A population of rabbits is described by the function R(t) = 100(2t/5), where t is measured in months and R is measured in rabbits. Create a clear and properly labeled graph of R(t) on the domain 0 ≤ t ≤ 15 months.

Required:
a. Find ΔR on [1,2].
b. Find R(0).
c. Find R(10)
d. When will the population be 500 rabbits?

Respuesta :

Answer and Step-by-step explanation: The graph is shown in the attachment.

a. ΔR on [1,2] is mathematically expressed as:

ΔR = R(2) - R(1)

which means difference of population of rabbits after 2 months and after 1 month.

[tex]R(1) = 100(\frac{2}{5}.1 )[/tex]

[tex]R(1) = 100(\frac{2}{5} )[/tex]

R(2) = [tex]100(\frac{2}{5}.2 )[/tex]

[tex]R(2) = 100(\frac{4}{5} )[/tex]

[tex]\Delta R = 100(\frac{4}{5} )-100(\frac{2}{5} )[/tex]

[tex]\Delta R = 100[\frac{4}{5} - \frac{2}{5} ][/tex]

[tex]\Delta R=[/tex] 40

Difference of rabbits between first and second months is 40.

b. R(0) = 100([tex]\frac{2}{5} .0[/tex])

R(0) = 0

Initially, there no rabbits in the population.

c. R(10) = [tex]100(\frac{2}{5}.10 )[/tex]

R(10) = 400

In 10 months, there will be 400 rabbits.

d. R(t) = 500

[tex]500=100(\frac{2}{5}.t )[/tex]

[tex]\frac{500}{100}=\frac{2}{5}.t[/tex]

[tex]t = \frac{500.5}{100.2}[/tex]

t = 12.5

In 12 and half months, population of rabbits will be 500.

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