Friday

September 30, 2016
Total # Posts: 101

**Math**

what is the longest river in the world?

*April 20, 2013*

**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 muchly appreciated.

*April 16, 2013*

**Please Ms Sue Help me! Alhorithm**

Solve for the value of x: 6log(x^2+1)-x=0. I can't even solve it.

*April 13, 2013*

**Please help me...Please....Math**

Find the coordinates by solving and graphing the equation : -x^2-x+30=0

*April 10, 2013*

**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.

*April 8, 2013*

**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%?

*April 7, 2013*

**Inequalities.please a needy help here!!**

solve and graph y>2x-1

*April 6, 2013*

**Please Help!!!! Maths**

How long will it take for a $3000 savings account to double its value at a simple interest rate of 10%?

*April 3, 2013*

**Please Help!!!! Maths**

Over a three-year period, the total interest paid on a $4500 loan was $1620. What was the interest rate?

*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?

*April 3, 2013*

**Maths**

Show proof of deriving the Quadratic Formula from the Quadratic Equation ax^2 + bx + c = O

*April 1, 2013*

**Maths**

Show proof of deriving the Quadratic Formula from the Quadratic Equation ax^2 + bx + c = )

*April 1, 2013*

**Maths**

Find the vakue of x: (1)logx2 = 2 (2) log3x^2 = -1

*March 26, 2013*

**Maths**

Simplify the following: (54^1/4)/ (6^3/4)(12^-1/2)

*March 26, 2013*

**Math**

log(x-2) +log8 (x-4) =log6 (x-1)

*March 26, 2013*

**Maths**

Slove for x: ln (x^2 -6x -16) = 5

*March 26, 2013*

**Maths**

Solve for x: 6log(x^2 +1) - x = 0

*March 26, 2013*

**Maths**

Solve for X: log4(3x-7)^2 = 10

*March 26, 2013*

**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 following tickets: (Bill'...

*March 25, 2013*

**Maths**

Solve for x: log5(x-2)+ log5 (x-4) = log6(x-1)

*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 K4,240. How much ...

*March 25, 2013*

**Narrative story**

Please help me to write a short narrative story based on non-traditional hero.

*March 9, 2013*

**Polynomials**

solve (2x)/(-x^2 + 2)

*March 6, 2013*

**Polynomials..quick help....**

if (x-7) and (x-4) are the factors of px^3 + qx^2 - 5x +84, find the values of p and q.

*February 28, 2013*

**Algebra- please help me!**

4a^2+9b^2+25c^2-12ab+20ac-30bc divided by 2a-3b+5c.

*February 26, 2013*

**Please help quick. Algebra**

solve: 2x^2-3x+5 divided by 2x-1

*February 26, 2013*

**Algebra**

Find the quotient and remainder when: (x+1)+(x-1) divided by [1-(x+1)(x-1)]

*February 25, 2013*

**Algebra**

solve 2x^2-5x-1 divided by x-3

*February 25, 2013*

**Algebra**

Find the quotients and remainder when: 4a^2 + 9b^2 + 25c^2 - 12ab + 20ac - 30bc divided by 2a - 3b + 5c

*February 25, 2013*

**Please help quick**

simplify: (x^2-y^2)/(x^2+y^2)

*February 19, 2013*

**Quick help! Algebra**

simplify: (9x^2-16/x+1)/(4x-3)

*February 19, 2013*

**Algebra**

simplify: [(2x^2+5x-6)/(5x^2+7x-6)]*[(20x^2-7x-3)/(6x^2-25x+4)]/[(4x^2-11x-3)/(6x^2-19x+3)]

*February 19, 2013*

**Algebra**

(3a^2+6ab-a-2b)/(9a^2-6a+1)

*February 19, 2013*

**Algebra**

please help me solve these question, simlify: (x^4-y^4)/(x^3-y^3)

*February 19, 2013*

**Algebre**

simplify: {[3x^2+10x-8]/[5x-15]}/{[x^3+64]/[x^2-9]}

*February 19, 2013*

**Algebra**

simpliy the following: (a) {[4x^2-49]/[8x^3+27]} *{ [4x^2+12x+9]/[2x^2-13x+21]} (b) {[x^2+x-6]/[x^2+7x-6]}*{[20x^2-7x-3]/[6x^2-25x+4]}*{[4x^2-11x-3]/[6x^2-19x+3]}

*February 19, 2013*

**Algebra, please help quick**

simlify the following to the lowest terms: (a) [x^2-y^2]/[x^2+y^2] (b) [3a^2+6ab-a-2b]/[9a^2-6a+1] (c) [x^4-y^4]/[x^3-y^3] (d) [36x^3y^4z]/[64x^5y^2z^3]

*February 19, 2013*

**please help quick! Calculus**

solve 6x-2x^3 with first principal

*February 10, 2013*

**social science**

what is deepest lake in the world?

*February 5, 2013*

**Chemistry**

When secondary alcohol oxidized it produces alkanes. Draw the structure of 2,2 dimethyl 3-butanol + oxygen and give the names for it.

*September 4, 2012*

**Math**

Find the exact value of the product sec teta csc teta given that sin teta=3/5 and cos teta =4/5

*September 4, 2012*

**Math**

Find the exact value of sin 2teta=2 sin teta cos teta given that cos teta =2/3, 0<teta< pi/2

*September 4, 2012*

**Math**

Let p(x)=x^3+4x^2+x-6. Find a polynomial g(x) can be (remainder) r, such that p(x) can be expressed in the form p(x)=(x-2)g(x)+r

*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.

*August 30, 2012*

**Physics**

Two forces of 4 N and 6 N act at a point along the same horizontal line. What is its resultant force?

*August 29, 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.

*August 29, 2012*

**Physics**

Define linear momentum.

*August 29, 2012*

**Math**

The displacement of a particle is given by: x=t^3-7/2t^2+2t-1. Find the particles initial displacement. And find when the particle is at rest.

*August 27, 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?

*August 27, 2012*

**Maths A**

Sketch the graph of y=x^2-x and find the minimum value of y.

*August 27, 2012*

**Maths A**

Write down the period of the function y=cos x

*August 27, 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.

*August 27, 2012*

**Maths A**

When 3square root of 5= square root of a, find the value of a.

*August 27, 2012*

**Maths A**

Find the coordinates of the vertex of the parabola:y=x^2-8x+2

*August 27, 2012*

**Maths A**

When 3square root of 5= square root of a, find the value of a.

*August 27, 2012*

**Please help quick! Maths**

Solve this pair of equations by the graphical method: 4x+y=9 , 3y-2y=49

*August 26, 2012*

**Please help quick! Maths**

Solve this pair of equations by the graphical method: 4x+y=9 , 3y-2y=49

*August 26, 2012*

**Please help quick! Maths**

Use substitution method to solve x-2y-5=0, 3x-5y=8

*August 26, 2012*

**Maths**

Solve this using elimination method: 4x-3y=-4

*August 25, 2012*

**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?

*August 25, 2012*

**Please help. Chemistry**

What is the MAIN reason for storing sodium metal in mineral oils?

*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.

*August 25, 2012*

**Please help! Chemistry**

In a fume cupboard molten lead(ii) bromide is electrolysed using graphite electrodes. Write half-equations for the reaction at the (i).cathode (ii). Anode (iii). Overall equation (states required).

*August 25, 2012*

**Please help! Chemistry**

In a fume cupboard molten lead(ii) bromide is electrolysed using graphite electrodes. Write half-equations for the reaction at the (i).cathode (ii). Anode (iii). Overall equation (states required).

*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.

*August 25, 2012*

**computer science**

What exactly do computer scientists do?

*August 11, 2012*

**Please help!! English**

Formulate the acronym for "READING THROUGH PARTNERSHIP"

*August 11, 2012*

**Please help quick!! Mathematics A**

Solve for x: 9^x-3^x-8=0

*August 7, 2012*

**Please help quick!! Mathematics A**

Solve for x: 9^x-3^x-8=0

*August 7, 2012*

**Chemistry-please help!**

What is the chemical formula for alluminium hydroxide?

*June 21, 2012*

**Chemistry-please help!**

What is the chemical formula for alluminium hydroxide?

*June 21, 2012*

**Physics-please help quick!!**

When the object is placed beyond 2f, where should you put your eyes for getting the clear image of it?

*June 10, 2012*

**Mathematics-please 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

*June 9, 2012*

**Mathematics-please help!**

If cos x >0 ans sin x= -4/5, then tan x=?

*June 9, 2012*

**Mathematics-please help!**

Solve for x: 9/28 + 3/x+2 = 3/4.

*June 9, 2012*

**Mathematics-please 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.

*June 9, 2012*

**Mathematics-please 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.

*June 9, 2012*

**Mathematics-please help!**

Solve for x: 9/28 + 3/x+2 = 3/4.

*June 9, 2012*

**Mathematics-please help!**

If cos x >0 ans sin x= -4/5, then tan x=?

*June 9, 2012*

**Mathematics-please help!**

The vertices of a triangle are (-2,3),(2,1) and (2,7). What is the area of this triangle?

*June 9, 2012*

**Chemistry. Please help quick!!!**

Is this chemical formula (Fe2O3) iron oxide?

*June 7, 2012*

**Chemistry.**

Is this formula (Fe2O3) iron oxide?

*June 7, 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

*June 7, 2012*

**Chemistry-stoichiometry ...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

*June 7, 2012*

**Chemistry-stoichiometry ...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

*June 7, 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

*June 6, 2012*

**Advance mathematics**

Find the roots of x3-x2-10x-8=0

*June 6, 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?

*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.

*June 6, 2012*

**Chemistry**

2.416g

*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.

*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.

*June 6, 2012*

**Chemistry**

21.4g

*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.

*June 6, 2012*

**Chemistry**

A. Sulfuric acid B. O.01dm3 C. 0.03 moles D. 2*10^22 atoms

*June 6, 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?

*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?

*June 5, 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.

*June 5, 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.

*June 5, 2012*