Question

Write 8.428 showing three significant figures. Remember to round.

Answer 1

hi there :) this is basically just rounding

Answer 2

if you want three significant figures, then that means you want to have three numbers left by the time you're done rounding

Now you remember the rounding rules, right? @sarahprincess98 ?

Answer 3

not so much

Answer 4

alright

so if you have a non-significant figure number that is less than 5, you don't round up the number stays the same

for example: 3.673 would become 3.67 (three sig. figures...no rounding)

or if your number is 5 and greater (5-9), you would round up

for example: 7.839 would become 7.84 (three sig. figures...rounded up)

Note: things generally do not round down

Answer 5

based from these rules, do you think you can answer? @sarahprincess98 ?

Answer 6

so the answer would be 8.42?

Answer 7

@Jamierox4ev3r

Answer 8

think again; the 8 at the end of the non-rounded number is greater than 5, so that means you round up

Answer 9

8.43

Answer 10

yes! that's correct :)

Answer 11

yay thank you :)