Sunday

April 26, 2015

April 26, 2015

Number of results: 62,760

**chem. check!**

Can u please check this and help me on 4 questions I did not do. Thanks 1.
*June 19, 2006 by hey.*

**Chem Check Please!!!**

Using standard thermodynamic data from Appendix L of your text, calculate the equilibrium constant at 298 K for the following chemical reaction: CO(g) + H2O(l) CO2(g) + H2(g). Show work please! Thank you!!!
*March 16, 2014 by Layla*

**chem can u check answer please**

the solubility of silver sulfate in water is 0.223%(w/v) at 35 degrees celsius.calculate the solubility product of this salt at this temp. I got 1.46 X 10^-6 M is this right please thanks Andy
*May 23, 2010 by Andy*

**chem/some1 check my work plz.**

2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the % yield of nitrogn gas?? please check if is ...
*November 16, 2010 by julia*

**To DrBob222(Please check Chem) **

(This homework question has been removed due to a copyright claim submitted by K12 Inc.)
*June 21, 2012 by Liz*

**language art CHECK**

Will somebody please check this for me and see if i used the words correctly please? Having spent many years as political opponents, the two senators have developed a(n)MUTUAL respect for each other. Please check if it is correct. thank you
*January 17, 2012 by saranghae12*

**Chem**

Can someone please check this for me? It's ranking the following bonds in order of increasing ionic bond character. Cl-Cl C-H H-Cl Mg-C H-O Na-Cl Ca-O Cs-F I'm not sure where Fe-O, and Fe-C fall. Thanks -MC
*February 19, 2014 by mysterychicken*

**chem can u check answer please**

what is the hydrogen ion concentration of an aqueous solution with a pOH of 9.262? I got 5.47X 10 ^-10 is this correct? Thanks Andy
*May 23, 2010 by Andy*

**Dr. Bob**

Dr. Bob, can you please tell me if I did my chem questions right... they have been sitting down there all day and all i need is someone to check if they are right please and thank you
*February 19, 2008 by Lauren*

**chem--please help me check my answer!!**

write an ionic and net ionic equation for the following reaction between Fe3+ and NH4OH. Please check my answer!! Thank you. My answer is: ionic: Fe3+(aq) + NH4OH--> Fe(OH)3 + NH4+ net ionic: Fe3+ +OH- -->Fe(OH)3
*October 25, 2010 by Christine*

**chem -repost for bobpursley**

i don't know how to solve this. looked through all my notes but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand the theory behind this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g...
*April 17, 2011 by please, help me *

**Math 157**

Can someone please help me. At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a ...
*December 8, 2010 by Rena *

**Math**

Can someone please help me. At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a ...
*December 8, 2010 by Rena *

**7th grade math check**

Ok I was wondering if you could check these 3 problems please. I am suppose to set these equations equal but I am not sure if did them right. I think I accidently solved these systems as substitutions. The answers are suppose to be in coordinate pairs. 1) x - y = 11 -3x + y...
*April 12, 2012 by saranghae12*

**chemistry**

can you please give me some practical applications of qualitative chem and quantitative chem...
*November 26, 2014 by Kara*

**Chemistry**

Can someone please check to see if I balanced this chem. equation which is an incomplete combustion reaction: 2C3H8 + 11O2 ->> 3CO2 + 4H2O +2CO +C(s) My answer: 7C3H8 +22O2 -->> 6CO2 + 28H2O +4CO +11C Thanks!
*October 13, 2009 by Anna*

**grade 12 chem - check my answer again please**

Hi, please check my work: In an experiment, 23.4 g of FES are added to excess oxygen and 16.5 g of FE2O3 are produced. The balanced equation is: 4FeS + 7O2 --> 2Fe2O3 + 4SO2 Calculate the % yield. My Answer: nFeS=23.4g/87.92 g/mol =0.266 mol 4mol FeS / 0.266 mol = 7mol O2/ ...
*May 24, 2008 by Sarah H*

**English-CHECK PLEASE**

Ok, I figured this out (I think) but can you please check? Don't worry. I can carry the tent all by myself because it is so light. I do not even need a lantern it is so light outside. In these sentences, the word "light" is used as a: A:homophone B:homonyme C:synonym D:simile ...
*April 15, 2011 by Catherine*

**Physics check**

I just want somebody to check my answer on this problem please :-) There is a box which weighs 1000 kg. There is an applied force acting upon it with a force of 20000 N (horizontally). The mu is 1.2. What is the acceleration (again, horizontally) of the object? I got 8.24 m/s^...
*November 5, 2007 by Emily*

**Math 116 algebra please check**

Solve using the multiplication principle. 10x= -90 The solution is x = -9 please check
*July 16, 2008 by jay jay*

**Math (Check)**

The equation y = a^x is a decreasing function a = 1) 1 2) 2 3) -3 4) .25 I think that the correct answer is 3) -3...but I am not sure why? Can anyone please check if I am right and explain why? Please....Thank you for your help!!!
*March 9, 2009 by jess*

**Calculus - please check my work**

Differentiate each function a) y = -3x^2 + 5x - 4 b) f(x) = 6/x - 3/(x^2) c) f(x) = (3x^2 - 4x)(x^3 + 1) the answers i got for each was: a) y'= -6x + 5 b) f'(x)= -6/x^2 + 6/x^3 c) f'(x)= 15x^4 + 6x - 16x^3 - 4 please double check and let me know if these are correct, thank you.
*June 18, 2012 by Henry*

**PLease Check My Work**

3. T^2-25/t^2+t-20= (t-5) (t+5)/ (t-10) (t+2) 4. 2x^2+6x+4/4x^2-12x-16= 2(x+2) (x+1)/4 (x-4) (x+1) 5. 6-y/y^2-2y-24= 1/(y+4) *Please check them.- 3. (t-5)(t+5) / (t+4)(t-5) 4. 2((x-1)(x+2)) / 4((x+4)(x-1)) 5. (6-y) / (y+6)(y-4) i dont really understand what this is... but lol ...
*February 22, 2007 by Margie*

**Pre-Algebra(please check)**

Please check these simplified expressions(my answer is after the ;) 4(2k-6)-8(3-3k); -16k-(-48) 9+(-2k)+(-4)-6k; -8k+5 -x+4x-(-8x)-9+2x+1; 13x+(-8) 5(-3x+6)+8x; -7x+30 8+6x+4-8x; -2x+12 5(-m-3)+4m-10; -9m+5
*May 18, 2008 by Jillian*

**Algebra**

Please check and see if my answer are correct 1). 24v^2w^5x^8-20v^7w^9= -4v^2w^5(5v^5w^4-6x^8) 2). 81-25z^2= (5z+9)(9-5z) 3). 5y^3-7y^2-15y+21=(y^2-3)(5y-7) 4). x^2+4x-12= (x+6)(x-2) 5). 3x^2-26x+16= (x-8)(3x-2) 6).4v^6+6v^5-18v^4= 2v^4(2v-3)(v+3) 7). solve for y y^2+6y+8=0 y...
*August 11, 2014 by Mari*

**Accounting**

A check returned by a bank because the issuer's cash account balance could not cover the check is called a(n): a. Cancelled check b. Certified check c. Outstanding check d. NSF check
*October 18, 2012 by Anton*

**Math 116 algebra please check**

Solve for the indicated letter. e=9f, for f The solution is f = 1/9e Please check this
*July 16, 2008 by jay jay*

**math-please check my answer**

0.6x + 4 < 1.0x - 1 6x + 40 < 10x - 10 4x > 50 x > 12.5 can someone please check my work and tell me if I am right?
*July 30, 2010 by Michelle*

**Math[PLease Check]**

Problem: 25-x^2 6 ------ * --- 12 5-x What I got: 5-x --- 2 *PLease Check My Work. No. Factor the 25-x^2 into two factors. Then the 5-x in the denominator divides out. So then is it: 5+x --- 2 yes. 12x12
*February 24, 2007 by Margie*

**drwl / bobpursley please check**

I had posted three questions at 1:48pm, 2:40pm and 2:41pm and I am having problems with them. Can you please check them for me. Thanks! Repost if you are not satisified with the responses.
*March 13, 2007 by Mary*

**Math 116 algebra please check**

Simplify 6[-73-(-19-83)]=174 Please check
*July 16, 2008 by jay jay*

**Spanish-Please check**

Please check-Thank you I come from the library. Yo vengo de biblioteca.
*May 15, 2011 by Emily*

**Please check-Reiny**

Could you check these two problems? 3sqrt (y+2) = 3 is y = 25 Answers were: true or false I said true because I did it like this Square both sides=y + 2 = 3^3 y+2 = 27 y = 25 and sqrt (2y-6) = 3-y for y answes are: no solution 5 3,5 3 I said 3 because I did it like this: 8y -...
*October 12, 2010 by Michelle*

**chem- drbob222 please help**

my original question was: how do i figure this out?? How much heat does your body lose when 2.46 g of sweat evaporates from your skin at 25°C? chem - DrBob222, Tuesday, February 22, 2011 at 10:52pm q = mass water x delta Hvaporization. chem - Rebekah, Wednesday, February 23, ...
*February 23, 2011 by Rebekah*

**Plz -- Chem Help**

Posted by Rushi on Sunday, March 15, 2009 at 3:35pm. Question.. Nicotinic acid (niacin) is a monoprotic acid with the formula HC6H4NO2. A solution that is 0.012M in the nicotinic acid has a pH of 3.39 at 25C. what is the acid-ionization constant, Ka and pKa for this acid at ...
*March 18, 2009 by A*

**Algebra-Please check**

Please check- sqrt of 2x + 15 = x Answers: -5.3 -3.5 -3 5 I think according to my calculations it would be 5, correct? sqrt root of 7-x = 3-solve for x Answers: -2 2 4 -4 My choice would be 2 Is that correct- I squared both sides and came out with 7-x = 9 and then x = 2 Thank ...
*October 12, 2010 by Juliette*

**Math 116 algebra please check**

Multiply 1/7×(-3/7)=-3/49 Please check
*July 16, 2008 by jay jay*

**To Brady, please check**

Please check my answers down below.
*January 15, 2015 by Sarah *

**chem **

the element nitrogen and magnesium react to give magnesium nitride according to the balanced equation N2 + 3Mg = Mg3N2 suppose you have 0.3616 mol of n2 1-how many moles of mg are needed for complete reaction? 2-what mass of Mg3N2, in grams can be produced? ( the molar mass of...
*September 27, 2011 by burrprett*

**science**

Dr bob, can you check my reply to chem question from andy thanx
*May 10, 2010 by Andy*

**To sam!**

Was the five part unknown question for compounds A through E yours? If so, did you get it answered ok? no it was not mine! can you please check my math? can you please check my math?
*December 4, 2006 by DrBob222*

**Spanish 7th grade-Please check**

Please check. How would I say "I feel like drawing. Would it be: Yo tengo ganas de dibujar.
*April 6, 2011 by Sally*

**Health care please check answer**

Please check my answer thank you Verifying the accuracy of HCPCS codes is an important function in what ? I think that it is maintence of chargemasters
*March 11, 2008 by Rebbeckha*

**Health please check my answer**

Please check my answer thanks True or Faslse The term used to describe why medical treatment is necessary is procedure I say False
*April 8, 2008 by Graie*

**Math please check answer**

please check my answer :) The monthly payment of a $100,000 mortgage at a rate of 8 1/2 % for 20 years is 8678.23
*January 10, 2008 by keleb*

**alegbra**

Check this problem for me do I have negative sign right with the answer. -1(-1)+-5-5=-2/-10==-1/5 the one on top and the -1(-1) and on the bottom is -5-5. so check this answer for me. Please, Please
*March 7, 2009 by Elaine*

**alegbra**

Check this problem for me do I have negative sign right with the answer. -1(-1)+-5-5=-2/-10==-1/5 the one on top and the -1(-1) and on the bottom is -5-5. so check this answer for me. Please, Please
*March 7, 2009 by Elaine*

**English please check my answer**

please check to see if I have the right answer thank you The patient had a radiogram performed. What doed the root word indicate I think it's b
*March 20, 2008 by Dakotah*

**chem/plz/check work studying for a final**

23. A 32.3 L sample of a gas at 305oC and 1.20 atm is to be cooled at constant pressure until its volume becomes 28.4L. What will be the new gas temperature? Tf = Vf*Ti/Vi Tf =28.4L x (305+273)K / 32.3L = (28.4)(578)K / 32.3 = 16415.2/32.3 Tf = 508K I got this one wrong on a ...
*December 16, 2010 by julia*

**PERSON!!!!!**

I have no money at all no credit card or checks or anything! So can someone please tell me where to get a free background check or free record check?? I really need this please!!
*February 14, 2011 by NEEDS HELP!!*

**Health please check my answer**

Please check my answer thanks The radiologist is able to evaluate the movement of body organs by doing what procedure A. Ultrasound B. MRI C. Film survey D. Fluroscopic exam I picked A
*March 20, 2008 by Kaleigh-Anne*

**Chem Check Please!!!**

A voltaic cell is constructed that uses the following reaction and operates at 298 K: 2 Al(s) + 3 Mn2+(aq) 2 Al3+(aq) + 3 Mn(s). What is the potential, E, of this cell when [Mn2+] = 0.10 M and [Al3+] = 1.5 M? Answer: The EMF of this cell under standard conditions is : +1.66 V...
*March 20, 2014 by Matt*

**Chemistry(Please check)**

1) The Ka for acetic acid is 1.8e-5. What is the pH of a 3.18M solution of this acid? I did 1.8e-5 = x^2/3.18 x=sqrt 1.8e-5 X 3.18 = 7.56e-3 pH=-log(7.56e-3) = 2.12 The pH is 2.12 2) At 25 degrees celsius, the pH of a 1.75M NaCN solution (the Ka for HCN is 4.0e-10) is ? 4.0e-...
*April 2, 2012 by Hannah*

**drwls please check**

Can you please check my physics posts. Thanks!
*November 6, 2007 by Mary*

**Spanish-Check please! I need help**

Please check-I'm having a problem interpreting these questions and I have to answer them for homework. Could you please check my translation I'm not sure what these questions mean and I have to answer them for homework ¿Qué necesitas para comer en cereal?does this ask what I ...
*March 21, 2012 by Ellen*

**FRENCH WORK ASAP**

please please someone check my work I don't understand it fully so I am asking if someone could please check my work thank you if it's too much I'm sorry. God Bless
*January 21, 2009 by Hellokitty1993*

**CHEM**

At constant pressure, which of these systems do work on the surroundings? Check all that apply. 2A (g) + B(s) --> 3C(g) 2A (g) +2B (g) -->5C(g) A(g)+ B(g) --> C(g) A (s) +2B(g)--> C(g)
*February 10, 2012 by Akle*

**AP CHEM**

A secondary alcohol results from the attachment of a hydroxy group to which carbon atom? C | <---GIVEN STRUCTURE C1-C2-C3-C4 A) C1 B) C2 C)C3 D)C4 Answer is C! I have to explain why, but the teacher never taught us anything about organic chem. So please explain!
*April 5, 2013 by Anonymous*

**Chem Check Please!!!**

Calculate for the electrochemical cell below, Ag(s) | AgCl(s) | Cl–(aq) || Cu2+(aq) | Cu(s) given the following standard reduction potentials. Cu2+(aq) + 2 e– -> Cu(s) E = +0.337 V AgCl(s) + e– -> Ag(s) + Cl–(aq) E = +0.222 V a. –0.115 V b. –0.107 V c. +0...
*May 6, 2014 by Anonymous*

** chem**

consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...
*November 15, 2010 by julia-Drboob22*

**chem**

consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...
*November 15, 2010 by julia*

**please check my answer**

Please check my answer thanks :) Nurse employees at a non profit hospital neglect a patient,resulting in harm. The pt sues, in most states what would be the end result not really sure do they get charitable immunity
*November 14, 2007 by Anonymous*

**Algebra-Please check**

We're learning arithmetic sequences-please check this for me-it's my first day calcuulating htese and I'm not sure If t(1) = 5 and t(n) = t(n-1) + 2, find the first 4 terms of the sequence I think it would be 5,7,9,11 because the difference is 2 so I just added 2 to each of ...
*May 2, 2011 by Jodie-*

**chem/DrBob22**

consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...
*November 15, 2010 by julia*

**Chem Check Please!!!**

Using standard thermodynamic data from Appendix L of your text, calculate the equilibrium constant at 298 K for the following chemical reaction: CO(g) + H2O(l) CO2(g) + H2(g). Answer: CO(g) + H2O(l) CO2(g) + H2(g) G = (394.359 + 0) (137.168 237.15) = 20.04 kJ/mol G = ...
*March 17, 2014 by Maho*

**Chem.**

Can you also check this one, Please and thank-you! 23. Acetylsalicylic acid, commonly known as ASA, is the most widely used drug in the world. ASA has the chemical formula, C8H7O2COOH, and a Ka of 3.27 X 10 – 4 mol/L. What is the pH of a 10 mol/L ASA solution? The pH of the ...
*July 19, 2006 by Jacy*

**chem**

which compound will dissolve better in water, NaCl or CsCl...explain!!! *hint* check eletronegativity!
*March 3, 2011 by lee*

**Spanish-Please check my work**

Could someone please check this for me. I had to rewrite the following sentence using a direct object pronoun in two different ways. I wrote: Nosotros queremos leerlos. Los hosotros queremos leer. Thank you for checking
*January 29, 2012 by Jillian*

**algebra**

please check and correct thanks Problem: solve and check the inequality if possible |4F+8|< 12 positive: negative: |4F+8| < 12 |4F + 8| < -12 4F + 8 -8 < 12 - 8 4F +8-8 < -12-8 4F < 4 4F< -20 F < 1 F< -5 solutions 1 and -5 or -5 < F < 1 check ...
*February 7, 2012 by ann*

**Social Studies**

Please Help I know but please I'm the parent and my son tell me to check and i don't know 2 much please in your own words please :( :( :( :( please pretty please please please !!!! :( don't give give me links please in your own words please please :( !!!!! Identify two ...
*April 6, 2013 by Alejandra *

**calc check please?**

Given the differential equation: dy/dx = y(1+x), y(0)=1, Use Euler's method with step size .1 to approximate y(.3). ... please check this for me! no one has responded to this question yet.. thanks. y' = y(1+x), y'(0) = 1(1+0)=1 ->the solution has slope 1 at the point (0,1...
*July 2, 2007 by COFFEE*

**Sapnish-Please check SraJMcGin**

Please check if you have time we had to select the correct answer for the two questions 1.¿Ellas te escuchan? Ellas me escuchan. 2. ¿Me escuchas? Te escucho.
*January 10, 2012 by Jonathan*

**math(check answers please)**

PLEASE CHECK THESE ANSWERS compare the pair of numbers use <,>,= 3/4 _ 6/8 A.3/4=6/8(I PICKED THIS) B.3/4<6/8 C.3/4>6/8 Write the decimal as a fraction or mixed number in simplest form. 3.45 A.4 3/4 B.4 9/20 C.3 3/4 D.3 9/20(I PICKED THIS
*November 20, 2013 by matt*

**Spanish-Please check SraJMcGin if possible**

Please check if you have time we had to select the correct answer for the two questions 1.¿Ellas te escuchan? Ellas me escuchan. 2. ¿Me escuchas? Te escucho.
*January 10, 2012 by Jonathan*

**Health please check my answer**

Please check my answer thanks True or False The term malignant, when used in reference to hypertension is a treatable cancer I said True
*April 8, 2008 by Graie*

**Health please check my answer**

Please check my answer The term neoplasm refers to what ? A. invasive carcinoma B. malignant growth C. growth of a tissue D none of these I say it's B
*April 8, 2008 by Graie*

**chemistry(Please Check)**

You dissolve 6.55 g of potassium nitrate in enough water to make a 250. mL solution. What is the molarity of this solution ?Answer: 0.0262 Please Check my answer
*April 23, 2012 by Wurola*

**Health please check my answer**

Please check my answer thanks What does the abbrevation "AD" represent in a medical report ? My answer is both ears
*March 20, 2008 by Kaleigh-Anne*

**precalculus/check please**

Find the difference quotient by using f(x+h)−f(x)/h 1) f(x) = √(2x+1) answer (√(2x+1+2h) - √(2x+1))/h can you check please
*September 16, 2012 by jack*

**please check my answer**

please check my answer thanks :) four chairs at $22.00 each 1 table for $212 and umbrella for $85 What is the total of this bill if the sales tax is 6% $22 x 4 ----- 88 212 + 85 -------- 385 x 0.6 % -------------
*January 7, 2008 by keleb*

**please check my answer**

please check my answer thanks :) four chairs at $22.00 each 1 table for $212 and umbrella for $85 What is the total of this bill if the sales tax is 6% $22 x 4 ----- 88 212 + 85 -------- 385 x 0.6 % -------------
*January 7, 2008 by keleb*

**science**

Please check my work 3M solution of NaOH (1 liter worth) molecular weight: 39.99 3 x 39.99= 119.97 grams dilute to 1000mL 3 M solution of HCl (1 L) c1v1=c2v2 (12M)(?)= (3M)(1000mL) ?= 250 mL please check thank you
*October 13, 2008 by ag*

**Language Art (Please Check)**

please check 6.which of the following is a run-on sentence? A.terri had a hard time continuing the tour she was so tired from the day's events.(I PICK A) B.som students decided to rest,so they returned to their hotel. C.washington is a great place to visit because there are so...
*March 6, 2014 by matt*

**Chem Check**

The first law of thermodynamics is the application of the conservation of energy principle to heat and thermodynamic processes.
*June 10, 2010 by Amy~*

**organic chem **

does 2,3 hexanediol have 2 stereocenters? I just wanna check that before i attempt to draw isomers
*March 12, 2015 by jon*

**Math**

At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
*November 6, 2009 by Anna*

**Math**

At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
*November 6, 2009 by Anna*

**Math**

At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
*November 6, 2009 by Anna*

**Algebra-Can you please check this Reiny**

Can you check this: x^-3y^2/x^2y^-4 I think the answer is y^6/x^5 Thanks for explaining the other problem
*October 6, 2010 by DeAnne *

**business **

can you please check my answers to the questions i realy need to check them if they right or wrong
*February 15, 2012 by sososola2012*

**Math please check answer**

Please check my answer thanks :) Add the following and reduce answer to lowest terms. 1/3 +5/6 + and 3/8 ----------------------- 1/3 = 8/24 5/6 = 20/24 5/6 = 9/24 -------------- 37/24 = 1 13/24
*January 7, 2008 by keleb*

**please check**

5 x < - 25 can you check. 5x<-25 25 -------- 0 so that equals x < 0 and i have a question is my teacher trying to find a method or an answer from me?
*January 7, 2008 by Taylor*

**Calculus (Check)**

This seems to easy. Check please. Find. Lim (x^2)-4 x->2 e I substitute in 2 (2^2)-4 e gives me 4-4 e So my answer is e^0 or 1.
*September 14, 2012 by Greg*

**Polynomials check my answer**

My brother said I did this wrong can someone check this for me please X Y-1 = sum(x)+ (y-1)=(X+y-1) diff(x)-(y-1)=(x+y+1) Product (x) (x-1) = (xy-1) = (xy-1)
*September 19, 2013 by tela*

**Math please check answer**

please check my answer thanks What would be the amount of compound interest on $ 8,000 invested for one year at 6 %, compounded quarterly ? (need to show all of your work ) ok this is what I got $8,000 x 0.6 = $ 480 $ 480 / 4 = $120 $120 x 0.6 / 4 = $ 121.80 $8,241.80 x 0.6 /4...
*May 19, 2008 by Maria*

**Chem Check**

Can someone verify my answers please? convert the folowing into a pressure reading expressed in torr A. 1.25atm * 760torr/1.0atm = 950. torr B. 2.48 x 10^-3 atm * 760torr/1.0atm = 1.88 torr C. 4.75 x 10^4 atm* 760torr/1.0atm = 3.61 x 10^7 torr D. 7.60 x 10^6atm * 760torr/1....
*March 17, 2009 by Chopsticks*

**Vectors, please check drawing**

Could you check to see if Ive done this right? h t t p : // imageshack . us/photo/my-images/269/vectoriz . j p g /
*September 22, 2011 by -Untamed-*

**chem - check euqation please**

suggest a test chemical that can be added to the water sample to precipate the lead (II) ions. Show a chemical equation for the formation of the precipate you have chosen. I chose Hg(N03)2 so Pb2 + Hg(NO3)2 -->Pb(NO3)2 = Hg I know I still have to balance it but is my ...
*May 28, 2008 by Emily B*

**chem**

Hi am doing a question for HW. Just need to double check: Is this the balanced equation for the combustion of titanium(IV) chloride? TiCl4 + O2 ---> TiO2 + 2Cl2
*September 16, 2007 by manny*

**chem homework help**

can you check my work? Give the conjugate acid for each of the following bases. A. CN- = HCN B. SeO4^2- = HSeO4- C. HCO3- = H2CO
*April 25, 2010 by Anna*