1. Scientists have observed that living matter contains, in addition to carbon, C 12, a fixed Percentage of a radioactive isotope of carbon, C14. When the living material dies, the amount of C12 present...

1. Scientists have observed that living matter contains, in addition to carbon, C 12, a fixed Percentage of a radioactive isotope of carbon, C14. When the living material dies, the amount of C12 present...

Exponential decay word problem

Ray Idusties bought a touch screen monitor for $850. The monitor is expected to depreciate at a rate of 35% per year. What will the value of the monitor be in 5 years?

(a) What is the exponential decay rate? Round to 5 decimal Places (b) Suppose we have 20 mg sample. How much of the sample will remain after 3000 years? Round to two decimal places

what is the percentage of decay for the years

I don't know what exact formula to use. i know 5% is .05 and 7 years is the Time. I'm not sure how to find the half time in years with the given.

Exponential growth or decay? Write a function that represents this situation: Initial Amount = ?? Growth\Decay Rate: Percent=?% Decimel=?.? Answer:

under certain water conditions, the free chlorine in a swimming pool decomposes according to the law of uninhibited decay. after shocking his pool, Ben tested the water and found that the free chlorine...

Goods costing $26.94 at the beginning of the year 1961 cost $174.82 at the beginning of the year 2004. Find the average annual inflation rate over this time period. Express your answer the nearest...

For my maths assignment, i had to do an experiment using a pendulum and measuring the amplitude of every 10 swings up to the 80th swing. One of the questions is find the ratio between consecutive...

A. construct a model to represent the atmospheric pressure at a given altitude in thousands of meters? B. How many atmospheres of pressure will you feel at 5,895 meters? (Top of Mt. Kilimanjaro) C...

Problem about exponential decay.

I need use this formula to find when the population will reach 7 billion

half life of m-50 is 8 hrs, and you have 50 grams. "A" is number of hrs after recording and f(A) is the amt left. describe this with an exponential model. I have:...

The sales, S, of a product have declined in recent years. 1.8 million were sold in 2009 but only 1.2 million sold in 2012. Assume the sales are decreasing according to the exponential model S(t)=Soe^kt A...

Carbon 14 is used for carbon dating. Carbon 14 decays at a rate of y=Yoe-(ln2)(1/5700)t. If a mummy is found and has exactly 1/3 of its carbon 14 remaining, how long has the mummy been entombed....

A population grows exponentially at an annual rate given by r=0.03. What will the population be in 75 years if the initial population is 2500?

no additional details

1) Explain when a function in the form y=a•b^x models exponential growth and when it models exponential decay.

A.) y=3^x-4 B.) y=2(4)^x C.) y=1/2(3)^x D.) y=6(1/3)^x First of what is a decay curve and how do you find it?

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