Answer:
1296 m^2
Step-by-step explanation:
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Answer:
3 549
Step-by-step explanation:
Answer:
In 50 years there'll be approximately 3582 elephants.
Step-by-step explanation:
If they are decreasing at a rate of 9% per year, it means it's population by year is:
population(0) = 400000
population(1) = population(0)*(100% - 9%) = population(0)*(91%)
population(2) = population(1)*(91%) = population(0)*(91%)*(91%) = population(0)*(91%)²
population(3) = population(2)*(91%) = population(0)*(91%)²*(91%) = population(0)*(91%)³
And so on, so the number of population as years passes is:
population(n) = population(0)*(91/100)^n
In this case we want to know the population of elephants when n = 50, so we have:
population(50) = 400000*(0.91)^50 = 3582.033
In 50 years there'll be approximately 3582 elephants.
If you would like to solve a = 2x + 6xz for x, you can do this using the following steps:
<span>a = 2x + 6xz
</span>a = x * (2 + 6z)
x = a / (2 + 6z)
The correct result would be <span>x = a / (2 + 6z).</span>