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3 years ago

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What is the sum of 12 1/4 and it’s additive inverse?

1 answer:

aalyn [17]3 years ago

5 0

Given :

A number $12\dfrac{1}{4}=\dfrac{49}{4}$ .

To Find :

What is the sum of 12 1/4 and it’s additive inverse .

Solution :

Fist we should know what is additive inverse .

Additive inverse of a number is that number , when added to it yield zero ,

Basically , for a real number , it reverses its sign :

The opposite to a positive is negative .

The opposite to a negative is positive .

Therefore , the sum of $12\dfrac{1}{4}$ and it's additive inverse is 0 .

Hence , this is the required solution .

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$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

Step-by-step explanation:

We know that the sample proportion have the following distribution:

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$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

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