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ch4aika [34]
3 years ago
15

What equation has the solution x= 5+2 square root of 7 divided 3

Mathematics
1 answer:
Paraphin [41]3 years ago
7 0
Put it in the calculator and the answer is 3.4305
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Determine whether f(x) = –5x^2 – 10x + 6 has a maximum or a minimum value.
Blizzard [7]

First,

We are dealing with parabola since the equation has a form of,

y=ax^2+bx+c

Here the vertex of an up - down facing parabola has a form of,

x_v=-\dfrac{b}{2a}

The parameters we have are,

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Plug them in vertex formula,

x_v=-\dfrac{-10}{2(-5)}=-1

Plug in the x_v into the equation,

y_v=-5(-1)^2-10(-1)+6=11

We now got a point parabola vertex with coordinates,

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From here we emerge two rules:

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So our vertex is minimum value since,

a=-5\Longleftrightarrow a

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I think its true

Step-by-step explanation:

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