A. Cual De Las Siguientes Medidas No Se Debería Escribir En Notación Científica:
1 answer:
Answer:
<h3>A. </h3>Scientific notation is used to express large numbers into a smaller expression without losing important aspects of the number and its representation. Examples of large numbers are: the number of stars in a galaxy, the numbers of grain sands on a beach, the popoulation of a country.
However, the speed of a car doesn't need scientific notation, beacuse it can't be a large number.
Therefore, the right asnwer here is "Velocidad de un Carro".
<h3>B.</h3>The given number is .
This number is not correct, because, according to the rules of scientific notations, the coefficient of the power must be from 1 to 9, and here we have 0.9, which is out of such interval.
<h3>C.</h3>If we use an exponent between 0 and 1, the ten power would decrease. But, if we use exponents greater than 1, that means the ten power will increase. That's the difference between.
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We can simplify the expression by using exponent properties, and we will see that the correct option is the fourth option.
<h3>How to simplify the expression?</h3>Remember the exponent property:
Here we have the expression:
We can reorder this to get:
The right side can be simplified to:
Now, we can move the decimal point one time to the left and increase the exponent by one, so we get:
Then we conclude that the correct option is the last one (where I rounded the expression to only 3 values after the decimal point).
If you want to learn more about scientific notation:
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