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prohojiy [21]
3 years ago
5

NEED HELP TAKING A QUIZ HAVE NO IDEA WILL MAKE YOU BRAINLEST

Mathematics
2 answers:
koban [17]3 years ago
5 0

Answer:

n=3.6

Step-by-step explanation:

VLD [36.1K]3 years ago
3 0

Answer:

x=3.6

Step-by-step explanation:

You subtract 0.68 from 5 and you get 1.2=4.32

Then you put 1.2 under 1.2 and 4.32 to get x on its own on that side you equation now looks like this x=3.6 So that is your answer

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What is the radius of a circle whose equation is X^2 plus Y^2 -10X +6 X +18=0?
frosja888 [35]

ANSWER

The radius is 4

EXPLANATION

The given equation is:

{x}^{2}  +  {y}^{2}  - 10y + 6x + 18 = 0

We complete the square to get the expression in standard form:

{x}^{2}  + 6x +  {y}^{2}  - 10y  + 18 = 0

{x}^{2}  + 6x +  9 + {y}^{2}  - 10y  + 25  =  - 18 + 9 + 25

We factor using perfect squares to get:

{(x + 3)}^{2}  +  {(y - 5)}^{2} =  16

This implies that,

{(x + 3)}^{2}  +  {(y - 5)}^{2} =   {4}^{2}

Comparing to

{(x  - h)}^{2}  +  {(y - k)}^{2} =   {r}^{2}

The radius is r=4

3 0
3 years ago
Please help me with this!
mafiozo [28]
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As it is just a rotation around the origin by 180, you can just change the sign in front of the numbers :)
4 0
3 years ago
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Sauron [17]

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Step-by-step explanation:

7 0
2 years ago
If a basketball is bounced at a angle of 30 degrees, it will bounce off the court at and angle of
Serjik [45]

Answer:

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Step-by-step explanation:

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6 0
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One thousand and twenty students participated in the school math contest.
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Answer:

sample 1: 75

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Step-by-step explanation:

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