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Anika [276]
3 years ago
8

Which point is on the circle centered at the origin with a radius of 5 units?

Mathematics
2 answers:
egoroff_w [7]3 years ago
5 0

Answer:2, square root of 21 just took the test!

Step-by-step explanation:

Aleonysh [2.5K]3 years ago
3 0

Answer:

(2,√21)

Step-by-step explanation:

The circle centered at the origin has equation:

{x}^{2}  +  {y}^{2}  = 25

Any point that satisfies this equation lie on this circle.

When x=2, we substitute and solve for y.

{2}^{2}  +  {y}^{2}  = 25 \\ 4 +  {y}^{2}  = 25 \\  {y}^{2}  = 25 - 4 \\ {y}^{2}  = 21

Take square root to get:

y =  \pm \sqrt{21}

Therefore (2,-√21) and (2,√21) are on this circle.

From the options, (2,√21) is the correct answer

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Answer:

look at the explanantion <33

Step-by-step explanation:

so negative numbers are basically numbers with minus signs in front of them. So when you add a negative number, its basically like subtracting a number. so by adding negative three, youre subtacting 3.

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Step-by-step explanation:

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4 years ago
Write an inequality using absolute value if the answer is given double inequality:
gayaneshka [121]

Answer:

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Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/4282353-what-are-the-solutions-to-the-absolute-value-inequality-x-70-3.html

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