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bekas [8.4K]
3 years ago
9

PLEASE HELP ME TO SoLVE THIS Questions​

Mathematics
1 answer:
mars1129 [50]3 years ago
7 0
This is the answer key lol, I was boutha do that math but I was like wait hold up ima js search the paper up. Hope this helps lol

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Answer:

  • The center (2, 2.5), radius \sqrt{37} / 2

Step-by-step explanation:

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2 years ago
How many 4 digit numbers consisting of only the digits 2,4,6 and 8 are divisible by 4
Blababa [14]

Answer:

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Step-by-step explanation:

In order for a number to be divisible by 4, its last two digits must be divisible by 4. This will be the case if either of these conditions holds:

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We must count the ways these conditions can be met with the given digits.

__

Since we only have even numbers to work with, the ones digit must be an even multiple of 2: 4 or 8. (The tens digit cannot be odd.) The digits 4 and 8 comprise half of the available digits, so half of all possible numbers made from these digits will be divisible by 4.

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If the numbers must use each digit exactly once, there will be 4! = 24 of them. 24/2 = 12 of these 4-digit numbers will be divisible by 4.

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Each of the four digits can have any of four values, so there will be 4^4 = 256 possible 4-digit numbers. Of these, 256/2 = 128 will be divisible by 4.

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2 years ago
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Alja [10]

Answer: 1 over 12

Step-by-step explanation:

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