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blsea [12.9K]
3 years ago
12

Please help me!! please

Mathematics
1 answer:
Vikki [24]3 years ago
5 0

Answer:

10

Step-by-step explanation:

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The number of all possible 3-person groups
{10 \choose 3}=\dfrac{10!}{3!7!}=\dfrac{8\cdot9\cdot10}{6}=120

The number of all possible groups consisting of 1 girl and 2 boys
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Step-by-step explanation:

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For a given rabbit population, the relationship between the number of adult female rabbits, F, and the number of offspring, R, t
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Considering the given function in the problem, it is found that:

a. 9.6 offspring survive to maturity when there are 12 female rabbits in the population.

b. At least 18 female rabbits are required for there to be 13 offspring.

<h3>What is the given function in this problem?</h3>

The function gives the relationship between the number of adult female rabbits F and the number of offspring R as follows:

R = 3 + \frac{350F}{F + 625}

When there are 12 female rabbits, we have that F = 12, hence:

R = 3 + \frac{350 \times 12}{12 + 625} = 9.6

9.6 offspring survive to maturity when there are 12 female rabbits in the population.

For at least 13 offspring, we have that the number of rabbits needed is given as follows:

R \geq 13

3 + \frac{350F}{F + 625} \geq 13

\frac{350F}{F + 625} \geq 10

350F \geq 10F + 6250

F \geq \frac{6250}{340}

F \geq 18

At least 18 female rabbits are required for there to be 13 offspring.

More can be learned about functions at brainly.com/question/25537936

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Answer:

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Step-by-step explanation:

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