Saturday

July 4, 2015

July 4, 2015

Number of results: 124,996

**calculus**

If the line y=mx-5 does not meet the curve y=3x^2-6x+7 then value of m is in the open interval (a,b). Find the exact value of b.
*February 7, 2012 by Yvonne*

**Economics**

What percentage of Americans GDP per capita is available to the average citizen of Mexico? Americas GDP $35060.00 Mexico GDP $8540.00 To find this answer, divide 8540 by 35060. Move the decimal point in your answer two places to the right to get the percentage.
*September 20, 2006 by LIsa*

**math **

Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,650 with factory and dealer rebates of $5,100 a-Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the nearest cent. b-Find the ...
*June 3, 2014 by leelee kay *

**Math help plz ASAP.**

Rationalize each denominator. 6 + square root of 2 ____________________________ square root of 3 PLZ HELP..dont kno how to do this question.plz explain..thanks You have (6 + sqrt(2))/sqrt(3) multiply that by sqrt(3)/sqrt(3) to get [(6 + sqrt(2))*sqrt(3)]/3 and simplify To ...
*October 15, 2006 by Karla*

**math**

-5y^3(y-6)+4y^3(y-7) OK - first, distribute -5y^3 to the (y-6). You should get -5y^4+30y^3. Do the same thing by distributing 4y^3 to the (y-7), leaving you with 4y^4-28y^3. Then combine the y^4 terms and the y^3 terms to get the answer of -y^4+2y^3.
*January 4, 2007 by oscar*

**Algebra II**

What is the first step for solving this system by substitution? DO NOT SOLVE!! 3x-2y=8 x+7y=10 How many solutions does this system of equations have? 3y-6x=12 y-2x=4 My answer is 1 solution. Is this correct?
*October 28, 2007 by JaneLee*

**The US constitution**

Please check my answer thanks :) The constitutional basis of the right to privacy is in the First admentment true or false I said True
*November 14, 2007 by Anonymous*

**physics**

You have two forces, 116.1 N and 78.6 N. What is their resultant if the first acts up- ward and the second acts downward? Answer in units of N.
*September 10, 2010 by laura*

**Math please help**

Let s and t be any two whole numbers, excluding 0. True or False The statement s/t = t/s is always true? and What did you do first to answer this question?
*November 30, 2010 by Jenni*

**Math**

A person has a total yearly income of $36,000. The part of thier income spent on transportation is 15%. How do I find the fraction in simplest form that represents the part of thier income spent on transportation? I dont want the answer, just how to get the answer. Thank you!
*June 8, 2008 by Mary*

**Math**

A person has a total yearly income of $36,000. The part of thier income spent on transportation is 15%. How do I find the fraction in simplest form that represents the part of thier income spent on transportation? I dont want the answer, just how to get the answer. Thank you!
*June 8, 2008 by Mary*

**Health care please check my answer**

Please check my answer thank you The lateral ports were removed. Where would these ports be located ? A. Toward the back B. Toward the head C. Farthest form the median D. Toward the front My answer is B
*March 19, 2008 by Kaleigh-Anne*

**Physics**

A rock is thrown downward from an unknown height above the ground with an initial speed of 28 m/s. It strikes the ground 4.4 s later. Determine the initial height of the rock above the ground. The acceleration of gravity is 9.8 m/s 2 . Answer in units of m 014 10.0 points An ...
*October 8, 2014 by Bill Nye*

**math**

please help me i need help before tomorrow please help i need help on my homework Post a question and someone will try to help. Be specific about what you don't understand. i need help on greatest common factor What unit would you use if talking about area It would be square ...
*September 5, 2006 by Asia*

**Pre-Algebra**

this is the question please help me explain what to do its confusing. The rate that a hot tub drains is 5.9L/min.How many minutes does it take to drain a 160L hot tub? ~27 mins. Rate*time= volume solve for time. ((27.12 to be exact)) Hi Science. (And don't take this the wrong ...
*May 14, 2007 by Kemmaris*

**American History**

I am trying to locate either the name of the school or school district (i.e. City or County) that first required public schools to teach both male and female students. I know that in 1789 Massachusetts was the first state to make this requirement but I have not been able to ...
*September 10, 2010 by AshleyC*

**Math/Algebra HELP**

Can you please check these answers: 1. If the first Now= -9, which equation represents this sequence? -9, -4, 1, 6, 11 A. Next= Now -5 B. Next= Now + 5 C. Next= 5* Now -1 D. Next= 5* Now + 1 Answer: A 2. Which inequality statement is true? A. 8 < (a square root sign with 78...
*April 18, 2009 by Snoopy*

**Economics**

David lives in Manhattan, where the combined state/local sales tax is 8.375 percent. David just purchased a digital camera that was priced at $800. Determine the sales tax he paid by calculating 8.375 percent of $800 (multiply by 0.08375). How much sales tax did he pay? Could ...
*March 16, 2015 by Kesha*

**Poem: Beware do not read this poem by Ishmeal Reed**

Could someone please check these ASAP! 1. What story does the poem tell in the first three stanzas? Answer: The story that the poem is telling is a women who lived amoungst mirrors had locked herself in her house, and two villagers broke in, and she escaped into her mirror. ...
*January 26, 2009 by Remy*

**Math**

What is the easiest way to solve for x. (these are fractions, not dividing) 4/15=x/5 would I find the common denominator or cross multiply and x/3=x+10/6 same question
*October 15, 2009 by Anonymous*

**college algebra**

given the following polynomial find the zero and multiply of each were the graph touches the x axis number of turning points fx =(x-4)(x^2-25)
*March 4, 2013 by zachary*

**French**

Could you please check these thanks. 1. Après les cours, Michel et Chantal vont au-------. A. Café B. ensemble Answer: A 2. Ils trouvent-------- à la terrasse. A. une table libre B. une tartine Answer: A 3. Le serveur------ la carte à Chantal. A. regarde B. donne Answer: B 4. ...
*March 10, 2009 by Anonymous*

**Chemistry**

Estimate the value of the equilibrium constant at 550 K for each of the following reactions. 1) 2CO(g)+O2(g)--->2CO2(g) 2) 2H2S(g)--->2H2(g)+S2(g) i used the equation K=e^(delta G/RT) for the first problem and got K=1.40*10^-49 but it was wrong. Is there a different ...
*April 17, 2010 by Kyle*

**Math 101**

Debra is buying prizes for a game at her school's fundraiser. The game has three levels of prizes, and she has already bought the second and third prizes. She wants the first prize to be nice enough to attract people to the game. The game's manufacturer has supplied her with ...
*November 20, 2009 by Rushell*

**Precalculus **

Polynomials Problem: 1. List two factors of h(x) of the form x−r: x, x + 2 (right answer) 2. A function of the form ax^n that approximates h(x) for large values of |x| is f(x)= 2x^4. (right answer) 3. This tells us that the degree of h is 4 and the coefficient of the ...
*February 7, 2010 by jh*

**Math**

Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? Answer: 1306.25 4. Using your answer to the question above, what is the net dollar amount of that rose ...
*May 20, 2013 by Ann*

**6th grade science**

an example of homeostasis is A) maintaining a constant body temperature B) responding to stimuli C) keeping the same number of cells in an organisms D)all of the above I put A) and had the wrong answer. I put that answer since homeostasis is maintaining a constant internal ...
*November 16, 2014 by E6*

**Algebra re-posting**

I already typed this in 2 days ago, but i did not get to see if I had an answer back, can somebody help me to the link, or can help me do the work, I found the answer using the trial and error method, but is there another way to find it without using the trial and error ...
*April 24, 2008 by Hailea*

**PHISIC**

A bouncy rubber ball is dropped from a height of about a metre above the ground .it falls to the ground, bounces and then rises back to almost the height from which it was dropped. Describe the main energy transformations that take place from the point at which the ball first ...
*December 19, 2012 by sam*

**Statistics**

A city ballot includes a local initiative that would legalize gambling. The issue is hotly contested, and two groups decide to conduct polls to predict the outcome. The local newspaper finds that 53% of 1200 randomly selected voters plan to vote "yes," while a college ...
*October 28, 2013 by Jeffrey*

**physics**

Physics Genius! please let me! Three objects lie in the x, y plane. Each rotates about the z axis with an angular speed of 6.12 rad/s. The mass m of each object and its perpendicular distance r from the z axis are as follows: (1) m1 = 6.36 kg and r1 = 2.20 m, (2) m2 = 3.92 kg ...
*July 2, 2015 by Lola*

**science**

Shown below are the data giving the length of life of lights in an underground tunnel. 9.0 months 7.0 months 8.2 months 8.3 months 7.8 months 8.1 months 7.5 months 7.6 months 9.1 months 7.4 months I calculated the standard deviation to be about 0.679. Estimate the probability ...
*January 22, 2012 by Joy*

**Statistics**

Shown below are the data giving the length of life of lights in an underground tunnel. 9.0 months 7.0 months 8.2 months 8.3 months 7.8 months 8.1 months 7.5 months 7.6 months 9.1 months 7.4 months I calculated the standard deviation to be about 0.679. Estimate the probability ...
*January 22, 2012 by Joy*

**Calculus**

I need to find the slope of the graph of the function at the given point. Function: f(theta)=4sin(theta)-(theta) Point: (0,0) I tried finding the derivative of the function at theta=0, but I got 0 for an answer. I checked the answer in the back of my book and it is 3. I just ...
*September 3, 2007 by Corin*

**Math, derivatives**

f(x) = x² + 2Cos²x, find f ' (x) a) 2(x+cos x) b) x - sin x c) 2x + sin x d)2(x - sin2x) I got neither of these answers, since the 2nd part should be chain rule, right? f(x) = x² + 2Cos²x = x² + 2(Cos x)² then f '(x) = (2)(2)(cosx)(-sinx) My answer: f '(x) = 2x - 4cosxsinx If ...
*May 5, 2008 by Terry*

**Physics**

A free electron and a free proton are exactly 0.70cm apart. Find the magnitude of the acceleration of the proton. Express your answer with the appropriate units. Find the direction of the acceleration of the proton. Find the magnitude of the acceleration of the electron. ...
*January 24, 2014 by James*

**Finance**

On August 1, 2005 you invested $3,000 into a mutual fund. You then invested $1,000 into that same mutual fund on the first day of August for each of the years 2006 through 2013. You averaged a 7.25% annual rate of return on your investment in this mutual fund. What is the ...
*September 20, 2013 by Angie*

**Chemistry**

Write a balanced equation using the correct formulas and include conditions (s,l,g or aq) for each of the following reactions. 1)Carbon monoxide gas reacts oxygen gas to produce carbon dioxide gas. Express your answer as a chemical equation. Identify all of the phases in your ...
*November 14, 2010 by TMV*

**Calculus**

Find the positive integers k for which lim ->0 sin(sin(x))/x^k exists, and then find the value the limit. (hint:consider first k=0, then k=1. Find the limit in these simple cases. Next take k=2 and finally consder k>2 and find the limit in these cases as well) I did this...
*September 24, 2011 by Sybil Jones*

**Anatomy and Physiology**

A eukaryotic cell in a human body has just reproduced assexually. Which of the following has mostl likely just occurred? A. Metastasis B. Fertilization C. Mitosis D. Meiosis Student Answer: B Answer: Incorrect Reference: 18. In which phase of the cell cycle are the ...
*February 3, 2014 by Diana*

**chemistry**

How many grams of C6H12O6 need to be dissolved in 350g of water vto have a solution which freezes at -2.50 degrees celcius? delta T = Kf*m You know Kf, m = molality = mols/kg and mols = grams/molar mass, delta T is 2.50. Solve for grams. Post your work if you get stuck. what ...
*May 31, 2007 by jessica*

**Math**

1. Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? (1 point) Rosa: "Use square root 9 and square root 25 to estimate." Roberto: "I will use square root 4 and square root 9." Andrea: "It should be square root 11 and ...
*December 1, 2013 by anonymous*

**Algebra**

Can someone tell me if I am right? I need to find the equation of a parabola. I am not sure if this is the correct way or if I have the correct answer. Vertex at origin, focus is at (0,3) Equation of parabola vertex (0,0) focus (0,3) focus (h,k+p) (0,0+3) y=0-3 directrix y=-3 ...
*April 30, 2008 by Tim*

**Physics**

A particle travels to the right at a constant rate of 6.8 m/s. It suddenly is given a vertical acceleration of 1.8 m/s2 for 5 s. What is its direction of travel after the acceleration with respect to the horizontal? Answer between −180◦ and +180◦ and What is ...
*September 18, 2011 by Jack*

**physics**

A particle travels to the right at a constant rate of 6.1 m/s. It suddenly is given a vertical acceleration of 1.8 m/s 2 for 4.5 s. What is its direction of travel after the acceleration with respect to the horizontal? Answer between −180◦ and +180◦ . Answer ...
*October 5, 2013 by Sylvia*

**Algebra**

How do I estimate a salary? I tried but I think it might be wrong Someone earns $389 a week I have to estimate the salary in 6 months which is 26 weeks. I multiplied 389 by 26 and got 10,114 Did I do this right?
*June 5, 2015 by Anonymous*

**Statistics**

A doctor want to estimate the HDL cholesterol of all 20- to 29- year old females. how many subjects are needed to estimate the HDL cholesterol within 3 points with 99% confindence assuming s=15.8 based on earlier studies?
*June 12, 2015 by Sonya *

**chemistry- can you check my answers?**

can you please check my answers?? 9. For the following reaction delta H=2816 kj. 6 CO2(g) + 6 H2O(l) -> C6H12O6(s) + 6O2(g) how is the equilibrium yeild of C6H12O6(s)affected by each of the following? a) increasing pressure of CO2 increase decrease no effect Answer: ...
*April 20, 2011 by Lily*

**Math**

Hello! Can you check my answers for these questions? Thank you in advance (= 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7), (14, 11), (14, 15), (8, 10), (9, ...
*January 27, 2015 by Wendy*

**U.S. Government--Need Help !**

I have this question on an assignment and I need help. Many believe that political parties are incapable of serving as an avenue for social progress because: A. party positions change so frequently. B. the leaders who draft party platforms are generally out of touch with the ...
*January 21, 2007 by Kyle*

**Math**

find median 4,5,6,8,11,17 answer 7 find mean and median 68,69,71,75,76,76,81,82,86,88,93,94,95,95,96 answer mean is 83 median is 82 ?
*October 17, 2009 by david*

**Stats **

how did you come to this answer? The answer is approximately =0.017 b) Ten Cobalts are randomly selected and the miles per gallon for each car are recorded. What is the probability that the mean miles per gallon exceed 34 miles per gallon? The final answer will be = 0.0351
*May 28, 2012 by Stacey*

**physics**

Equivalent forces derivation problem. EXAMPLE: Derive the formula for F3 in terms of the experimentally measured quantities m1, m2, 1, and 2. [Answer: F3=m1gcos1+m2gcos2.] Make sure you understand how this formula was derived. QUESTION: If the mass of both weights is 150 gm, ...
*February 1, 2010 by Judy*

**MAth**

Ida plans to construct a square showing exact measurements of the sides. Which combination of tools would best help Ida construct the square? Answer A: pencil, compass, and straightedge B: pencil, string, and compass C: pencil, ruler, and straightedge D: pencil, straightedge, ...
*September 25, 2011 by Taylor*

**math**

There are 18 boys and 60 girls working on a community service project. They work in groups where each group has the same number of boys and the same number of girls. Q1: What is the first step to finding the greatest number of groups possible? A. Multiply 18 times 60 B. Divide...
*October 8, 2014 by Kyle*

**stats**

An investment broker reports that the yearly returns on common stocks are approximately normally distributed with a mean return of 12.4 percent and a standard deviation of 20.6 percent. On the other hand, the firm reports that the yearly returns on tax-free municipal bonds ...
*October 3, 2013 by Help*

**statistics**

An investment broker reports that the yearly returns on common stocks are approximately normally distributed with a mean return of 12.4 percent and a standard deviation of 20.6 percent. On the other hand, the firm reports that the yearly returns on tax-free municipal bonds are...
*May 13, 2014 by please help!*

**Math.**

How do you find the slope of this inequality (to graph it) x/14-85>6? The first thing to do is to determine what type of equation it is and what the solution set is. This is an inequality in one variable so it will only be some subset of the x-axis. We're given: x/14-85>...
*September 7, 2006 by Mel*

**Physics**

question: img75.imageshack.us/my.php?image=dsc00702gn9.jpg The answer key said the answer is "C"...HOW!?!??!?!!? Please explain to me why it's 'C'
*June 21, 2008 by Tom*

**calculus**

Which of the following is a representation of the domain of the expression: h(x) = 12x + 3 / 2 - square root over x a)[0,4) b) [(0,4) U ( 4, infinity) I know that hte answer is b, but how do I come to this answer?
*September 27, 2008 by Vana*

**math**

im not getting the proper answer from this question: 5.0=k=c1/c2= 1.00g-x/15ml all over x/50 ml = (1.00-x)50/15x the answer comes out ot .40g
*October 24, 2008 by tom*

**Dog Hunting Training**

please check my answer thanks :) What is the distance of a lure course for a Junior Courser Title My answer is 600 yards
*January 11, 2009 by Mallie*

**Algebra/Math**

Could you please check these thanks for your time. Directions: Arrange the terms of each polynomial so that the powers of x are in ascending order. 1. 5+x^5+2x^3+4x Answer: 5+4x+2x^3+x^5 2. x^2y^4+x^5y^3+xy^2+x^3y Answer: xy^2+x^2y^4+x^3y+x^5y^3
*March 24, 2009 by Cindy*

**math**

Could someone check my answer? I need to figure out the equation of the circle given the center of (-9,0) and radius of 7. (x-(-9))^2 + (y-0)^2 = 7^2 answer(x+9)^2 + (y-0)^2 = 49 is this correct?
*September 20, 2009 by sam*

**Algebra**

(5x^3-6x^2+8)/(x-4). (4) 5 -6 8 5 14 72 For the remainder I divided 72/4 for 18. So the whole answer would be 5x^3+14x^2+18. But the book's answer is 5x^2+14x56+232/(x-4). Where did these numbers come from and where did I mess up?
*November 10, 2009 by Jeremiah*

**Chemistry **

what would the quantity of heat gained or lost be for 1.25 mol NaOH(s) dissolves in water? Could you post the answer and how you got the answer. Thank You
*May 16, 2010 by Anonymous*

**Math**

Write each equation in standard form. 1.y-3=-2.4(x-5) -The answer I got was 2.4x + y = 15. Could someone please check my answer and tell me how to solve it if it wrong? Thanks
*August 21, 2010 by Shadow*

**physics**

My answer for this question A 11.0 kg box is released on a 37 degreesincline and accelerates down the incline at 0.25 m/s^2. What is the coefficient of kinetic friction? My answer was 68.2 and it was incorrect.
*October 15, 2010 by Anne*

**Algebra**

Divide: (-8y^7x+15y^7x^6)/(-2y^2x^5) I got y^5(-8+15x^5)/-2x^4 It won't let me add parens. in the answer any suggestions. It does say simplify your answer as much as possible.
*February 5, 2011 by Lisa*

**algebra**

can anyone show me the steps to convert to scinctific notation of these two problems: .000316 which the answer is 3.16x10^-4 and 0.000517 which the answer is 5.17x10^-4
*September 20, 2011 by katy*

**Physical Science **

How much work is needed to lift an object with a mass of 51.0 kg to a height of 2.00 meters? Calculate your answer in Joules Answer
*February 26, 2012 by Anonymous*

**LA**

who is John Newberry and what signifigance did he have to the award, (I just need help finding a site with the answer on it, not the actual answer because that would be cheating)
*March 26, 2012 by Katniss*

**MATH**

2x-3(x+4)= -5 The answer is -7 , but I am unable to get this answer. tried working problem several ways get different answers for ex. I get -17 or 7 Please I need some help
*July 24, 2012 by SARA*

**multiplying fractions**

write a word problem for 1/3 x 1/4 use the definition of multiplication and math drawing to help determine the answer. explain you answer.
*April 24, 2014 by bernadette*

**math**

Write down all the odd numbers that are greater than-8 and less than 7.Please answer it i'll be appreciate to the one who will answer it back.THANK YOU!
*September 20, 2014 by Kashaf Imran.*

**Geometry**

One of two similar triangles has an area of 1/4 times than that of the other. What is the ration of the trangles' perimeter? (I know that the answer is 1:2, but i dont why that is the answer :( )
*February 22, 2015 by Anonymous*

**Math**

Dear Ms. Sue, Thank you for helping me very much. I was a little confused on your response to your answer posted at 7:23. Would my answer be 18 instead of 12? Thank you!
*March 9, 2015 by Alice*

**Math**

If sin(x) = 4/5 and cos(y) = 5/13 with both x and y terminating in quadrant 1 find the exact value of cos(x-y) I know that the denominator will be 65
*March 19, 2010 by Bryan*

**geometry**

a snow globe has a diameter of 6 inches.find its exact volume.then approximate its volume using 3.14 for [pi]
*April 5, 2010 by Anonymous*

**math - natural logs**

Find the EXACT solution to e^(1-x) = 4^x You must use logs, not just a calculator.
*October 31, 2011 by BJ*

**Algebra**

Use properties of logarithms to find the exact value of each expression. Do not use a calculator. 8^log 8^5
*April 7, 2013 by Kendall*

**trig identities**

Find the exact value of cos (2theta) given csc theta = 8/3 and 0 < theta < pi/2
*May 8, 2013 by Sean*

**pre calc**

Find the exact value of sin(x-y) if sinx=-3/5 in Quadrant III and cosy=5/13 in Quadrant I.
*May 21, 2013 by Jennifer*

**trig**

if (-12,5) is a pointon the terminal side of an angel 0 find the exact value of six trig funcation of 0
*June 19, 2014 by sal*

**calculus**

find the exact arc length of the curve: y=0.5(e^x + e^-x) for 0 is less than or equal to x and x is less than or equals to ln2.
*May 6, 2015 by may*

**Science **

Can someone check if these are right: Tell the reaction rate 1.)Question: one antacid tablet is placed in a glass of cold water, while another table is placed in a glass of hot water. Answer:TEMPERATURE 2.) Question: a mixture of baking powder, flour, sugar, and eggs is placed...
*January 14, 2014 by Kalie*

**Physics **

1) A physics book is moved once around the perimeter of a table of dimensions 1 m by 3 m. What is the distance traveled? 2) A window washer drops a brush from a scaf- fold on a tall office building. What is the speed of the falling brush after 2.7 s? (Neglect drag forces.) The...
*September 20, 2012 by Melanie*

**Chemistry**

Consider a mixture of the two solids BaCl2.2H2O (FM 244.26) and KCl (FM 74.551). When the mixture is heated to 160C for 1 hour, the water of crystallization is drive off: BaCl2.2H2O --> BaCl2(s) + 2H2O(g) A sample originally weighing 1.7839g weighed 1.5623g after heating. ...
*September 28, 2011 by Asuna*

**trig**

How do I solve this? If cos x= 3/5, find the exact value of cos 2x
*December 1, 2008 by Paul*

**Math**

Find the exact value of Sin^-1(sin(13pi/15))
*March 14, 2011 by Kelly*

**math: algebra**

I need help checking my answer. I wasn't sure if 8 and 8 were both side lenegth's or if 22 is the slant height but I think it is got kind of confused there also wasn't sure how I was suppose to solve it but I sloved the problem how I though it was suppose to be sloved I have ...
*March 5, 2015 by meep*

**Calculus**

I don't know if I did these problems correctly. Can you check them? Use Integration by parts to solve problems. integral x^3(lnx)dx u=lnx dv=x^3dx du=1/x v=x^4/4 Answer:(x^3)(lnx)-(x^4/16) integral xcosxdx x cosx 1 sinx 0 -cosx Answer: xcosx+cosx integral e^2x(sinx)dx u=e^2x ...
*November 18, 2007 by Anonymous*

**Economics**

Could you please check this Directions: Match each item with the correct statement. Here are the words: supply elasticity law of supply price system technology price ceiling supply inelastic supply curve shortage market supply taxes 1. principle that suppliers will normally ...
*May 14, 2009 by Taylor*

**math**

the hypothenus of a right angle triangle is 6cm with respect to the other two sides, one is 2cm longer than the other. Find the length of the two other sides to the nearest tenth. when i worked out this question, I got the answer as X=-5.1 or X=3.1 is my answer right, if it is...
*January 3, 2011 by ted*

**Chemistry **

Estimate the rate of the reaction, H2SeO3 + 6I- + 4H+ Se + 2I3- + 3H2O given that the rate law for the reaction at 0°C is rate = (5.0 × 10^5 L5mol-5s-1)[H2SeO3][I-]^3[H+]^2 The reactant concentrations are [H2SeO3] = 1.5 × 10^-2 M, [I-] = 2.4 × 10^-3 M, [H+] = 1.5 × 10^-3 M. My...
*February 1, 2015 by Is my answer right?*

**Calculus**

The radius of Earth at the equator is approximately 4000 miles. Suppose a jet flies once around Earth at a speed of 5000 miles an hour relative to Earth. If the flight path is a negligible height above the equater, then among the following choices, what is the best estimate of...
*November 27, 2007 by Arnold*

**chemistry**

how much thermal energy is needed to raise 500.0g of H2O at 50.0*C to steam at 100.0*C? step by step solution and answer!!???!! answer? You have to be kidding. Are you taking a quiz and want to turn it in? Goodness. Find the heat in each of the following. heat the water from ...
*April 12, 2007 by crystine cole*

**check**

#19, Inclusive Language-Quoting from Biased Material - The mayors and their wives were invited on a tour of the state buildings. Answer: The maors and their wives[sic] were invited on a tour of the state buildings. #8. Puctuation-colon - Studing is exciting: find something ...
*August 24, 2007 by marie*

**inverse function question**

Hey, I'm having trouble fully understanding absolute value graphs and I've been asked find the largest value of a so that f^-1 exists for the function: f: (-efinity,a) --> R where f(x)= logel2x-1l *note: i have used 'l' to represent the straight line indicating the it is an...
*November 8, 2007 by elle*

**Calculus**

Evaluate the definite integral from [0,4] 4x^2 dx, by using its definition as a limit of approximating sums. First, I solve analytically so I know the answer I am trying to reach: 4/3 * x^3 over [0,4] = 4/3 * 4^3 = 256/3 Now, by approximating sums, I can get: 256 * lim(n ->...
*May 30, 2011 by Sean*