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Please help i will mark you brainiest
Select ALL the situations classified as exponential decay.

1. the temperature of a hot cup of coffee left on the counter every minute

2. the amount of a radioactive element remaining in a sample every decade

3. the amount of money in a savings account that earns interest annually

4. the monthly sales of albums by a band whose popularity is declining

5. the value of a home in a growing community every year

Respuesta :

Answer:

1,2,4

Step-by-step explanation:

1: The temperature should be decreasing in an exponential rate as the coffee is hot

2: radioactive element should keep decreasing over years

3: should be increasing rate

4: 'popularity is declining' indicates it's a decay

5: 'growing community' indicated it's increasing

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