Sunday
September 21, 2014

Posts by n/a


Total # Posts: 59

math
he number of block has 9 in the ones place. the number in the hundreds place is one more than the number in the tens place, those two numbers equal 11. how many blocks are there?
September 11, 2014

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
63
June 17, 2013

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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