It would take 26 years.
The equation will be in the form y = a(1+r)ˣ, where a is the initial population, r is the growth rate as a decimal number, and x is the amount of time. Using our information we have
y = 18450(1+0.027)ˣ = 18450(1.027)ˣ
We want the population to be doubled; 18450*2 = 36900:
36900 = 18450(1.027)ˣ
Divide both sides by 18450:
36900/18450 = 18450(1.027)ˣ/18450
2 = 1.027ˣ
Using logarithms, we have
You add all the sides together for perimeter
Answer:
x = -1, 0, 2
Step-by-step explanation:
p(x) = 5x³ − 5x² − 10x
Factor the greatest common factor:
p(x) = 5x (x² − x − 2)
Now factor the quadratic. You can use the AC method, the quadratic formula, the rational root test, or trial and error.
p(x) = 5x (x − 2) (x + 1)
Finally, set each factor equal to 0 and solve for x.
5x = 0 → x = 0
x − 2 = 0 → x = 2
x + 1 = 0 → x = -1
Answer:
45 fish this year
Step-by-step explanation:
60 x .25 = 15
60 - 15 = 45