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kompoz [17]
3 years ago
5

Find the center of the circle whose equation is x² - 10x + y² - 10y = -1 A)(5,5) B)(10,10) C)(10,1)

Mathematics
1 answer:
Tcecarenko [31]3 years ago
3 0
You need to complete the square and then flip the signs and you'll have your answer:

(x - 5)² - 25 + (y - 5)² - 25 = -1

(x - 5)² + (y - 5)² - 50 = -1

(x - 5)² + (y - 5)² = 49

x = 5, y = 5

Therefore your answer is (5,5).

The radius is also the square root of whatever the equation is equal to (root 49 = 7).


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azamat

Answer:

(x + 2)²(x - 3)² = 0

Step-by-step explanation:

Since we have a degree of 2 and double of the same roots, we know that each root would have a multiplicity of 2. Therefore, our answer is(x + 2)²(x - 3)² = 0

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3 years ago
How many times go into 7/8 pounds in 4
lidiya [134]
As the only prime factor of denominator is
2
, in fact there are three twos (
2
×
2
×
2
) we can can convert the fraction
7
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by multiplying numerator and denominator by
5
×
5
×
5
.
Hence,
7
8
=
7
×
5
×
5
×
5
8
×
5
×
5
×
5
=
875
1000
=
0.875

(This is always possible if only prime factors of denominator are
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7 0
3 years ago
95 POINTS FOR AWNSER
kari74 [83]

Answer:

yes \: he \: is \: correct \\   \underline{\boxed{(\triangle{ \delta}) = 8}}

Step-by-step explanation:

change \: in \: temp. \: ( \triangle{ \delta}) = t_2 - t_1 \\ hence \to \\( \triangle{ \delta}) =  (- 2) - (- 10) \\ (\triangle{ \delta}) =  - 2 + 10 \\ (\triangle{ \delta}) = 10 - 2 \\ (\triangle{ \delta}) = 8

7 0
3 years ago
Read 2 more answers
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