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:
infinitely many solutions
Step-by-step explanation:
Because
distribute 5 into (x+10)
5x+50-25=5x+25
5x+25=5x+25
Answer:
there is a strong negative correlation between data so the chosen model is a good fit
Step-by-step explanation:
a correlation coefficient close to -1 means that the model is considered a good fit; if correlation is greater than 0.8 then it's described as strong
That's easy. Just look up the arc sine of .43 which equals:
25.468 Degrees
Its C , a negative association because it is going from the top left to the bottom right which is knows as a negative association/negative correlation , hope this helps