Nadine
Most popular questions and responses by Nadine
Chemistry
Given that the Ka of benzoic acid is 6.50 x 105, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00? The starting concentration of the benzoic acid is 3.00 M and the molecular weight of sodium benzoate is 144.10
asked on April 10, 2011 
Math
Players on Team; Tennis 2, Basketball 5 A community center has 3 tennis teams and 5 basketball teams. No one is on both teams. How many athletes are there? My answer is 31 athletes. Is this right?
asked on February 15, 2012 
Physics help?
A circular loop in the plane of the paper lies in a 0.78 T magnetic field pointing into the paper. If the loop's diameter changes from 17.8 cm to 6.4 cm in 0.22 s, what is the direction of the induced current? What is the magnitude of the average induced
asked on March 30, 2012 
math
What number is 73% of 215? (1 point) 215 = 0.73n n = 0.73 × 215 *** 0.73 = n × 215 215 = 73n
asked on February 1, 2016 
physics
A crate of potatoes of mass 12.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.69 and μk = 0.43. Find the frictional force (magnitude and direction) on the crate if the crate is sliding down the
asked on September 19, 2013 
General chemistry
What mass of electrons would be required to just neutralize the charge of 2.7 of protons?
asked on October 14, 2010 
French PenPal
My French teacher is having us write to our fifth grade pen pals, and I sent my first letter a while ago with everyone else in the class. Well, my teacher waited for a while so all of the students would have a chance to respond in a letter of their own and
asked on April 20, 2008 
Physics
A circular loop in the plane of the paper lies in a 0.78 T magnetic field pointing into the paper. If the loop's diameter changes from 17.8 cm to 6.4 cm in 0.22 s, what is the direction of the induced current? What is the magnitude of the average induced
asked on March 30, 2012 
Math
How do I break this down to factor it? 2x^2+13xy+15y^2
asked on October 7, 2008 
earth science
Describe the change in duration of insolation from the Equator to the North Pole A) In the winter b) In the summer c) on the Equinox
asked on November 8, 2009 
Chemistry
can anyone help me with this question A solution is made by dissolving 0.078g of Ca(OH)2 in water to make 100ml of final solution. Calculate the pH of the solution im not sure about how to use the 100ml. thanks nad You need the 100 ml to determine
asked on June 11, 2007 
Statistics
"Working Mom’s Journal" reported that the mean time a mother, with her small children, spends in at the convenience store is 7.3 minutes. A sample of 20 moms is chosen from your neighborhood, and it is found that the mean time they spend in a convenience
asked on March 10, 2013 
Physics
Part of a single rectangular loop of wire with dimensions .35 m by .75 m (.35 is the height and .75 is the length) is situated inside a region of uniform magnetic field of 0.395 T. The total resistance of the loop is 0.690 Ω. Calculate the force required
asked on March 31, 2012 
word problem
If 258 hamburgers and cheeseburgers were sold and the number of cheeseburgers sold was two times the amount of hambugerssold how many hamburgers were sold? Is this right? 258 divided by 2 =129
asked on October 15, 2008 
Math
Evan found a way to find the product of 36 x 15. 36 x 15 = ( 30 + 6 ) = ( 10 + 5 ) = 300 + 150 + 60 + 30 = 540 a. Does Evan's method work for finding 35 x 15? Explain. b. Use Evan's method to find ( 2 + n )(3 + 5). c. Use Evan's method to find ( n + 2)(a +
asked on October 17, 2017 
science/math
A juice processing operation uses steam to heat the fruit juice up to a temperature of 96̊C prior to packaging it in drink boxes. They need to heat 3,250 kg of apple juice (10.5% solids) from an initial storage temperature of 39̊F to its heat treatment
asked on February 6, 2012 
MathAlgebra
Can someone please elucidate to me, how to do this enquiry. 2y=6/5
asked on June 3, 2010 
algebra
The length of a rectangle is 1 inch greater than its width. If the dimensions are doubled, its area increases by 36 square inched. Which equation could be used to find its dimensions?
asked on April 23, 2010 
Math
In a survey of a TriDelta chapte with 54 member, 20 were taking mathematics, 35 were taking English, and 6 were taking both. How many were not taking either subject?
asked on December 12, 2008 
Math
Solve the following 2w^3 4c^3t^2 _____  ________ 9c^3d^3 3b^2d^2
asked on November 6, 2008 
Math
m=y^2y^1/x^2x^1 solve for i1
asked on October 12, 2008 
help
could someone show me the steps for solving this: 3x+24=9(x+4)
asked on October 8, 2008 
French
I wrote this short pen pal letter, and I need someone to check it. It would really help me! Thanks Chère Megan, Je m'appelle Nadine at j'ai treize ans. Je suis ton correspondant! J'apprends le français depuis deux ans et je pense que c'est une langue
asked on April 21, 2008 
PHYSICS QUESTION!!!!
how do you find the height or time? is it h=squreroot4.9/t or h=squareroott/4.9 or is it something else complettly???
asked on December 9, 2007 
algebra
If the cost of a cell phone has decreased 400% during the last 10 years, does that correspond to a cost decrease of four times? Explain your answer.
asked on September 11, 2012 
grammar
Is it correct to say "I had a chat to my brother"? I normally use the word 'with' my brother.
asked on April 3, 2012 
Math
A box holds one layer of 45 baseballs. How can the baseballs be arranged?
asked on February 27, 2012 
Math
What is the difference between a likely event and an unlikely event?
asked on November 29, 2011 
algebra
what do you mean by (2x) in absolute value? I can't figure out what the x is all about...
asked on January 21, 2010 
precalc
how do u do evaluateL cos135
asked on December 7, 2008 
Math
Is this equation right is it worked correctly x 1    x24 x2+4x+4 This is how she simplified it: x(x2+4x+4)  1(x24)  (x24)(x2+4x+4) x3+4x2+4xx2+4  x4+4x316x16 x3+3x2+4x+4  x4+4x316x16
asked on October 24, 2008 
math help please!
yx3 _____ How do I slimplfy y6x4
asked on October 10, 2008 
Math
solve for x 5x3/4=2/37/2
asked on October 10, 2008 
math
How can a rectangle with be used to illustrate the multiplication of polynormals
asked on October 8, 2008 
Math
can you please help me solve this quadadratic equasionby factoring : x^28x+16 would this be the right way 8x^3+16 to start
asked on October 8, 2008 
math
how would I write 9557 in scienctific notation would it be like this: 9.557
asked on October 8, 2008 
Math
Base fee is 16.99 and a additionalcharge of .77each mile and he had to pay 133.26 how many miles did he drive the truck? Do I take the 16.99 from the 133.26 which is 116.27 then divide that by .77 which would be 15.1
asked on October 7, 2008 
Science
Why do the coolant in a car's radiator protects the engine from damage?
asked on January 29, 2008 
science
when current flows through a wrapped in coils around a bar magnet, a temporary magnet known as a _________________ is created. Did you omit a word? perpahs metal. For the blank, are you thinking of electromagnet?
asked on January 17, 2007 
social studies
what did they call the mummy shaped figure that worked in the afterlife's fields for the mummy? http://www.carlos.emory.edu/ODYSSEY/EGYPT/shabtis.html
asked on November 29, 2006 
algebra
Xpower2 15+50=0
asked on January 2, 2013 
math
What terms is missing from this set of ordered pairs? (0, 2)(?, 0)(5,8)
asked on January 1, 2011 
english
need a thesis for the play trifles my title is We Got Your Back
asked on December 1, 2010 
Calculus
What is the orthogonal trajectory of y^2  x^2 = C ??
asked on December 14, 2009 
earth science
Describe the change in duration of insolation from the Equator to the North Pole A) In the winter b) In the summer c) on the Equinox
asked on November 8, 2009 
Math
5k^2u^2 3z^2 ________ + ____ 12b^2d^2 4bk^3 How would I solve this?
asked on October 27, 2008 
help
7w/15x times 6wx/w How do I work this one
asked on October 7, 2008 
Math
write in scienctific notation: 0.003191
asked on October 7, 2008 
Math
Simplfy the following (x^29x+9)(2x+4)+(6x^27x5) solution: x^20 x+2+ thats as far as I got
asked on October 7, 2008 
Math
Put in simplest form withoiut parenthesis: (w2)(w+1) Is this right w^22+1
asked on October 7, 2008 
accounting
Please computate retained earnings During 2009, Edgemont Corporation had revenues of $230,000 and expenses, including income taxes, of $190,000. On December 31, 2008, Edgemont had assets of $350,000,liabilities of $80,000, and capital stock of 210,000.
asked on August 25, 2008 
English
Could someone check my answers for this exercise. Dangling Modifiers
asked on June 25, 2007 
microeconomics
what is ment by allocative and productive efficency stuff
asked on November 29, 2006

College Chemistry
you add the total grams of Fe+C+Cr which is Fe = 92.1 + C = 2.59 + Cr = 1.59 = 96.28 The question is asking for the % by mass of each component. you calculate each individual element . Fe gm of 92.1/96.28 (total gms) x100% = 95.7% You do the same for C and
posted on May 24, 2019 
Math
For A i think it works but i do not understand b,c, and d.
posted on October 17, 2017 
Language Arts
His opinion, is he feels like television is a waste of time. He feels like there are many things people can do besides laying around watching tv all the time.
posted on November 9, 2016 
Physics
1. 64.195
posted on October 20, 2016 
6th Grade Math
The answer is 5. (5/8)*5=25/8=3.125 lbs More than enough to cover the additional 3 pounds her father needs.
posted on October 11, 2016 
Statistics
1. Find the area associated with this section of the curve: between z = 1.15 and z = 1.35.
posted on October 21, 2013 
Information Systems in Organizations
1 b 2 c 3 d 4 c 5 no
posted on March 18, 2013 
Information Systems in Organizations
1 b 2 c 3 d 4 c 5 yes
posted on March 18, 2013 
Physics help?
Thank you!
posted on March 31, 2012 
Math
9 x 5 5 x 9
posted on February 27, 2012 
calculus
If 7 and 4 are exponents, take the derivative. You should get x^6(x+1)^3(11x+7), setting the derivative equal to zero gives you 0, 1, and 7/11 as critical numbers. Test numbers in the intervals [12,1], [1, 7/11], [7/11,0] and [0,10]. If the first
posted on April 10, 2011 
Corporate Finance
I have the answer. contact me at candy2108atgmaildotcom
posted on February 13, 2011 
Chemistry
Convert 63.7 kg of oxygen to grams. Then use stoichiometry and convert the grams of Oxygen to moles of Oxygen, then moles of KNO3 using the equation. Calculations: 63.7 kg > 63,700 g. Divide by 32 grams of O2, then multiply by (4 moles KNO3/5 moles O2).
posted on January 30, 2011 
college math 209
25²+20x+4=0
posted on January 25, 2011 
BusinessOperations Management
With effective resource planning organizations can reduce inventory and service costs, improve efficiencies, and establish methods for continuous improvement. Depending upon the type of resource there is a different type of planning that must take place.
posted on November 8, 2010 
chemistry
The evaporation procedure must be completed in 1015 minutes right after isolating aspirin in the filtration step with alumina or the aspirin decomposes which will create more surface area on the molecule resulting a lower melting point and wider
posted on September 26, 2010 
MathAlgebra
Gracias!
posted on June 3, 2010 
Finance
If D0 = $2.00, g (which is constant) = 6%, and P0 = $40, what is the stock’s expected dividend yield for the coming year? a. 5.0% b. 5.1% c. 5.3% d. 5.6% e. 5.8%
posted on January 16, 2010 
elementary
the rule is to use numbers and you always have to read the question to do it.
posted on September 10, 2009 
word problem
so it would be193 cheeseburgers right
posted on October 15, 2008 
math
Thank you
posted on October 8, 2008 
help
Thank you very much I hope I can remember the foil method
posted on October 8, 2008 
Math
write 0.003191 in scientific notation
posted on October 7, 2008 
Math
Thank you
posted on October 7, 2008 
French
oops, I see a typo that I didn't notice. It should say et instead of at before mes frères.
posted on April 21, 2008 
French PenPal
Wow, Thanks! Those are really good ideas!
posted on April 20, 2008 
science
Friction easy But then again the engine but that isnt a force
posted on April 9, 2008 
math
2(4x4)+2(8x+10)=8x8+16x+20 perimeter=24x+12
posted on January 30, 2008 
math
2^3 is 8 8*2 is 16
posted on January 29, 2008