find the age of the…

Q: Use the approximate half-life formula for the case described below. Discuss whether the formula is…

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Q: sample of radium has a weight of 1.5 mg and a half-life of approximately years. 1. How much of the…

A: If m0 is initial weight of substance then weight of substance after t years is given by m(t) =…

Q: Molybdenum-99 is a radioactive element used in medicine (for example when performing a brain scan).…

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Q: Determine the half-life of the substance that decays from A, to A in time t. A, = 10.1, A = 4.1, t=…

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Q: Approximate the solution to ln 4x = 3.2. Round to 3 decimal places

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Q: A population of fish in a newly dug pond grows according to the equation P = 6000 1+ 5e-0.2t where…

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Q: The doubling period of a baterial population is 10 minutes. At time t = 110 minutes, the baterial…

A: From nature growth law, the rate of change of a substance at time t is proportional…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.