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DochEvi [55]
3 years ago
12

PLEASE HELP X= 8 9 10

Mathematics
1 answer:
maksim [4K]3 years ago
6 0

Answer:

8

Step-by-step explanation:

This can be solved using intersecting chord theorem. This tells us that when 2 chords intersect inside a circle, the 4 segment it creates, each individual segments' products are equal.

Thus, we can say that the product of 5 and x is equal to the product of 10 and 4. Thus:

5*x=10*4\\5x=40\\x=\frac{40}{5}\\x=8

Hence x = 8 is the correct answer

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Answer:

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Step-by-step explanation:

given equation

x^2 +2x +1 = 17

subtracting 17 from both sides

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the solution for quadratic equation

ax^2 + bx + c = 0 is given by

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________________________________

in our problem

a = 1

b = 2

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x =( -2 + \sqrt{2^2 - 4*1*-16}) /2*1 \\x =( -2 + \sqrt{4  + 64}) /2\\x =( -2 + \sqrt{68} )/2\\x = ( -2 + \sqrt{4*17} )/2\\x =  ( -2 + 2\sqrt{17} )/2\\x = - 1 + \sqrt{17}\\and\\\\x = - 1 - \sqrt{17}\\

thus value of x is

x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\

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