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3 years ago

If you have a collection of 20 items, how many different groups of 8 can you create?

Mathematics

2 answers:

Simora [160]3 years ago

8 0

Answer:

you can create 2 groups of 8 and you will have a group of 4 left

Step-by-step explanation:

madam [21]3 years ago

5 0

Step-by-step explanation:

20 ÷8 =2.5

you can create 2.5 groups from 20 items

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A pediatrician has administered a flu vaccine to 1,000 children in a local community. The average number of children who contrac

White raven [17]

Answer:

1.83%

Step-by-step explanation:

For the expected value of 4 cases per 1000 children. We can use a formula for Poisson distribution to calculate the probability that none of the 1000 students would contract the flu:

$P(X = 0) = \frac{\lambda^ke^{-\lambda}}{k!}$

$P(X = 0) = \frac{4^0 e^{-4}}{0!}$

$P(X = 0) = \frac{1}{e^4} = 0.0183$

So the probability of this to happens is 1.83%

7 0

4 years ago

Anyone know this one?

Dvinal [7]

Answer:

Step-by-step explanation:

<em>This is cube root (hence the </em> $\sqrt[3]{}$ ).

To find the cube root of a number, we are looking for a number that, when multiplied by itself 3 times, equals the number inside the sign.

So:

$3^x = 27$

We know that $2\cdot 2\cdot 2 = 8$ , so this doesn't work.

We also know that $3 \cdot 3 \cdot 3 = 27$ , so this works.

Therefore the cube root of 27 is 3.

Hope this helped!

4 0

3 years ago

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Graph the line - 4x + y=5 on the coordinate grid

melamori03 [73]

Try using desmos graphing calculator, it's a website that helps you graph.

3 0

4 years ago

Given the equation Y -4 equals three force X +8 in point slope form, identify the equation of the same line in standard form

Genrish500 [490]

Answer:

3x - y = -28

Step-by-step explanation:

Given the equation y-4 = 3(x+8), distribute and simplify to get the Standard Form.

y-4 = 3(x+8)

y - 4 = 3x + 24

y = 3x + 28

-3x + y = 28

Standard form does not allow the coefficient of x to be negative so multiply the equation by -1.

3x - y = -28

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4 years ago

The box plots show data about the number of years that farmworkers have been employed at each of two farms

NemiM [27]

Answer:

The median of the data for farm Y is greater then the median of the data for farm X

Step-by-step explanation:

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3 years ago

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