Question

A. Cual De Las Siguientes Medidas No Se Debería Escribir En Notación Científica:

Números De Estrellas En Una Galaxia, Números De Granos De Arena En Una Playa, Velocidad De Un Carro O Población De Un País


B. el numero o,9 x 10 elevado a la menos 5 esta escrito correctamente en notación científica ¿por que?


C. Que diferencia hay en el exponente de la potencia de 10 cuando escribes un numero entre o y 1 en notación científica y cuando escribes un numero mayor que uno en notación científica

Answer 1

A.

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".

B.

The given number is
`0.9 * 10^(-5)`.

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.

C.

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.