Leroy
Most popular questions and responses by Leroy
chemistry
What do you get when you mix nickel sulfate and sodium carbonate?
asked on March 5, 2009 
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 
Chem
In the reaction NH4Cl = NH3 + HCl, the equilibrium concentrations were found to be [NH3] = [HCl]=3.71 * 103M Calculate the value of the equilibrium constant?
asked on November 7, 2014 
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 
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 
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 
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 
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 
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 
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 
Chemistry
The ionproduct 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 
PhysicsCheck
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 
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 
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 
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 
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 
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 
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 
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 
Chemistry
Calculate the molar H3O and ClO3 concentrations of a .28 M solution of perchloric acid (HClO3)?
asked on November 19, 2014 
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 xaxis. Write a formula for the resulting function, y2. y2 = ? i tried x^34. my value wasn't correct
asked on October 10, 2014 
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 
math
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asked on June 14, 2011 
Algebra
Please help me with this problem: A basketball team scored 50 times in their previous game. The team earned points from making twopoint field goals (baskets) and one point free throws. If the team scored 87 points in their last game,how many twopoint
asked on December 15, 2016 
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 
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 
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 
Chemistry
original question on 11/19 @ 2:26 am current question page 4, close to the bottom.
asked on November 20, 2014 
Chemistry
Can you check my answer for the PH question @12:04 11/20?
asked on November 20, 2014 
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 
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 
thesis
What is the main idea Johanathan Edward's speech Sinners in the hands of an angry god?
asked on April 3, 2006

college algebra
help
posted on June 13, 2018 
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 
physics
jenkins
posted on December 18, 2016 
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 
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 
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 
math
thank you, i think i got it now.
posted on May 21, 2011 
Math
Can you tell me how you got that
posted on April 16, 2009 
PhysicsCheck
Nevermind... v2u2=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