Krissy
Most popular questions and responses by Krissy
physics
A commonly used method of fastening one part to another part is called "shrink fitting." A steel rod has a diameter of 2.0046 cm, and a flat plate contains a hole whose diameter is 2.0000 cm. The rod is cooled so that it just fits into the hole. When the
asked on November 17, 2015 
maths
john,peter and mary shared a sum of money in ratio 2:4:9.john and peter together received $360.how much money was shared?plz to show working
asked on January 23, 2014 
maths
i spend $4.80 on groceries and $1.20 on vegetables.what is the ratio of cost of (A)groceries to veg (B)veg to groceries
asked on January 20, 2014 
economics
Each week, Bill, Mary and Jane select the quantity of two goods, x1 and x2, that they will consume in order to maximize their respective utilities. They each spent their entire weekly income on these two goods. Suppose you are given the following
asked on February 24, 2008 
maths
WHAT IS THE VALUE OF THE 2 IN THE NUMBER 48.621? I SAY 2/10 IS THAT CORRECT
asked on January 23, 2014 
physics
The heating element of a water heater in an apartment building has a maximum power output of 29 kW. Four residents of the building take showers at the same time, and each receives heated water at a volume flow rate of 12x105 m3/s. If the water going into
asked on November 17, 2015 
College Algebra
I need some help with a handful of questions. I need to see the steps on how to get to the final answers. I would also appreciate if you can explain how you got to those steps. Rationalize each expression by building perfect nth root factors for each
asked on January 19, 2013 
maths
plz can someone show me how to work out this #exact value of 6/(0.0003)is
asked on January 23, 2014 
College Algebra
I need some help with a handful of questions. I need to see the steps on how to get to the final answers. I would also appreciate if you can explain how you got to those steps. Rationalize each expression by building perfect nth root factors for each
asked on January 21, 2013 
spanish
hey i'm having a bit of trouble with spanish. Any help with differentiation the two would be great. hace + period of time + que + present tense AND hacía + period of time + que + imperfect tense. I have my spanish book with me, and it tells me the
asked on December 15, 2007 
Earth Science
On the surface of the earth, it is approximately 6,200 miles from the equator to the north or south pole. How many miles is it between 2 parallels 1 degree apart?
asked on October 18, 2009 
chemistry
mix 120ml of 0.320M silver nitrate with 40ml of 0.320M potasium chromate. What mass of silver chromate is produced? this is what i have so far 2AgNO3 + K2CrO4 > Ag2CrO4 + 2KNO3 molar mass of 2agno3 = 277.81 molar mass of k2cro4 = 194.2 molar mass of
asked on January 29, 2010 
College Algebra help please
I need some help with a handful of questions. I need to see the steps on how to get to the final answers. I would also appreciate if you can explain how you got to those steps. Rationalize each expression by building perfect nth root factors for each
asked on January 20, 2013 
Chemistry
The following three step mechanism has been proposed for the oxidation of iodide ion by peroxide: H2o2 + I^ > HOI + OH^ Slow OH^ + H^+ > H2O Fast HOI + H^+ + I^+ > I2 + H2O Fast A. What is the overall reaction described by this mechanism? B.
asked on November 20, 2012 
chem
quantitative determination of acetylsalicylic acid in aspirin tablets by back titration 1)why do we use a more dilute NaOH solution for the standardization of NaOH? 2)what is the rationale behind the dilution and aliquoting of the aspirin sample? 3)what
asked on January 20, 2009 
chemistry
please check if I did this right ... calculate the mass of white solid CaCO3 that forms when 98ml of a 0.1M Ca(NO3)2 solution is mixed with 54 ml of a 2.5M Na2CO3 solution. Ca(NO3)2 + 2NaCO3 > Ca(CO3)2 + 2NaNO3 .098*0.1 =.0090 .054*2.5 =.135 limiting
asked on January 29, 2010 
Art Ideas?
I am suppose to do a carboardcut out sculpture, as a piece to decide whether I go on a art conference or not. The theme is "reaching higher" I have thought of start hanging down...and a large filstrip with hand reaching higher and higher...eventually one
asked on December 11, 2006 
SCIENCE
What is the difference between (aq) and (l) ...what do they mean. I know Aq is a aueous solution while (l) is a liguid with only one element...but what is the difference between them? thanks duplicate post.
asked on December 11, 2006 
physics
A bicyclist accelerates –0.87 m/s2 during a 3.8 s interval. What is the change in the velocity of the bicyclist and bicycle?
asked on October 1, 2014 
general physics
what are the differences between polygon and parallelogram method?
asked on June 20, 2014 
maths
Small pizza Diameter = 15 cm Medium pizza Diameter = 30 cm I$ a medium pizza twice as large as a small pizza? Use calculations to support your answer. A medium plz can someone help me
asked on February 25, 2014 
College Algebra
Last one for today! Again would appreciate a breakdown on how to get to a resolution. It is multiple choice. 1. Simplify the expression using the quotient to a power property. (3y^6/z^7)^3 a. 27y^9/z^7 b. 3y^9/z^10 c. 27y^18/z^7 d. 27y^18/z^21 2. Use a
asked on January 15, 2013 
College Algebra
I have a few more questions that I'm not understanding. Its multiple choice however I would appreciate a breakdown on how to solve. 4.Simplify the compound rational expression. Use either method. 1+(5/y10)/y+(25/y10) a. 1/y5 b. 1/y+5 c. 6/y+25 d.
asked on January 15, 2013 
College Algebra
I have a few more questions that I'm not understanding. Its multiple choice however I would appreciate a breakdown on how to solve. 1.Evaluate without a calculator, using the order of operations. 2^2+20820squareroot of 64 a. 36 b. 4 c. 28 d. 4
asked on January 15, 2013 
Chemistry
Your Open Question Show me another » Chemistry help needed... Confused? The following reaction is first order and the rate constant is 2.35 x 10^4 s^1 at 20 degress C. 2 N2O5 > 2 N2O4 + O2 A.) What is the rate of reaction if the [N2O5]=.25 M? B.
asked on November 20, 2012 
economics
I need to review a n example of an essay on a 7001,050 word essay on one good that you have had experience purchasing and the good I chose is online college explaining factors that could cause possible chandes in supply and demand. Determine at least 2
asked on August 14, 2010 
Geometry
1) Draw a valid conclusion if possible: Parallel lines do not intersect If lines do not intersect, then they have no points in common. **can this logical argument be identified by name? If yes, name it. 2)Draw a conclusion given AB bisects segment XT at
asked on October 7, 2007 
College Algebra
I posed these one's before but added parenthesis which I think made it confusing as the actually questions do not have them. So, I'm reposting them without to see if it makes sense. If not I understand. 1. Compute as indicated. Write your answer in lowest
asked on January 16, 2013 
math
WRITE THE NUMBER 99 AS A PRODUCT OF PRIME FACTORS
asked on February 4, 2012 
science
Which pairs of substances will form a buffer when mixed in equal concentrations?
asked on March 28, 2010 
Chemistry
I was given a question on an assignment and I can't figure it out. The question is A student collects 90ml of oxygen gas over water at 25c and a total pressure of 99.3kPa from the decomposition of KClO3. 2KClO3(s)> 2KCl(s)+ 3O2 a) How many mols of O2 were
asked on March 6, 2010 
Physics
Find the net force on a,b and c. Given ma=363kg mb=517kg and mc=154kg. abc This was a question given to our class by our physics teacher ... he did not show us how to do it. So any help/steps involved to solve this problem would be much appreciated.
asked on February 21, 2010 
chemistry
I have 3 questions I need help with 1. mix 120ml of 0.320M silver nitrate with 40ml of 0.320M potasium chromate. What mass of silver chromate is produced? 2. Calculate the mass of white solid CaCO3 that forms when 98ml of a 0.1M Ca(NO3)2 solution is mixed
asked on January 27, 2010 
math
log x (x+2)=2
asked on December 7, 2008 
Algebra
Name the line which have the following characteristics: 1) Passes through (2,3) & (0,9) 2) Perpendiculat to the line 4x2x=7 and through (1,3) 3) Perpendicular to the segments with endpoints (2,1) & (4,1) and through the midpoint of the segment. If
asked on December 2, 2007 
Chemistry, PPPLLEASE Help!
Hello, I'm confused on what these problems are telling me. Is questions a) and b) the same? I don't know, please help me I don't know what to do... The inteconversion of DHAP and G3P is a part of both the glycotic pathway and the Calvin cycle for
asked on September 25, 2006 
maths
express 4_3_ as a decimal to 3 sig fig plz 4
asked on January 23, 2014 
College AlgebraStill Confused
I have a few problems I need help with and also do have multiple choice. If I can have an explanation of how to get the answer that would be great. 1. Use the discriminant to determine whether the given equation has two irrational roots, two rational
asked on February 5, 2013 
Physics (Science)
Hi, For my physics class, we have to design our own experiments to calculate the amount of power exerted for each situation. However, I'm really unsure of how to go about finding the power for the situations. The first situation is doing a pushup, and the
asked on October 25, 2012 
Algebra
Z12 / 3=4
asked on July 31, 2012 
physics
if four of length on a real home is represented by one inch on a scale model of the home, what legth on the scale model would represent one foot on the real home?
asked on September 26, 2010 
algerbra
my mom and I can not figure this one out please help!!!! (a3b+27) I need to simplify.. Mom states it will be a+3b27 I don't think you can do this Why would you just change the signs...
asked on September 7, 2010 
math
given tat F(x)=x^3+ax^2+bx has critical points at x=1 and x=5 find a and b and classify the critical points as max, min, or neither.
asked on December 15, 2016 
Calculus
Given that f(x)=x^3+ax^2+bx has critical points at x=1 and x=5, find a and b and classify the critical points as maxima, minima, or neither.
asked on December 15, 2016 
maths
2x+y=7 x(2)xy=6 pl plz help me someone
asked on April 12, 2014 
maths
sketch the graph of each line y= 7x+3 and there is a graph drawn with y axis range from 6:6 x axis range frm 6:6
asked on February 11, 2014 
maths
help plz solve for x ;2x+9/5
asked on January 26, 2014 
maths
given that g(x)=2x+1/5 and f(x)=x+4 write an expression for gf(x) write an expression for me plz
asked on January 26, 2014 
College Algebra
The expression x^27 is not factorable using integer values. But the expression can be written in the form X^2(Square root7)^2 enabling us to factor it as a “binomial” and its conjugate: (x+square root 7)(xsquare root 7) Use this idea to factor the
asked on January 21, 2013 
College Algebra
I'm wondering how to answer this. The conjugate of 2Square root 3 is?
asked on January 21, 2013 
Algebra
1. Create the indicated algebraic expression. Use descriptive variables. The length of a rectangular lawn is 6 ft more than three times the width of the lawn. Express the length of the lawn in terms of the width. A. 3+w+6 B. 3(w+6) C. 6w+3 D. 3w+6 For 1 I
asked on January 16, 2013 
Chemistry
Why is the DNA information coded in "threes"?
asked on December 19, 2012 
Chemistry
What are chiral carbons and why do they lead to isomers?
asked on December 19, 2012 
Chemistry
I need help naming these compounds. I CL H H     CH3CHCHC=CCH3 F CH3 O    CH3CHCHCH2CHCOH  CH2CH3 CH3CH2CH2  CH3CH2CCCHCH3    Br O CH3
asked on December 18, 2012 
statistics
sample size needed with a mean of 100,standard deviation of 20 for the the population of normal adults an iq range to fall between 2 iq points with 95% confidence interval
asked on December 1, 2012 
Chemistry
mix 120ml of 0.320M silver nitrate with 40ml of 0.320M potasium chromate. What mass of silver chromate is produced? I am stuck please help
asked on January 29, 2010 
microbiology
disadvantages of using a levyhausser chamber.
asked on February 24, 2009 
poems
Can you name any poets?
asked on April 6, 2008 
Hey guys i just need your opinion
What is your favorite poem? Name the poet and title of poem... thank you =oD
asked on April 6, 2008 
math
how many square inches are in a square foot A square foot has 12 inches on each side. To find the number of square inches, multiply 12 x 12. You can also go to www.google.com and type in 1 square foot to square inches and press enter.
asked on September 26, 2006

Language Arts
i need hep with the essays :(
posted on January 25, 2019 
History
its where they traded furs. They traded fur for a living so therefor they needed to trade to make money.
posted on January 17, 2019 
Social studies
i have no idea
posted on April 23, 2018 
math
$7.20
posted on March 21, 2018 
math
$280
posted on March 21, 2018 
math
I don't understand PLZZ explain more!!!!! Here is my solution: MAKE IT EASIER PLZZZ. MAKE IT EASIER TO UNDERSTAND!!!!!
posted on October 31, 2017 
Chemistry
.5672g/mL
posted on September 17, 2017 
nutrition
The correct answer is (a)The total grams of fat in the American diet has stayed relatively constant over the past 40 years.
posted on January 23, 2016 
maths
help plz dnt understand this
posted on February 11, 2014 
math
for the #1 how do u got 3 4/5 if u check good u got 3/5
posted on January 26, 2014 
maths
WHAT IS THE VALUE OF THE 2 IN THE NUMBER 48.621? I SAY 2/10 IS THAT CORRECT
posted on January 23, 2014 
maths
its 4 AND 3/8 IT A WHOLE AND FRACTION 4 IS THE WHOLE#
posted on January 23, 2014 
maths
thnks this was what i did put was sure if i was corect
posted on January 23, 2014 
maths
oohh ok thnk u i got it now thnks much
posted on January 23, 2014 
maths
why multiply by 10000
posted on January 23, 2014 
maths
ok thnk u
posted on January 20, 2014 
maths
the book i have give the answer as (a)4:1 (b)1:4
posted on January 20, 2014 
maths
100 cents = $1 6*100 that how u get it jus want to understand clearly thnk u again
posted on January 17, 2014 
maths
thank u how do u get the 600
posted on January 17, 2014 
College Algebra
Thank you so much that does make scense. I just posted one more kinda like it if you don't mind explaining?
posted on January 21, 2013 
Algebra
Thanks Steve! You've been a great help through this
posted on January 16, 2013 
calculus
3 ft/sec
posted on June 14, 2012 
10th grade chemistry
in terms of chemical bonding why ammonia has a much lower melting point than water
posted on May 6, 2010 
chemistry
Thank you so with those corrections my new calculations would be .0090*100.05 = .90045g Hopefully this time it is right. Obviously I am not chemisrty gifted.
posted on January 29, 2010 
chemistry
lol to be honest I have no idea why it is the limiting reactant. Thank you so much for posting it helped a great deal when compared to the previous one.
posted on January 29, 2010 
Chemistry
Thank you so much, now I understand ... I think :)
posted on January 29, 2010 
Chemistry
this is what I came up with 2AgNO3+k2CrO4>Ag2CrO4+2KNO3 molar mass of 2agno3 = 277.18 molar mass of k2cro4 = 194.2 molar mass of ag2cro4 = 331.08 194.2*277.18/120ml=500ml limiting reactant k2cro4 194.2g*331.08g/500=128.60 128.60*331.08/1000=42.6 is this
posted on January 29, 2010 
math
(logx)(x+2)=2
posted on December 7, 2008 
Hey guys i just need your opinion
someone answer this question.. please... because I don't know any poems well any good ones anyways
posted on April 6, 2008 
English
wow! when i read the first few sentences i was amazed!
posted on April 6, 2008 
algebra
woops looks like my math was wrong mm you're answer is correct. Nice job at showing you're work!
posted on October 7, 2007 
algebra
3x5(3x7)=2(x+9)+45 3x15x+30 = 2x + 18 + 45 (distribute) 12x + 30 = 2x + 63 (combine like terms)  30 = 14x + 63 (further combine like termsadditive property) 33=14x (move 63 to other side [giving you 33] *simplify* x= 2.35
posted on October 7, 2007