Aradioactive isotope takes 80 minutes to decay from 64 grams to 4 grams. let y(t) denote the amount of the isotope (in grams) present after t minutes.
1. find the constant c and k such that y(t)=ce^-kt

2. how long do we have to wait (in minutes) if we want the mass of the isotope to drop below 1 gram?

what are the statements

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d i think

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the most boring ever written

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i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.