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Vika [28.1K]
3 years ago
8

Find the center and radius of x2 + y2 + 2x - 10y + 10 = 0

Mathematics
1 answer:
DanielleElmas [232]3 years ago
4 0
In order to do this you can  <span>factorise it to get
(x+1)^2 + (y-5)^2 = 16 = 4^2
hence centre is (-1,5) and radius is 4
</span>I hope this is what you are looking for
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Answer:

x-0.33x  = 0.67x

Step-by-step explanation:

Given :  A new soup recipe contains 33% less sodium per serving than the old soup recipe.

The old soup recipe contained x milligrams of sodium per serving.

To Find: Which of the following expressions could represent the amount of sodium per serving, in milligrams, in the new soup recipe

Solution :

Since we are given that old recipe contains x milligrams of sodium per serving

And new recipe  contains 33% less sodium per serving than the old soup recipe.

So, 33%of x = 0.33x

Since new recipe contains 33% less sodium than old recipe:

⇒x-0.33x

or

⇒(1-0.33)x

⇒0.67x

Thus expressions which could represent the amount of sodium per serving, in milligrams, in the new soup recipe :

x-0.33x or 0.67x

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Step-by-step explanation:

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