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FromTheMoon [43]
3 years ago
12

Someone pls help me with this I will make you brain

Mathematics
2 answers:
never [62]3 years ago
8 0

Answer:

it is A the first one welcome pls mark as brainliest hope this helps

Step-by-step explanation:

V125BC [204]3 years ago
7 0
The correct answer is A
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Mrs. Culland is finding the center of a circle whose equation is x2 + y2 + 6x + 4y – 3 = 0 by completing the square. Her work is
andrew11 [14]

The correct answer is:

(x + 3)^2 + (y + 2)^2 = 4^2, so the center is (–3, –2)

Further explanation:

The given equation of circle is:

x^2+y^2+6x+4y-3 = 0

In order to complete the square the terms have to be combined first

x^2+y^2+6x+4y = 3\\x^2+6x+y^2+4y=3\\(x^2+6x)+(y^2+4y) = 3

9 and 4 will be added to both sides of the equation to complete the square

(x^2+6x+9)+(y^2+4y+4) = 3+9+4\\(x^2+6x+9)+(y^2+4y+4) = 16

The next step completes the work

(x+3)^2+(y+2)^2 = (4)^2\\

Comparing with the standard form of circle

(x-h)^2 + (y-k)^2 = r^2\\x - h = x+3\\h=-3\\y-k = y+2\\k = -2

As the centre is (h,k), the centre of given circle will be:

(-3,-2)

Hence the correct answer is:

(x + 3)^2 + (y + 2)^2 = 4^2, so the center is (–3, –2)

Keywords: Circle, Equation of Circle

Learn more about equations of circles at:

  • brainly.com/question/3055705
  • brainly.com/question/3333996
  • brainly.com/question/3456442

#LearnwithBrainly

4 0
3 years ago
Can yall help me with this? 3(5+-x)
LUCKY_DIMON [66]

Answer:

15 - 3x

Step-by-step explanation:

3 X 5 = 15

3 X -x = -3x

answer is 15-3x

5 0
3 years ago
Read 2 more answers
HELP ASAP PLEASE!! The table shows the numbers of ships that visited a port in the past 5 years. Identify a polynomial function
shtirl [24]

Answer:  the answer 2nd one

8 0
3 years ago
Read 3 more answers
100 and brainliest if you tell me ur favorite anime :]
Bad White [126]

Answer:

my fav anime is naruto :)

Step-by-step explanation:

3 0
3 years ago
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What I need to know is how to find x and y values by representing the answers in simplest radical form where necessary
Maru [420]

Answer:

x = 0.6623

y = 8

Image is attached for refernce of my solution

Step-by-step explanation:

In Δ DEF

By applying pythagoras theoram,

DE = \sqrt{EF^{2} - DF^{2}  }

     =\sqrt{17^{2} - 15^{2}  }  = \sqrt{289 - 225}  = \sqrt{64}  =8

∴ DE = 8

In Δ ABC

BC = y = 12 sin 30° = 6

AC = \sqrt{3} + DE + x = \sqrt{3} + 8 + x = 12 cos 30°

⇒ 9.73 + x = 10.39

<h3>⇒ x = 0.6623</h3>

6 0
3 years ago
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