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balu736 [363]
3 years ago
15

write an equation of the line that is parallel to the line whose equation is 4y+9=2x and passes through the point (7,2)

Mathematics
1 answer:
Liula [17]3 years ago
7 0
Ok so we’ll put the first equation into slope int form

4y=2x-9

y=1/2x -4/9

since the likes are parallel, the slope of the line we are trying to write an equation for is 1/2

equation:

y-2=1/2(x-7)
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Match the pairs of equations that represent concentric circles. Tiles
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(x - xc)^2 + (y - yc)^2 = r^2.

So, if you have that equation you can inmediately tell the coordinates of the center and the radius of the circle.

3) You can transform the equations given in your picture to the form (x -xc)^2 + (y -yc)^2 = r2 by completing squares.

Example:

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rearrange: 3x^2 + 12x + 3y^2 - 6y = 21

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equation: 4x^2 + 4y^2 + 16x - 8y - 308 = 0

rearrange: 4x^2 + 16x + 4y^2 - 8y = 308

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5 0
3 years ago
Please help!! Due really soon!
Alisiya [41]

9514 1404 393

Answer:

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Differences in y-values (second row) are 6, 6, 6.

The constant ratio of differences (6/1) tells you the function is linear, and has a slope of m = 6/1 = 6.

Using the first point in the form ...

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Then the equation can be written ...

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Step-by-step explanation:

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The graph shows a probability distribution. What is P(1.5 ≤ X ≤ 3)? Enter your answer, as a decimal, in the box.
Bumek [7]
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Thus, <span>P(1.5 ≤ X ≤ 3) = 1.5/3 = 0.5
</span>
5 0
3 years ago
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