# Jan

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.

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?

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)

4. ## Bio

Intercostal muscles simply explain?

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:

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

7. ## As physics

General braking distance formula /working out please clearly say.

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?

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

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

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

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

13. ## math

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

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.

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?

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

17. ## Math science

If the numbers never end is zero the end number?

18. ## Algebra two

Find the quotient and remainder 452÷8

19. ## Math

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

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?

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?

22. ## Grammar

'The genitourinary exam was unremarkable, with a circumcised penis.' Verbs: 'was' and 'with'?

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.

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!!

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!

26. ## chemistry

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

27. ## Math/Precal

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

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?

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.

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.

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.

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

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

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

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?

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?

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?

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?

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.

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?

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?

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

43. ## math

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

44. ## Chemistry

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

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.

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

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

48. ## Bus 101

Which of the following represents the basic accounting equation

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?

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

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

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.

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.

54. ## find perimeter

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

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?

56. ## Geometry

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

57. ## Geometry

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

58. ## Geometry

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

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.

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

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?

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

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?

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?

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

66. ## math

what is the combined height of 6 nickels?

67. ## Calculus

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

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!

69. ## Calculus

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

70. ## Calculus

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

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

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???

73. ## algebra

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

"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

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

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.)

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

78. ## algebra 1

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

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:

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

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

82. ## art

What are the subclaims in Bernini's works of art

83. ## algebra 1

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

84. ## algebra 1

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

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)

86. ## 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. Tensile strength is 12.4 newtons need to find how many revolutions there will be before the string breaks, and the time

87. ## 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. Tensile strength is 12.4 newtons need to find how many revolutions there will be before the string breaks, and the time

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.

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?

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.

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

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

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?

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).

95. ## math

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

96. ## math

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

97. ## math

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

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

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

100. ## carpentry

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

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