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

Mathematics

1 answer:

Ainat [17]3 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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The sum of 3 consecutive odd integers is 18 less than five times the middle number. Find the three integers

Andreyy89

n, n + 2, n + 4 - three consecutive odd ntegers

n + (n + 2) + (n + 4) = 5(n + 2) - 18 |use distributive property

n + n + 2 + n + 4 = (5)(n) + (5)(2) - 18

3n + 6 = 5n + 10 - 18

3n + 6 = 5n - 8 |subtract 6 from both sides

3n = 5n - 14 |subtract 5n from both sides

-2n = -14 |divide both sides by (-2)

n = 7

n + 2 = 7 + 2 = 9

n + 4 = 7 + 4 = 11

Answer: 7, 9, 11.

8 0

3 years ago

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elena-14-01-66 [18.8K]

Answer:

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See image.

Step-by-step explanation:

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