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gtnhenbr [62]
3 years ago
11

Find the value of this expression if x= 3 x^2+4/x

Mathematics
1 answer:
TEA [102]3 years ago
7 0

Answer:

The answer is x= -1

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What is an equation of the line that is parallel to y=3x-8 and passes through the point, (4,-5)
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Answer:

y= 3x-17

Step-by-step explanation:

When finding a parallel equation to y=mx+b, mx will always stay the same. So we have to find b.

In order to do this you plug the parallel lines passing point into the equation.

-5(y) goes into the y's spot. 4(x) goes into the x's spot.

-5 = 3 x 4 + b

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tino4ka555 [31]

Answer:

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Step-by-step explanation:

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How many real solutions does this system of equations have? xy = 9<br> y = 3x - 1
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Answer:

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Step-by-step explanation:

y is definied as y = 3x - 1.  Substitute 3x - 1 for y in xy = 9, obtaining:

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Calculating the discriminant b^2 - 4ac, we get (-1)^2 - 4(3)(-9), or 1 + 108, or 109.  Because the discriminant is positive, we have two real, unequal roots.

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