3 years ago

Don’t want to fail please help! Will mark brainliest!

Mathematics

1 answer:

Masja [62]3 years ago

8 0

Answer:

1 is correct 2 is correct 3 is correct And Thats all i know

Step-by-step explanation:

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How many arrangements can be made using 2 letters of the word HYPERBOLAS if no letter is to be used more than once?

alisha [4.7K]

Answer:

90 arrangements

Step-by-step explanation:

Since there are no repititions of letters, there are unique 10 letters in total.

THe number of arrangements would be 2 permutation 10. We need the formula for permutation. That is:

$nPr=\frac{n!}{(n-r)!}\\$

Now, n = 10 [total] and r is 2, so we have:

$nPr=\frac{n!}{(n-r)!}\\\\_{10}P_{2}=\frac{10!}{(10-2)!}\\=\frac{10!}{8!}\\=\frac{10*9*8!}{8!}\\=10*9\\=90$

So, there can be 90 arrangements

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3 years ago

Can you please tell me the first 20 digits of pi. I need o memorize them for a test

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3 years ago

Billy sells hot apple cider at the Hendersonville Apple Festival each year. For a batch of cider that makes 25 servings, Billy u

Leviafan [203]

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2/25

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2 years ago

What is the area of a rectangle that is 1/2 of a meter long and 3/8 of a meter wide?

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Step-by-step explanation:

note : the area of a rectangle is : A = L ×W

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