7. How many different 7-letter combinations can be

Mathematics

1 answer:

frez [133]2 years ago

8 0

<h3>Answer: 20160 </h3>

Explanation:

There are 8 letters in the word "GEOMETRY".

Use the nPr permutation formula with n = 8 and r = 7 and you'll find that 8P7 = 40320.

Or you can compute it like this 8*7*6*5*4*3*2 = 40320

This would be the answer if we could tell the E's apart.

However, we cannot tell the E's apart, so we have to divide by 2 to correct for the double-counting.

There are 40320/2 = 20160 different seven letter combinations possible.

You might be interested in

Monica has this recipe for a fruit salad.

Yakvenalex [24]

Answer:

Step-by-step explanation:

Not reasonable, Why did you put that as your answer?

The whole numbers add up to more then 4 cups.

6 0

3 years ago

Write a scenario about a bank account to represent the number sentence:<br> -100 + 100 = 0.

Korvikt [17]

Answer:

So you have spent 100 hundred dollars at the mall and you have no money on your bank account so the bank wants you to return that money and so you did and now you are not in dept. to the bank

Step-by-step explanation:

3 0

3 years ago

Please help will mark brainliest

Salsk061 [2.6K]

Answerhold on I got you

Step-by-step explanation:

3 0

3 years ago

What is cluster sampling and what is stratified sampling?

adelina 88 [10]

In stratified sampling, a sample is drawn from each strata (using a random sampling method like simple random sampling or systematic sampling). In cluster sampling, the sampling unit is the whole cluster; Instead of sampling individuals from within each group, a researcher will study whole clusters.

7 0

4 years ago

Which is equivslnt to 4x - 6y? 2(x - 3y) or -2(-2x - 3y)

ludmilkaskok [199]

So 4x-6y 2(x X3y)you would have to subtract 4x with 2x

5 0

3 years ago