Candice

Popular questions and responses by Candice
  1. Graphing Ciricles

    What is the shortest distance between the circles defined by x^2-10x +y^2-4y-7=0 and x^2+14x +y^2+6y+49=0? Thank you

    asked on April 9, 2016
  2. Math1(Please Help Me)

    A group of 894 women aged 70-79 had their height and weight measured. The mean height was 159 cm with a standard deviation of 5 cm and the mean weight was 65.9kg with a standard deviation of 12.7kg. Both sets of data are fairly normal. A.) Suppose you were

    asked on June 21, 2016
  3. Math

    The operation @ is defined as m/n@p/q = (m)(p)(q/n). What is the simplified value of 7/69@23/24$?

    asked on April 6, 2016
  4. Math

    For what values of x is it true that x^2 - 5x - 4 < 10? Express your answer in interval notation. Thank you!

    asked on April 6, 2016
  5. 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

    asked on October 11, 2012
  6. Chemistry

    A sample of solid Ca(OH)2 is stirred in water at 30°!@#$%^&il 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 A 100.-mL sample of this solution is withdrawn and titrated with 5.00 X 10^-2 M HBr.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

    asked on February 17, 2010
  7. Math: Probability

    Hi, could you please help me? I have been stick on this question for a week and I have tried getting help from my teacher and parents, but I still cant get it. TIA A standard deck of 52 cards consists of 4 suits (hearts, clubs, diamonds, and spades). If a

    asked on June 9, 2017
  8. Math

    Let f(x) = 3x-7/x+1 Find the domain of f. Give your answer as an interval. Thank you!

    asked on April 3, 2016
  9. Math

    The perimeter of a rectangle is 24 inches. What is the number of square inches in the maximum possible area for this rectangle?

    asked on April 6, 2016
  10. Chemistry

    Could a buffer system employing H3PO4 as the weak acid and H2PO4^- as the weak base be used as a buffer system within cells? Explain. I know the answer is no but I'm not really quite sure how to explain why.

    asked on June 9, 2015
  11. algebra

    Which property would allow you to use mental computation to simplify the problem 27 + 15 + 3 + 5?

    asked on April 1, 2013
  12. Math(Please Help)

    Table 9: Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour

    asked on June 22, 2016
  13. Poetry

    I’m Nobody! Who are you? Are you – Nobody – too? Then there’s a pair of us! Don’t tell! they’d banish us – you know! How dreary – to be – Somebody! How public – like a Frog – To tell one’s name – the livelong June – To an

    asked on January 12, 2016
  14. 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.)

    asked on November 21, 2012
  15. 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?

    asked on March 17, 2009
  16. math

    a polygon with n number of sides will have how many digonals a)n b)n(n-3) c)n/2 d) n-3/2 e)n(n-3)/2

    asked on August 13, 2019
  17. Maths

    jessie had 7 pets she had horses ducks and spiders altogether they had 30 legs. how many of each pet did she own

    asked on February 2, 2018
  18. Math(Help, AssignmentDueToday)

    Adora has a photo of the Calgary tower that measures 7cm by 19cm. She scans the photo and enlarges it by 160%. By what percentage will the area of the photo increase? A.) 160% B.) 320% C.) 410% D.) 256% A shop sells a small globe that hangs on a keychain,

    asked on June 28, 2016
  19. Math2(Please Help)

    There were approximately 28 million adults on Canada when a survey was conducted. In an online survey, 1008 Canadians took part. 68% said that the penny should be abolished. If the margin of error was +- 3.1%, give an upper and lower estimate for the

    asked on June 22, 2016
  20. Math

    For the nonzero numbers a, b, and c, define J(a,b,c) = a/b + b/c + c/a. Find J(2,12, 9).

    asked on April 6, 2016
  21. Math

    Suppose a function f(x) is defined on the domain [-8,4]. If we define a new function g(x) by g(x) = f(-2x), then what is the domain of g(x)? Express your answer in interval notation.

    asked on April 6, 2016
  22. Math

    Let A(t) = 3- 2t^2 + 4^t. Find A(2) - A(1).

    asked on April 6, 2016
  23. Math

    Let f(x) = x^2 + 4x - 31. For what value of a is there exactly one real value of x such that f(x) = a? Thank you!

    asked on April 3, 2016
  24. Chemistry (30s)

    I need help on this question. I can't seem to understand it. Find the molecular formula of a compound with a gram molecular mass of 30 g and an empirical formula of CH3. Please show your work! and briefly explain how you got it!

    asked on March 23, 2016
  25. Chemistry

    A weather balloon is inflated to a volume of 25.6L at a pressure of 736mmHg and a temperature of 31.9∘C. The balloon rises in the atmosphere to an altitude, where the pressure is 365mmHg and the temperature is -15.6∘C. Assuming the balloon can freely

    asked on February 22, 2015
  26. Chemistry

    1.984 g of a hydrate of K2CO3 is dissolved in 250. mLs of H2O. 10.0 mLs of this solution is tirade against 0.100 M HCl, producing the following results. Flask 1 - Initial 0, final 9.2 Flask 2 - Initial 9.2, final 18.3 Flask 3 - initial 18.3, final 27.8

    asked on January 12, 2015
  27. Physics

    A 2.86-g bullet, traveling at a speed of 452 m/s, strikes the wooden block of a ballistic pendulum, such as that in Figure 7.14. The block has a mass of 230 g. (a) Find the speed of the bullet/block combination immediately after the collision. (b) How high

    asked on December 4, 2014
  28. Chemistry

    A 10.00 ml sample of vinegar, density 1.01g/ml, was diluted to 100.0ml volume. It was found that 25.0 ml of the diluted vinegar required 24.15ml of 0.0976 M NaOH to neutralize it. Calculate the strength of CH3COOH in terms of: a) molarity b) grams CH3COOH

    asked on November 18, 2014
  29. Math

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

    asked on October 22, 2012
  30. 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,

    asked on July 17, 2011
  31. vocabulary

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

    asked on February 25, 2011
  32. 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?

    asked on February 7, 2011
  33. science

    why did the balance record a decrease in mass during the reaction betwwn iron sulphide and hydrochloric acid?

    asked on August 22, 2010
  34. physics

    what is the symbol for speed and what unit of measurement is used?

    asked on March 17, 2009
  35. Math

    solve by factoring x^2 -7x-72=0

    asked on July 11, 2019
  36. Math

    For each quadratic, state the direction of opening and the y-intercept y=x^2 -7x

    asked on July 4, 2019
  37. science

    how did you get the answer 67 to the question the neergy of the photon, to the nearest tenth place, is x10-50J?

    asked on December 12, 2018
  38. math

    consider the functions f(x)=2x-8 and g(x)=x/2+4 (a) Find f(g(x)). (b) Find g(f(x)). (c) Determine whether the functions f and g are inverses of each other (a) What is f(g(x))? Simplify your answer

    asked on May 2, 2017
  39. maths

    oxygen occupies about 1/5 percentage of atmospheric air and the rest is taken up by other gases.what space do theother space occupy?

    asked on December 2, 2016
  40. Math2

    Bob has entered his giant pumpkin into the tops field fair in New England. To qualify for the finals, pumpkins must meet a minimum weight requirement, which is based on the weights of all of the entries. This year, 55.17% of all entries will make it to the

    asked on June 29, 2016
  41. Math( Assignment Due Today)

    During a nature trip, Joni, Billy and Larry documented the location of an eagles nest. From point a, the campers observed the Eagles best on tip of a tree directly across a deep stream. The angle of elevation to the nest from point a is 35 degrees. The

    asked on June 29, 2016
  42. Math(Please Help Assignment Due Now

    For a particular group of people, the number of hours of sleep per night is normally distributed with a mean of 7.7 and a standard deviation of 1.6. To the nearest tenth 67% of people in this group will sleep over blank hours?

    asked on June 29, 2016
  43. Math(AssignmentDueToday)

    Mail, a beaver at a zoo, is 0.90m long. A stuffed animal version of Amik is sold in the gift shop. If the scale factor used to reduce the real Amik to the stuffed animal Amik is 0.15, how long is the stuffed animal Amik? A.) 13.5cm B.) 6cm C.) 13.5m D.)

    asked on June 28, 2016
  44. Math2(Please Help)

    Adora has a photo of the Calgary tower that measures 7cm by 19cm. She scans the photo and enlarges it by 160%. By what percentage will the area of the photo increase? A.) 160% B.) 320% C.) 410% D.) 256% A shop sells a small globe that hangs on a keychain,

    asked on June 28, 2016
  45. Math(Please Help)

    Mail, a beaver at a zoo, is 0.90m long. A stuffed animal version of Amik is sold in the gift shop. If the scale factor used to reduce the real Amik to the stuffed animal Amik is 0.15, how long is the stuffed animal Amik? A.) 13.5cm B.) 6cm C.) 13.5m D.)

    asked on June 28, 2016
  46. Math

    Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour visitors

    asked on June 23, 2016
  47. I Really Need Help

    Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour visitors

    asked on June 23, 2016
  48. Math( Please Help Assignment Due Tomorrow)

    Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour visitors

    asked on June 22, 2016
  49. Please Help Me

    There were approximately 28 million adults on Canada when a survey was conducted. In an online survey, 1008 Canadians took part. 68% said that the penny should be abolished. If the margin of error was +- 3.1%, give an upper and lower estimate for the

    asked on June 22, 2016
  50. Please Help Me

    Table 9: Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour

    asked on June 22, 2016
  51. Math

    For what values of x is it true that x^2 - 5x - 4 < 10? Express your answer in interval notation. Thank you!

    asked on April 7, 2016
  52. Maths - calculus

    equation for the hyperbola which has vertices (0;9) and asymptotes y= 18/5 x

    asked on April 3, 2016
  53. maths

    Equation for the hyperbola which has a vertices of (0;+_9) and asymtotes = y= +-18/5

    asked on April 3, 2016
  54. History

    Is there any credible sites that tells how electricity impacted america?

    asked on February 18, 2016
  55. usHistory

    Is there any website that tells how electricity impacted america

    asked on February 17, 2016
  56. math

    A particle moves along the path y=x^3+3x+1 where units are in centimetres.If the horizontal velocity Vx is constant at 2cm/s,find the magnitude and direction of the velocity of the particle at the point (1,5).

    asked on November 7, 2015
  57. Chemistry

    A student is instructed to standardize an approximately 2.5N KOH solution using a 0.500N H2SO4 stock solution. Describe the experimental procedure he/she must follow. I do not understand what procedure needs to be followed.

    asked on January 26, 2015
  58. Chemistry

    Why is the carbonate solution boiled before titrating?

    asked on January 18, 2015
  59. chem/math

    A car traveling with a constant speed travels 150km in 7200s. What is the speed of the car?

    asked on January 12, 2015
  60. Math

    A ladder 10 ft long leans against a wall. The bottom of the ladder is 6 ft from the wall. How much would the lower end of the ladder have to be pulled away so that the top end would be pulled down by 3 ft?

    asked on December 7, 2014
  61. Physics

    Batman (mass = 75.6 kg) jumps straight down from a bridge into a boat (mass = 631 kg) in which a criminal is fleeing. The velocity of the boat is initially +10.4 m/s. What is the velocity of the boat after Batman lands in it?

    asked on December 4, 2014
  62. Physics

    The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=54300 N. The lift force L generated by the rotating blade makes an angle of 21.0° with respect to the vertical. (a) What is the

    asked on October 27, 2014
  63. english

    compare and contrast themes in the crucible and the film pleasantville

    asked on October 16, 2014
  64. Physics

    A bird watcher meanders through the woods, walking 1.10 km due east, 0.624 km due south, and 1.09 km in a direction 18.2 ° north of west. The time required for this trip is 1.046 h. Determine the magnitudes of the bird watcher's (a) displacement and (b)

    asked on October 5, 2014
  65. Physics

    A police car is traveling at a velocity of 20.0 m/s due north, when a car zooms by at a constant velocity of 44.0 m/s due north. After a reaction time 0.700 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the

    asked on September 29, 2014
  66. Physics

    rom the top of a cliff, a person uses a slingshot to fire a pebble straight downward, which is the negative direction. The initial speed of the pebble is 7.56 m/s. (a) What is the acceleration (magnitude and direction) of the pebble during the downward

    asked on September 29, 2014
  67. life orientation

    identify three study fields/ career paths in order of preference and provide two reasons for each choice

    asked on June 4, 2014
  68. Statistics

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

    asked on April 18, 2014
  69. 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

    asked on March 19, 2014
  70. 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) -

    asked on May 14, 2013
  71. finance

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

    asked on May 6, 2013
  72. 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 .

    asked on April 20, 2013
  73. 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

    asked on April 10, 2013
  74. 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?

    asked on January 25, 2013
  75. gvernemnt

    purpose of a filibuster is to

    asked on November 26, 2012
  76. 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?

    asked on November 20, 2012
  77. 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

    asked on October 22, 2012
  78. 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!

    asked on October 20, 2012
  79. 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

    asked on October 20, 2012
  80. Math

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

    asked on October 20, 2012
  81. 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

    asked on October 20, 2012
  82. 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 on October 19, 2012
  83. Math

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

    asked on October 19, 2012
  84. 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!.

    asked on October 11, 2012
  85. 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?

    asked on August 20, 2012
  86. 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

    asked on August 20, 2012
  87. 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

    asked on July 15, 2012
  88. 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,

    asked on July 15, 2012
  89. 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,

    asked on July 14, 2012
  90. 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

    asked on July 14, 2012
  91. Math

    Evaluate the integral from 0 to sqrt3 cot^-1(x) dx. Thanks :)

    asked on April 19, 2012
  92. 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!

    asked on April 19, 2012
  93. 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!

    asked on April 19, 2012
  94. 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.

    asked on April 3, 2012
  95. 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.

    asked on February 15, 2012
  96. 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

    asked on January 16, 2012
  97. 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.

    asked on December 26, 2011
  98. 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!

    asked on December 9, 2011
  99. 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!!!

    asked on December 9, 2011
  100. 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!

    asked on November 3, 2011

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