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faust18 [17]
3 years ago
8

whats the constant of proportionality of this table? and also write a direct variation equation for the table after you find the

constant

Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0

Answer:double the number

Step-by-step explanation:

zvonat [6]3 years ago
7 0
Multiply the number by itself
Ex:
2x2=4
3x3=9
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Step-by-step explanation:

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The function Q(x)=2x^2-kx+18. For what value of k does Q(x) have one distinct real solution? (NEEDS TO BE DONE WITHIN 2 HOURS!)
Aliun [14]

Answer:

k = 12

Step-by-step explanation:

Given:

The equation Q(x)=2x^2-kx+18

To find:

Value of k = ? for which the given equation has one distinct real solution.

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The given equation is a quadratic equation.

There are always two solutions of a quadratic equation.

For the equation: ax^{2} +bx+c=0 to have one distinct solution:

b^2 - 4ac = 0

Here,

a = 2,

b = -k and

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Putting the values, we get:

(-k)^2 - 4\times 2\times 18 = 0\\\Rightarrow k^2 = 18\times 8\\\Rightarrow k^2 =144\\\Rightarrow k = 12

The equation becomes:

Q(x)=2x^2-12x+18

And the one root is:

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