1. Chemistry

    How would I find the limiting reagent in the chemical equation...CuSO4*5H2O+2K2C2O4*H2O-->K2[Cu(C2O4)2]*2H2O+K2SO4+5H2O I got that K2C2O4 was the limiting reagent but I don't know if that is correct.

    asked by Zachary on July 9, 2012
  2. chem

    a certain substance strongly absorbs infrared light having a wavelength of 3.75µm. what is the frequency of this light in hertz? i know that i have to use the equation c = frequency x wavelength and that c = 2.998 x 10^8 m/s. how do i convert that to

    asked by lyne on January 2, 2009
  3. Algebra

    A bank teller counts her $10 and $5 bills at the end of the day. The total value of the money is $595. Let f represent the number of $5 bills. I have to write an equation that represents the total value of the money. I know f = 5 and 2f = 10 but I am stuck

    asked by Kristen on May 5, 2015
  4. Calculus

    Given the equation xy = 2, set up an integral to find the length of path from x = a to x = b and enter the integrand below. I did the integral from b to a and set it equal to the sqrt(1+4/x^4), because I found y to equal 2/x and the derivative to be

    asked by Katelyn on March 13, 2009
  5. physics

    A uniform electric field is directed upward and has a magnitude of 5 N/C. What are the magnitude and direction of the force on a charge of -3 C placed in this field? F=Eq E=5 q=-3 5(-3)=-15N Downward Ok I have the downward correct the -15 is incorrect. Did

    asked by kkpdiluvu on July 25, 2012
  6. Calculus 1

    Use Newton's method with initial approximation x1 = −2 to find x2, the second approximation to the root of the equation x^3 + x + 1 = 0. *I got -1.307692 for my answer but it said that was wrong, so then I tried rounding it to two decimal places and got

    asked by TayB on November 12, 2015
  7. Finite math

    Consider the supply equation p=2x+10, where x is the quantity supplied in units of 1,000 and p is the unit price in dollars. Determine the number of units of the commodity the supplier will make available in the market at the given unit price. p=18

    asked by Carrie on November 11, 2018
  8. Chemistry

    A sample of Xe gas in a 20.00 liter container at 1.45 atm and 85 degree Celsius . It is compresses to a new value of 0.250 liter at 350 degree Celsius. What is the pressure the Van der Waals equation. help please!

    asked by Sean P. on May 22, 2010
  9. chemistry

    Consider the exothermic reaction CoCl42-(aq) + 6 H2O(l) Co(H2O)62+(aq) + 4 Cl -(aq). Will the equilibrium concentration of CoCl42- increase or decrease when the following changes occur? a) HCl is added. (b) Co(NO3)2 is added. both of those compounds are

    asked by Robbin on April 19, 2011
  10. Substitution Method

    Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 x + y = -4 x - y = 2 In the second equation, x= y+2 Putting that in the first.. (y+2) + y= -4 subtract two from each side, then divide each side by two to get y. Then, put

    asked by Margie on October 16, 2006
  11. Calculus

    Determine the maximum sustainable yield (the maximum harvesting and still keep the population stable) of population of logistic growth is Kr/4. I know the logistic equation with constant harvest rate, h, is dx/dt=rx((1-x/k)-h) I do not know how to apply

    asked by L.S. on December 14, 2011
  12. algebra

    The radius needed to create a sphere with a given volume V can be approximated by the equation r = 0.62(V)1/3. Find the radius of a sphere with a volume of 216 cubic meters. Round the answer to the nearest hundredth.

    asked by Anonymous on July 7, 2013
  13. Trig

    Find all solutions of the equation in the interval [0,2pi) 2 cos^2 x-cos x = 0 -2cos^2 + cosx + 0 (x+1/2) (x+0/2) (2x+1) (x+0) -1/2,0 2Pi/3, 4pi/3, pi/2, 3pi/2 my teacher circled pi/2 and 3pi/2 What did I do wrong? I don't understand...

    asked by Anonymous on April 10, 2017
  14. help...solving a polynomial....algebra

    solve this please....help me....12x(squared)+7x-10 Do you wish to factor this trinomial? If so, the factors are: (4x + 5)(3x - 2) You can use the FOIL method to check. If this is supposed to be an equation: 12x^2 + 7x - 10 = 0 ...then set each factor equal

    asked by Taylor on January 18, 2007
  15. Math

    The radius needed to create a sphere with a given volume V can be approximated by the equation r = 0.6(V)^1/3. Find the radius of a sphere with a volume of 729 cubic meters. Round the answer to the nearest hundredth.

    asked by Anonymous on March 27, 2010
  16. Math

    The profit (in millions of dollars) from the sale of x million units of Blue Glue is given by p= .7x-25.5. The cost is given by c= .9x +25.5 (a) Find the revenue equation. (b) What is the revenue from selling 10 million units? (c)What is the break-even

    asked by Brooke on April 9, 2013
  17. chem

    The full inoic equation for an electrochemical cell is Br2 + Zn yields 2Br- + Zn2+. write the half reaction that occurs at the anode and the half reaction that occurs at the cathode

    asked by Jessica on June 7, 2010
  18. math

    The profit (in millions of dollars) from the sale of x million units of Blue Glue is given by p= .7x-25.5. The cost is given by c= .9x +25.5 (a) Find the revenue equation. (b) What is the revenue from selling 10 million units? (c)What is the break-even

    asked by Brooke on April 9, 2013
  19. algebra

    IN 1988, the number of transmitters in the Intel 386 Sx was 275,000. It has doubled every 24 months since then. Write an equation that predicts the number of transmitters in a micro processer n years after 1988.

    asked by Felicia on October 30, 2008
  20. AP Chem

    Helium gas, He, at 22 degrees C and 1.00 atm occupied a vessel whose volume was 2.54 L. What volume would this gas occupy if it were cooled to liquid-nitrogen temperature (-197 degrees celcius). What is the equation?

    asked by Anna on November 9, 2008
  21. algebra

    Explain why the point-slope formula cannot be used to find the equation of a line that is parallel to the y-axis. When graphing the equations y =2x -2,y=2x.and y = 2x + 3, what observation can you make about the graphs. Can you make the same observation

    asked by Sissy needs help on February 15, 2012
  22. Chem II - Equilibrium

    6.75 g of SO2Cl2 was placed in a 2.00L flask. At 648 K 0.0345 moles of SO2 was present. Kc for the reaction SO2Cl2 SO2 + Cl2 is _____ 3.83 x 10 -2 4.71 x 10 -3 1.12 x 10 -2 6.12 x 10 -4 Ok, on this one, I think I am missing something. Don't I need Kc if I

    asked by Ken on June 17, 2008
  23. calculus

    (a) Modifying the parametric equations of a unit circle, find parametric equations for the ellipse: x^2/a^2 + y^2/b^2 = 1 (b) Eliminate the parameter to find a Cartesian equation of the curve x=2sint; y=4+cost; t >(or equal to) 0

    asked by Anna on August 8, 2011
  24. Algebra

    Mutiplying a Binomial by a Trinomial (FOIL) First, Outer, Inner, Last Method (3X+2)(X-1)(X+3) I have tried equation several times. The book says the answer is: 3X 3rd + 8X 2nd - 5X -6 I get: 12X 2nd - 6X + 3X 3rd -4 Not sure if i am doing it wrong or if

    asked by G on April 22, 2008
  25. Math

    Eliminate the parameter and write the corresponding rectangular equation whose graph represents the curve. x = sec Q y = cos Q x^2 + y^2 = 1/cos^2 + sin^2/cos^2 = x^2(1 +sin^2) = x^2(2-cos^2) x^2(2-1/x^2) = 2x^2 - 1 x^2 - y^2 = 1 My teacher said to use

    asked by Abbey on May 4, 2010
  26. Algebra

    Show work to change the linear equation below to slope-intercept form and then, list the slope and y intercept coordinate for the: (leave answers as an integer or a fraction in improper form). 20+3x-8y=0

    asked by Tariq Glaster on February 10, 2012
  27. chem

    . Antimony pentachloride decomposes according to the following equation. SbCl5 (g) → SbCl3 (g) + Cl2 (g) Suppose that 10.0 g of antimony pentachloride is placed in a 5.00 L container and allowed to establish equilibrium. Calculate the concentration of

    asked by anon on March 20, 2015
  28. Math

    Have been given a table of values and to complete it using the equation, y = x^2 - 3x + 10. (-1,14), (0,10), (1,8), (2,?), (3,10), (4,?) and (5,20). You draw a graph, using 2cm=1 unit on x-axis and 2cm=2 units on y-axis. Now my question is...how do you

    asked by Christopher on March 3, 2016
  29. Chemistry

    An ionic compound dissolved in water, separated into its ions according to the following equation: MA2 (s)--> M^+2 (aq) + 2A^- (aq). If the ground state electron configuration of the two ions are similar to those of neon. Ne, and of Kr, the two elements in

    asked by Lil on March 29, 2017
  30. math

    in february, rent increased from $875 to $915 per month. What is the percent of increase to the nearest percent? should we like subtract 875 from 915 which gives us 40. and the set the equation x% * 815 = 40 please help! i am stuck in this question!!!

    asked by Anonymous on February 10, 2009
  31. Math

    what you have learned about rational expressions and their applications, and then consider how you might apply rational expressions to your daily life. Explain this application, and discuss what the equation might be. Did the study of these types of

    asked by Jaan on September 11, 2007
  32. Chemistry

    Calculate the energy required to produce 5.00 mol of Cl2O7 on the bases of the following balanced equation. 2Cl2(g) +7O2(g) +130kcal - - > 2 Cl2O7 5.00 kcal 65 kcal*** 130 kcal 325 kcal

    asked by Ben on May 16, 2016
  33. Math

    The perimeter of a rectangle is 36ft. the length is 10ft. longer than the width find the dimensions. Write a system linear equation an solve the resulting system let x be the length and y be the width.

    asked by Denise on August 5, 2013
  34. Algebra

    How would you solve these types of problems? They confuse me! 1. Write the quation of the line that passes through points (-8,-6) and (5,3) 2. Write the equation of the line that passes through (3,-4) and has a slope of 2. I know that you have to do

    asked by Jill on October 28, 2008
  35. Math

    Trevor went to an amusement park where ride tickets cost $2.50 each. He plans to spend $15.00 on refreshments while at the park. He has a total of $65.00. Write an equation to find the number of ride tickets he can buy.

    asked by Brooke on March 25, 2015
  36. algebra

    How do you set this up as an equation? There is a total of 1600 cups and bowls. cups cost 1.90 and bowls cost 2.85. how many of each do you have if the bill was 3430.00. and that includes 105.00 saucer.

    asked by jack on September 10, 2009
  37. Chemistry

    Trying to wrap my head around this, thanks for the help: You have 8.63 moles of C2H6O2 in the following unbalanced equation: (I already balanced it, here is the balanced): C2H6O2 + 5 O2 → 4 CO2 + 6 H2O How many moles of water are produced in this

    asked by BHT on September 22, 2016
  38. Chemistry

    Heat is given off when hydrogen burns in air according to the equation: 2H2 + O2 ---> 2H2) What is responsible for the heat? I know the answer is froming hydrogen-oxygen bonds gives off energy, but why?

    asked by Jessica on January 17, 2014
  39. algebra 2

    You have $25 to park your car in a garage in the city. The garage charges $4 for the first hour and $3 for each additional hour. Write an equation & determine the possible number of hours you can park. Help Again!

    asked by Jonathan on August 24, 2014
  40. calc

    The slope of the tangent line to the parabola y=4x2–3x+5 at the point where x=–5 is:______ The equation of this tangent line can be written in the form y=mx+b where m is:_________ and where b is:______? The first to blanks are -43, but what is b?

    asked by Adam on April 22, 2010
  41. matg

    transform function f(x)=x^2 into a new function g(x) by shifting f(x)horizontally 9units to the rig t, reflecting the result across the x axis, and then shifting the result up 4 units. find the equation g(x)

    asked by jennifer on April 17, 2009
  42. chemistry

    Propane, C3H8, reacts with oxygen according to the following balance equation. If 44 grams of propane react completely with sufficient oxygen, how many grams of water are produced?

    asked by salende on June 5, 2016
  43. math

    Bacteria is growing in a petri dish. Initially, there were 15,000 bacteria in the dish. It triples every 8 hours. Write the equation to represents this growth after t hours.

    asked by Jordan on April 10, 2014
  44. calculus

    Can you give me a good website on the topic, slope fields and differential equations? I need to match six slope fields with the correct differential equation. 1. dy/dx=x-y 2. dy/dx=1+x 3. dy/dx=cosx 4. dy/dx=2x 5. dy/dx=x+y 6. dy/dx=y(2-y)

    asked by Anonymous on November 7, 2007
  45. geometry

    Write and solve an equation to answer the question. Round your answer to the nearest tenth of a percent, if necessary. 140 towns is what percent of 1940 towns

    asked by kim on December 2, 2011
  46. Trig

    On the same set of axes, sketch and label the graphs of the equations y = cos 2x and y = –2 sin x in the interval 0 ≤ x ≤ 2π. How many values of x in the interval 0 ≤ x ≤ 2π satisfy the equation –2 sin x – cos 2x = 3? A.1 B.2 C.3 D.4 E.0

    asked by Kiki on March 30, 2014
  47. Chemistry

    FeCl3(aq) + K2S(aq) Fe2S3(aq) + KCl(aq) Consider the unbalanced equation above. What is the maximum mass of Fe2S3 that can be produced when 54.5 mL of 0.480 M FeCl3 and 98.5 mL of 0.420 M K2S react?

    asked by Connor on October 7, 2013
  48. trig

    a plane is flying at an altitude of x with the distance at 800 meters with an angle of 70 degress. what equation would you use to solve. tan70= x/800 tan70= 800/x sin70= x/800

    asked by tom on January 26, 2011
  49. Inverse of log function

    Find the inverse of f(x) = log(2+x) - 4 the base is "a" Call f(x) y y = loga(2+x) -4 y+4 = loga(2+x) a^(y+4) = 2 + x x = a^(y+4) - 2 drwls, you have merely solved the equation for x. The question was to find the "inverse", so the actual answer should be y

    asked by Jen on March 1, 2007
  50. Algebra

    Write an equation of the line satisfying the given conditions. Parallel to the line y=-5x-6 and a y-intercept of -2. Would it be: y=-5x-2 The slope stays the same due to it being parallel and the only thing that changes is the y-intercept and that would be

    asked by Carrie on April 18, 2010
  51. Chemistry

    This is a stoichiometry equation. Cu(s) + 4(HNO3)(aq) -> Cu(NO3)2(aq) + 2(NO2)(g)+2(H2O)(l) If you use 6 moles of nitric acid 4(HNO3), how many moles of Copper (II) Nitrate Cu(No3)2 will be produced?

    asked by Bryce on February 14, 2016
  52. calculus

    c be the curve of the equation y=3x^5+10x^4-10x^3+60x^2+25x-5. among all points on the curve over the interval [-1,3], find the coordinates of the highest slope and lowest slope

    asked by ruth on October 11, 2010
  53. Math

    1)Write a quadratic equation with integer coefficients that has -4+7i(Radical 3) and -4-7i(Radical 3) as its roots. 2) Solve your answer to part 1 using the quadratic formula verifying your answer

    asked by Jason on December 11, 2008
  54. Maths (Vectors)

    I have two sets of coordinates: ax, by, cz ex, fy, gz (not using numbers to keep it more generic). I have a right-handed parametric basis of . I need to state a vector parametric equation for r(t) in this basis, using the coordinates I have in this plane.

    asked by Hannelore on June 1, 2017
  55. Algebra2

    Are these Correct? Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 1. Passes through (3, 2) and is parallel to 2x-y=4 = 4x+y 2. Passes through (-1, -1) and is perpendicular to y = 5/2x + 3 =6\7x-2

    asked by Victoria on November 29, 2012
  56. Chemistry Need Help

    Given the chemical equation, Cl2 + F2 2ClF, how many moles of ClF are produced in the reaction, if 1.50 moles Cl2 are made to react with 1.75 moles F2 ? I got the answer 3.50 moles but it was wrong. Can anyone help me please.

    asked by Matthew on February 27, 2015
  57. chemistry

    balance the following equations and write an equation for the mole to mole relationship and the mass relationship a. Na + H2O > NaOH + H2 b. HCl + KOH > KCl + H2O

    asked by shaggy on April 20, 2008
  58. science

    Ammonia, NH3, can be made by reacting nitrogen and hydrogen and the equation is N2 + 3H2 --> 2NH3 How many moles of NH3 can be made if 12 moles of H2 react with enough N2? mol

    asked by heather on August 24, 2017
  59. Algebra

    Can you pleas Solve the quadric equation step by step 4x square =13x+2 4x^2 = 13x + 2 subtract 13x and 2 from both sides 4x^2 - 13x - 2 = 0 Now use the quadratic formula, since it does not factor.

    asked by Tony on April 11, 2007
  60. Trigonometry

    Convert to polar coordinates with r greater than or equzl to 0 and theta between 0 degrees and 360 degrees Write the equation inpolar coordinates x squared + y squared = 2

    asked by Steve on May 30, 2008
  61. Chemistry

    Create a balanced equation for the reaction between sodium and bromine. Find how many grams of salt can be made from 5.00 grams of sodium and unlimited bromine. Is it about 39.8 g NaBr2?

    asked by Anonymous on February 14, 2016
  62. Math

    Erin bought 12 yards of landyard.She cut the lanyyard into 1/2 yard pieces. Write an equation that represents the number of pieces of landyard,n,that Erin has now.

    asked by Leany on April 23, 2016
  63. 11 U chemistry

    Predict the products of a reaction between solid beryllium chloride and solid potassium,write the products in a balanced chemical equation also indicate what type of reaction this is.

    asked by timothy on June 7, 2011
  64. math

    gracie read 150 pages of a book. the book is 227 pages long which equation shows the amount she still needs to read to finish a story

    asked by Anonymous on October 22, 2014
  65. Math

    Suppose dasha has 217 grams of sand in the bucket and 146 grams of shells. What is the mass of the sand and the shells? Write an equation to solve.

    asked by Esna on April 27, 2017
  66. chemistry

    Calculate the mean speed, using equation 1.13 and 1.17 of (a) He atoms and (b) CH4 molecules at (i) 79 K, (ii) 315K, and (iii) 1500K. Vrms= (2(Ek)/m)^1/2 Vrms= (3RT/M)^1/2 M(He)= 4.0*10^-3 kg/mol M(CH4)= 16.0*10^-3 kg/mol

    asked by help?!?!? on August 28, 2015
  67. Algebra 2

    -2/3x + 3

    asked by Daren on January 22, 2007
  68. find the polynomial

    degree 4 zeros i & (1+i) constant term 12 How do I start this problem. Thanks A degree four polynomial will have the form (x^4 +... x + c), where c is a constant. You will need to generate an equation that has the above form, using c=12. Solve for the

    asked by Jen on February 1, 2007
  69. math

    the total cost of manufacturing 100 cameras per week is 700 $ and 120 cameras per week is 800 $ ,the the cost equation ,assuming it to be linear is

    asked by anthy on November 1, 2011
  70. math

    There are 28 students in Ms. Rainbow's Math class. The number of girls is 10 less than the number of boys. If there are b boys in the class, write an equation to correctly model the situation.

    asked by Anonymous on November 5, 2011
  71. Algebra 1: 8th Grade

    Explain why the graph of an equation in the form y=kx always goes through the origin. Give an example of a graph that shows direct variation and one that does not show direct variation. I don't really get the question.

    asked by Joy on October 7, 2008
  72. Math

    I need help setting up the equation. I think I'm doing something wrong. Problem: a recipe needs 2 and 2/3 cups of flour to make two regular batches of cookies. Now I need to make multiple batches of cookies. This is what I have 2 and 2/3 over 24 = x over

    asked by Stacy on August 26, 2018
  73. Algebra

    The cost, in millions, to remove x% of pollution in a pond is modeled by the equation: . What is the cost to remove 75% of the pollution? Hint: Plug in and calculate, do not convert to a decimal.

    asked by Chelsea on December 13, 2011
  74. Math

    Jackie mows a strip of uniform width around her 25 m by 15 m rectangular lawn and leaves a patch of lawn that is 60 percent of the original equation. what is the width of the strip

    asked by Kestrel on October 23, 2011
  75. chemistry

    write a net ionic equation for the following: Copper (II) sulfate reacts with Ammonium hydroxide to produce Copper (II) oxide, Ammonium sulfate, and water.

    asked by rachel on October 26, 2010
  76. Advanced Math

    Write the standard form of the equation of a circle that passes through the points at (0,8) (8,0) and (16,8). Then identify the center and radius of the circle. (x-8)^2 + (y-8)^2 = 64 (x^2 / 64) + (y^2 / 64) = 64 center=(8,8) radius=8 I got it wrong don't

    asked by Anonymous on April 16, 2009
  77. chemistry

    What is the concentration of IO3- (total volume: 20mL) when you have .00001mol of HSO3- (total volume: 10mL)? Use the balanced equation IO3-(aq)+3HSO3-(aq)>>>I-(aq)+3SO4^2-(aq)+3H+(aq)

    asked by jessica on May 1, 2016
  78. math

    Sam bought a new car for $26,500. The car depreciates approximately 13% of its value each year. a) What is the decay factor for the value of this car? b) Write an equation to model the decay value of this car?

    asked by mary on August 2, 2015
  79. algebra

    suppose a ball is thrown upward from a height of 4.5 feet with an initial velocity of 21 feet per second. write an equation relating the time t and height h of the ball

    asked by sam on January 26, 2014
  80. math

    Judie weighed 7 3/8 pounds when she was born .By the age of 6 she was 5 times as heavy . if A stands for pounds Write the equation you would use to find Judie weight at age 6

    asked by anny on March 24, 2014
  81. Advance Math

    Find solutions of the equation in the interval [0, 2pie} Cos(x+pie/3)+Cos(x-pie/3)=1 I need to show work without calculator and be able to check in order for it to work Thanks for help

    asked by Mike on May 24, 2010
  82. Math

    A phone company uses the equation y=0.15x+10 to find y, the monthly charges for a customer sending x text messages. How many text messages are sent if the monthly charge is $77.50?

    asked by Amy on December 5, 2016
  83. Chemistry

    Modified Arrhenius theory question? using the modified Arrhenius theory, write a chemical reaction equation to explain the acidity of glycolic acid.

    asked by Sam on November 11, 2009
  84. math

    I was given the equation (y-2)^2 - x^2 =1 and asked to locate the center, vertices,and asymptotes. ifound the center to be (0,2) and the verticies are(0,1)and (0,3). but I'm not sure how to find the asymptotes. Could you please help me find them and

    asked by Tye on March 16, 2010
  85. Algebra 1

    The monthly cost C for a cell phone is $20 each month plus $.10 for each minutes used. Which equation can be used to find the total cost (in dollars) for a month when m minutes are used? A. C= m+20 B. C= 0.1m+20 C. C= 10m+20 D. C=20m

    asked by Anonymous on September 18, 2014
  86. Algebra

    Find three ordered pairs (a,b) that satisfy the equation 3a - 5b = 9. So far, I got (3,0). I'm having trouble finding others. Does anyone have suggestions on other easy ways to find ordered pairs besides guess-and-check? Thank you!

    asked by Cassie on February 27, 2009
  87. algebra

    sally's print shop will print any image on a frisbee for a cost of $1.50 per frisbee and a one-time charge of $7. write an algebraic equation using c for cost and f for frisbees.

    asked by lakeeta on January 21, 2008
  88. Calculus

    Find the area in the first quadrant bounded by the arc of the circle described by the polar equation r = (2 sin theta)+(4 cos theta) A. 5pi/2 B. (5pi/2)+4 C. 5pi D. 5pi + 8

    asked by Tracy on November 21, 2011
  89. Math

    The density of ocean water at the surface is 1025 kg per meter cubed. Write an equation to calculate the mass of 12 meters cubed of ocean water

    asked by Frankie on October 6, 2014
  90. chemistry

    Show a balanced equation for a diprotic acid reacting with a tribasic base. I have an example of a diprotic acid as H2SO4 and a triprotic base as H3PO4. can i use those? if so please help balance.

    asked by jamieson on November 19, 2009
  91. math

    Paul needs 2 1/4 yards of fabric to make a tablecloth. How many tablecloths can he make from 18 1/2 yards of fabric. Define the variable write the equation solve and label.

    asked by obama on November 7, 2010
  92. Algebra

    Restated:For each equation, determine whether its graph is symmetric with respect to the -axis, the -axis, and the origin. 4y^4+24x^2=28 and y=1/(x^2+5) Check all symmetries that apply x-axis,y-axis,origin or non of the above.

    asked by Jena on February 4, 2011
  93. gse 122

    (1) y varies partly as D an partly as the cube root of D.when Y=6, D=27 an when Y=11,D=1/8.find Y when D=3. Correct to 2 decimal point. (2) using completing the square method find the root of the equation 8x+6x-5=0

    asked by kakjing pirbut moses on October 25, 2016
  94. Math

    Malcolm is downloading a file that is 50.4 mb. His Internet connection had a download speed of 1.2 mb per seconds. Write an equation to find it the time in seconds it will take to download the file

    asked by Amy on March 23, 2015
  95. college algebra

    On the graph, plot all relevant points for y=x^2-4x+3. Then give the equation for a graph that shifts up 2 units and to the left 3 units. If it is a function, give its domain and range. Thank you!!

    asked by jenny on October 23, 2008
  96. org. chem

    Draw the acetal obtanined from 1-propanol and benzaldehyde Draw the ketal obtained from 2-propanol and 3-methylcyclpentanone Can someone tell me where the actal/ketal comes from or do I just add it to the equation. Not sure how to start this. Thanks :)

    asked by meghan on February 11, 2013
  97. algebra

    Kim spent a total of $100 for a laptop and 4 blank cds. The cost of the laptop was $92. Write and solve an equation to find, c, the cost of each blank CD

    asked by Anonymous on October 22, 2012
  98. Math

    The variables x and y are related by the equation y=ax/(x-b),where a and b are constants .When y is plotted against y/x ,a straight line is obtained .The line has gradient 3 and y-intercept 2. (i)Find the values of a and b (ii)Find the values of x which

    asked by Claudia on August 8, 2013
  99. chemistry

    Lead ii nitrate was added to a small test tube as well as Sodium hydroxide. What is the equilibrium equation for the reaction of lead ii ions and hydroxide ions?

    asked by Keli on March 31, 2011
  100. Algebra 2

    Part A: For what real values of c is x^2 + 16x + c the square of a binomial? If you find more than one, then list your values separated by commas. Part B: For what real values of a is x^2 + ax + 25 the square of a binomial? If you find more than one, then

    asked by Aria on October 7, 2017

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