Thursday
September 18, 2014

Posts by candice


Total # Posts: 96

life orientation
identify three study fields/ career paths in order of preference and provide two reasons for each choice
June 4, 2014

Statistics
Hi, Are market returns (with numbers such as -3.45, 4, 2.456 representing the "returns") ordinal or nominal data? Thanks!
April 18, 2014

Chemistry
Calculate the number of moles of ag in 5ml of .004m agno3 and the number of moles of cr04 in 5ml of .0024m k2cro4
March 19, 2014

Economics
According to the following game tree, and if the entrant and incumbent both only care about their own monetary payoff, what is/are the game's Nash equilibrium? Entrant - stays out (2,15) - enters If the entrant enters, Incumbent - co operates (5,5) - punishes (-3,9) So ...
May 14, 2013

finance
Calculate the IRR of the following project: Year Cash Flow 0 -$30,000 1 $40,000
May 6, 2013

L.O
identify and describe 3 environmental heath hazards that cause ill health,crises,and or any other community within south africa and globally.
April 29, 2013

Math
When f(x)is divided by x-1 and x+2,the remainders are 4 and -2 respectively . Hence find the remainder when f(x)is divided by x^2+x-2 .
April 20, 2013

Economics
Hi, The demand for inflatable garden gnomes is given by P = 300 – 2Q, while the supply of is P= 100 + Q/2. How many garden gnomes are traded in equilibrium? I found the answer to be Q = 80. The related question was the one I had difficulty with: Suppose that the market ...
April 10, 2013

algebra
Which property would allow you to use mental computation to simplify the problem 27 + 15 + 3 + 5?
April 1, 2013

physics
Mason lifts a box off the ground and places it in a car that is 0.50 meters high. If he applies a force of 8.0 newtons to lift this suitcase, what is the work done?
January 25, 2013

gvernemnt
purpose of a filibuster is to
November 26, 2012

Physics
A soccer player kicks a football frombground level with an initial velocity of 27.0m/s, 30deg. Solve for the: A. Ball's hang time B. Range C. Max Height Ignore air resistance. (Hint: hang time refers to the time the ball is in the air.)
November 21, 2012

financial management
Suppose you invest $2,500 in an account bearing interest at the rate of 14% per year. What will the future value of your investment in six years?
November 20, 2012

Math
Use mathematical induction to prove that 2^(3n) - 3^n is divisible by 5 for all positive integers. ThankS!
October 22, 2012

maths urgent please
a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given by x= 5 + 8sin2t + 6cos2t 1. Find the period and amplitude of the particle. 2. Find the greatest speed of the particle. Could you please explain the steps on how to ...
October 22, 2012

maths urgent please
the chord PQ joining the points P(2p, p^2) and Q(2q, q^2) on x^2 = 4ay always passes through the point A(2,0) when produced. show that (P+q) = pq thanks!
October 20, 2012

Math
A particle is projected horizontally with velocity V m/s, from a point h meters above ground. Taking g ms^-2 as the acceleration due to gravity, 1. Show the equation of the path is given by y = (2hV^2 - gx^2)/ 2V^2 2. Find the range of the particle. Thanks
October 20, 2012

Math
By using the expansion (1 + x)^2. Prove 8[sigma notation]k=0 2^(3K)(N K) = 3^(2n). Thanks
October 20, 2012

Mathematics
Can you please explain how to get the answers please?
October 20, 2012

Mathematics
a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given by x= 5 + 8sin2t + 6cos2t 1. Find the period and amplitude of the particle. 2. Find the greatest speed of the particle. Thanks
October 20, 2012

maths
by equating the coefficients of sin x and cos x , or otherwise, find constants A and B satisfying the identity. A(2sinx + cosx) + B(2cosx - sinx) = sinx + 8cosx I got A = 2, B = 3, which the answers said were correct. However, another part of the question asked hence integrate...
October 19, 2012

Math
Prove by induction that 9^(n+2)- 4n is divisible by 5 for n greater than or equal to 1. Thanks.
October 19, 2012

maths
A box contains 20 balls, of which 5 are red, 5 are blue, 5 are white and 5 are green. Suppose a sample of 5 balls are chosen without replacement. a) find the probability that the sample contains balls of all the same colour (answer is 4/ 20C5, but why isnt it 5/20C5??) b) find...
October 11, 2012

Math
Find the probability that if the letters of the word "parallel" are randomly arranged that the L's will not be together. In class, I'm studying permutations and combinations. The solutions stated the no. of permutations where 3 L's are together is 6!/2!. ...
October 11, 2012

Economics
Find the future value one year from now of a $7,000 investment at a 3% annual compound interest rate. Also calculate the future value if the investment is made for 2 yeaars?
August 20, 2012

MATH
You are interested in finding out if a student’s ACTscore is a good predictor of their final college grade point average(GPA). You have obtained the following data and are going to conduct a regression analysis. Follow instructions on page 324 of your textbook under line ...
August 20, 2012

math
could you please help with this question :) Find the speed and direction of a particle which, when projected from a point 15 m above the horizontal ground, just clears the top of a wall 26.25 m high and 30 m away. Thanks in advance
July 15, 2012

math
A batsman hits a cricket ball 'off his toes' towards a fieldsman who is 65 m away. The ball reaches a maximum height of 4.9 m and the horizontal compoenent of its velocity is 28 m/s. Find the constant speed with which the fieldsman must run forward, starting at the ...
July 15, 2012

Math
A batsman hits a cricket ball 'off his toes' towards a fieldsman who is 65 m away. The ball reaches a maximum height of 4.9 m and the horizontal compoenent of its velocity is 28 m/s. Find the constant speed with which the fieldsman must run forward, starting at the ...
July 14, 2012

Math
Hi, could you please help with this question :) Find the speed and direction of a particle which, when projected from a point 15 m above the horizontal ground, just clears the top of a wall 26.25 m high and 30 m away. Thanks in advance
July 14, 2012

Finance
13.4%
June 17, 2012

Math
Evaluate the integral from 0 to sqrt3 cot^-1(x) dx. Thanks :)
April 19, 2012

Math
The region above the curve y = sin^-1(x), (0 greater than or equal to y greater than or equal to pi/4), is rotated about the y-axis through a complete revolution to form a solid. Evaluate the volume. Thanks!
April 19, 2012

Math
Evaluate the integral from 0 to 4 of (x+1)/(16+x^2) dx the answers are log(sqrt2) + pi/16 Could you please take me through how to get to that answer please, thank you very much!
April 19, 2012

general chemistry
How much heat in kilojoules is evolved in converting 1.50moles of steam at 150 degrees celcius to ice at -60.0 degrees celcius? The heat capacity of steam is 1.84J/g degree C and that of ice is 2.09J/g degree C.
April 3, 2012

math
the lawn order lawnmower factory can produce 12 lawnmowers in 8 hours. How many hours will it take the actory to produce 30 lawnmowers.
February 15, 2012

Math
I have a box that is 15cm-wide, 10cm-long, and 3cm- wide. To get it's volume I would add all the sides. Thanks
January 16, 2012

English
Hi, I have to write up paragraphs on these themes from Frankenstein: a) good vs. evil (manichean) b) duty of responsibility c) nature vs. nurture However, I'm confused about what the differences between these points are... For example, in "nature vs. nurture", ...
December 26, 2011

Math
A circular piece of wire has a radius of 12 cm. This is cut then bent to form an arc of a circle whose radius is 60 cm. Find the angle subtended at the centre by this arc. Give your answer to the nearest degree. Please show working out Thank you so much!
December 9, 2011

Maths
What is the area of the minor segment cut off a circle of radius 10 cm by a chord of length 12 cm? Could you please show me the working out for this question? The answer in the textbook is 16 sq cm. Thanks!!!
December 9, 2011

Economics
Explain how the emergence of the global marketplace has been linked to increased integration of the world’s economies. I think globalisation is involved, how can I structure my answer? Thanks!
November 3, 2011

Economics
Explain why quotas are more effective than tariffs. Thanks! :)
November 3, 2011

Math- integration
Find the area bounded by x^(2/3) and x= y^2 in the first quadrant. (I've worked out the x intercepts to be 0 and 1 in the first quadrant, but how would I find the area?) thanks :)
November 1, 2011

Maths : circular motion
1. A 3 metre piece of string is threaded through a hole in the table. If equal portions of the string are above and below the table, and the top mass of 2kg rotates at 1rev/sec , how fast does the bottom mass of 1kg rotate? (in rev/sec) 2. If, in the above question, the two ...
October 28, 2011

Maths - Circular Motion
One end of a string of length 1m is attatched to the rim of a 2m radius disc while the other end carries a mass of 5kg. If the tension in the string may not exceed 300N. find the maximum speed w in radians/sec and the corresponding angle of inclination of the string to the ...
October 28, 2011

math
let x be the number of horses, and y be the number of riders: x + y = 36 ........(1) 4x + 2y = 104 .....(2) Solving simultaneously, (1) x 2 2x + 2y = 72 ....(3) (2) - (3) 2x = 104 - 72 = 32 thus x = 16 When x = 16, [sub into (1)] y = 20 Therefore there are 16 horses and 20 ...
September 27, 2011

biology: genetics
In Drosophila melanogaster, cut wings (ct) is recessive to normal wings (ct+), sable body (s) is recessive to gray body (s+), and vermilion eyes (v) is recessive to red eyes (v+). All three recessive mutations are X- linked. A female fly with cut wings, sable body, and ...
July 17, 2011

math
-2(x+5)(x-43)
April 8, 2011

english
ok :)
March 10, 2011

english
ok thanks
March 10, 2011

english
We use wikipedia. Do you know of any other helpful websites????????
March 10, 2011

english
My question is about sasquatches. I just want to know if they are real. Is there someone who can answer this question??
March 10, 2011

physics
A baseball mass of 150.0g, is thrown by the pitcher toward the home plate with a velocity of 45.0 m/s. it is hit back at the pitcher with a velocity of 60.0 m/s, what is the average force on the bat, if the ball and bat are in contat for a time of 100.0 ms? What is the change ...
March 1, 2011

vocabulary
which of these words probably comes from the latin word conducere, meaning to lead together?? complete,control,convince, conduct?
February 25, 2011

chemistry
Consider the following multistep reaction: C+D-> <-CB (FAST) CD+D->CD2 (SLOW) CD2+D->CD3 (FAST) C+3D->CD3 (OVERALL) Based on the mechanism determine the rate law for the overall reaction??
February 8, 2011

Chemistry
consider the following reaction mechanism 2A+B->B+C B+D->E+C What is the rate law for step 2 of this reaction?
February 7, 2011

algebra
cubed square root 16x^2y over cubed square root 2xy^2
November 8, 2010

Chemistry
To what volume should you dilute 25mL of a 12.0M H2SO4 solution to obtain a 0.170M H2S04 solution?
September 29, 2010

Biology
What is the advantage of producing single sex gametophytes (heterospory) and what is the advantage of producing a bisexual gametophyte (homospory)?
September 6, 2010

Science
What physical process is being observed using spectroscopic measurements in Beer's Law experiment?
September 2, 2010

Math
6eggs in 7days. find the unit rate
August 30, 2010

science
why did the balance record a decrease in mass during the reaction betwwn iron sulphide and hydrochloric acid?
August 22, 2010

Calculus
find the area of the region. 2y=4sqrtx , y=3 and 2y+2x=6 ?
August 17, 2010

american government
Some analysts maintain that the United States is poorly served by a Congress that is often beset by inaction and localism. Supporters of the Congress maintain that the institution is a superior deliberative and representative institution. Which argument is the more persuasive ...
August 11, 2010

Math
Evaluate can you please show me the steps. -3/4-3/16
May 5, 2010

Algebra 1
m(squared)-8m+n Find the value on n such that each expression is a perfect square trinomial.
April 12, 2010

Chemistry
A sample of solid Ca(OH)2 is stirred in water at 30°C until the solution contains as much dissolved Ca(OH)2 as it can hold. A 100.-mL sample of this solution is withdrawn and titrated with 5.00 X 10^-2 M HBr. It requires 48.8 mL of the acid solution for neutralization. ...
February 17, 2010

Math
Is (-1,5) a solution of each system? X+y=4 x=-1
January 29, 2010

English
Is the grammar right in this. It's bullet pointed in a resume. Should all those different words be capitalized or lower cassed? Oversee plant operation of Meat Dept, Pantry, Sauce Room, Bakery, Security, Shipping/Receiving and Sanitation
January 1, 2010

Eli whitney
American inventor Eli Whitney (1765–1825) designed the cotton gin (a machine that separates raw cotton fibers from their seeds) after he visited a Georgia plantation and observed the difficult process of separating seeds from fibers on the cotton boll (flower). Cleaning ...
December 21, 2009

Eli whitney
First, the cotton balls were put into the top of the machine. Next, you turn the handle, which turns the cotton through the wire teeth that combs out the seeds. Then the cotton is pulled out of the wire teeth and out of the cotton gin.
December 21, 2009

english
What does it mean when a writer narrative structure is a spiral and what does it mean when a writers narrative structure is webbed?
December 15, 2009

Orgo
thanks
November 22, 2009

Orgo
How do I know which cyclohexdiene (?) is more stable? There's one where the double bonds are directly opposite each other (1,4) and another where they are almost next to each other but skip one side (1,3).
November 22, 2009

Chemistry!
1) does an increase in temperature increase the rate of bothe exothermic and endothermic reactions? 2) is the reaction between sodium thiosulphate and hydrochloric acid self-sustaining? This is for a practical investigation and im battling to find answers..any help greatly ...
August 27, 2009

math
Find the number of solutions to the equation 2x + 5y = 2005, where x and y are positive integers. Thank u :)
July 15, 2009

maths
Let X and Y be positive integers such that X^2 + 3X + Y^2 = 404. What is the value of X + Y^3? Find all possible solutions. Thanks! :)
June 9, 2009

maths
Let ABCD be a square with side legnth 7cm. Another square KLMN is inscribed into ABCD such that its vertices lie on the sides of ABCD. Find the lenghts of parts of ABCD sides which are divided by the vertices of KLMN. If [the area of KLMN]: [area of ABCD] = 25:49
June 9, 2009

maths
A positive integer n is such that numbers 2n+1 and 3n+1 are perfect squares. Prove that n is divisible by 8. thanks
June 9, 2009

Maths
How do you find the gradient of a curve??
May 19, 2009

physics
what is the symbol for speed and what unit of measurement is used?
March 17, 2009

math
dependant variable relies on something whereas an independant variable is not reliable on anything Independent variable) causes a change in (Dependent Variable) and it isn't possible that (Dependent Variable) could cause a change in (Independent Variable). For example: (...
March 17, 2009

Physics
what is the weight of a 10g object? this is my answer: W = m.a W = 0,01(9.8) W = 0,098 kg i divided the 10g by 1000 to conver it into kg. is this answer correct?
March 17, 2009

physics
questoins asked in a physics lesson which i find hard to answer: 1) do all objects have the same acceleration when they fall to earth? explain the answer. 2) what is the difference between weight and mass? any help would be greatly appreciated :)
March 10, 2009

Accounting
what section of accounting is this in? tax maybe?
February 28, 2009

dividing monomials
your answer is 1 divided by 2a(2)power b(12)power c(11) power
February 28, 2009

Physics
thank you drwls :)
February 28, 2009

Physics
i dont understand why the 600km doesnt get incorperated into the calculations??
February 28, 2009

Physics
a plane can fly at 200km/h in still air and has to reach a destination 600km north-east. a 50km/h wind blows from the west. in which direction must the plane head?
February 28, 2009

Biology
how are the anthers of a flower adapted to distribute pollen?
April 26, 2008

Business Ethics
i'm looking for the actual article not what another student has written can u tell me where to find the actual article?
March 12, 2008

Algebra 1
3r-5s=-35 2r-5s=-30 multiply equation 2 by -1 then add the two equations. s will cancel and you can solve for r. Post your work if you need further assistance.
January 18, 2007

further mathematics
The roots of the eqn, x^4 + px^3 + qx^2 + rx + s = 0 where p, q, r, s are constants and s does not equal to 0, are a, b, c, d. (i) a^2 + b^2 + c^2 + d^2 = p^2 -2q (in terms of p & q) (ii) 1/a + 1/b + 1/c + 1/d = -r/s (in terms of r & s) (iii) using the above results, or ...
September 11, 2006

Biology
Are the molecules of water moving closer together toward one another or farther apart as water freezes? Explain. Your exact question is taken up by several knowlegable people and answered at the following site: (Broken Link Removed)
August 23, 2006

Econ
What is the optimal level of enrollment at the tuition price of $5000.00 Enroll until the marginal cost of the next student equals $5000.
July 19, 2006

what is a catch 22
what does it mean when someone says something is a catch 22; does this refer to the book? Whenever you wonder about a phrase's or a word's meaning, first you should try looking it up at www.onelook.com. I did this for "catch 22" and here are the results: http...
August 30, 2005

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