Question

(1.18x10^3)x(9.1x10^-6) written in scientific notation

Answer 1

The correct answer is 1.07x10^-2.

In order to find this, we first multiply the lead numbers.

1.18 * 9.1 = 10.7

Then we can simply add the exponents together.

3 + -6 = -3.

Now we put it all together.

10.7x10^-3

However, our number has to be less than 10. So we mov the decimal place one and add one to the exponent.

1.07*10^-2

Answer 2

`(1.18* 10^3)* (9.1* 10^(-6))=1.0738* 10^(-2)`

Explanation:

Given : Expression
`(1.18* 10^3)* (9.1* 10^(-6))`

To find : Write in scientific notation ?

Solution :

Expression
`(1.18* 10^3)* (9.1* 10^(-6))`

Write it as ,

`(1.18* 10^3)* (9.1* 10^(-6))=(1.18* 9.1)* (10^3* 10^(-6))`

`(1.18* 10^3)* (9.1* 10^(-6))=10.738* 10^(-3)`

In scientific notation,

`(1.18* 10^3)* (9.1* 10^(-6))=1.0738* 10^(-2)`