Ruth

Newest questions and responses by Ruth
  1. life orientation

    how can i advise a friend who response to a conflict avoidance that is not a healthy for sustaining positive relationship

    asked on February 3, 2019
  2. math

    The human resources department of a consulting firm gives a standard creativity test to a randomly selected group of new hires every year. This year, 50 new hires took the test and scored a mean of 111.6 points with a standard deviation of 14.3. Last year,

    asked on December 14, 2018
  3. Chemistry

    If 20g of NaCl was used to form a 250cm3 of saturated solution of NaCl at 25oC. Calculate the solubility of the salt in mol/dm3 at that temperature. (Relative density of solution-1).

    asked on December 12, 2018
  4. Biology

    List 15 mechanical and 15 biological vectors and the diseases they transmit.

    asked on November 13, 2018
  5. Math

    A bucket when a fifth full holds 10 litres .How many litres will it hold when it is full?

    asked on October 29, 2018
  6. Math

    Solve 1/8^2-3x=2y+2 find x using equation formula

    asked on October 27, 2018
  7. Math

    Solve 1/8^2-3x=2y+2 find x using e question formula

    asked on October 27, 2018
  8. physics

    describe the force board experiment to show how to obtain the resultant of two non-parallel coplanar forces acting at a point.

    asked on September 12, 2018
  9. math

    Two fractions have the same denominator,15. The difference between the fractions is 2/5,and the result of dividing one of them by the other is 4/7. What are the fractions?

    asked on September 8, 2018
  10. math

    the H.C.Of two numbers is 7and their L.C.M is 140.If one of the numbers is 28,find the other number

    asked on September 1, 2018
  11. math

    If (a+b)^2 = a^2 + 6b +b^2 ,what is the value of a?

    asked on September 1, 2018
  12. math

    the sum of two different numbers is 40 . if the smaller number is divided by 4 and the larger number by 12 the sum of the quotients is 6.find the larger number

    asked on September 1, 2018
  13. science

    Importance of reflection of sound waves

    asked on August 21, 2018
  14. math

    a contractor needs two men and 5 litres of paint to paint on a fenced wall that is 40m by 3m in 9 hours. how many men and how much paint does he need to paint a fenced wall 20m by 12m in 3 hours

    asked on August 21, 2018
  15. math

    express 7.179179... as a fraction

    asked on August 20, 2018
  16. math

    Express 4.050505... as a fraction

    asked on August 20, 2018
  17. math

    a candy mixture is made from two kinds of candy one kind costs twice as much per kg as the other kind.$10 worth of the less expensive candy is mixed with $8 worth of the more expensive candy to make 7kg of the mixture what is the price per kg of each kind

    asked on August 19, 2018
  18. math

    Assume x and y have 5:3 profit sharing ratio respectivly and a new member enters by taking 1/5 from x and 1/3 from y.what will be the new ratio of the three people?

    asked on August 10, 2018
  19. Math

    An arc of lemgth 28cm subtends an angle at the centre of a circle. In the same circle, what angle does an arc of length 35 subtend

    asked on March 9, 2018
  20. chemistry

    What separatation method used to separate silver chloride (solid))and sodium trioxonitrate

    asked on January 12, 2018
  21. English

    Vaping should be outlawed. Agree or disagree?

    asked on November 17, 2017
  22. Chemistry

    Hydrazine has the formula N2H4 and is used as a rocket fuel (e.g. for the Apollo moon rockets). It burns in the following reaction for which the enthalpy change is -583 kJ/mol. N2H4(g) + O2(g) → N2(g) + 2 H2O(g) Calculate the N-N bond enthalpy in

    asked on November 15, 2017
  23. physics

    A stunt flier is moving at 15m/s parallel to the flat ground 100m below,how large must the distance x from plane to target be if a sack of flour released from the place is to strike the target?

    asked on October 8, 2017
  24. Math

    Find the square root of 25xsquared-40xy+16ysquared

    asked on September 15, 2017
  25. Maths

    Two boats A and B left a port C at the same time on different route .B travelled on a bearing of 150 degree and A travelled 8km and B had travelled 10km ,the distance between the Two boats was found to be 12km .calculate the bearing of A's route from C.

    asked on June 13, 2017
  26. HOME ECO

    ANOTHER WORD FOR NUTRITION

    asked on May 21, 2017
  27. Pre calc

    sin(θ − ϕ); tan(θ) = 5/12 θ in Quadrant III, sin(ϕ) = − sqaure root10/10 ϕ in Quadrant IV. I used the sin equation sin(a)cos(b)-sin(a)cos(b) However I am still getting the wrong answer

    asked on April 11, 2017
  28. Pre calc

    evaluate the expression under the given conditions. cos(θ − ϕ); cos(θ) = 5/13, θ in Quadrant IV, tan(ϕ) = − square root15,ϕ in Quadrant II Anyone know how to do this I have never been this confused in my life

    asked on April 11, 2017
  29. Pre calc

    A 20-ft ladder is leaning against a building. If the base of the ladder is 7 ft from the base of the building, what is the angle of elevation of the ladder? (Round your answer to one decimal place.) How high does the ladder reach on the building? (Round

    asked on April 4, 2017
  30. business mathematics

    Please assist me to factorise the following. 4x^3 + 5x^2y - 4xy^2 - 5y^2 \

    asked on April 2, 2017
  31. pre calc

    To measure the height of the cloud cover at an airport, a worker shines a spotlight upward at an angle 75° from the horizontal. An observer D = 600 m away measures the angle of elevation to the spot of light to be 45°. Find the height h of the cloud

    asked on March 27, 2017
  32. Math

    Each day Trinh buys a can of soda at a machine in her apartment building for $.75. Instead, she could buy a 12-pack at the grocery store for $4.99. If she did this, how much money would she save in a month

    asked on October 25, 2016
  33. physics

    Helium gas occupies a volume of 0.04 m 3 at a pressure of 2 x 10 5 Pa (Nm -2 ) and temperature of 300 K. Calculate (i) the mass of the helium. (ii) the r.m.s. speed of its molecules. (iii) the r.m.s. speed at 432 K when the gas is heated at constant

    asked on October 24, 2016
  34. Physics

    a 1 kg textbook has been pushed and let go sliding to the left on a flat table no one is pushing the book at this moment. it is sliding a. calculate the weight of the textbook? How do I do these calculations? b. based on this weight, what must the normal

    asked on October 16, 2016
  35. maths

    Three bags of wheat,two bags of corn, and one bag of oats weigh the same as one bag of wheat,one bag of corn and five bags of oats,if two bags of corn and one bag of oats weights 25 pounds and one bags of corn weights 10 pounds,How much does one bag of

    asked on October 8, 2016
  36. world geography

    The North African Maghreb states, dominated by the Atlas Mountains, do not include A. Libya. B. Algeria. C. Morocco. D. Tunisia.

    asked on October 5, 2016
  37. physics

    What is quantity of heat required to melt down completely 1kg of ice at 30 degree celsius

    asked on May 18, 2016
  38. physics

    consider a series R-C circuit consisting of a 30 ohm resistor and 20*10^-6F capacitor connected to a 100V,50Hz power supply.find the magnitude of the current and the angle by which the current leads the voltage.

    asked on April 4, 2016
  39. physics

    prove that I=square root of (I^2avarage). using I=Iosin(wt)

    asked on April 3, 2016
  40. physics

    a conducting loop consisting of a half circle of radius r=0.2m and three straight sections the half circle lies in a uniform magnetic field B that is directed out of the page the field magnitude is given by B=(4t^2 + 2t + 3)T .w/r t is in second. an ideal

    asked on March 31, 2016
  41. chemistry

    what kind of reactions require oxidizing agent(reduced or oxidized) for example SO3->SO4 does it require oxidizing or reducing agent why?

    asked on March 23, 2016
  42. science

    acetic acid has a pka of 4.8 how many ml of 0.1M acetic acid and 0.1M sodium acetate are required to prepare 1L of 0.1M buffer with a PH of 5.8? solve

    asked on March 16, 2016
  43. physics

    a)find the charge to mass ratio for an electron accelerated through 600v in a magnetic field of strength 45mT where the speed of the electrons is 1.4*10^7m/s b)what is the percentage difference b/n your result and the accepted ratio with the value

    asked on March 10, 2016
  44. physics

    an electron moves in the plane of paper toward the top of the page .a magnetic field is also in the plane of the page and directed toward the right .what is the direction of the magnetic force on the electron ?

    asked on March 10, 2016
  45. physics

    a student connects the ends of a pencil lead to a 6.0V supply and measures the current to be 8.6A.the lead is rod of graphite of length 7.5 cm and diameter 1.4mm. a)calculate the resistance of the pencil b)use this data to calculate the resistivity of

    asked on March 6, 2016
  46. physics

    a galvanometer has a resistance 60 ohm and is of 5mA full scale deflection.how would you modify it so as to get 0-10V voltmeter

    asked on March 6, 2016
  47. Math

    Without using table....log(base 5) (8/2) + log(base 5) 3(15/2) -log(base 5) (81/8)

    asked on March 6, 2016
  48. introduction to organisational psychology

    how the organization of your choice goes about changing attitudes of their employees?

    asked on March 4, 2016
  49. introduction to oorganisational psychology

    conflict has always been a part of our lives, especially in the decision making processes. write down a case of multiple approach-avoidance conflict that you have experienced personally. how did you react? do not forget to include all the variance of this

    asked on March 4, 2016
  50. phychology

    classical conditioning , develop analogy for industry

    asked on March 4, 2016
  51. chemistry

    the reaction A+3B—>2C+D is first order with respect to reactant A and second order with respect to reactant B if the concentration of A is doubled and the concentration of B is halved the rate of the reaction would---------------by a factor of-----------

    asked on March 3, 2016
  52. chemistry

    the reaction A+3B->2C+D is first order with respect to reactant A and second order with respect to reactant B if the concentration of A is doubled the concentration of B is halfed and the rate of the reaction would -------by a factor of --------

    asked on March 3, 2016
  53. chemistry

    the reaction A+3B->2C+D is first order with respect to reactant A and second order with respect to reactant B if the concentration of A is doubled the concentration of B is halfed and the rate of the reaction would -------by a factor of --------

    asked on March 3, 2016
  54. physics

    how many electrons drift past a point on for 10 minutes current is 0.2 A.the charge on one electrons 1.6*10^-1

    asked on March 2, 2016
  55. physics

    1)a galvanometer has a resistance of 40 ohm and is of 3 mA full-scale deflection.how would you modify it to act as a 0-5 A ammeter? 2)the galvanometer described in question 1 is to be converted into a 0-5 V voltmeter. a)when the voltmeter is connected to a

    asked on March 2, 2016
  56. physics

    calculate the maximum working current of an appliance rated at 2.4kw with an operating voltage of 240v

    asked on February 27, 2016
  57. physics

    calculate the maximum working current of an appliance rated at 2.4kw with an operating voltage of 240v

    asked on February 26, 2016
  58. physics

    calculate the value of the resistor that will give a total resistance of 4 ohms if it is connected in parallel with a 12 ohm resistor.

    asked on February 26, 2016
  59. math

    a spherical ballon is inflated with gas at the rate 20cm^3 min. how fast is the radius of the ballon changing at the instant when the radius is 2cm

    asked on February 22, 2016
  60. math

    the radius r of a right circular cone is increasing at a rate of 2cm/min.the height h of the cone is related to the radius by h=3r.find the rate of change of the volume when r=6cm

    asked on February 22, 2016
  61. math

    find dy/dx assuming that y is differentiable with respect to x and x is also differentiable with respect to y. a)xy+x^2y^2=x^3y^3 b)xsiny+ycosx=xy

    asked on February 22, 2016
  62. math

    the radius r of a sphere is increasing at a rate of 3cm/min. find the rate of change of the area when r=3cm

    asked on February 22, 2016
  63. physics

    find the drift velocity of the electrons in the copper wire (there are 8.5*10^28 free electrons per m^3 in copper)

    asked on February 18, 2016
  64. math

    a manufacturer wants to design an open box that has a square base and a surface area of 48sq units what dimension will produce a box with a maximum volume?

    asked on February 15, 2016
  65. physics

    a parallel plate capacitor has an area of 5cm^2 and a capacitance of 3.5PF. the capacitor is connected to a 12v battery .after the capacitor is completely charge up the battery is removed. a)what must be the separation of the plates and the charge density

    asked on February 15, 2016
  66. chemistry

    Solutioin A is sodiun hydroxide prepared by dissolving 2.0g in 250cm what is molar concentration of sodium hydroxide

    asked on February 14, 2016
  67. English

    What attitude does the writer of the following sentence seem to have towards gun control? What words convey that this attitude: The anti-gunners are constantly lobbying congress, whining about people killing Bambi.

    asked on February 12, 2016
  68. math

    The base of triangle is 2cm less than the altitude and the area of the triangle is 60cm². calculate the altitude.

    asked on February 3, 2016
  69. Algebra

    Martina hits a volleyball with a velosity of 13 m^s. When she hits the ball it is 1m above the ground. How long will ot take for the ball to hit the ground.

    asked on January 15, 2016
  70. math

    lnx monotonicity

    asked on January 3, 2016
  71. physics

    what is the potential energy of 4 point charges each of value Q at the corners of a square of side length a.

    asked on December 28, 2015
  72. math

    what is the 3rd derivative of f(x)=x^2 e^x^2

    asked on December 27, 2015
  73. math

    if h(x)=sinπ/x then find hderivative(4)

    asked on December 27, 2015
  74. Algebra

    How do I answer this? Robert needs to cut four shelves from a board that is 2.5 meters long. The second shelf is 18 centimeters longer than twice the length of the first shelf. The third shelf is 12 centimeters shorter than the first shelf. The remaining

    asked on April 13, 2015
  75. Math

    For what values of k does the line y= x + k pass through the circle defined by x^2 + y^2 = 25 at: 2 points? 1 point? 0 points? I found the discriminant: 100- 4k^2 but i don't know how to find for each of the points

    asked on March 26, 2015
  76. Math if my answer is correct

    The function h(t) = 2 + 50t - 1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. A) How long will the ball be above the surface of Mercury? I get

    asked on March 25, 2015
  77. Chemistry

    how many grams of potassium hydroxide would need to be added to 400 mL of 0.150M HNO3 to raise its pH to 2.5

    asked on March 17, 2015
  78. algebra

    Graph the equation y = 4 x + 8. How do you solve For y and x so I can graph the equation?

    asked on January 29, 2015
  79. PSY 410 Abnormal Psychology

    HELP- My text book wont let me open on my laptop and I can't seem to find the information I need. Create a timeline that displays the development of abnormal psychology. Include at least seven main milestones

    asked on January 26, 2015
  80. math

    what is the money value of 0.098

    asked on December 5, 2014
  81. Chemistry

    Give a acid-base pairs which produce Na2CO3 as a salt

    asked on October 8, 2014
  82. Algebra (Quadratics)

    The height y (in feet) of a baseball thrown by a child is y = -1/10 x^2 + 3x + 6 where x is the horizontal distance (in feet) from where the ball was thrown. Will the ball fly over the head of another child 30 feet away trying to catch the ball? (Assume

    asked on September 25, 2014
  83. physics really stuck

    A sprinter starts from rest and accelerates for 5s. He then travels at a constant velocity for 10s. Finally he slows down to a stop in 5s. Draw a distance time graph to represent his motion.

    asked on September 17, 2014
  84. Physics

    How do you convert a distance time graph to a velocity time graph. In my first distance time graph, i have 3 curves, two are above the x axis the the middle curve is under the x axis. i am confused on how to change this graph into a velocity time graph

    asked on September 16, 2014
  85. Physics

    A body travels from rest with acceleration 8m/s(squared)Find its velocity when it has covered a distance of 100 meter?

    asked on August 24, 2014
  86. Math

    Venski and his brother have each agreed to mow half of the front lawn, which is a rectangle, 120 feet by 60 feet. The law mower cuts a 4-foot-wide strip. If Venski starts at one corner and mows around the lawn toward the center, on which trip around will

    asked on April 1, 2014
  87. stats

    If a random sample of size n = 65 is drawn, find ¦Ìx, ¦Ò x and P(24 ¡Ü x ¡Ü 26). (Round ¦Ò x to two decimal places and the probability to four decimal places.) ¦Ìx = Correct: Your answer is correct.

    asked on March 3, 2014
  88. Math

    Color this square so that one-half is green,one-third is yellow and and the rest is brown.Each triangle should be just one color.Make any pattern you like. How much of the square is brown?

    asked on December 10, 2013
  89. Math

    Which digit (0-9) occurs most often on a calendar for this month. Which occurs least often? Is the answer the same for every month of this year?

    asked on December 10, 2013
  90. math

    A rancher wishes to use 86 ft of fencing to enclose a rectangular paddock and subdivide the region into three smaller areas. If the total enclosed area is 225 ft2, find the dimensions of the enclosed region.

    asked on November 4, 2013
  91. math

    A rancher wishes to use 86 ft of fencing to enclose a rectangular paddock and subdivide the region into three smaller areas. If the total enclosed area is 225 ft2, find the dimensions of the enclosed region.

    asked on November 4, 2013
  92. Algebra (Word Problem)

    Jack and Jill each tipped their waiter 50 dollars. Jack tipped 4% of his bill while Jill tipped 10% of her bill. What is the total bill of the two?

    asked on October 20, 2013
  93. maths

    A straight highway leads to the foot of a tower of height 50m. From the top of the tower, the angles of depression of two cars standing on the highway are 30 degree and 60 degree. What is the distance between the two cars and how far is each car from the

    asked on October 17, 2013
  94. maths

    A straight highway leads to the foot of a tower of height 50m. From the top of the tower, the angles of depression of two cars standing on the highway are 30 degree and 60 degree. What is the distance between the two cars and how far is each car from the

    asked on October 17, 2013
  95. maths

    The shadow of a tower standing on a level ground is found to be 2x meters longer when sun's altitude is 30 degree than when it was 45 degree.Find the height of the tower.

    asked on October 17, 2013
  96. figure of speech

    The World is as big as....

    asked on October 7, 2013
  97. Algebra

    Consider two points A=(2,5) and B=(4,3), and a third point P=(a,b) on the x-axis. If the minimum value of line PA^2+ line PB^2 is c, what is a+b+c?

    asked on September 29, 2013
  98. Algebra (Work Problem)

    Susan's backyard has three faucets: A, B and C. If she turns on all three of them, it takes 380 minutes to fill the pool. If she turns on only A and B, it takes 570 minutes, and if she turns on only B and C, it takes 760 minutes. If she turns on only A and

    asked on September 22, 2013
  99. Algebra

    Find the equation of the circle having the given center and radius. center (-5,1), radius 6 squared.

    asked on September 14, 2013
  100. Algebra

    what are the appropriate metric units for measuring Bryce Canyon National Park

    asked on September 14, 2013

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