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3 years ago

For what values of the variable is each rational expression undefined 2x-3/2x-1( step by step please)

2 answers:

6 0

$\frac{2x-3}{2x-1}\\\\Rational\ expression\ unde fined\ if\ 2x-1=0\\\\2x=1\ \ \ \ /:2\\\\x=\frac{1}{2}\leftarrow answer$

swat323 years ago

3 0

'Undefined' typically means division by zero ... what some people would
look at and call it "infinity".

Any fraction is undefined when its denominator is zero.

2x - 1 = 0

Add 1 to each side:

2x = 1

Divide each side by 2 :

<u>x = 1/2 .</u>

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Hitman42 [59]

Answer:

The probability of cured people in who took the remedy is 8/9.

Step-by-step explanation:

Success rate of the cold remedy = 88%

The number of people who took the remedy = 45

Now, 88% of 45 = $\frac{88}{100} \times 45 = 39.6$

and 39.6 ≈ 40

So, out of 45 people, the remedy worked on total 40 people.

Now, let E: Event of people being cured by cold remedy

Favorable outcomes = 40

$\textrm{Probability of Event E} = \frac{\textrm{Total number of favorable outcomes}}{\textrm{Total outcomes}}$

or, $\textrm{Probability of people getting cured} = \frac{\textrm{40}}{\textrm{45}}$ = $\frac{8}{9}$

Hence, the probability of cured people in who took the remedy is 8/9.

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3 years ago

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sesenic [268]

D 12
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QveST [7]

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3 years ago

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monitta

Hey there!

The answer is $50 because $20 is 40%, so times that by 2 which you get $20 and 80%. Then you divide 20 by 2 then you get 10 which is 20% so you add 10 and you get $50 which is 100%

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3 years ago

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kirill [66]

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Step-by-step explanation:

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