Leroy

Most popular questions and responses by Leroy
  1. chemistry

    What do you get when you mix nickel sulfate and sodium carbonate?

    asked on March 5, 2009
  2. Algebra - PLEASE HELP!

    Can you PLEASE help me with this problem? I do not understand... The area of a triangle can be found by using the formula A=1/2bh. The area of the triangle can be represented by the expression -17.5x2^ - 138.5x - 27. The triangle's base length is greater

    asked on February 20, 2017
  3. Chem

    In the reaction NH4Cl = NH3 + HCl, the equilibrium concentrations were found to be [NH3] = [HCl]=3.71 * 10-3M Calculate the value of the equilibrium constant?

    asked on November 7, 2014
  4. Algebra

    Can you please review to see if I am on the right track with this problem: The length of a rectangle is 2 centimeters less than two times the width of the rectangle. If the perimeter of the rectangle is 98 centimeters, what is the length of the rectangle?

    asked on December 11, 2016
  5. Physics

    Two identical teflon rods are 10 centimeters long and rubbed with fur so that they each have a total negative charge of 20 microCoulombs that is uniformly distributed along their length. They are arranged along the same axis, with their ends 5 centimeters

    asked on January 23, 2014
  6. physics

    A planet orbits a star, in a year of length 4.46 x 107 s, in a nearly circular orbit of radius 3.17 x 1011 m. With respect to the star, determine (a) the angular speed of the planet, (b) the tangential speed of the planet, and (c) the magnitude and

    asked on July 16, 2013
  7. Chemistry

    What is the PH of an aqueous solution consisting of 0.070 M formic acid (HCOOH) and 0.070 M sodium formate (HCOONa)?

    asked on November 19, 2014
  8. Algebra

    Can you please help on this Algebra problem? Keana's piggy bank contains $4.30 in nickels and dimes only. If she has 59 coins in her ban, then what is the sum of the digits in the number of nickels in Keana's bank? Write a system of equations for this

    asked on December 10, 2016
  9. exercise physiology

    calculate the total amount of work performed in 5 minutes of exercise on the cycle ergometer given the following flywheel 25n cranking speed 60rpm distance travel 6meters

    asked on June 30, 2014
  10. Physics

    A player kicks the football from the ground with a velocity of of 30m/s at 45 degree angle. Find the initial vertical velocity?

    asked on March 13, 2012
  11. Chemistry

    The ion-product of pure water, Kw, is 2.51 * 10(-14) at the body temp of 37 degrees Celcius. What are the molar H2O and OH concentrations in the pure water temperature?

    asked on November 19, 2014
  12. Physics-Check

    A missile launches at a velocity of 30.0 m/s at an angle of 30.0* to the normal. What is the maximum height the missile attains? (((30)*cos(30))^2)/(2*9.8) )

    asked on April 10, 2009
  13. math

    The area of some shape varies directly with the square of its side. If a shape with 2cm sides has an area 10cm^2,what would be the area of a shape ofthe same type with side of 3cm.

    asked on May 21, 2011
  14. Algebra

    Thank you...I forgot to add the other part of the question.. The sum of two number equal 25 The second number is 4 times larger than the first number. Write the two equations AND what are the two numbers. I have x+4x =25 but not sure what the two equations

    asked on December 4, 2016
  15. science

    compare the elements in an early protostar and those in a young star formed from star dust of older stars?

    asked on August 13, 2010
  16. Math

    The amount of money that a sales person makes varies directly as the total amount of sales made. if the sales person receives $7,500 for selling a house for $120,000, how much will he or she make if he or she sells a house for $150,000?

    asked on April 16, 2009
  17. 9th grade

    Erin's age is 3 times Warren's. In 4 years she will be twice as old as he will be. How old is each now?

    asked on April 16, 2009
  18. Physics

    Double check this for me: A player kicks a football with an initial velocity of 3.00 m/s at an angle of 60.0* above the horizontal. What is the horizontal distance traveled by the football? s = vi*t + (1/2)(a)(t2) 0 = 3sin(30)t + 0.5(-9.8)(t2) t = 0.306

    asked on April 10, 2009
  19. Algebra

    Please help me with this Algebra problem: The length of a rectangle is 91 less than six times the width of the rectangle. If the perimeter of the rectangle is 84 centimeters, what is the length of the rectangle? Write a system of equations for this

    asked on December 10, 2016
  20. Chemistry

    Calculate the molar H3O and ClO3 concentrations of a .28 M solution of perchloric acid (HClO3)?

    asked on November 19, 2014
  21. Math

    f(x) = x^3 y1 = -x^3 + 4 b) Graph the function obtained from f by first translating up 4 units, then reflecting about the x-axis. Write a formula for the resulting function, y2. y2 = ? i tried x^3-4. my value wasn't correct

    asked on October 10, 2014
  22. geometry

    Ryan’s teacher asked him to graph circle E with equation (x – 5)2 + y2 = 25. Below is the graph he submitted. Circle E that contains points 30, 0; 5, negative 25; negative 20, 0; 5, 25. What, if anything, did Ryan do wrong when graphing this equation?

    asked on July 20, 2013
  23. math

    (p¡æq)¡ê~r

    asked on June 14, 2011
  24. Algebra

    Please help me with this problem: A basketball team scored 50 times in their previous game. The team earned points from making two-point field goals (baskets) and one point free throws. If the team scored 87 points in their last game,how many two-point

    asked on December 15, 2016
  25. Algebra

    Can you please help with this problem: At Super Saver Mart (SSM), you can buy three packs of toilet paper and seven boxes of cereal for $46.00. You can also purchase 8 packs of toilet paper and 4 boxes of cereal for $75.00 at SSM. What is $14 more than the

    asked on December 10, 2016
  26. Algebra

    okay...I just figured out the two numbers...but not the two equations: x+4x = 25 5x = 25 x=5...so two numbers are 5 and 20 thanks for your help

    asked on December 4, 2016
  27. Algebra

    The sum of two numbers equal 25. The second number is 4 times larger than the first number. What are the two numbers

    asked on December 4, 2016
  28. Chemistry

    original question on 11/19 @ 2:26 am current question page 4, close to the bottom.

    asked on November 20, 2014
  29. Chemistry

    Can you check my answer for the PH question @12:04 11/20?

    asked on November 20, 2014
  30. Chemistry

    can you look at the additional attached questions from me this morning at 2:29am? not fully understanding them. thanks for your help

    asked on November 19, 2014
  31. Physics

    Which force acts opposite of the direction of displacement of the object? I think it would be friction...but could it be spring?

    asked on April 10, 2009
  32. thesis

    What is the main idea Johanathan Edward's speech Sinners in the hands of an angry god?

    asked on April 3, 2006
  1. college algebra

    help

    posted on June 13, 2018
  2. LA/READING(:

    1.C 2.C 3.A 4.B 5.A 6.Essay 7.D 8.B 9.D 10.B 11.C 12.D 13.D 14.C 15.B 16.A 17.C 18.B 19.B For checking your answers.(: those are 100% correct and I hope it brings your grade up. I’m glad to help you kids that parents scream at you if you don’t get an A

    posted on March 15, 2018
  3. physics

    jenkins

    posted on December 18, 2016
  4. Chemistry

    pKa = 7.6 for HCOOH so pH= 7.6 + log [.07]/[.07} pH = 7.6 is this correct or at least moving in the right direction?

    posted on November 20, 2014
  5. Chemistry

    I am not understand how to use log on my calculate, so no answer is calculating. can you explain how to use log?

    posted on November 19, 2014
  6. Chemistry

    I am not really sure how the find the pKa. Do I need to find the conjugate acid -base pair first?

    posted on November 19, 2014
  7. math

    thank you, i think i got it now.

    posted on May 21, 2011
  8. Math

    Can you tell me how you got that

    posted on April 16, 2009
  9. Physics-Check

    Nevermind... v2-u2=2as Here a = -9.8 m/s 2 Putting in the values 0 - 225 = 2*(-9.8)*S S = 11.5 m That's it right>

    posted on April 10, 2009