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3 years ago

PLZ HELP!! Algebra is not my thing, 30 points!! 5x + 2 = 3x + 4(2x - 1)

Mathematics

1 answer:

ira [324]3 years ago

8 0

Answer:

$5x + 2 = 3x + 4(2x - 1) \\ 5x + 2 = 3x + 8x - 4 \\ 3x + 8x - 5x = 2 + 4 \\ 6x = 6 \\ \boxed{x = 1}$

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Step-by-step explanation:

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3 years ago

Find the equation of the circle with a diameter whose end points are (-1,-2) and (-3,2)

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Step-by-step explanation:

Explanation:-

Step 1:-

The equation of the circle having center and radius is

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

here center is (h,k) and radius is r

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The diameter of the circle is passing through the center of the circle

so center of the circle = midpoint of two end points

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therefore center (h,k) = (-2,0)

Step 2:-

we have to find the radius of the circle

the radius of the circle = the distance from center to the one end point

i.e., C P = r

Given one end point is P(-3,2) and center C(-2,0)

The distance formula of two points are

$\sqrt{(x_{2}-x_{1} ) ^{2}+ (y_{2}-y_{1} ) ^{2}}$

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Step 3:-

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The standard form of circle equation

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

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on simplification is

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Answer:

Do you have a photo

Step-by-step explanation:

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