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3 years ago

Which number is a composite number? A.11 B.21 C.31 D.41

Mathematics

2 answers:

kobusy [5.1K]3 years ago

5 0

Answer:

Step-by-step explanation:

A prime number has only two factors: 1 and itself.

A composite number has more than two factors. The number 1 is neither prime nor composite.

aivan3 [116]3 years ago

5 0

Answer:

B. 21

Step-by-step explanation:

31 is the only number that can be made by multiplying another number other than 1 and itself.

1x21=21

3x7=21

all the other options only have 2 factors

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adell [148]

Answer:

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Step-by-step explanation:

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3 years ago

Monica has a 24-inch square frame. There are 4 equal sides. She paints 3/4 of one side of the frame blue. What fraction of the f

IgorC [24]

Answer:

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Step-by-step explanation:

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3 years ago

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Rzqust [24]

She walked 7 miles. If it takes her one hour to walk four miles, then it will take 45 minutes to walk 3 miles.

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Nataliya [291]

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