Friday

February 27, 2015

February 27, 2015

Posted by **help?** on Thursday, September 23, 2010 at 9:18pm.

885.75 g + 10.151 g - 25.50 g

Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter the correct number of significant figures.

(2.700e2 cm)3 / (1.20e3 cm)2

Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter the correct number of significant figures.

95.8 g + 25.555 g + 37.60 g

- math -
**rodney**, Thursday, September 23, 2010 at 9:26pmAnica and her friends are organizing a trip to the skateboarding championships.The bus they will rent to take them there and back will cost $500. Anica estimates that each person will spend $40 for meals and souvenirs.

If p People go on the trip, what will be the total cost for travel,meals,and souvenirs?

- To rodney -
**MathMate**, Thursday, September 23, 2010 at 9:59pmPlease do not tag your question onto someone else's because it will give the impression that the question has been answered, and your own question will not get much attention either.

Please make a new post.

Thank you.

- math -
**MathMate**, Thursday, September 23, 2010 at 10:04pm1.

The least precise number has 4 significant figures, so the answer can be presented to 4 or 5 significant figures for intermediate calculations, and in this particular case where the least significant number is a small number).

885.75 g + 10.151 g - 25.50 g

=870.40

=8.7040e2

Give a try to #2 and #3. Post for confirmation if you wish.

- math -
**Helpful**, Sunday, September 26, 2010 at 1:21pmfor #2 it's

((2.70000e2 cm)^3) / ((1.20e3 cm)^2) = 13.66875 centimeters

**Answer this Question**

**Related Questions**

chemersty - Calculate the value of the following in exponential form, using ...

Chem 10 - Calculate the value of the following in exponential form, using ...

Chemistry - answear in standard exponential form with correct number of ...

7th grade math - 1. The area of Greenland is 840,000 square miles. What is this ...

Physics - Calculate the following, expressing the answer in scientific notation ...

Significant figures - How would I go and express these numbers with 3 ...

Math - 1. Is it more appropriate to use scientific notation for approximates or ...

Chemistry - How you do this? can you do the first one, i'll try the second one ...

scientific notation - Express in scientific notation. Choose the answer with the...

Chem, help please - Consider the reaction N2 + 3H2 in equilibrium with 2 NH3 . ...