Answer:
7892 dolphins
Step-by-step explanation:
let P denote the dolphin population.
-Notice this is an exponential decay and is denoted as:

Where;
is the population at time t- t is the time
- r is the rate of decay or decrease in population
is the initial population size.
#Given t=30yrs,
=20000 and r=3.1%, the population after 30 years is estimated as:

Hence, the dolphin population after 30yrs is approximately 7892
Answer:
960m
Step-by-step explanation:
2 minutes equals to 120 seconds
8*120=960
Answer:
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Step-by-step explanation:
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hope its helps you
I believe that the proper binomials that factor this expression would be C, if not it would be B.
1. She could get 9 envelopes for 4 dollars each (or the other way around)
2. She could get 12 envelopes for 3 dollars each (or the other way around)
3. She could get 18 envelopes for 2 dollars each (or the other way around)