Question

Please help :) thanks :)

Answer 1

Answer:

1. 5417.412

2. 401.13

Step-by-step explanation:

1. First, rewrite

$5\times 10^3+4\times 10^2+1\times 10^1+7\times 10^0+4\times \dfrac{1}{10^1}+1\times \dfrac{1}{10^2}+2\times \dfrac{1}{10^3}$

as

$5\times 1000+4\times 100+1\times 10+7\times 1+4\times 0.1+1\times 0.01+2\times 0.001$

So, this is

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

2. First, rewrite

$4\times 10^2+1\times 1 \dfrac{1}{10^1}+3\times \dfrac{1}{10^2}$

as

$4\times 10^2+1\times 1 +1\times \dfrac{1}{10^1}+3\times \dfrac{1}{10^2}$

This is

$4\times 100+1\times 1+1\times 0.1+3\times 0.01$

So, this is

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