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DENIUS [597]
3 years ago
8

Solve 2x2 – 3x = 12 using the quadratic formula.

Mathematics
1 answer:
icang [17]3 years ago
8 0

Quadratic Formula: (-b +/- sqrt(b^2 - 4ac)) / 2a

2x^2 - 3x = 12

2x^2 - 3x - 12 = 0

a = 2

b = -3

c = -12

(--3 +/- sqrt( (-3)^2 - 4(2)(-12) )) / 2(2)

3 +/- sqrt( 9 + 96 ) / 4

3 +/- sqrt(105) / 4

Answers: \frac{3 + \sqrt{105} }{4}, \frac{3 - \sqrt{105} }{4}

Hope this helps!

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Find the other endpoint of a line segment which one endpoint at (-3, 5) and whose midpoint is (5, 2)
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Anyone know what it is?
lara [203]

Answer:

It is called the median.

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7 0
3 years ago
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Answer:

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A solution for a system of equations entails that all variables are the same. In this case, it means that both x and y must be the same.

Looking at the graph, there is no spot where y=3x+3 and 3x-y=2 intersect

To confirm, we can look at the equations. If we make them both equal to y, we can set them equal to each other.

For y=3x+3, this is already set to y. For 3x-y=2, we can add y to both sides and subtract 2 from both sides to get

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