Thursday
May 5, 2016

# Posts by allison

Total # Posts: 500

Chemistry
If the temperature of a confined gas is doubled at constant pressure, what change is observed? A) The volume of the gas is decreased to 1/4 of its original value. B) The volume of the gas is increased to twice its original value. C) The density of the gas is doubled. D) The ...
March 29, 2010

AP Chemistry
For c it is both the Ka for BH^+ and concentration of BH^+ to determine pH at the equivalence point.
March 8, 2010

Corporate Finance
Depreciation for the first year = 33% of equipments= 21450 Sales 60000 Less Operating costs 25000 Less Depreciation 21450 Profit before taxes 13550 Less taxes 4743 Profit after taxes 8808 Add Depreciation 21450 Cash flow after taxes 30258
March 1, 2010

math
No that is wrong. The probability when rolling a 6 sided cube and landing on one number is what you are trying to figure out. Since you role a cube, you only have the ability to land on one number at a time. The question is what is the probability of landing on a 4...So... try...
January 29, 2010

math
Add all of them together like you were doing... 2+4+4=10 Then make fractions of the amount for each colored sock in relation to the total... Blue Pair Probability: 2/10 --simplified... 1/5 WhitePair: 4/10 Simplified... 2/5 And so on...
January 29, 2010

SS
Will the world truly end in 2012 or is this just an absurd myth? I have heard arguments for both sides...but what is the truth.
January 29, 2010

social studies
I'm about to sign up for classes and am wondering...what are microeconomics and macroeconomics and what are the differences between the two?? THANKS!
January 25, 2010

college
if you take a \$1000.00 and add 6% over 48 years how much would you have
January 24, 2010

Chemistry
im sorry i dont understand could you please go into a little more detail.. i broke it up into NaC7H4ClO2 --> Na+ and C7H4ClO2 then did C7H4ClO2 + H2O --> ?
January 21, 2010

Chemistry
If you have 0.2 M of NaC7H4ClO2 with a pH of 8.65, what is the pH of 0.2 M of HC7H4ClO2?
January 21, 2010

Pre-calc
How do you find the range of a projectile?
January 4, 2010

math
All you have to do is divide by three
December 9, 2009

the volume of a pyramid with a rectangular base is v=1/3LWH. find W if V=500 L=15 and H=4. a) W=25 b) W=20 c) W=18 d) W=15
November 17, 2009

Algebra
Find domain and range of each. {(-1,2) (0,2) (1,3) (2,2)} Domain: {-1,0,1,2} Range: {2,3} {(1,5) (2,9) (3,9)} Domain: {1,2,3} Range: {5,9} {(1,2) (1,5) (3,7)} Domain: {1,3} Range: {2,5,7} Are these all right?
November 13, 2009

Physics
I just did this problem for an assignment and used sin not tan. Otherwise I agree.
November 12, 2009

chemistry
i still dont get my question. I dont understand how to set it up
November 10, 2009

Chemistry
CH4+Cl2->CH2Cl2+HCl. If 6.00 g of CH4 are mixed with 6.00 g of CL2, how much HCl can be made? What is the percent yield if 2.5 g are recovered from the reaction in the lab?
November 10, 2009

Determine the x and y components if a dog walks to the park that is 24m, 30 degrees northwest. Please help i don't know how to go about solving this problem
November 4, 2009

algebra 2
x+y>4 will turn into y>-x+4 you will graph it like it says = instead of > and shade above the line. x-y<7 will turn into y>x-7. Graph like there is an = and shade above the line with a different color. Where the colors overlap will be the answer>
November 4, 2009

maths ( mental ability)
2/3 of 9 is 6
November 2, 2009

Physics
Traveling at a speed of 16.1 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.72. How much time does it take for the car to come to a stop? Ignore air resistance.
October 22, 2009

Physics
An 81 kg baseball player slides into second base. The coefficiant of kintetic friction between the player and the ground is 0.49. a) What is the magnitude of the frictional force? b) If the player comes to rest at 1.6 s, what was his intial velocity?
October 22, 2009

Math
Four girls bought a boat for \$60.00. the first girl paid-one half the sum of the amounts paid by the other 3. The second girl paid one-third the sum of the amounts paid by the other 3. The third girl paid one-fourth the sum of the amounts paid by the other 3. How much did the ...
October 4, 2009

MATH ??
I looked at a 1938, 39 & 40 calender and they are all still on the same day. What am I missing thanks for your help
October 4, 2009

physics
The centers of a 11 kg lead ball and a 70 g lead ball are separated by 8.0 cm. What gravitational force does each exert on the other?
September 29, 2009

calculus
I have a couple of questions that I'm not sure how to do! 1) Given f(x) = (x^2 - 2x + 1) for x does not equal 1 and (k) for x = 1 Determine the value of k for which f is continuous for all real x. a) 0 b) 1 c)2 d)3 e)none of the above i think the anser is a but i'm ...
September 24, 2009

Math
thank you
September 9, 2009

Math
Write 8/25 in Decimal (use the prime factorization of the denominator and explain if it repeats or terminates).
September 9, 2009

math
32/(4+4)* 2 to the third power-7=
September 9, 2009

science
A diesel engine's piston compress 16cm3rd of fuel air mixture into 1cm3 The pressure changes from a atmosphere to 48 atmospheres if the initial temp. of the gas was 305k What was the final temerature
August 4, 2009

What is the impact of computer graphics on the research report writing format?
June 17, 2009

hum 130
Is indigenous religion in australia still practiced today?
June 2, 2009

Science
Is heat transferred from a cool surface to a warm one or is it vice versa? Thanks
May 30, 2009

com/220
how do I quote a source from the library
May 24, 2009

algebra
the length of a rectangle is twice the width. The area is 200yd^2. Find the length and the width.
May 3, 2009

science
Amino acids that you obtain from eating foods are classified as A. essential. C. extracellular. B. facilitated. D. inorganic. A - is this correct
March 25, 2009

math
Im sorry the questino sould actually be deermine it algerbraically. 2^x+1-8=5^(1/3x) Please help me, I have tried so many times to get the rght answer and I can't.
March 15, 2009

math
Determine the value graphically. 2^x+1-8=5^(1/3x)
March 15, 2009

English
For English class, we're doing a vocab. review for seventh graders, as part of our teaching project. Should seventh graders know what inevitable means? What age should people know that word by? Thank you.
March 15, 2009

math
3 2/3*2 7/8
March 2, 2009

precalculus
(cos^4ө- sin^4ө/ cos^2ө)+ tan^2ө = {(cos^2ө-sin^2ө)(cos^2ө+sin^2ө)/cos^2ө}+tan^2ө = 1{(cos^2ө-sin^2ө)/cos^2ө}+tan^2ө =?
February 22, 2009

precalculus
I dont understand this problem: (Tanө + cos ө)/ (sec ө + cot ө) so I start off like this: ={(sinө / cos ө)+cosө}{cos ө + (sinө/cosө)} =[(sin ө +cos^2ө) (cos^2ө +sin ө)]/ cos ө but what ...
February 22, 2009

the language of healthcare
Describe the following approaches used to organize information about the body. Also provide an example for how each approach is used. Body planes and directions Body Cavities Quadrant and regions Anatomy and physiology Microscopic-to-macroscopic Body systems Medical speciality
February 5, 2009

geometry
what does it mean when the scale factor (ratio) of the actual object to its model is less than 1? ; greater than 1?
December 3, 2008

LSU
How many 3 cm cubes will fit into a 1m cube?
December 2, 2008

LSU
How many 2 inch cubes will it take to make a rectangular prism that is 8 inches by 10 inches, by 14 inches?
December 2, 2008

LSU
A can of black olives has a diameter of 8 centimeters and height of 20 cm. If the can contains 15 olives, each approximately 2 cubic cm, then what is the approximate volume of the liquid filling the can?
December 2, 2008

LSU
What happens to the volume of a right circular cylinder if you double its diameter?
December 2, 2008

LSU
Determine the surface area of a cylinder whose height is 2m and whose base has an area of 9 pi m square?
December 2, 2008

spanish need help
the rest are correct but 1 is escribía
November 22, 2008

math
i dont under stand! my teacher made it look easy, but when i went to do my home work, the book said something totaly differrent. it starts of withthe age of some joggers, 10-19 and trhe frequency is 5? please make it easyer! this is not making sense!
November 17, 2008

math
how to show that 7/8 is bigger than 5/6
November 13, 2008

i need to find two articles in anything to do with an ecological concern (ex. pollution as a threat to our ecosystem)... please help me find a site, i can't find any good ones!!
October 27, 2008

math
its the |A+B+C|=4.. because our P.O.I was (2,-2), therefore A=1(2) + B=-1(-2) and C=-4....that makes 2+2-4.. that's 0
October 22, 2008

math
ok, but if i were dealing with the formula ... *absolute value*Ax+By+C/over -> *square root* A^2 +B^2
October 22, 2008

math
Find the exact value of the shortest distance from the origin to each line. y=x-4 is the equation of the line. When i do the problem I keep on getting 0 but that's not the answer!!! please help me.
October 22, 2008

math
indo european number system
October 12, 2008

plz integrate
October 8, 2008

integrate
to be more specific...i know its best for me to attempt the problem so for the first problem i used substitution as v=3u dv=3du du=dv/3 so answer i got was 1/3 ln3u is that correct? and on the second on i tried x*x^-2 as x^-3 dx so ans is -1/2x^-2 is that correct? please let ...
October 8, 2008

integrate
do i use the subsitution rule?
October 8, 2008

integrate
integrate du/3u and integrate x/x^2 dx it might be simple...i just need a head start...tnx
October 8, 2008

integrate
how do i integrate 2u du /u-2+2u^2 so i used subsitution rule? or can i used integration by parts and how? thanks in adnvace
October 8, 2008

antiderivative
i need help with finding anti derivative of -2xe^x +y-6x^2 dx so i use the integration by parts to solve for -2xe^x?
October 8, 2008

differential equations
the directions are to determine whether or not the equation is exact if so then solve it. the question is (x-y^3+ysinx)dx = (3xy^2+2ycosx)dy i solve and i got that it is exact because My is -3y^2+2ysinx and Nx is -3y^2+2ysinx since m and n are equal then they are exact then i ...
October 8, 2008

english
this is making me crazy, please help, rearrange these words to make new ones. mad policy Erin land A stew sir moon starers
October 1, 2008

Global : Columbus
Because he stole crops and other items from Native Americans and took them slaves and brought them to his country many times. Native Americans who either crossed over a bridge in the ice age or canoed on boats.
October 1, 2008

Local Enviornmental Issue Checkpoint
Discuss an environmental problem that you feel is significant in your town or city. What are some causes? Are any of these causes related to human values and environmental ethics? Explain.
September 5, 2008

Driver's ed?
i need help with my homework
August 31, 2008

Language
What do these words have in common; door, fry, horn, pastry, toast, window? Thank you
August 26, 2008

algebra
-2(x-1)+3(x-1)=4(x+5) 1/2x+7=3/4x-4
June 17, 2008

Math
March 19, 2008

science
1.when air is cold, it has less ______. 2.the expansion joints _______ when it is cold outside. 3.the expansion joints ______ when it is hot outside. 4.what might happen to a road without expansion joints? The _____ is a blank need answer please and 4 need it to be short ...
February 28, 2008

science
landslide
February 28, 2008

Math
Describe an application for the use of ratios or proportions
February 28, 2008

Math
Can you show me how you did this problem please.
February 28, 2008

Science
The role of protein in hormone/enzyme functions? How protein assists with immunity? The protein needs of an infant or toddler compared to an adult? The importance of protein in maintaining fluid/electrolyte and pH balance? Amino acids and how they relate to athletics? Any good...
February 21, 2008

Math
Please check double check me please. For the decimal 8.57932 What is the place value of 5? Ten Thousandths What is the place value of 2? Ones Write each of the following as a common fraction or mixed number 4.0171 Answer: 4 171/10,000 Arrange in order from smallest to largest ...
February 19, 2008

algebra 1
simplifying radical expressions the square root of sixty
February 19, 2008

stupid test online
HAY YOU GUYS ARE LIKE SO STOOPID GET A LIFE!!!!!
February 6, 2008

science
why are electromagnetic waves called perpetuating waves?
December 1, 2007

Science
why are electromagnetic waves called perpetuating waves?
December 1, 2007

English
hiiiiiiiiiiiiii r u indian??????????????
December 1, 2007

Social Studies
Is nortordomes predictings true will the world end in four years?
October 30, 2007

Algebra 1
8y-2y How do you do it?
September 24, 2007

Math
Hey I forgot how to do this certain question: 2(3x-8)+7=x+3-4x
September 6, 2007

Biology
How can you tell when to use a field study instead of a controlled expirement?
August 30, 2007

When is the book, "Maniac Magee", taking place? http://en.wikipedia.org/wiki/Maniac_Magee If the author doesn't give a specific time setting (year or decade or whatever), then he probably means for it to be a "timeless" story, one that could happen ...
July 19, 2007

chemistry
1. decrease absorbance and decrease % transmittance 2. decrease absorbance and increase % transmittance 3. increase absorbance and decrease % transmittance 4. decrease absorbance and increase % transmittance
May 10, 2007

Math
Keiko has 7 colors of lanyard. She uses 3 different colors to make a keychain. How many different combinations can she choose? 7 for the first, 6 for the second and 5 for the third. The answer is the product of those numbers, no matter what order the three colors are picked. ...
May 6, 2007

Microbiology
How would someone identify an unknown bacteria? "Due to the prospect of interplanetary travel, how would you attempt to isolate and identify a bacterial infection acquired on another planet. This bacteria is unknown to use and does not appear in Bergey's or the manual...
May 5, 2007

Microbiology
Due to the prospect of interplanetary travel, how would you attempt to isolate and identify a bacterial infection acquired on another planet. This bacteria is unknown to use and does not appear in Bergey's or the manual of clinical microbiology. Look for the properties of ...
May 4, 2007

Spanish
I am from florida lakeland
December 13, 2006

mangerial eco
you are the manager at the cadillac division of GM. If the marketing department has estimated that the annual demand for the escalde is Q=100,000-1.25P what price should you charge in order to maximize revenues from sales? Total revenue is P*Q. So, TR = 100,000P - 1.25P^2. ...
November 30, 2006

Heroines are not always victims of unfriendly forces beyond their control. but are the instead, challengers who confront the world rather than waiting for success to fall at their pretty feet. Heroines of this sort are not numerous in oral tales and do not exist at all in any ...
October 25, 2006

AMERICAN GOVERNMENT
Why does the Constitution and the Declaration of Independence are called Living documents? I need an answer why to write my government report. The Constitution is a living document because we can amend and change it. Also, the Supreme Court continuously interprets the ...
October 19, 2006

math
what do we call the numbers that cannot be arranged into 2-row arrays?
August 31, 2006

math
um take home test...i have no idea what im doing always sometimes never 1. sin2x=2sinx 2. cos (pie/3+x)=-sinx 3. if tan x=3 and tan y=2 then tan (x+y)=5 4. when you use the half angle formulas you choose whether to use a + or - by noting in which quadrant the angle lies 5. ...
June 11, 2006

Dr.Bob (thx) Check my work for this one pls
Oh my god i am not in 8th grade
June 11, 2006

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