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3 years ago

I need help understanding how to solve this problem .

Mathematics

1 answer:

ladessa [460]3 years ago

4 0

5*2x|x|-6=24

10*|x|-6=24

10*|x|=30

Divided both sides of the equation by 10

|x|=3

X=3 X=-3

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Answer:

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Step-by-step explanation:

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3 years ago

A bulb can either be on or off. A board contains connected to a randomization circuit that lights up a random sequence every tim

kari74 [83]

The question is incomplete. The complete question is :

A bulb can either be on or off. A board contains 20 bulbs connected to a randomization circuit that lights up a random sequence every time it is turned on. What is the probability that all the lights will switch on ?

Solution :

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There is board connected to = 20 bulbs

And one can either be put ON or put OFF.

Therefore the chance that a bulb is ON = $\frac{1}{2}$

It is given that every time a bulb turns ON, the board lights up in a random sequence.

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