Question

Please help :) thanks :)

Answer 1

1. 5417.412

2. 401.13

Explanation:

1. First, rewrite

`5* 10^3+4* 10^2+1* 10^1+7* 10^0+4* (1)/(10^1)+1* (1)/(10^2)+2* (1)/(10^3)`

as

`5* 1000+4* 100+1* 10+7* 1+4* 0.1+1* 0.01+2* 0.001`

So, this is

`5000+400+10+7+0.4+0.01+0.002\\ \\=5417.412`

2. First, rewrite

`4* 10^2+1* 1 (1)/(10^1)+3* (1)/(10^2)`

as

`4* 10^2+1* 1 +1* (1)/(10^1)+3* (1)/(10^2)`

This is

`4* 100+1* 1+1* 0.1+3* 0.01`

So, this is

`400+1+0.1+0.03\\ \\=401.13`