Question

Which number is the largest? 7.2 ⋅ 10−6, 3.09 ⋅ 103, 2.04 ⋅ 104, 5 ⋅ 103

7.2 ⋅ 10−6
3.09 ⋅ 103
2.04 ⋅ 104
5 ⋅ 103

Answer 1

the equation whit the largest outcome is 5*103=515

Answer 2

Option 3 -
`2.04* 10^4`

Explanation:

Given : Numbers
`7.2* 10^(-6)` ,
`3.09* 10^3`
`2.04* 10^4` and
`5* 10^3`

To find : Which number is largest ?

Solution :

We solve all number in standard form,

1)
`7.2* 10^(-6)=(72)/(10)* (1)/(1000000)`

`7.2* 10^(-6)=0.0000072`

2)
`3.09* 10^3=(309)/(100)* 1000`

`3.09* 10^3=3090`

3)
`2.04* 10^4=(204)/(100)* 10000`

`2.04* 10^4=20400`

4)
`5* 10^3=5* 1000`

`5* 10^3=5000`

The decimal number is the least number among all.

The five digit number is the greatest number among all.

So, 20400 is the greatest number.

Which means
`2.04* 10^4` is the largest number.

Therefore, Option 3 is correct.