Question

(True or false )

4328.418 rounded to 2 significant figures is 4328.42
21.87954 rounded to 3 decimal places is 21.88
7.568499 rounded to 3 decimal places is 7.568
0.004122 rounded to 4 significant figures is 0.004

Answer 1

`{\sf{4328.418\: rounded \:to \:2 \:significant \:figures \:is \:4328.42\:\::{{\Red{False}}}`

`{\sf{21.87954\:rounded\: to \:3 \:decimal\: places \:is \:21.88\:\::{{\Green{True}}}`

`{\sf{7.568499\: rounded \:to \:3 \:decimal \:places\: is \:7.568\:\::{{\Green{True}}}`

`{\sf{0.004122 \:rounded \:to\: 4 \:significant\: figures \:is \:0.004\:\::{{\Green{True}}}`

Answer 2

1) false, it's 4300

2) false, it's 21.880

3) true

4) false, it's 0.004122