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Rzqust [24]
3 years ago
15

Simplify the expression.

Mathematics
1 answer:
wlad13 [49]3 years ago
7 0
Coefficient of x is 2
Constant is 12

7y + 4x + 4 - 2x + 8
7y + 2x + 12
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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

#SPJ1

8 0
2 years ago
Help me please due before 10pm tonight
timofeeve [1]

Answer:

If you divided the hours they worked and then add that to what they got all together and u should get the answer

Step-by-step explanation:

i hope this helps a little

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Answer:

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Step-by-step explanation:

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What is the percent of change in the cost of a hot dog?
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