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FrozenT [24]
3 years ago
9

When graphed, the circle with equation

Mathematics
1 answer:
Andrei [34K]3 years ago
3 0

Answer:

the correct answer is C

Step-by-step explanation:


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Hey i know this question is linked to Pythagorean theorem but i am still confused. So, please help me if you can ❤️
antiseptic1488 [7]

Step-by-step explanation:

From Pythagorean theorem, one of the sides can be determined as x^2 + y^2 =8^2

or y = (8^2 - x^2)^(1/2)

we can write the perimeter P as

P = 2x + 2y ---> 20 = 2x + 2(8^2 - x^2)^(1/2)

Dividing by 2, we get

10 = x + (8^2 - x^2)^(1/2)

Move the x to the other side,

10 - x = (8^2 - x^2)^(1/2)

Take the square of both sides to get rid of the radical sign:

(10 - x)^2 = 8^2 - x^2

Move everything to the left and expand the quantity inside the parenthesis:

x^2 + (100 - 20x + x^2) - 64 = 0

2x^2 - 20x + 64 = 0

or

x^2 - 10x + 32 = 0

Now we can see that a = -10 and b = 32

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2 years ago
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vladimir1956 [14]

Answer:

<h2>0.75</h2>

Step-by-step explanation:

I hope this helps

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The circumference of a circle is 9piem what is the area
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Step-by-step explanation:

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A liter of water contains about 3.35•10^25 molecules. A certain river discharges about 2.3•10^7 litter of water every second. Ab
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Answer:

Jaylynn draws a hen with a scale of

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Step-by-step explanation:

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3 years ago
Ellen flipped a coin 80 times. the coin landed heads up 44 times and tails up 36 times. what is the theoretical probability of l
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36/80 chance of landing on tails, or a 45% chance .

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