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Eva8 [605]
3 years ago
6

Somebody please help​

Mathematics
1 answer:
iren [92.7K]3 years ago
5 0

Answer:

Yes, No, No, No

Step-by-step explanation:

To decide whether the point lies on the circle, what you need to do it simply substituting the x and y values into the equation and check if it add up to be 25

(-5)² + 0² = 25, = RHS  [Yes]

1² + (√7)² = 8, ≠ RHS [No]

(√21)² + (-3)² = 30, ≠RHS [No]

0² + 7² = 49, ≠RHS [No]

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<h3>Answer:  approximately 6.3 miles</h3>

=================================================

Explanation:

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3. d= 20mm

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