F is the correct answer. Rise over Run is slope, it "Rises" 3 and "Runs" 15 to the right. 3/15 reduces to 1/5.
Answer:
7892 dolphins
Step-by-step explanation:
let P denote the dolphin population.
-Notice this is an exponential decay and is denoted as:
![P_t=P_oe^{-rt}](https://tex.z-dn.net/?f=P_t%3DP_oe%5E%7B-rt%7D)
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:
![P_t=P_oe^{-rt}\\\\=20000e^{-0.031\times 30}\\\\=7891.07\approx7892\ dolphins](https://tex.z-dn.net/?f=P_t%3DP_oe%5E%7B-rt%7D%5C%5C%5C%5C%3D20000e%5E%7B-0.031%5Ctimes%2030%7D%5C%5C%5C%5C%3D7891.07%5Capprox7892%5C%20dolphins)
Hence, the dolphin population after 30yrs is approximately 7892
Blue 9 x 3 = 27
red 3 x 3 = 9
27 + 9 = 36
I hope this helps
8n+3=5
8n=2
N=.25
The number is .25 or 1/4