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Stolb23 [73]
3 years ago
7

Where does the line y = -4x + 9 cross the y-axis?

Mathematics
1 answer:
Zanzabum3 years ago
7 0

Answer:

slope is -4 y-axis is 9

Step-by-step explanation:

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Find the center and radius of the circle whose equation is x 2 + y 2 + 10x − 1
Margaret [11]

we conclude that the center of the circle is the point (-5, 0).

<h3>How to find the center of the circle equation?</h3>

The equation of a circle with a center (a, b) and a radius R is given by:

(x - a)^2 + (y - b)^2 = R^2

Here we are given the equation:

x^2 + y^2 + 10x - 1 = 0

Completing squares, we get:

x^2 + 10x + y^2 = 1

Now we can add and subtract 25 to get:

x^2 + 10x + 25 - 25 + y^2 = 1\\\\(x + 5)^2 -25 + y^2 = 1\\\\(x + 5)^2 + (y - 0)^2 = 26

Comparing that with the general circle equation, we conclude that the center of the circle is the point (-5, 0).

If you want to learn more about circles:

brainly.com/question/1559324

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2 years ago
Need help help for 30 points
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It would be 2.4 times 10. I got this answer because there is 24 shaded in, so I divided it by 10 and got 2.4. The other answers could also be 6 times 4, 8 times 3, 2 times 12, 1 times 24.                                           I hope this helps. <3
8 0
3 years ago
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If a rectangular region has perimeter p inches and area a square inches, is the region square?
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What value of m makes the triangles similar?
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Payton goes shopping. She finds two shirts. One costs $24.97 and the other costs $13.75. She needs to know if she has enough mon
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Answer:Explained

Step-by-step explanation:

Given

One shirt cost $24.97 and other costs $13.75

Using mental math, Payton rounds $24.97 to $25

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in order to get correct total of two shirts Payton needs to subtract $0.03 from the final amount as she round 0.97 to 1 initially

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3 years ago
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