Question

The length of the Amazon River in South America is 6, 400 kilometers. What is the length written in scientific notation?

Answer 1

Answer:

A . 6.4 x 10 2 km B . 6.4.

Explanation:

Answer 2

The length written in scientific notation is 6.4*10^3 km.

What is Scientific notation?

It means that the way of expressing and mentioning the small or large kind of number in the decimal form. Here we simply multiplied the real number with the power of 10.

Since The length of the Amazon River in South America is 6, 400 kilometers.

So,

6400/1000 = 6.4

1000 = 10^3

So, it can be 6.4*10^3 km.

Therefore, The length written in scientific notation is 6.4*10^3 km.

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