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Paladinen [302]
2 years ago
7

Please help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Ainat [17]2 years ago
5 0

9514 1404 393

Answer:

  the correct answer is marked

Step-by-step explanation:

The circle with center (h, k) and radius r has equation ...

  (x -h)² +(y-k)² = r²

For the given center, that is ...

  (x -1)² +(y +1)² = r²

The value of r² can be found by using the given point for x and y, and seeing what value of r² makes the equation true.

  (5 -1)² +(7 +1)² = 4² +8² = 16 +64 = 80

So, r² = 80 makes the equation true, and that equation is ...

  (x -1)² +(y +1)² = 80

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Answer:

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Step-by-step explanation:

Given that,

U={x|  x is real number}

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B={x| x∈ U and 2x>10}

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If 5∈ A, Then it will be satisfies x+2>10 , but 5+2<10.

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If 9∈ A, Then it will be satisfies x+2>10 , but 9+2=11>10.

Similarly, If 9∈ B, Then it will be satisfies 2x>10.  2.9=18>10.

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3 0
2 years ago
What times what equals 11
11111nata11111 [884]
0.5x22=11. To get answers like that, all you have to do is divide 11 by anything and then that number times the number you divided 11 by will give you the answer. So like 11 divided by 4 is 2.75. So 4x2.75=11.

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