Newest questions and responses by Jan
  1. Statistics

    A popular claim nicknamed "freshman 15" states that many college students gain weight in their freshman year. You are give 95% confidence interval as 55.9% < p < 78.4%. correctly interpret the interval.

    asked on October 17, 2018
  2. Math

    A person spends One-fourth of her income for board, one-twelfth for clothes and one-half for other expenses, and saves $10,000. What is her income?

    asked on December 16, 2017
  3. Math

    Write the equation of a line in slope intercept form that is parallel to the given line and passes through the given point. y = 2x + 3 (1, 7)

    asked on December 14, 2017
  4. Bio

    Intercostal muscles simply explain?

    asked on December 4, 2017
  5. As physics

    The table below shows how the braking distance x for a car depends on its initial speed u u / ms-1 5.0 10 20 4 x / m 2.0 8.0 32 128 the reaction time of a driver is 0.60s. Calculate the sopping distance of the car when u= 30ms-1. The mark scheme says:

    asked on December 1, 2017
  6. As physics

    How do you calculate the braking distance? driver reaction time=0.6s initial speed of car=30ms-1 speed*2= distance*4 Please show all the steps and the equations you used in words the question states initial speed*2 is equal to = distance*4 If you need

    asked on November 30, 2017
  7. As physics

    General braking distance formula /working out please clearly say.

    asked on November 30, 2017
  8. Chemistry

    In my titration method it says trial titration. In my table it says rough titration. I know the meaning of both. But, are they the same thing and could i say my first titration rough value is both the trial titration and rough titration?

    asked on November 28, 2017
  9. physics As

    X - ..- …- ….- ……- ……….- …………..- ………………- …………………- …………………..---------Y -The loss of gravitational potential energy Ep of the rider and motorbike from X to Y is 4.66x10^4 -The kinetic energy Ek of

    asked on November 23, 2017
  10. physics As

    How do you calculate the braking distance? driver reaction time=0.6s initial speed of car=30ms-1 speed*2= distance*4 Please show all the steps and the equations you used in words

    asked on November 23, 2017
  11. Pre-Calculus

    Solve the equation on the interval [0,2pi). 2sin^2x-3sinx+1=0 (2sinx+1)(sinx+1) I don't think I did the factoring correctly. When I multiply it out to double check I get 2sin^2x+3sinx+1

    asked on October 27, 2017
  12. chemistry

    Look in the owner’s manual of your car to determine the amount of gasoline your tank can hold. Using the information presented in the text, calculate how much carbon dioxide is produced from driving your car for a year assuming that all the gas is octane

    asked on May 31, 2017
  13. math

    Clay earned $2,600 last he paid $234 for entertainment. What percent of his earnings did clay pay in entertainment expenses?

    asked on January 6, 2017
  14. Calculus

    An error in the measurement of the radius of a circle results in an error in the computation of its area. Find and interpret the sensitivity of area (a) of a circle to the measurement of radius, r, when the radius r=2 meters.

    asked on October 23, 2016
  15. Physics

    An electric dipole p-> (-> is vector symbol) where p-> = (5x10^-15 C m, -5x10^-15 C m, 0 C m) located at r-> = (0 m, -0.005 m, 0m) Q = 1x10^-6 C at origin. What's the torque on the dipole?

    asked on September 24, 2016
  16. Math

    Ben has 3 times as many guppies as goldfish. If he has a total of 20 fish,how many guppies does he have

    asked on September 6, 2016
  17. Math science

    If the numbers never end is zero the end number?

    asked on August 29, 2016
  18. Algebra two

    Find the quotient and remainder 452÷8

    asked on August 29, 2016
  19. Math

    How do you write 210,004,050 in standard form?

    asked on August 29, 2016
  20. maths

    at a soccer stadium, a child's entrance ticket is 20% of that for an adult. a child's entrance ticket is N$ 10.00. how much does an adult entrance ticket cost?

    asked on August 1, 2016
  21. Medical Transcription Editing

    'Sensory was intact to light touch proprioception and pinprick.' I marked the prepositions 'was' and 'to' in this sentence and was marked incorrect. Advice please?

    asked on May 15, 2016
  22. Grammar

    'The genitourinary exam was unremarkable, with a circumcised !@#$%^&.' Verbs: 'was' and 'with'?

    asked on May 15, 2016
  23. Grammar

    Are these the verbs in this sentence, please help?! 'The patient is alert and oriented and has normal mental status exam.' Verbs: 'is alert' - 'oriented' Thank you.

    asked on May 15, 2016
  24. Medical Transcription Editing

    'The patient had anorexia though he denied any nausea or vomiting' .. I marked the verb in this sentence as 'denied' but it was marked 'incorrect' .. please help!!

    asked on May 15, 2016
  25. Medical Transcription Editing

    'He suffered an injury to his knee and this is causing him pain and discomfort'. What are the verbs in this sentence PLEASE? I think they are 'suffered' and 'causing' but I was marked 'incorrect' .. I'm at a loss!

    asked on May 15, 2016
  26. chemistry

    calculate the number of moles of Mg in 0.12g(relative mass of Mg=24)

    asked on May 6, 2016
  27. Math/Precal

    How do i solve for x: (9^2x)/(27^x-2)=81^3x-4

    asked on April 26, 2016
  28. Math

    I need help with this problem. It says What is the reciprocal of 0.06? Would I change 0.06 to a fraction which is 6/100 and flip it over?

    asked on April 9, 2016
  29. Spanish

    Please check my answer. Are all the accent marks, grammar, and spelling correct? ¿Qué hago para ponerme en forma? Para ponerme en forma hago ejercisios y como bien.

    asked on April 5, 2016
  30. Spanish

    ¿Qué obras de arte o de literatura influyen en tu vida? What would be an answer to this? I believe the question is asking what art or literature has influenced your life.

    asked on April 5, 2016
  31. math

    Sam needs to cut a piece of sheet metal into 8 pieces, it takes 5 minutes to cut, how many cuts will he make.

    asked on March 30, 2016
  32. Physics

    A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of

    asked on March 13, 2016
  33. Physics

    A partide of mass m moves along a trajectory given by x= a cos δ1 t and y = asinδ2 t . Find rand y component of the force acting on the patde, potential energy, kinetic enenev of the partide and hence show that the total energe E= KE + PE =1/2 m(a*2

    asked on March 13, 2016
  34. math

    my son is x year old ,in five years time i will be twice his age and both our ages will be multiples of 10.the sum of ages will be between 50 and 100.how old am i

    asked on March 2, 2016
  35. trigonometry

    You are to run a conduit diagonally cross a parking lot that is 200 ft log and 60 ft wide. How much conduit will you need to complete this run?

    asked on February 8, 2016
  36. maths

    Mr B is now twice as old as his younger brother. Eight years ago he was three times as old as his younger brother was then. How old is the younger brother now?

    asked on February 3, 2016
  37. physics

    Suppose 3.0 cm of rain at 10°C falls on a rectangular region of dimensions 2.0 km x 3.0 km. How much energy was released when water vapor condensed to form this amount of rain?

    asked on February 3, 2016
  38. physics

    0.50 L of water at 16°C is poured into an aluminum ice cube tray of mass 0.250 kg at the same temperature. How much energy must be removed from this system by the refrigerator to turn the water into ice at -8°C?

    asked on February 3, 2016
  39. physics

    Ice is added to 0.75 L of water at 20°C to make very cold water at 0°C. If enough 0°C ice is added so that the mixture becomes all liquid, how much liquid is in the pitcher when this occurs? Density of water = 1.00 x 103 kg/m3.

    asked on February 3, 2016
  40. math

    bob sold 425 tickets for a dance. tickets cost $18 per adult and $6 per child. Total receipts were $6450, how many children tickets were sold?

    asked on December 29, 2015
  41. Algebra 1

    The length of a rectangle is 3 cm more than the width. The perimeter of the rectangle is Cm. What is the length and width of the rectangle?

    asked on November 16, 2015
  42. Social Studies

    What economic, environmental, and social difficulties would Native Communities face as they tried to preserve their own culture? - HORIZONS CANADA MOVES WEST

    asked on November 5, 2015
  43. math

    if I made $400.00 and sold the tickets at 3 for $5.00...how many tickets did I sell

    asked on June 26, 2015
  44. Chemistry

    How much heat is required for 32.5g of Na2co3 to completely decompose?

    asked on June 5, 2015
  45. Math: Arithmetic Sequence.

    the 3rd of an Arithmetic sequence is 8 of the 16th term is 47. Find a subed 1 and the common difference. Construct the sequence.

    asked on June 4, 2015
  46. ART 101

    There are several, but does any one know at least the top 5 vocabulary words art historians use to describe the work of art? I have three but I would like at least 2 more. I would greatly appreciate it. Thanks

    asked on April 29, 2015
  47. POL 201: American National Government

    4. An appellate court that hears an appeal on a money laundering case from a district court (Points : 1) is not concerned with guilt or innocence. can only send the case back for retrial. is concerned with whether proper legal procedures were followed

    asked on April 13, 2015
  48. Bus 101

    Which of the following represents the basic accounting equation

    asked on April 3, 2015
  49. Statistics

    If the average home cost $100,000, with a standard deviation of $15,000, what would a home on the 20th percentile rank cost?

    asked on April 3, 2015
  50. logic and design

    algorithm for waking in the morning, making and eating breakfast, I don't feel this is enough for my teacher can you help me. start get up while not awake drink coffee endwhile if temperature < 65 then wear sweater else wear t-shirt endif if hungry then

    asked on January 30, 2015
  51. science

    The steel round frame is 2,4m high. There have to be wrapd five coils around the frame. One coil diameter is 35mm. Each coil is 50m long. All of the coils have to be wrapd next to each other.What must the diameter be of the frame if the hight of the frame

    asked on January 27, 2015
  52. solid mensuration

    in the pyramid shown in the figure , AB=9 in ., BC= 12in ,and BD= 5 in . the three face angle at B are each 90 degree . calculate the three face angles at A and the total surface of the solid.

    asked on January 13, 2015
  53. Physics

    A ball is thrown horizontally with a velocity of 40 m/s from the top of a building. Find its velocity and displacement after 3 s.

    asked on November 24, 2014
  54. find perimeter

    find perimeter. assume all angles are right angles. 4ft.,6ft, 4ft., 4ft, 9ft., 9ft.,10

    asked on November 4, 2014
  55. Geometry

    Damon, can I write it like that instead of a two column proof. I am comparing a bicycle and a model of one?

    asked on August 5, 2014
  56. Geometry

    How do I write a proof explaining how two images, one the original and the second the reduction, are similiar?

    asked on August 5, 2014
  57. Geometry

    How do I write a proof showing a bike is 9:1 ratio to the original image

    asked on August 5, 2014
  58. Geometry

    Steve, What do I do with the J letter? Do I draw a perpendicular line?

    asked on August 3, 2014
  59. geometry

    I have to construct my initials J and E geometrically. I drew a base line with two points. Then I drew a line through them. I thought this was right for the E but it's not. What am I doing wrong? I do know how to make a parallel and perpendicular lines.

    asked on August 2, 2014
  60. Finance

    Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for $400 million. Because the primary asset of this business is real estate, Templeton’s management has determined that they will be able to borrow the

    asked on June 17, 2014
  61. elem algebra

    the current in a stream moves at a speed of 10 mph. a boat travels 17 mi upstream and 17 mi downstream in a total time of 10 hr. What is the speed of the boat in still water?

    asked on April 19, 2014
  62. chemistry

    Copper(II) chloride and lead(II) nitrate react in aqueous solutions by double replacement. Write the balanced chemical equation, the overall ionic equation, and the net ionic equa- tion for this reaction. If 10.27 g of copper(II) chloride react, what is

    asked on February 24, 2014
  63. 2nd grade math

    Mr foster places 11 garden lights along an 80 meter path. Each light is placed an equal distance apart. How far away is the sixth garden light from the second?

    asked on February 3, 2014
  64. physical science

    a weigh lifter raises a 70-kg barbell from the floor to a height of 2.2 m in 1.2s what was his average power output during the lift?

    asked on February 1, 2014
  65. geometry

    Dru is challenged by her geometry teacher to estimate the height of the school flag pole without measuring. She decided to walk off the length of the shadow cast by the pole by successively walking the noted length of her shadow. If dry is 5ft 6 in.tall

    asked on January 30, 2014
  66. math

    what is the combined height of 6 nickels?

    asked on January 23, 2014
  67. Calculus

    Find the critical numbers of the function. h(t)=t^3/4-6^1/4

    asked on October 14, 2013
  68. Calculus

    Find dy/dt. y=cos^4(pi(t)-20) If you could please show step-by-step, it would be much appreciated. Thanks in advance!

    asked on October 9, 2013
  69. Calculus

    Find the derivative. s=t^6tan(t)-sqrt t

    asked on October 8, 2013
  70. Calculus

    Find the derivative. s=t^6tan(t)-sqrt t

    asked on October 8, 2013
  71. English

    What literary devices does these three sentences pertain to? 1. I am guiltless in the matter, so I wash my hands if it. 2. I had to wait an eternity for the file to download. 3. Her emotional problems placed a wall between her and her family. ( an attitude

    asked on September 23, 2013
  72. algebra

    But I am getting more and more confused. -3-3x=-9????? and x/6=-24 but the there is a negative sign like x - - =-24 6 I know I am over thinking this,but I am confusing myself on these two???

    asked on August 20, 2013
  73. algebra

    what is the correct algebraic expression or equation when b is divided by -5 and the result is 14?

    asked on August 20, 2013
  74. reading

    "Leadership by default; the United States and the final frontier." which of the following topics are listed under related subjects? a. discovery and exploration b. surveys c.mars and d. national security

    asked on August 9, 2013
  75. Business Statistics

    The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 16 people reveals the mean yearly consumption to be 60 gallons with a standard deviation of 20 gallons. a. What is the value of the population mean? What is the best

    asked on July 28, 2013
  76. uitm

    Household hydrogen peroxide is an aqueous solution containing 3.0% hydrogen peroxide by mass. What is the molarity of this solution? (Assume a density of 1.01 g/mL.)

    asked on July 28, 2013
  77. math

    Home health signed a 90,000 note at 11 1/2% simple interest for 180 days for electronic equipment, on October 1. On February 18, the note was sold to another firm at a discount rate of 12 1/2%. Find a) the discount period, b) the discount, and c) the

    asked on June 7, 2013
  78. algebra 1

    Compare y=1/(x+3)+3 and y=1/x

    asked on May 15, 2013
  79. algebra 1

    Graph each function;identify the domain and range;and compare the graph with the graph of y=1/x. 1.y=-10/x Domain: Range: Compare: 2.y=1/(x+3)+3 Domain: Range: Compare:

    asked on May 10, 2013
  80. algebra 1

    Madison is making a vinaigrette for her catering service using olive oil that costs forty cent per ounce and apple cider vinegar that costs twenty-five cents an ounce.The ideal batch of vinaigrette has 25% vinegar.If she has already combined 3 cups of

    asked on May 9, 2013
  81. algebra

    the vertices of quadrilateral EFGH are E(-7,3) F (-4,6) G (5,-3) and H (2,-6) what kind of quadrilateral is EFGH

    asked on May 7, 2013
  82. art

    What are the subclaims in Bernini's works of art

    asked on May 6, 2013
  83. algebra 1

    Solve the rational equation below. 1/x-2+ 2x/(x-2)(x-8)=x/2(x-8)

    asked on April 24, 2013
  84. algebra 1

    Solve rational equation 1. 2/b-2=b/b^2-3b+2 + b/2b-2

    asked on April 23, 2013
  85. algebra 1

    Simplify using long division(please show work so I understand) 1.Divide (72-8x^2+4x^3-36x)by (x-3) 2.Divide (8b^3-6) by (2b-1)

    asked on April 15, 2013

    There is a mass at the end of a 0.6 m string, being swung around overhead at constant acceleration of(3/4)pi rad/sec^2. mass is 39.84 G. Tensile strength is 12.4 newtons need to find how many revolutions there will be before the string breaks, and the time

    asked on March 3, 2013

    There is a mass at the end of a 0.6 m string, being swung around overhead at constant acceleration of(3/4)pi rad/sec^2. mass is 39.84 G. Tensile strength is 12.4 newtons need to find how many revolutions there will be before the string breaks, and the time

    asked on March 1, 2013
  88. Physics

    There is a mass at the end of a 0.6 m string, being swung around overhead at constant acceleration of(3/4)pi rad/sec^2. mass is 39.84 G. need to find how many revolutions there will be before the string breaks, and the time before that happens.

    asked on February 28, 2013
  89. Physics

    A 1000-kg car moving east at 80 km/h collides head-on with a 1500-kg car moving west at km/h, and the two cars stick together. (a) Which way does the wreckage move and with what initial speed? (b) How much KE is lost in the collision?

    asked on January 28, 2013
  90. Intro to Physical Science

    A 3-kg stone is dropped from height of 100 m. Find its kinetic and potential energies when it is halfway to the ground.

    asked on January 22, 2013
  91. Physics

    A 12000 kg airplane launched by a catapult from an aircraft carrier is accelerated from 0 to 200 km/h in 3 s. (a) How many times the acceleration due to gravity is the airplane's acceleration? (b) What is the average force the catapult exerts on the

    asked on January 16, 2013
  92. Chemistry

    A common laboratory reaction is the neutralization of an acid with a base. When 50.0 mL of the .500 M HCl at 25 C is assed to 50 mL of .500 M NaOH at 25 C in a coffee cup calorimeter, the temperature of the mixture rises to 28.2 C. What is the heat of

    asked on November 17, 2012
  93. math

    Hanna and Fran have 120. Hanna and Pete have 230.Pete has 6 times as much as Hanna. How much does Hanna have?

    asked on October 26, 2012
  94. Calculus

    Suppose f and g are inverses, and (1,5) is a point on the graph of f. If f'(1) = -3, what, if anything, does that tell us about g'(1).

    asked on October 20, 2012
  95. math

    what is the value of |x+3|+5x-7 for x =9

    asked on September 14, 2012
  96. math

    are these numbers ordered from the least to the greatest 0,1.square route of 2.3/2.square root of 3

    asked on September 13, 2012
  97. math

    If a board 4 ft.X 8 ft. was cut into 50 pieces, what size would each piece be?

    asked on August 16, 2012
  98. history

    Which of the following is true of President G. W. Bush? A. He reluctantly endorsed the Kyoto Protocol. B. He accepted the United States' role in the International Criminal Court. C. He vowed to punish all countries sponsoring terrorism. D. He rejected

    asked on August 16, 2012
  99. science

    An element emits one alpha particle, one positron, and three beta particles. Its atomic number.... decreases by 2 decreases by 1 stays the same increases by 1 increases by 2

    asked on August 6, 2012
  100. carpentry

    what is the angle of a ladder with a 4 metre vertical and a 1 metre horisontal

    asked on July 9, 2012


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