Asked by Gabby

A student measures the volume of a liquid and finds it to be 40mL. How many significant figures are in the measurement?

1 ***
2
3
4

Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 m wide by 15.0 m long.
212 m^2***
211.5 m^2
29.1 m
29.10 m

Am I right or wrong?

Answers

Answered by DrBob222
I think you are right.
Many may argue with the first one and suggest 40 has two s.f. To have two, however, it should be written as 40. where the . is not the end of the sentence. To avoid confusion many would write that as 4E1 to show the one s.f. and not two.
Answered by Gabby
Ok but in all I'm right?
Answered by DrBob222
That's what I said, you are right.
Answered by Payton
So the answer is A or is it B
Answered by Anonymous
it is 212 m^2 i just took the quiz
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