Collins

Most popular questions and responses by Collins
  1. ALLIED HEALTH

    The main purpose of a peer review committee is to A. identify activities that suggest guidelines aren’t being followed. B. establish procedures for confidentiality of incident reports. C. examine the work habits of individual employees who have access to

    asked on January 22, 2011
  2. maths

    A car is moving along a straight road. The graph below shows how the speed varies with time. "'0 W WCl. (/) time - Which of the following graphs represents the distance covered by the car with time? I 1. t 2. 0> U 0> C o .l9 c '" .l9 ii .!!! "0 time - time

    asked on October 5, 2016
  3. Word problem help plz

    The sum of the age of father and son is 99.if the age of the son is added to the inverted age of the father,the sum is 72.if the inverted age of the son is subtracted from the age of the father.the difference is 28...what are there age? plz help i do not

    asked on January 4, 2016
  4. Math

    Find the total amount he receive in year in which he sell goods worth $9376000 and travel 10,000km? Pls help

    asked on June 8, 2019
  5. Function plz help!!!

    If a function u(x,y)=arctan(y/x) deduce the laplace equation of the function. plz show working i don't no where to start from...plz thanks

    asked on December 12, 2015
  6. maths

    An ant is crawling along the x-axis such that the graph of its position on the x-axis versus time is a semi-circle (see figure). The total distance covered in the 4 s is x[m] 4 t [sI

    asked on October 5, 2016
  7. MATH

    asolid metal cube of side 10cm is melted down and recast as solid metal sphere.calculate the radius of the sphere.Take Pie=3.142

    asked on April 2, 2017
  8. Simultaneous equation need help

    The following simultaneous equations are written in base two 11x+10y=10001 10x-y=10 solve and live your anser in base two?? plz help tnx

    asked on September 26, 2015
  9. Help!! Geometric progression

    Question(1):A G.P has a common ratio of 2 find the value of 'n' for which the sum 2n terms is 33 times the sum of n?? Question(2):in A G.P the product of the 2nd and the 4thterm is double ,the 5th term and the sum of the first 4 term is 80.find the G.P??

    asked on October 1, 2015
  10. Calculus i need help plz plz

    Integrate:Sinxcosx/a^2cos^2(x)+b^2sin^2(x))dx??? plz i need the full working too hard for me

    asked on October 21, 2015
  11. Science

    Two boys A and B are at two diametrically opposite points on a circle. At one instant the two start running on the circle; A anticlockwise with constant speed v and B clockwise with constant speed 2v. In 2 minutes, they pass each other for the first time.

    asked on October 5, 2016
  12. Maths/physics need help agn

    A hand bag containing some loads weighing 162n is carried by two student, each holding the handle of the bag next to him..if each handle is pulled 60degree to the vertical find the force of each student? Help plz

    asked on January 1, 2016
  13. Defective probability i need help

    If 3% of electric bulb produced by a company are defective find the probability that in a sample 100bulbs (a) 0 (b)1 (c)2 (d)3 bulbs are defective??

    asked on October 13, 2015
  14. Literacy exam

    What is expanded academic ASAP and what does it do

    asked on April 1, 2018
  15. Steve look i have corrrected it help plz it urgent anyone plz

    Last year kemi who happens to be my sister was 2wice as old as my lovely brillant primary school friend femi,last three years when i was two less than femi age now.the sum of kemi age next 9years and femi age now and my age three year will be equal to

    asked on October 19, 2015
  16. Steve need your help probability

    If 3% of electric bulb produced by a company are defective find the probability that in a sample of 100bulbs (a) 0 (b) 1 (c)2 d(3) bulbs will be defective???

    asked on October 13, 2015
  17. Maths;function i need help

    (1):Given the cost function c(x)=10+2x and the revenue functio r(x)=3x,find break even quantity and the price (2):if the marginal cost of producing x unit is given by c'(x)=0.4x^3+2x and the fixed cost is p4000.00 find the cost function c(x) and cost

    asked on October 14, 2015
  18. Precalculus

    m varies directly as the cube of n and inversely as g

    asked on October 13, 2016
  19. Maths tangent help me damon or steve help

    The line y=3x+k is a tagent to curve x^2+xy+16=0 find the possible value of k? plz help me i don't no it

    asked on December 20, 2015
  20. Trigonomentry plz help

    tanA=ntanB sinA=msinB find cos^2A in terms of 'm' and 'n' plz help

    asked on December 19, 2015
  21. Physics

    A body of mass 10kg is to be raise from the bottom to the top of an inclined plane 5m long and 3.0m off the ground at the top assuming a frictionless surface,how much work must be done by the force parallel to the plane pushing the block up to a constant

    asked on October 31, 2018
  22. Maths/physics

    A catapult used to hold a stone of mass 500g is extended by 20cm with applied force .f if the stone leaves with a velocity of 40m/s,what is the value of f? Help plz

    asked on January 1, 2016
  23. Word problem maths

    The average age of a class of 21 boys is 14year 3month.if the oldest boy is not counted in.the average drops to 14years 2month,how old is he???

    asked on September 30, 2015
  24. math

    the probability that a radomly chosen potential customer will make a purchse is 0.20if a sales man calls on 6 customers .what is the probabilty they will make exactly 4 sales

    asked on May 8, 2013
  25. Maths need help trigonomentery

    Two circular flower beds have a combined area of (29¥)/2m^2. The sum of the circumferences of the flower beds is 10¥m. Determine the radius of each bed........ Happy new year to all mrs sue steve,reiny,damon...and to all my jishka helper i need help plz

    asked on December 31, 2015
  26. physics

    A train at station P accelerate uniformly from rest until it attain a speed of 100 k/h. It then continues at the speed for some time and decelerate uniformly until it comes to a stop at a station, Q 60 km from P. The total time taken for the journey is an

    asked on October 17, 2018
  27. maths

    A car is moving along a straight road. The graph below shows how the speed varies with time. "'0 W WCl. (/) time - Which of the following graphs represents the distance covered by the car with time? I 1. t 2. 0> U 0> C o .l9 c '" .l9 ii .!!! "0 time - time

    asked on October 5, 2016
  28. question !!!

    sir steve have been looking for that book you said i should buy over the net the whol,night to get,the raw file study them but i could not see can you direct me to,a,link

    asked on March 21, 2016
  29. Help!!! Maths number base

    If 321 base 4 is divided by 23 base 4 and leaves a remainder 'R' what is the value of 'R' ?

    asked on January 15, 2016
  30. physics

    (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth (r>Re), where Re is the

    asked on January 8, 2016
  31. Proving trigonometery

    Show that Sin(A/2)=root(1/2(1-cosA)??

    asked on October 19, 2015
  32. physics

    In the figure, a radar station detects an airplane approaching directly from the east. At first observation, the airplane is at distance d1 = 350 m from the station and at angle θ1 = 31° above the horizon. The airplane is tracked through an angular

    asked on October 11, 2015
  33. Trigonometry prove need help

    Prove that (1-sinb)/(1+sin2b)=tan^2(45-b) plz the b means beta???

    asked on October 10, 2015
  34. Angle of depression need help also

    A fighter plane is flying horizontally at a constant speed of 600km/hr and the pilot observes an oil drolling platform in the sea at an angle of depression 60degree,after flying in 30sec.in the same direction the pilot notices that the depression angle has

    asked on October 7, 2015
  35. mechanics

    please help solve these questions (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of

    asked on January 8, 2016
  36. Word problem

    earth and cement block filling a box weighs 390mlb.the block weigh 2.4times as much as water and earth weighs 1.5times as much as water.water filling the box weighs 2000lb.find the weigh of the cement block.bl? plz help help help!!!! Show work

    asked on January 6, 2016
  37. Word problem help plz

    How many pound of cream containing 12% butterfat must be added to 1800lb.of milk containing 2% butterfat to obtain milk having 3% butterfat? Plz help me

    asked on January 5, 2016
  38. Geometry i need help urgently plz plz plz

    The lenght of a line segement is of 10units and the co-ordinate of one end point are (2,-3) if the abscissa of the other end is 10 find the ordinate of the other end?? Working plz plz

    asked on October 18, 2015
  39. Word problem maths

    The average wage of a class of 21 boys is 14year 3month.if the oldest boy is not counted in,the average drop to 14years 2months.how olds is he in the class ????

    asked on September 30, 2015
  40. Chemistry help

    The earth moves round the sun in one year.the average earth-sun distance is 1.5*10^11m given that the mass of the earth is 5.98*10^24kg (a):the angular momentum of the earth??? (b):kinetic energy of the earth motion?? (c):kinetic energu of the earth motion

    asked on December 18, 2015
  41. Area of a triangle

    In Triangle ABC b=6cm c=8cm and angle A=60 find the area of a triangle.let AD be the bisector of A where D lies on BC and AD=K show that AD=24root3/7

    asked on October 15, 2015
  42. Simultaneous equation

    X+y+z=1......(1) x^2+y^2+z^2=35........(2) x^3+y^3+z^3=97.........(3) solution but from 3 (x^3+y^3)=(x+y)^3-3xy(x+y)......(4) puting 4 into 3 bck (x+y)^3-3xy(x+y)+z^3=97.......(5) now from 1 x+y=1-z......(6) putin 6 into 7 we have (1-z)^3-3xy(1-z)+z^3=97

    asked on October 7, 2015
  43. AP Physics

    A fire engine must lift 30 kg of water a vertical distance of 20 m each second. What is the amount of power needed for the water pump for this fire hose? Is the answer 5880W? If yes, why so?

    asked on December 4, 2015
  44. Permutation need help plz

    How many 4 digit codes can we make provided that -the codes contain of numbers only -codes may not equal to 4000 -codes may not be less than 4000 -numbers may be repeated -codes have to be even numbers??????

    asked on October 10, 2015
  45. I need help maths jus so confused

    X^x=100 findx? these question is still like a black magic to me

    asked on October 2, 2015
  46. Gratitude for my helper

    Sir steve mrs reiny sir bobpursely sir damon ms sue..... Thank you very much you guyz have really help me alot today my result came out and i score 98 out of 100 in my maths exams aldo i am still shaking in my english but with the help of ms sue i always

    asked on January 6, 2016
  47. Maths trigonomentry

    3cosx+4sinx=5 what is x is too difficulat form me to solve? Shw working please

    asked on December 18, 2015
  48. Calculus...need help

    Prove that the integral 1/root(ax^2+bx+c)dx=1/root(a)|n(2ax+b+2root(a(ax^2+bx+c)]+k....please i don,t no it

    asked on October 20, 2015
  49. Algebra word problem.....so difficult

    Last three year kemi who happens to be my sister was 2wice as old as my lovely brillant primary school friend femi,last three years when i was two less than femi age now.the sum of kemi age in the next 9years and femi age noe and my age in the next three

    asked on October 19, 2015
  50. Maths:distance covered urgently need help

    A car travelling at 60km/hr started a journey travelling in an oppsite direction to his destination.After travelling for 35min the driver realised his mistake he then turn the car back around and started travelling in the correct direction.how far away is

    asked on October 15, 2015
  51. Find x and y and also log

    Question1:2^x+y=6,3^x-y=4 find x and y???? quesstion2:a^2+b^2=7ab show that log(a+b)=log3+(loga+logb)/2????

    asked on October 2, 2015
  52. Integration need help

    Integrate sin6xcos5xdx?

    asked on September 28, 2015
  53. Math

    two regular polygons of the same number of sides have sides 5 ft. and 12 ft. in length, respectively. what is the length of the side of another regular polygon of the same number of sides, if its area is equal to the sum of the other two.

    asked on October 19, 2013
  54. sir steve sir reiny any 1 plz help me maths har

    Question. Find the greatest common divisor d of 159 and 51, and find integers x and y solving the equation 159 x + 51 y = d . Answer. d = 3. The extended Euclidean algorithm gives x = 9 and y = -28. (There are other solutions for x and y; these are not

    asked on February 10, 2017
  55. mechanics

    please help solve these questions (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of

    asked on January 9, 2016
  56. Calculus pz help urgently

    Integrate:sinxcos(x-1/4.pi)dx

    asked on January 3, 2016
  57. Maths sum of digit help!!!

    What is the sum of the digit in 4444^4444

    asked on January 2, 2016
  58. Parametric derivatie help plz

    Find the equation of the line tangent to the parametric curve define by x=cos2t and y=sin3t and t=pi/12 plz i don't no where to start from show working

    asked on October 28, 2015
  59. math

    Using elimination method solve 2/x-3/y=1, 8/x+9/y=1/2

    asked on June 1, 2018
  60. Maths

    Solve for following applying spherical trigonometry... 1.Papua New Guinea (37° 45'N, 122°27'W)(since course was 260°) distance travelled =2250nm. A) use law of cosine to calculate a and thus altitude:or B) use law of sine to calculate N and thus

    asked on May 18, 2018
  61. HISTORY

    explain the course of religious wars in buganda

    asked on April 4, 2017
  62. mechanics

    please help solve these questions (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of

    asked on January 9, 2016
  63. physics

    (2). Determine the velocity which a body released at a distance r from the center of the earth when it strikes the earth surface.

    asked on January 8, 2016
  64. Equation help plz

    If x and y satisfy the equation (x+5)^2+(y-12)^2=14 then find the minimum value (x^2+y^2) plz help show working

    asked on January 5, 2016
  65. Calculus help plz

    Integrate:cosmxcosnx.dx if m=n i can not solve it i have tried my best but to no avail

    asked on January 4, 2016
  66. Calculus i need help

    (Cosx)^y=x^siny find dy/dx at point pi/(4,0)

    asked on December 20, 2015
  67. Maths deduce!damon or steve plz help any one

    From (p-q)^2+(q-r)^2+(r-p)^2>(pq+qr+rp) hence deduce that for any number p,q,r,(p+q+r)>3(pq+qr+rp)

    asked on December 18, 2015
  68. Calculus help

    Solve using implicit derivative cuberoot(x)+cuberoot(xy)=4y^2

    asked on October 26, 2015
  69. Simultaneous equation i nee help find x,y

    X^-y=158 y^2-x=108 find x and y?? Show work

    asked on October 22, 2015
  70. Area of a triangle plz help

    |BM|,|CN| are altitude of a triangle ABC if AB=3.5 AC=3.2 BN=2.1 calculate the area of the triangle and hence find |CN|.......show working plz i don't no it

    asked on October 19, 2015
  71. Calculus i need help plz plz

    If y=ws^3/d^4 find the % increase in 'y' when 'w' increases by 2% and 's' decreases by 3% and 'd' increasee by 1%...... There a little error in the first question i post here it is plz i need the working and explanation

    asked on October 18, 2015
  72. Algebra help plz

    If € , ß are the roots of the equation 2x^2 + 4x - 3 = 0 and €^2 , ß^2 are the roots of the equation x^2 + px + q = 0, find the value of p.

    asked on October 18, 2015
  73. Calculus also need help plz plz plz

    If z=1/(x^2+y^2-1) is x(dz/dx)+y(dz/dy)=-2z(1+z) or -z^2(1+z) note:dz/dx=partial derivative of x and dz/dy=partial derivative of y??

    asked on October 17, 2015
  74. Hey reiny how am i going to go with these

    Integrate x^xdx it is to difficult if wolfram can help any link or something

    asked on October 16, 2015
  75. Integral so difficult i need help

    Integrate x^xdx?? help so the solution it to difficult for me

    asked on October 15, 2015
  76. Area of a triangle i need help urgently

    in triangle ABC b=6 c=8 and angle A=60degree find the area of a triangle.let AD be the bisector of A where D lies on BC and AD=K?? Show that AD=24root3/7...

    asked on October 14, 2015
  77. Revolution and frequency i need help physics

    A spring makes 60 revolution in 15mins calculate the period and the frequency of the revolution??

    asked on October 13, 2015
  78. Algebra badly need help

    If (x+1/x)^2=3 then x^72+x^66+x^54+x^36+x^6+1=?? Plz help so confuse

    asked on October 11, 2015
  79. Physics i need help i have exams next weeks that is why i post the question that which i cannot do

    The cost C of running a ship on a certain voyage is said to be given by c=av+b/v where v is the average speed in km/h and a,b are constant.find the value of v in terms of a and b to give the maximum cost,and also find the cost???

    asked on October 10, 2015
  80. Probability i need help

    In a form 1A class there are 25 boys and 20 girls.in a form 1B there are 20boys and 15girls.A learner is choosen at random from each class.find the probability that (a):both learners are boys (b):the choosen learners are of different sexes????

    asked on October 10, 2015
  81. Find x algebra help

    X^2-1=2^x?????

    asked on October 8, 2015
  82. Probability help

    In a football match A vs B in which 7 goals were scored and A won the match what is the probability that the score is 7-0 ??????

    asked on October 7, 2015
  83. Logarithm prove abc

    If logxbase2x=a log2xbase3x=b log3xbase4x=c show that abc+1=2bc??

    asked on October 2, 2015
  84. integration need help

    integrate secxdx

    asked on September 27, 2015
  85. Maths: Sequences need help

    The nth term of a sequences of v1,v2,v3 is given by Vn=6 2^n (1):show that for all value of n>1 Vn1=2(Vn-3)?? (2): obtain and simplify the sum of the first n term of the sequence??

    asked on September 26, 2015
  86. Word problem

    I have some bananas on sunday,on monday morning i ate some of them and at night the bananas became double on, tuesday morning i ate same number ,and at night the bananas so became double.this process continued till saturday and all the bananas were

    asked on September 14, 2015
  87. Difficult algebriac word problem

    I have some bananas on sunday,on monday morning i ate some of them and at night it became double,on tuesday morning i ate same number of bananas and at night also it became double,this process continued till saturday and all the bananas were finished.find

    asked on September 13, 2015
  88. Math

    A new set of car tires has a tread depth of 8 millileters. The tread depth decreases 0.12 millimeter per thousand miles driven. Write an equation that gives the tread depth as a function of the distance driven. Then predict what distance the tread depth

    asked on September 23, 2014
  89. Chemistry

    What is molecular mass of CuSO4(NH4)SO4.H2O

    asked on January 19, 2014
  90. math

    2+3Log a

    asked on November 23, 2016
  91. logarithm help!!!!

    k/k^5=logk find k

    asked on March 20, 2016
  92. expansion help!!! maths

    write down the expansion of (1+x-x^2)^6 in Ascending other please show full working!

    asked on March 20, 2016
  93. binomial expansion help!!!

    in the expansion of (1+x)^(n+1) the coefficient of x^4 is 6k and in the expansion of (1+x)^(n-1) the coefficient of x^2 is k.find the value of k and n, for n>2???

    asked on March 19, 2016
  94. another integral...help

    integrate:xtan^-1/(1+x^2)^2....working plz

    asked on March 18, 2016
  95. integration i need

    integration i need help integrate:(1-e^x)^5/e^4x..plz show full working

    asked on March 18, 2016
  96. Confused bat!!! English

    My english teacher told me that there is a difference between NO and IDON'T NO he said that we should exaplain with refrences am confuse but they are the same

    asked on January 18, 2016
  97. Minimum and maximum value

    Let f(x) be a decreasing the function defined for x>or=0 and f(2a^2+a+1)

    asked on January 6, 2016
  98. Trigonomentery Maths to difficult help me

    Given that cosZ=L where z is an acute angle.find and expression of (cotz-cosecz)/(secz+tanz)? plz help help help!!!! Show work

    asked on January 6, 2016
  99. Chemistry:normal notation plz help

    Using the normal notation of quantum number find the element which has the following value of quantum number n=3 l=2 m=2 s=+1/2 (a):potassuim (b):nitrogen (c):sodium (d):scandium

    asked on January 6, 2016
  100. Another Calculus help plz

    Integrate:( dx/root(x^2-4x)^3 help me show it solution

    asked on January 5, 2016

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