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Candice

Questions (155)

a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given byx= 5 + 8sin2t + 6cos2t
1. 1 answer
2. 700 views
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
1. 0 answers
2. 394 views
A particle is projected horizontally with velocity V m/s, from a point h meters above ground. Taking g ms^-2 as the acceleration
1. 0 answers
2. 471 views
By using the expansion (1 + x)^2. Prove 8[sigma notation]k=0 2^(3K)(N K) = 3^(2n).Thanks
1. 0 answers
2. 418 views
a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given byx= 5 + 8sin2t + 6cos2t
1. 2 answers
2. 771 views
by equating the coefficients of sin x and cos x , or otherwise, find constants A and B satisfying the identity.A(2sinx + cosx) +
1. 1 answer
2. 674 views
Prove by induction that 9^(n+2)- 4n is divisible by 5 for n greater than or equal to 1.Thanks.
1. 1 answer
2. 506 views
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
1. 3 answers
2. 2,287 views
Find the probability that if the letters of the word "parallel" are randomly arranged that the L's will not be together.In
1. 1 answer
2. 1,607 views
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
1. 1 answer
2. 549 views
Hi, could you please help with this question :)Find the speed and direction of a particle which, when projected from a point 15
1. 1 answer
2. 411 views
Evaluate the integral from 0 to sqrt3 cot^-1(x) dx.Thanks :)
1. 1 answer
2. 361 views
The region above the curvey = sin^-1(x), (0 greater than or equal to y greater than or equal to pi/4), is rotated about the
1. 0 answers
2. 469 views
Evaluatethe 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
1. 1 answer
2. 389 views
How much heat in kilojoules is evolved in converting 1.50moles of steam at 150 degrees celcius to ice at -60.0 degrees celcius?
1. 1 answer
2. 1,216 views
the lawn order lawnmower factory can produce 12 lawnmowers in 8 hours. How many hours will it take the actory to produce 30
1. 1 answer
2. 2,943 views
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
1. 1 answer
2. 693 views
Hi, I have to write up paragraphs on these themes from Frankenstein:a) good vs. evil (manichean) b) duty of responsibility c)
1. 2 answers
2. 690 views
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
1. 1 answer
2. 719 views
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
1. 1 answer
2. 870 views
Explain how the emergence of the global marketplace has been linked to increased integration of the world’s economies.I think
1. 0 answers
2. 499 views
Explain why quotas are more effective than tariffs.Thanks! :)
1. 0 answers
2. 365 views
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
1. 1 answer
2. 423 views
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
1. 1 answer
2. 442 views
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
1. 1 answer
2. 442 views
In Drosophila melanogaster, cut wings (ct) is recessive to normal wings (ct+), sable body (s) is recessive to gray body (s+),
1. 0 answers
2. 1,123 views
which of these words probably comes from the latin word conducere, meaning to lead together??complete,control,convince, conduct?
1. 3 answers
2. 2,127 views
Consider the following multistep reaction:C+D-> <-CB (FAST) CD+D->CD2 (SLOW) CD2+D->CD3 (FAST) C+3D->CD3 (OVERALL) Based on the
1. 0 answers
2. 902 views
consider the following reaction mechanism2A+B->B+C B+D->E+C What is the rate law for step 2 of this reaction?
1. 0 answers
2. 1,154 views
cubed square root 16x^2y over cubed square root 2xy^2
1. 1 answer
2. 489 views
To what volume should you dilute 25mL of a 12.0M H2SO4 solution to obtain a 0.170M H2S04 solution?
1. 1 answer
2. 1,021 views
What is the advantage of producing single sex gametophytes (heterospory) and what is the advantage of producing a bisexual
1. 0 answers
2. 606 views
What physical process is being observed using spectroscopic measurements in Beer's Law experiment?
1. 1 answer
2. 1,130 views
find the area of the region.2y=4sqrtx , y=3 and 2y+2x=6 ?
1. 0 answers
2. 453 views
Evaluate can you please show me the steps.-3/4-3/16
1. 1 answer
2. 391 views
m(squared)-8m+nFind the value on n such that each expression is a perfect square trinomial.
1. 0 answers
2. 532 views
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
1. 2 answers
2. 2,775 views
Is (-1,5) a solution of each system?X+y=4 x=-1
1. 1 answer
2. 424 views
Is the grammar right in this. It's bullet pointed in a resume. Should all those different words be capitalized or lower cassed?O
1. 1 answer
2. 1,107 views
What does it mean when a writer narrative structure is a spiral and what does it mean when a writers narrative structure is
1. 1 answer
2. 515 views
How do I know which cyclohexdiene (?) is more stable? There's one where the double bonds are directly opposite each other (1,4)
1. 2 answers
2. 450 views
1) does an increase in temperature increase the rate of bothe exothermic and endothermic reactions?2) is the reaction between
1. 2 answers
2. 568 views
Find the number of solutions to the equation 2x + 5y = 2005, where x and y are positive integers.Thank u :)
1. 1 answer
2. 484 views
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.
1. 1 answer
2. 416 views
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
1. 2 answers
2. 1,481 views
A positive integer n is such that numbers 2n+1 and 3n+1 are perfect squares. Prove that n is divisible by 8.thanks
1. 2 answers
2. 1,496 views
How do you find the gradient of a curve??
1. 1 answer
2. 429 views
what is the symbol for speed and what unit of measurement is used?
1. 1 answer
2. 407 views
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
1. 1 answer
2. 795 views
questoins asked in a physics lesson which i find hard to answer:1) do all objects have the same acceleration when they fall to
1. 1 answer
2. 394 views
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
1. 7 answers
2. 1,018 views
how are the anthers of a flower adapted to distribute pollen?
1. 1 answer
2. 433 views
3r-5s=-352r-5s=-30 multiply equation 2 by -1 then add the two equations. s will cancel and you can solve for r. Post your work
1. 0 answers
2. 503 views
Are the molecules of water moving closer together toward one another or farther apart as water freezes? Explain.Your exact
1. 0 answers
2. 506 views
What is the optimal level of enrollment at the tuition price of $5000.00Enroll until the marginal cost of the next student
1. 0 answers
2. 539 views

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