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Tcecarenko [31]
3 years ago
10

Factorise the following 5y^2-20y-8z+2yz

Mathematics
1 answer:
andre [41]3 years ago
8 0

Answer:

(5y+2z)(y-4)

Step-by-step explanation:

5y^2-20y-8z+2yz=\\5y^2-20y+2yz-8z=\\5y(y-4)+2z(y-4)=\\(5y+2z)(y-4)

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Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options.
Alla [95]

Considering the given equation of the circle, the true statements are given as follows:

  • The radius of the circle is of 3 units.
  • The center of the circle lies on the x-axis.
  • The circle has the same radius as the circle with equation x² + y² = 9.

<h3>What is the equation of a circle?</h3>

The equation of a circle of center (x_0, y_0) and radius r is given by:

(x - x_0)^2 + (y - y_0)^2 = r^2

The equation given is:

x2 + y² - 2x - 8 = 0.

Completing the squares, the equation is given as follows:

(x - 1)² + y² = 8 + 1

(x - 1)² + y² = 9.

Researching the problem on the internet, the true statements are:

  • The radius of the circle is of 3 units.
  • The center of the circle lies on the x-axis(y_0 = 0).
  • The circle has the same radius as the circle with equation x² + y² = 9.

More can be learned about the equation of a circle at brainly.com/question/24307696

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8 0
2 years ago
Can anyone give me any answers for the first 2 in each coloured section please
blsea [12.9K]
A.) x=5

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D.) x=2

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J.) x=8

K.) x=9

L.) x=5

M.) fraction form; x=36/7 decimal form; x=5.142857 Mixed number form; x= 5 1/7

N.) x=7



Hope this helps
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Step-by-step explanation:

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Step-by-step explanation:

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