3 years ago

The circle below with the center O has a circumference of 48 cm?

Mathematics

1 answer:

sashaice [31]3 years ago

7 0

The is 12 I think hope that helps

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If the E(X) = 1 then that means it has a 100% which is incorrect.
Each block has an equal probability to contain the error so 1/3 because you choose 2/6.

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3 years ago

Kim is trying to save at least $450. She has already saved $75. She can babysit for $5 an hour. How many hours does Kim need to

larisa [96]

Answer:

70 hours.

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Dan grew 22 pumpkins but tge rabbits ate 25 pumpkins.how many pumpkins does dan have left

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Answer:

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Let n be a natural number. Show that 3 | n3 −n

Vladimir [108]

Let $n=1$ . Then $n^3-n=1^3-1=0$ . By convention, every non-zero integer $n$ divides 0, so $3\vert n^3-n$ .

Suppose this relation holds for $n=k$ , i.e. $3\vert k^3-k$ . We then hope to show it must also hold for $n=k+1$ .

You have

$(k+1)^3-(k+1)=(k^3+3k^2+3k+1)-(k+1)=(k^3-k)+3(k^2+k)$

We assumed that $3\vert k^3-k$ , and it's clear that $3\vert 3(k^2+k)$ because $3(k^2+k)$ is a multiple of 3. This means the remainder upon divides $(k+1)^3-(k+1)$ must be 0, and therefore the relation holds for $n=k+1$ . This proves the statement.

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Todd is saving for a vacation. The cost of his vacation is $1,089. Todd has a year to save the money. About how much does he nee

Lilit [14]

90.75

1.089 divided by 12 is 90.75

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