Answer:
t=160.82 years
Step-by-step explanation:
exponential decay function is
If initial amount A_1 is 100 then material remaining is 99.57
divide both sides by 100, question says 1 year so t=1
take ln on both sides
k=-.00431
t=1, A= 50 remaining (half life)
divide both sides by 100
take ln on both sides
t=160.82 years
9×2=18. add the tow zeros like this 9×2=18+00=1,800
Answer:
Step-by-step explanation:
Gauss n(n+1)/2
which is n? the last number of the sum
500(500 + 1)/2 = 125,250
800(800+1)/2 = 320,400
uh oh forgot to read the last one, give me a minute. done
(800 - 501 + 1)(800 + 501)/2
300(1301)/2 = 195,150
or
320,400 - 125,250 = 195,150
Answer: D. The percent is greater than 0 and less than 100, and the decimal is between 0 and 1.
Y = a(1 - r)^t
Y = 8,000(1 - 0.06)^t
You can see a = 8,000
As the fish population starts at 8,000