Saturday

August 23, 2014

August 23, 2014

Total # Posts: 58

**Math**

I need to use the Gaussian Elimination to solve a system of equations, but I have no idea on how to do that. I remember doing these in high school, but since its been a while I can't remember exactly how to do it. Here's the system of equations I need to solve using it...
*July 20, 2014*

**language art pllz help respond**

yes your answers are correct
*April 30, 2014*

**Science**

just took test 10:c 7:b 6:a 4:d
*March 5, 2014*

**math**

A balanced coin is tossed 12 times and heads appears each time. What is the probability that tails will appear on the next toss?
*January 18, 2014*

**math**

27/296 39/416 43/456
*May 9, 2013*

**Science**

Why don't you check your grades then. You would be able to see how you did right?
*May 7, 2013*

**math**

you can find your own answers by looking through the lesson and rereading. Do Not Cheat On Your Test Or Quiz
*April 10, 2013*

**science **

Why Cheat when You Could Do This By Your self If you Are Looking For Answers then Check your Book for That Information. Your book would have most information on this so don't cheat use a book.
*April 1, 2013*

**Math Grade 4 **

How many rectangles can i make with 12 centicubes? Are there areas and perimeters the same.
*January 9, 2013*

**algebra**

What are the steps to figuring out x and y in 3x + 5y = 39.89 and what does x and y equal in the end?
*January 1, 2013*

**anthropology**

Ethnographic methods are to ethnological methods as to what
*September 2, 2012*

**s.s help**

You should find your own ansers for tests and quizes. You should not cheat.
*April 11, 2012*

**science**

I love how there an advertisment for connections academy on the side of this xD lmao
*April 10, 2012*

**4th grade**

I believe that equals to 11.
*February 28, 2012*

**Art**

Thanks, you helped me Finish Strong!!!!
*February 20, 2012*

**greek philosophy and history**

b goldn mean
*January 21, 2012*

**physics**

4lbs
*January 18, 2012*

**MATH**

8/60= 2/15 lbs
*January 18, 2012*

**calculus urgent help please!**

try some hax.
*January 18, 2012*

**Honors Physical Science**

1. Make smart friends 2. borrow their papers 3. Repeat as needed
*January 18, 2012*

**Physics**

Thanks helped tons:)
*January 17, 2012*

**german**

thought id say that skinny as in skinny jeans would be "schlampe jeans"
*January 16, 2012*

**Math**

nope. try again.
*January 16, 2012*

**english**

the essay needs to be proof read and any suggestions or corrections will be greatly helpful! The Unbiased Killer Caner is known as unbiased killer that knows no race, age or sex of it victims. The disease lung cancer is the Number one cause of cancer deaths for United States ...
*December 17, 2011*

**physics**

If a ball is thrown with a velocity of 25m/s at an angle of 37degrees above the horizontal, what is the vertical component of the veolocity
*October 6, 2011*

**n/a**

why use phenolphthalein instead of methyl violet in a titration?
*October 3, 2011*

**Statistics**

statistics (mean, median, mode): X=3 and the first score is 2 points above and the second score is 4 points above how many points below is the third?
*September 23, 2011*

**math**

A professor wants to supplement her pension with investment interest. If she invests $26,000 at 4% interest, how much more would she have to invest at 8% to achieve a goal of $2,400 per year in supplemental income?
*September 18, 2011*

**math**

A nurse wants to add water to 18 ounces of a 10% solution of benzalkonium chloride to dilute it to an 8% solution. How much water must she add? (Hint: Water is 0% benzalkonium chloride.)
*September 18, 2011*

**math**

close, but not quite.
*August 27, 2011*

**Algebra II**

Use analytical and graphical methods to solve the inequality: x©ø+10x©÷+31x¡Â-30 (2x)/(x+1)¡Â(4)/(x-3)
*July 6, 2011*

**Algebra II**

Determine whether the grapg of the given equation is symmetric with respect to the x-axis, y-axis, and/or the orgin. f(x)=3x²+1 x²+y²=81
*July 4, 2011*

**Chemistry**

What is the theoretical yield of aspirin if you have 2g of salicylic acid and 5 ml acetic anhydride?
*April 19, 2011*

**chemistry**

Concentrated nitric acid is 16M. What volume of nitric acid must be diluted with distilled water to prepare 5L of 0.1M nitric acid?
*March 30, 2011*

**chemistry**

What is the molar concentration of calcium hydroxide that has 0.185g solute in 100ml solution?
*March 12, 2011*

**chemistry**

What volume of a 0.34M MgCL2 solution is required to make 250ml of a 0.10M solution by dilution?
*March 12, 2011*

**chemistry**

How many grams of NaOH are there in 2.5L of a 0.343M solution?
*March 12, 2011*

**chemistry**

How many moles of KBr are there in 35.8ml of a 0.172M solution?
*March 11, 2011*

**chemistry**

How many moles of argon gas are present in 70L of volume with a pressure of 180atm at 21C?
*March 11, 2011*

**chemistry**

A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a volume of 125L?
*March 11, 2011*

**science**

What is the [Pb+2] in a saturated solution of Pb(OH)2 for each of the following initial pH values? Ksp Pb(OH)2 = 2.8x10-16 a. pH = 13.00 b. pH = 9.20
*January 31, 2011*

**computer science**

water vapor
*October 12, 2010*

**Chem**

So dumb bob what the ans.
*October 3, 2010*

**Managerial Economics**

Mirk Labs is a British pharmaceutical company that currently enjoys a patent monopoly in Europe, Canada, and the U.S on Zatab, an allergy medication. The global demand for Zatob is Qd=15.0-0.2P where Qd is annual quantity demanded in millions of units of Zatab, and P is the ...
*April 14, 2010*

**precalculus**

a shipment of 10 microwaves contains 3 defective units. in how many ways can a vending company choose 4 units if: a)all units are good b)2 units are good c) at least 2 units are good
*March 30, 2010*

**pre alebra**

since Area = 2(pi)r^2h, you can find r. take 153.86/(2x5x(pi)) to get 4.897... this is radius. now to get volume use this eqation: v=(pi)r^2h (pi)(4.897...)^2(5)= 376.76...
*March 30, 2010*

**pre-calculus**

Callaway golf Company has determined that the marginal cost C of manufacturing x Big Bertha Golf clubs may be expressed by the quadratic function: C(x) = 4.9^2 - 617.4x + 19,600 How many clubs should be produced to minimize marginal cost?
*October 14, 2009*

**Math 116**

try doing steps to figure it out. use bedmas.. Brakets Exponents Division Multiplication Addition Substitution use that to figure out what to do first.Then gather like terms (all of the numbers with "j" in it can be simplified. and so on , does that help ?
*February 10, 2009*

**math**

i don't really understand what you are saying
*February 10, 2009*

**math**

I need to figure out the next two numbers in the following sequences. A)144, 121, 100, 81, B)3, -12, 48, -192,
*February 10, 2009*

**Chemistry**

If the internal energy of a thermodynamic system is decreased by 300 J when 75 J of work is done on the system, how much heat was transferred, and in which direction, to or from the system?
*November 2, 2008*

**Math**

The weather during Smedley's vacation was strange -- It was cloudy on 13 different days but it was never cloudy for an entire day -- Cloudy mornings were followed by clear afternoons -- Cloudy afternoons were proceded by clear mornings ---There were 11 clear mornings and ...
*August 28, 2008*

** 2 Part of accounting**

no longer need answer to this question!
*July 27, 2008*

**accounting**

no longer need answer to this question!
*July 27, 2008*

**Chemistry**

What is the relationship between the equilibrium and changes of state? You need to be a little more specific. For liquids, for example, in a closed system, the vapor pressure of the liquid reaches equilibrium between the vapor and the liquid.
*April 15, 2007*

**Math**

To make my question clearer, I will ask: In fraction word problems I have a hard time telling the difference between a multiplying problem and a division problem, can someone tell how to tell the difference.{In detail} Thank You Give us an example of both. Then we can show you...
*July 7, 2005*

**Math**

In a mixed number or fraction problem, you have dividing and multiplying. Now if you were given a list of multiplying and dividing mixed number and fraction word problems, how can you tell the difference between multipling and divinding word problems. It would be easier to ...
*July 6, 2005*

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