# Science- Significant Figures

posted by .

You calculate the area of a 150m x 100.0 m room. How many significant figures should your answer include?

a. 1
b. 2
c. 3
d. 4

2?

• Science- Significant Figures -

No. Area = 150 m x 100.0 m = ?
When multiplying(or dividing) the number of s.f. in the answer is the same as the SMALLEST number of the group. 150 has 3, 100.09 has 4; therefore, the answer may have 3.
Here is a very good site to read for this.
http://www.chemteam.info/SigFigs/SigFigs.html

• Science- Significant Figures -

Doesn't 150 have 2?

• Science- Significant Figures -

Yes the answer is two, because you round it to the least number of sig figs and 150 has 2, and 100.0 has 4. So we would round the complete answer to 2 Sig Figs.

• Science- Significant Figures -

Well, I counted 150 as 3 but it has 3 ONLY if written as 150. or 1.50E3. Sorry about that; you're right. 2 is the right answer and I'm wrong. :-(

• Science- Significant Figures -

• Science- Significant Figures -

thanks guys!!!

## Similar Questions

1. ### Science (Chemistry!)

I just do not understand ANYTHING about multiplying/dividing/adding/subtracting significant figures! For example, the problem is: Solve the following to the correct number of significant figures: (5.039)(0.0074) What am I supposed …
2. ### Significant figures

How would I go and express these numbers with 3 significant figures in normal notation?
3. ### Chemistry

I have a Chemistry question which should be very simple but I do not know what significant figures are. Assuming the following numbers are measurements and using the rules for significant figures, determine the answer for the following …
4. ### chemistry

Suppose you are asked to find the area of a rectangle that is 2.1-cm \rm cm wide by 5.6-cm \rm cm long. Your calculator answer would be 11.76 cm 2 \rm cm^2 . Now suppose you are asked to enter the answer to two significant figures. …
5. ### Math in Science

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

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. If I multiply the two values and round to the nearest whole number, I get 212 m^2. Is this right?
7. ### science

you calculate the area of a 150 m x 100.0 m room. How many significance figures should your answer include ?
8. ### science

you calculate the area of a 150 m x 100.0 m room. How many significance figures should your answer include ?
9. ### Chemistry

Hi guys! I just learned about significant figures today, and I have a question about them. My teacher gave us a problem where all values have what I think is four significant figures (like 44.56) except the value for temperature (which …
10. ### Mathematics in science

Can you check my answers please? 1. A student measures the volume of a liquid and finds it to be 40ML. How many significant figures are in the measurement?

More Similar Questions