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3 years ago

Help me from 3 through 8

Mathematics

1 answer:

skad [1K]3 years ago

7 0

Answer:

3)x=−9 and x=4

4)x=−12 and x=−5

5)x=8 and x=14

6)x=−7 and x=3

7)x=-1 2/3 and x = 1/4

8)x=2/5

Step-by-step explanation:

Hope this helps

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Whole number:

1. 5

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3. 6

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3 years ago

A circle centered at the origin contains the point

valentina_108 [34]

Answer:

Yes, the distance from the origin to the point (8,√17) is 9 units.

Step-by-step explanation:

The equation of a circle centered at the origin with radius , r has equation:

${x}^{2} + {y}^{2} = {r}^{2}$

Since the circle passes through (0,-9), the radius is 9 units because (0,-9) is 9 units from the origin.

We substitute the radius to get:

${x}^{2} + {y}^{2} = {9}^{2}$

${x}^{2} + {y}^{2} = 81$

If (8,√17) lies on this circle, then it must satisfy this equation:

${8}^{2} + { (\sqrt{17} )}^{2} = 64 + 17 = 81$

This is True.

This means the distance from (8,√17) is 9 units from the origin.

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3 years ago

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Answer:

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4 years ago