Question

Which answer shows 9 times 10 Superscript negative 5 written in standard form? –0. 000009 –0. 00009 0. 0009 0. 9.

Answer 1

By applying basic concepts of powers of numbers we got that $9\times10^{-5}$ is equal to 0.00009

What is power?

The power of a number says how many times to use the number in a multiplication

Here given number is

$9\times10^{-5}$

We can write it as

$\frac{9}{10^5}$

We know that

$10^5=100000$

Hence we can write given number as

$\frac{9}{100000}$

And now after dividing we write it as

0.00009

By applying basic concepts of powers of numbers we got that $9\times10^{-5}$ is equal to 0.00009

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