Jeconiah
Popular questions and responses by Jeconiah
Maths
Bill and Steve decide to spend the afternoon at an amusement park enjoying their favorite activities, the water slide and the gigantic Ferris wheels. Their tickets are stamped each time they slide or ride. At the end of the afternoon they have the
asked on March 25, 2013 
Maths
Margie is responsible for buying a week's supply of food and medication for the dogs and cats at a local shelter. The food and medication for each dog costs twice as much as those supplies for a cat. She needs to feed 164 cats and 24 dogs. Her budget is
asked on March 25, 2013 
Advance mathematics
Find the roots of x3x210x8=0
asked on June 6, 2012 
Chemistry
Calulate the volume of carbon dioxide produced when 0.5 tonnes of iron are produce.When iron oxide is heated with carbon monoxide, pure iron and carbon dioxide are formed.
asked on June 5, 2012 
Physics
A model helicopter of mass 5kg rises vertically from rest to a height of 60m with a constant acceleration in 10 seconds. Calculate the total thrust with which the helicopter rises.
asked on August 29, 2012 
Chemistry.
Calculate the volume of carbon dioxide produced when 0.5 tonnes of iron are produced. When iron oxide is heated with carbon monoxide, pure iron and carbon dioide are formed. Answer: 500000g/112g/mol =?/3 = 13392.9L
asked on June 7, 2012 
Math
An aeroplane needs to fly due east from city A to city B at a speed of 400km/hr. However a 50km/hr wind blows constantly from the north. In what direction must aeroplane head and at what speed must it travel?
asked on August 27, 2012 
Chemistrystoichiometry ...help!
Calculate the volume of carbon dioxide produced when 0.5 tonnes of iron are produced. When iron oxide is heated with carbon monoxide, pure iron and carbon dioxide are formed. Ans: 500000g/112g/mol= 13392.9L
asked on June 7, 2012 
Please help! Chemistry
In a fume cupboard molten lead(ii) bromide is electrolysed using graphite electrodes. Write halfequations for the reaction at the (i).cathode (ii). Anode (iii). Overall equation (states required).
asked on August 25, 2012 
Mathematicsplease help!
A piece of wire 168cm. long is to be cut into two pieces, each to be bent to make a square. The lenght of a side of one square is to be 2cm. greater than the lenght of aside of the other. What is the area of the smaller square? Ans= 80
asked on June 9, 2012 
Chemistrystoichiometry ...help!
Calculate the volume of carbon dioxide produced when 0.5 tonnes of iron are produced. When iron oxide is heated with carbon monoxide, pure iron and carbon dioxide are formed. Ans: 500000g/112g/mol= 13392.9L
asked on June 7, 2012 
Maths
Solve for x: log5(x2)+ log5 (x4) = log6(x1)
asked on March 25, 2013 
Please help! Chemistry
In a fume cupboard molten lead(ii) bromide is electrolysed using graphite electrodes. Write halfequations for the reaction at the (i).cathode (ii). Anode (iii). Overall equation (states required).
asked on August 25, 2012 
Maths
Solve for X: log4(3x7)^2 = 10
asked on March 26, 2013 
Chemistry
An aqueus solution of sodium mitrate(NaNO3) contains 0.85 grams of sodium nitrate and its concentration is 0.1mol L^1. What is the volume. in millilitres, of the sodium nitrate solution?
asked on August 25, 2012 
Chemistry
Calculate the mass of lithium hydroxide that must be added to 50ml of water so that it may react exactly with 5ml solution of 1.5M nitric acid.
asked on June 6, 2012 
Math
what is the longest river in the world?
asked on April 20, 2013 
Math
log(x2) +log8 (x4) =log6 (x1)
asked on March 26, 2013 
Algebra please help me!
4a^2+9b^2+25c^212ab+20ac30bc divided by 2a3b+5c.
asked on February 26, 2013 
Algebra
simplify: [(2x^2+5x6)/(5x^2+7x6)]*[(20x^27x3)/(6x^225x+4)]/[(4x^211x3)/(6x^219x+3)]
asked on February 19, 2013 
Please help quick! Maths
Solve this pair of equations by the graphical method: 4x+y=9 , 3y2y=49
asked on August 26, 2012 
Chemistry
2.8g of iron(¡¡) reacted with 100ml of 2M sulfuric acid. A.Which reactant is in exces? B. What volume of hydrogen gas is produce at RTP? C. How many moles of iron sulfate is produced? D. How many atoms of hydrogen gas were evolved?
asked on June 6, 2012 
Math
Find the exact value of sin 2teta=2 sin teta cos teta given that cos teta =2/3, 0
asked on September 4, 2012 
Physics
Two forces of 4 N and 6 N act at a point along the same horizontal line. What is its resultant force?
asked on August 29, 2012 
Mathematicsplease help!
Solve for x: 9/28 + 3/x+2 = 3/4.
asked on June 9, 2012 
Chemistry
2.8g of iron(¡¡) reacted with 100ml of 2M sulfuric acid. A.Which reactant is in exces? B. What volume of hydrogen gas is produce at RTP? C. How many moles of iron sulfate is produced? D. How many atoms of hydrogen gas were evolved?
asked on June 6, 2012 
Chemistry
When sulfuric acid reacts with ammonia solution an ammonium salt and water are produced. Calculate the volume of 3mol/dm3 of acid required to react exactly with 25ml of a 2.5mol/dm3 of ammonia solution.
asked on June 5, 2012 
Visual Basic Programming...Very Urgently!!!
Please Can someone help in proving the code about transactiopn program of images. it must have a two diffetrent form that will perform simultaneously which menas that first form will have login password to log in to use the transaction. Please your help is
asked on April 16, 2013 
Maths
Slove for x: ln (x^2 6x 16) = 5
asked on March 26, 2013 
Please help quick! Maths
Solve this pair of equations by the graphical method: 4x+y=9 , 3y2y=49
asked on August 26, 2012 
Please Help!!!! Maths
How long will it take for a $3000 savings account to double its value at a simple interest rate of 10%?
asked on April 3, 2013 
Maths
Solve for x: 6log(x^2 +1)  x = 0
asked on March 26, 2013 
Maths A
Sketch the graph of y=x^2x and find the minimum value of y.
asked on August 27, 2012 
Please help quick! Maths
Use substitution method to solve x2y5=0, 3x5y=8
asked on August 26, 2012 
Mathematicsplease help!
If cos x >0 ans sin x= 4/5, then tan x=?
asked on June 9, 2012 
Chemistry
Calculate the mass of ammonia salt that would remain if the solution were evaporated to dryness. When sulfuric acid reacts with ammonia solution an ammonium salt is produced. 2.5M * 0.025L/2=x/132 =4.125g
asked on June 6, 2012 
Chemistry
Calculate the mass of lithium hydroxide that must be added to 50ml of water so that it may react exactly with 5ml solution of 1.5M nitric acid.
asked on June 6, 2012 
Chemistry
Calculate the mass of ammonia salt that would remain if the solution were evaporated to dryness. When sulfuric acid reacts with ammonia solution an ammonium salt is produced.
asked on June 6, 2012 
Chemistry
Calculate the mass of lithium hydroxide that must be added to 50ml of water so that it may react exactly with 5ml solution of 1.5M nitric acid.
asked on June 5, 2012 
Problem Solving! please I need more help!!
How long will take for a $3000 savings account to double its value at simple interest rate of 10%?
asked on April 7, 2013 
Algebra
Find the quotient and remainder when: (x+1)+(x1) divided by [1(x+1)(x1)]
asked on February 25, 2013 
Algebra
Find the quotients and remainder when: 4a^2 + 9b^2 + 25c^2  12ab + 20ac  30bc divided by 2a  3b + 5c
asked on February 25, 2013 
Algebra
(3a^2+6aba2b)/(9a^26a+1)
asked on February 19, 2013 
Please help!! Chemistry
Ethanol is produced by the action of yeast (catalyst) on sugar cane juice. (1).What is specific name of this reaction? (2.) Write a simple word equation of this reaction.
asked on August 25, 2012 
Please help quick!! Mathematics A
Solve for x: 9^x3^x8=0
asked on August 7, 2012 
Please help quick!! Mathematics A
Solve for x: 9^x3^x8=0
asked on August 7, 2012 
Mathematicsplease help!
The first term of the sequence is 168 and every term after the first is 8 more than term immediately proceeding it. Find the 88th term.
asked on June 9, 2012 
Please Ms Sue Help me! Alhorithm
Solve for the value of x: 6log(x^2+1)x=0. I can't even solve it.
asked on April 13, 2013 
Maths
Show proof of deriving the Quadratic Formula from the Quadratic Equation ax^2 + bx + c = )
asked on April 1, 2013 
Narrative story
Please help me to write a short narrative story based on nontraditional hero.
asked on March 9, 2013 
Algebra
please help me solve these question, simlify: (x^4y^4)/(x^3y^3)
asked on February 19, 2013 
Physics
Define linear momentum.
asked on August 29, 2012 
Maths A
Write down the period of the function y=cos x
asked on August 27, 2012 
Maths A
When 3square root of 5= square root of a, find the value of a.
asked on August 27, 2012 
Maths
Solve this using elimination method: 4x3y=4
asked on August 25, 2012 
Please help!! Chemistry
Ethanol is produced by the action of yeast (catalyst) on sugar cane juice. (1).What is specific name of this reaction? (2.) Write a simple word equation of this reaction.
asked on August 25, 2012 
computer science
What exactly do computer scientists do?
asked on August 11, 2012 
Mathematicsplease help!
The first term of the sequence is 168 and every term after the first is 8 more than term immediately proceeding it. Find the 88th term.
asked on June 9, 2012 
Chemistry
Calculate the mass of ammonia salt that would remain if the solution were evaporated to dryness. When sulfuric acid reacts with ammonia solution an ammonium salt is produced.
asked on June 6, 2012 
Chemistry
2.8g of iron (¡¡) reacted with 100ml of 2M sulfuric acid. Which reactant is in excess? And what volume of hydrogen gas is produced at RTP?
asked on June 5, 2012 
Please help me solve it. Math
solve for the value of x: 6log (x^2+1)x=0. please help me because I do not have any idea in this topic.
asked on April 8, 2013 
Inequalities.please a needy help here!!
solve and graph y>2x1
asked on April 6, 2013 
Maths
Simplify the following: (54^1/4)/ (6^3/4)(12^1/2)
asked on March 26, 2013 
Algebre
simplify: {[3x^2+10x8]/[5x15]}/{[x^3+64]/[x^29]}
asked on February 19, 2013 
Chemistry
When secondary alcohol oxidized it produces alkanes. Draw the structure of 2,2 dimethyl 3butanol + oxygen and give the names for it.
asked on September 4, 2012 
Math
The displacement of a particle is given by: x=t^37/2t^2+2t1. Find the particles initial displacement. And find when the particle is at rest.
asked on August 27, 2012 
Maths A
Find the coordinates of the vertex of the parabola:y=x^28x+2
asked on August 27, 2012 
Please help. Chemistry
What is the MAIN reason for storing sodium metal in mineral oils?
asked on August 25, 2012 
Please help!! English
Formulate the acronym for "READING THROUGH PARTNERSHIP"
asked on August 11, 2012 
Mathematicsplease help!
If cos x >0 ans sin x= 4/5, then tan x=?
asked on June 9, 2012 
Chemistry. Please help quick!!!
Is this chemical formula (Fe2O3) iron oxide?
asked on June 7, 2012 
Chemistry.
Is this formula (Fe2O3) iron oxide?
asked on June 7, 2012 
Chemistry
28g
asked on June 6, 2012 
Please Help!!!! Maths
Over a threeyear period, the total interest paid on a $4500 loan was $1620. What was the interest rate?
asked on April 3, 2013 
Please Help!!!! Maths
In order to earn $1,000 in interest over 2 years at an annual rate of 4%, how much principal must be put into a saving account?
asked on April 3, 2013 
Maths
Show proof of deriving the Quadratic Formula from the Quadratic Equation ax^2 + bx + c = O
asked on April 1, 2013 
Maths
Find the vakue of x: (1)logx2 = 2 (2) log3x^2 = 1
asked on March 26, 2013 
Please help quick. Algebra
solve: 2x^23x+5 divided by 2x1
asked on February 26, 2013 
Algebra
solve 2x^25x1 divided by x3
asked on February 25, 2013 
Algebra, please help quick
simlify the following to the lowest terms: (a) [x^2y^2]/[x^2+y^2] (b) [3a^2+6aba2b]/[9a^26a+1] (c) [x^4y^4]/[x^3y^3] (d) [36x^3y^4z]/[64x^5y^2z^3]
asked on February 19, 2013 
Math
Find the exact value of the product sec teta csc teta given that sin teta=3/5 and cos teta =4/5
asked on September 4, 2012 
Please help quick! Math
The sum of three times a first number n twice second number is 8. If the second number is subtravted from twice the first number, the result is 3, find the numbers.
asked on August 30, 2012 
Maths A
A cylindrical can is open at both ends. It is of height 14 cm and radius 4.2 cm. Find the external surface area of the can.
asked on August 27, 2012 
Maths A
When 3square root of 5= square root of a, find the value of a.
asked on August 27, 2012 
Chemistryplease help!
What is the chemical formula for alluminium hydroxide?
asked on June 21, 2012 
Chemistryplease help!
What is the chemical formula for alluminium hydroxide?
asked on June 21, 2012 
Mathematicsplease help!
Solve for x: 9/28 + 3/x+2 = 3/4.
asked on June 9, 2012 
Mathematicsplease help!
The vertices of a triangle are (2,3),(2,1) and (2,7). What is the area of this triangle?
asked on June 9, 2012 
Please help me...Please....Math
Find the coordinates by solving and graphing the equation : x^2x+30=0
asked on April 10, 2013 
Polynomials
solve (2x)/(x^2 + 2)
asked on March 6, 2013 
Polynomials..quick help....
if (x7) and (x4) are the factors of px^3 + qx^2  5x +84, find the values of p and q.
asked on February 28, 2013 
Please help quick
simplify: (x^2y^2)/(x^2+y^2)
asked on February 19, 2013 
Algebra
simpliy the following: (a) {[4x^249]/[8x^3+27]} *{ [4x^2+12x+9]/[2x^213x+21]} (b) {[x^2+x6]/[x^2+7x6]}*{[20x^27x3]/[6x^225x+4]}*{[4x^211x3]/[6x^219x+3]}
asked on February 19, 2013 
please help quick! Calculus
solve 6x2x^3 with first principal
asked on February 10, 2013 
social science
what is deepest lake in the world?
asked on February 5, 2013 
Math
Let p(x)=x^3+4x^2+x6. Find a polynomial g(x) can be (remainder) r, such that p(x) can be expressed in the form p(x)=(x2)g(x)+r
asked on September 4, 2012 
Physicsplease help quick!!
When the object is placed beyond 2f, where should you put your eyes for getting the clear image of it?
asked on June 10, 2012 
Quick help! Algebra
simplify: (9x^216/x+1)/(4x3)
asked on February 19, 2013

Chemistry
2.416g
posted on June 6, 2012 
Chemistry
21.4g
posted on June 6, 2012