Question

Here are the approximate populations of three countries, expressed in scientific notation: Panama: 4 x 10^6, Peru: 3. 2 x 10^7, Thailand: 7 x 10^7. Decide what power of 10 to put on the label for the rightmost tick mark of this number line so that all three countries’ populations can be distinguished. Number after ^ is an exponent

Answer 1

Using scientific notation, considering that Thailand has the larger population, the power of 10 that should be on the label is of 7.

What is scientific notation?

A number in scientific notation is given by:

$a \times 10^b$

In this b is the power of 10 and the base a is in the following interval:

$a \in [1, 10)$.

In this problem, considering that both Thailand and Peru population's have exponent 7, and Panama's population is of $4 \times 10^6 = 0.4 \times 10^7$, the power of 10 that should be on the label is of 7.

More can be learned about scientific notation at https://brainly.com/question/26482653