Tuesday

September 30, 2014

September 30, 2014

Total # Posts: 242

**9th Grade Biology**

Has plant life on earth evolved and have rose bushes always been around on earth?
*May 31, 2009*

**Algebra 1**

I need help simplifying these expressions. 1/3 + 2/x= 3/x 2/5 - 3/x=1/5x 3/x+1 - 1/x=1/2 4/x+1=3/x+2 x/x+3= x-2/x 2x^2-4x/x-2 5x/2 times 1/x 12x/5 divided by 6x/7
*May 17, 2009*

**5th grade**

Pleasee! I have a worksheet with me and i need to know how to do range and mode, somebody please tell me!
*April 30, 2009*

**math**

sorry!! range***
*April 30, 2009*

**math**

please!!! i forget!! how do u do rnage? How do u do mode?!?!
*April 30, 2009*

**5th grade Math**

th awnswer is this 1/2
*April 26, 2009*

**Latin**

Whoops I forgot I posted this before I apologize
*April 7, 2009*

**Latin**

I'm just a little confused about this translation my book gave me. My book said "Litteris victoriam nuntiant" means they report the victory by means of a letter. Wouldn't this be they report the victory by means of letters? Am I incorrect or is the book? ...
*April 7, 2009*

**Latin**

My book says the setence "litteris victoriam nuntiant" means they report the victory by means of a letter. Why is letter pluralized in this sentence? Thank you.
*April 7, 2009*

**Chemistry**

Thanks for the explanation. WOuld the answer then be 10.23?
*April 7, 2009*

**Chemistry**

Would you mind checking these mole/unit conversion problems over? I understood them in class today, but that was hours ago, so now I need to start all over again. How many moles of GaBr3 are in 983 grams? I got 983g times 1mole/309.42, which equaled 3.18. Is this correct? If ...
*April 7, 2009*

**Chemistry**

Thank you so much. That was really easy to understand.
*April 6, 2009*

**Chemistry**

I am figuring out how many moles of CU2SO4 are in 485.6 grams. How would you set up the proportion for this? What would the answer then be. Thanks. I really need an example to jumpstart this worksheet.
*April 6, 2009*

**Science**

I am balancing out ions. If you have Zn^2+ and PO4^-3, would they balance out to Zn3 (PO4)^2? Thanks for checking this.
*April 2, 2009*

**Chemistry**

I was reviewing chem equations online. This one site said this is a balanced equation. I don't see why there are 13 oxygens! thirteen times two would equal 26, and there aren't 26 oxygens on the other side. Who's correct and why? Thank you for your help. 4C2H5F+...
*April 2, 2009*

**math**

same problem and the only reason someone would cuss would be because they are stupid and do not know what kind of words to use. so there~
*March 30, 2009*

**calculus-optimazation**

The sum of the perimeters of an equliateral triangle and square is 10. Find the dimensions of the triangle and square that produce a minimum total area.
*February 25, 2009*

**Algebra**

Snape has 2000 mL of a magic potion that is 30% DeMuggle Juice. He also has hundreds of 25 mL bottles that are full of 75% DeMuggle Juice solution. Every time he waves his wand, one of these bottles is added to his magic potion. How many times must he wave his wand to have a ...
*February 6, 2009*

**Algebra**

Graph the inequality 4x - y/2 < 6. I don't know how to start... would multiplying each side by 2/1 work? Thank you!
*February 6, 2009*

**social health**

what are the definitions of the three health things on the triangle??
*February 4, 2009*

**english**

thank you so much for your help!
*February 2, 2009*

**english**

thanks is it do know?
*February 2, 2009*

**english**

know the meaning?
*February 2, 2009*

**english**

what is the verb phrase in this sentence-Do you know the meaning of its letters?
*February 2, 2009*

**english**

okay thankyou!
*February 2, 2009*

**english**

which principle part of the verb hear is used in this sentence-You problably have heard the name unesco
*February 2, 2009*

**Math**

i got -7 1/7 thankyou!
*January 21, 2009*

**Math**

What is te result when the reciprocal of -1/7 is increased by the negative of 1/7?
*January 21, 2009*

**English**

The Book: The Wizard of Earthsea by Ursula. Vech possesses a "greater, unlearned skill." What is it? (Hint) In Chapter 3 or 4.
*December 26, 2008*

**algebra**

thankyou, how would i express this as a compound inequality?
*November 24, 2008*

**algebra**

susie has designed an exercise program for herself. one part requires her to walk between 25 and 30 miles each week. she plans to walk the same distance each day five days a week. what is the range of miles that she should walk each day? write and solve a compound inequality ...
*November 24, 2008*

**calculus**

Differentiate the function f(x) = 186.5
*October 14, 2008*

**calculus**

Prove that d/dx(cot x)= -csc^2x
*October 14, 2008*

**Social Studies**

Explain in what ways ideological beliefs and modern concerns for human rights and justice are challenging the traditional beliefs and practices of the communist state on china
*April 2, 2008*

**geometry**

I'm having trouble with an assignment that asks me to design a structure so that the sumof the measures of hte interior angles of all the individual convex polygons is 4500 degrees. i'm souppoused to have a triangle a hexagon an octagon and a rectangleall that adds up ...
*February 11, 2008*

**math**

-8.25 thanks!
*October 1, 2007*

**math**

what is c equal to 4(1.5c + 6) - 2c = -9
*October 1, 2007*

**science**

How was the planet Jupiter made? It is not known. (Broken Link Removed) While it's true thre are mysteries (and the site given above is 6 years old) the following site may help you to get the assignment done. http://juno.wisc.edu/science_history.html
*May 28, 2007*

**Algebra I**

16y^{2}-40y+? I really need to figure out what the question mark is, but I am so confused. You are probably studying completing the square. Study the result of something like (5x-6)^2 the result is 25x^2 - 60x + 36 notice if you take the square roots of the first and last ...
*May 3, 2007*

**chem**

For the reaction 3NO2 + H2O 2HNO3 + NO, how many grams of HNO3 can form when 1.00 g of NO2 and 2.25 g of H2O are allowed to react? This is a limiting reagent problem. 1. Write the equation. You have done that and it is balanced. 2. Convert 1.00 g NO2 and 2.25 g H2O to ...
*February 28, 2007*

**Math-approximation with fractions:7th grade math**

oh i think i have that same ? i have this paper that a teacher gave me ugggh its sooooooooo HARD!!!!!!!!!!!!!!!!!!!!!
*November 19, 2006*

**US History help**

when does a person or family become American? If you mean a United States citizen, either at birth (in the USA or abroad to at least one USA citizen parent), or when "naturalized" by having a certain period of legal residency, applying, passing an examination and ...
*September 4, 2005*