3 years ago

If repetition is not allowed, how many 4 letter codes can be formed from only 5 letters of the alphabet?

1 answer:

8 0

Well, If you want 4 letter codes with 5 letters, would be 5 x 4 x 3 x 2 which is 430. (It gets less because If you use one letter you cant use it again.)

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3 years ago

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vodomira [7]

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3 years ago

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victus00 [196]

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777dan777 [17]

Answer:

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Step-by-step explanation:

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So for number #4 it will be 1/2 x 3 x 7

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2 years ago

Cora makes a scarf with cloth rectangles and triangles. For every 5 pieces of cloth, 2 are rectangles. She needs 15 pieces of cl

PtichkaEL [24]

Answer: There are 6 pieces of cloth are rectangles and 9 pieces of cloth are triangles.

Explanation:

Since we have given that

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