Question

Omar measures one machine part with length 4.392 centimeters and another part with length 6.82 centimeters what is the difference in length use estimation to check your answer for reasonableness

Answer 1

Explanation:

Answer 2

`\bigtriangleup=2.4\ cm`

Explanation:

-The difference in length is calculated by subtracting as:

`\bigtriangleup=6.82-4.392\\\\=2.428\ cm`

-To estimate the length difference, we use the given lengths rounded off to the nearest tenth of a centimeter:

`\bigtriangleup=6.8-4.4\\\\=2.4\ cm`

-The two differences are reasonably close to each other and an exact match when rounded off to the nearest tenth:

`2.428\approx2.4\ cm =2.4\ cm`