Questions Asked on
January 10, 2011

  1. Epidemiology

    How the bias would affect the measure of association. Would it be under or over estimated? A cohort study was designed to look at the association of pesticides and the occurrence of childhood leukumia. Children living in rural areas were followed and

    asked by Dianna
  2. history

    For whom and to what extent was the American West a land of opportunity from 1865 to 1890?

    asked by Lilly
  3. Epidemiology

    Indicate how the bias would affect the measure of association. Would it be under estimated, or over estimated or unchanged. Persons diagnosed as HIV positive or negative were interviewed about their number of lifetime sexual partners. The interview

    asked by Dianna
  4. Algebra

    Sue's student loans totaled $31,000. One of her loans was at 2.8% simple interest and the other at 4.5%. After one year, Sue owed $1024.40 in interest. What was the amount of each loan?

    asked by Ja el
  5. Science

    Improper functioning or regulation of which of the following might lead to poor regulation of the membrane permeability? 1. albumin 2. fibrinogen 3. platelets 4. lymphocytes 5. chloride ion levels

    asked by Kim
  6. trigonometry

    Using exact values,find the value of: (A=30degrees) sin 2A + tan 3A/2 - cos A + sec(A+15), when A= 30degrees There were no parentheses and no exponents. please help by showing the work in details. Thank you! I pluged in the numbers and got this I don't

    asked by alex
  7. physics

    The following wave function represents a travelling wave: y = 3.45 / [6.35 + (6.35x−8.30 t )2] where y and x are in cm, and t is in seconds.a) What is the maximum displacement of the wave at t = 7.50 s ? b) what is the velocity.

    asked by mike
  8. chemistry

    When a volume of H2 reacts with an equal volume of Cl2 (assume you have 1 L of each) at the same temperature and pressure, what volume of product having the formula HCl is formed? Question 4 answers

    asked by Anonymous
  9. books

    what tense is the feminine mystique written in? first , third or omniscient?

    asked by esmeralda
  10. algebra

    Write Home Depot’s 2002 sales and 2006 sales in scientific notation. 2002: (5.82×10^10) 2006: (9.08×10^10) This part I got. but can someone help me with the second part... 1) Find the increase in sales from 2002 to 2006. I think the answer is:

    asked by Anonymous
  11. writing

    i need help on writng a thesis statement about women suffrage.

    asked by alma
  12. Physics

    A motor vessel tows a small dinghy by a rope which makes an angle of 20 degrees with the horizontal. If the tension in the rope is 15 kgf ;find a) the force which effectively pulls the dinghy forward. b)the force which lift its bows out of the water.

    asked by Asamoah
  13. Precalculus

    cos2x=cos(x+x)=

    asked by Lisa
  14. english grammar

    Change these active voice sentences into the passive voice? a) Farmers grow rice in India. b) I will finish the report later. c) Scotland has never won the World Cup. d) The American people elected George W. Bush. e) Agatha Christie wrote ‘Murder on the

    asked by rahila
  15. microsoft office

    what does the program winzip do for the files on your computer

    asked by dutch
  16. math

    3 geometric means of 32 and 1/8

    asked by zeus
  17. math

    3 geometric means between 32 and 1/8

    asked by zeus
  18. english

    need help revising the outline to complete sentences in parallel form. improving health 1. exercise a. aerobics b. stretching and strengh training c. vary routine 2 better eating habits a. healthy food b. eat less c eat more often

    asked by Anonymous
  19. PHYSICS

    A person whose weight is W=584 N doing push-ups. Find the normal force exerted by the floor on each hand each foot, assuming that the persons holds this person |=central gravity foot arm -------|-------- .840m .410m

    asked by EHm
  20. PHYSICS

    A person whose weight is W=584 N doing push-ups. Find the normal force exerted by the floor on each hand each foot, assuming that the persons holds this person |=central gravity foot arm -------|-------- .840m .410m

    asked by EHm
  21. Physics

    A man using a 70 kg garden roller on a level surface exerts a force 20 kgf at 45 degrees to the ground . Find the vertical force of the roller on the ground if he ; a) pulls the roller. b) pushes the roller.

    asked by Joseph
  22. chemistry

    what is the density of methyl gas at 25 degrees celcious and 1.50 atmosphere.

    asked by me
  23. chemistry

    what is the mass of 250.0 ml gas at 25 degrees celcious at 0.359 atmosphere

    asked by me
  24. chemistry

    what volume will 5.00g of dinitrogen oxide gas occupy at 50.0 degrees celcious and 12.0 atmosphere

    asked by me
  25. Chemistry

    Analysis of a compound indicates that it is 49.02% carbon, 2.743% hydrogen, and 48.23% chlorine by mass. A solution is prepared by dissolving 3.150 grams of the compound in 25.00 grams of benzene, C6H6. Benzene has a normal freezing point of 5.50degreeC

    asked by Tracy
  26. PHYSICS

    A man holds a 178N ball in his hand, with the forearm horizontal. He can support the ball in this position because of the flexor muscle force M, which is applied perpendicular to the forearm. The forearm weighs 22 N and has a center of gravity as

    asked by Eissa
  27. L.A.

    the sandlot moive questions 1. what are one of the characters physically and psychologically 2. what dies this film say about the importance if of friendship. p.s. i got #2 questions but i just need help with more of #2 3.what does this film say about the

    asked by yuku
  28. chemistry

    For neutralization of 10ml 10% sodium carbonate how many 1N H2SO4 is required?

    asked by Nagesh
  29. English

    Can you check these sentences for me, please? Thank you. 1) Wordsworth defined poetry as the spontaneous overflow of powerful feelings. 2)Tha subject matter of poetry was (were?) everyday situations and the life of men living in the countryside, where man

    asked by Franco
  30. Physics

    You place a box weighing 251.6 N on an in- clined plane that makes a 38.4◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.

    asked by Danielle
  31. Physics

    You place a box weighing 251.6 N on an in- clined plane that makes a 38.4◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.

    asked by Danielle
  32. Physics

    A 1.9 kg otter starts from rest at the top of a muddy incline 84.1 cm long and slides down to the bottom in 0.60 s. What net external force acts on the otter along the incline? Answer in units of N.

    asked by Michael
  33. Physics

    A freight train has a mass of 1.2 × 107 kg. If the locomotive can exert a constant pull of 5.0 × 105 N, how long would it take to increase the speed of the train from rest to 89.2 km/h? (Disregard friction.) Answer in units of s.

    asked by Michael
  34. English

    I tried to rephrase them myself. Can you have a look at them, please? In the last sentence I was doubtful whether to use "of" or "from". 1) Wordsworth defined poetry as .... 2)Tha subject matter of poetry should deal with everyday situations. 3)The ship is

    asked by Franco
  35. english

    Read the following sentence. Decide if the BOLD adverb modifies a verb, adjective, or adverb. He did a VERY good job. 1. verb 2. adjective 3. adverb

    asked by Tiana
  36. english

    does anyone know any modern movies or songs about the ocean? "Follow the river and you will find the sea." French proverb

    asked by jessica
  37. Physics

    You place a box weighing 251.6 N on an in- clined plane that makes a 38.4◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.

    asked by Danielle
  38. math

    |60|___|-60| < > =

    asked by drew
  39. Integrated Physics and Science

    A crowbar is used as a lever. The effort force of 40 newtons moves 3 meters. The resistance force of 54 newtons moves 2 meters. What is the efficiency of the lever? A) 100% because energy must be conserved B) 90% C) 25% D) 18% i need help. i don't know how

    asked by Nella
  40. physics

    The magnitude of each of the charges in the figure below is 8.75 10-12 C. The lengths of the sides of the rectangles are 2.94 cm and 4.80 cm. Find the magnitude of the electric field at the center of the rectangle in the figures below. both pictures are

    asked by michelle
  41. math

    Muhammad Chabali earns $13,600 per year. He is paid 12 times per year and claims 2 exemptions. His city and state combined tax him at a rate of 10%. How much tax is withheld per pay period?

    asked by jenny
  42. Chemistry

    Analysis of a compound indicates that it is 49.02% carbon, 2.743% hydrogen, and 48.23% chlorine by mass. A solution is prepared by dissolving 3.150 grams of the compound in 25.00 grams of benzene, C6H6. Benzene has a normal freezing point of 5.50degreeC

    asked by Tracy
  43. Physics

    An alpha particle (mass=6.68x10^-27kg)is emitted from a radioactive nucleus with an energy of 5.00MeV. How fast is the alpha particle moving in m/s? (1 MeV= 1.6x10^-13J). I don't know how to start to solve this problem A.2.40x10^7 m/s B.1.55x10^7 m/s

    asked by Matt
  44. algebra

    According to the rational root theorem, which is not a possible rational root of x3 + 8x2 x 6 = 0?

    asked by Zac
  45. algebra 2

    Factor x3 4x2 3x + 18 = 0, given that 3 is a zero.

    asked by Zac
  46. Math

    Using the binomial theorem, Find the first three terms in the expansion of (x-(1/x))^5. My solution: C(5,0)x5 + C(5,1)(x4)(-1/x) + C(5,2)(x3)(-1/x)2 x5 + (5)(x4)(-1/x) + 10(x3)(-1/x)2 x5 + (-5x4/x) + 10(x3)(1/x2) x5 + (-5x3) + 10(x) x5 -5x3 + 10x The first

    asked by Ed
  47. Chemistry

    which method increase the surface of a solid, allowing it to dissolve faster? A)changing the state of the solid B)adding has to the solid C)heading the solid D)reducing the size of the solid

    asked by AHS
  48. physical

    Two vehicles are approaching an intersection. One is a 2500- kg pickup traveling at 14.0 m/s from east to west (the negative x-direction), and the other is a 1500-kg Mercedes going from south to north (the positive y-direction at 23.0 m/s). (a) Find the x

    asked by Amani
  49. Math

    How many different paths will spell the word BINOMIAL in the following arrangement(moving diagonally downwards to the left or right)? ...B ..I I .N N N O O O O .M M M ..I I ...A L L My Answer: Starting from B using Pascal's Triangle ...B ..1 1 .1 2 1 1 3 3

    asked by Jeff
  50. chemistry

    Lewis diagram for NO3- and NH4+

    asked by charlie
  51. Algebra

    (2-3i)(1-i)-(3-i)(3+i)

    asked by m
  52. algebra 2

    Which binomial is a factor of f(x) = x4-27x2-14x + 120?

    asked by Zac
  53. Medical terminology

    I need know....How can eliminating abbreviation reduce errors?...Should written policies be developed for abbreviation usages? if yes,what should the policies contain? if no,explain......When are abbreviation acceptable? Who should use them and

    asked by Kathy
  54. Maths

    A Swiss Roll cake is 21cm long. When I cut it onto slices if I reduce the thickness of each slice by 1/4cm. Taking x as the number of thicker slices, write down an equation in x and solve. I just don't undertsand how to form the question.

    asked by Remy
  55. algebra 2

    Which binomial is a factor of f(x) = x4 - 27x2 -14x + 120? (x-4) (x-2) (x + 5) (x + 6)

    asked by Zac
  56. math

    HELP ME!!! One of your friends missed the class on scientific notation. Describe how you would explain to your friend what it means for a number to be in scientific notation and how to convert a number from standard form to scientific notation.

    asked by drew
  57. Math

    The height of the tide in a given location on a given day is modelled using the sinusoidal function h(t)=5 sin (30(t-5))+7. a) What time is high tide? What time is low tide?

    asked by Emily
  58. Thermodynamic

    N2 is described by its state properties of temperature @ - 100 Degree C, and pressure @10.0 MPa. Determine if it is reasonable to assume that the given substance behaves as an ideal gas at the specified state. If the substance is determined as a real gas

    asked by chris
  59. Finance

    Determine the value of a share of DuPont Series A $4.50 cumulative preferred stock, no par, to an investor who requies a 9 percent rate of return on this security. The issue is callable at $120 per share plus accrued dividens. However, the issue is not

    asked by Sandy
  60. Finance

    Hooks Athletics, Inc., has outstanding a preferred stock with a par value of $30 that pays a dividend of $2.50. The preferred stock is redeemable at the option of the stockholder in 10 years at a price equal to $30. The stock may be called for redemption

    asked by Sandy
  61. Thermodynamic

    One Kg steam with a quality of 0.2 is heated in a piston / cylinder vessel at a constant pressure of 200 KPa unit the temperature reaches 400 degree C. calculate the work done by the steam.

    asked by chris
  62. Finance

    The following stock quotation were recently reported in The Wall Street Journal: 10.3 AT&T T 3.6 21 39.43 0.26 0.1 Boeing BA 1.6 31 88.91 -0.85 -8.7 JohnsJohns JNJ 2.5 16 60.26 -0.08 a. What are the dividend yields on the common stock of AT&T Boeing, and

    asked by Sandy
  63. Finance

    Blue Moon Corporation has one million shares of common stock outstanding. In a typical annual election for the board of directors, shareholders representing 70 percent of the shares outstanding exercise their right to vote. The company has nine members on

    asked by Sandy
  64. Science

    Newton's _____ law explains why my hands hurt when I clap loudly

    asked by Cristal
  65. american goverment

    among the broad purposes of the united states government spelled out in the preamble to the constitution os the obligation to

    asked by amanda
  66. reading

    how do you describe the use of poetic devices and identify ann example

    asked by courtney
  67. science

    How does a tennis ball change shape when you hit it?

    asked by Hannah
  68. math

    The total amount of interest on a loan of $6,000 for 150 days is 210.50.Using the ordinary interest method,what is the rate of interest on this loan?Round answer to the nearest hundredth. I know the ordinary interest method is 360 days. My anwser is 8.42%

    asked by Bonnie
  69. English

    Why did yun ok came to the mountain hermit?

    asked by Aabid
  70. accounting

    Select a company that you are familiar with from the transportation industry. •Collect the 4 main financial statements from credible sources (e.g., nationally syndicated newspapers, peer-reviewed journals, investor relations, Web sites or annual reports.

    asked by cassandra
  71. Iron and Sulphur reaction

    Please give a particle diagram of the iron sulphur reaction

    asked by Fred
  72. Math

    How can the statement “elephants are large” be written as a conditional statement?

    asked by Needs Help
  73. English

    Can you check if my rephrasing is correct? Thank you very much. 1) The monster's skin is yellow and scarcely covers the pulsing work of its muscles and arteries. 2) The ship left the harbour, but a violent storm-blast compared to an enormous bird brought

    asked by Franco
  74. Math

    What are the two conditional statements make up the biconditional statement shown below? Two lines are skew if and only if they are not coplanar.

    asked by Needs Help
  75. Math

    A box contains 2 white calls and 7 pink balls. Two balls are drawn at random from the box. a) If the first ball is drawn and not replaced, what is the probability that two balls will be drawn of different colors? b) If the first ball is drawn and then put

    asked by Nicole
  76. psy 210

    examples of statistical graphs from any Internet source. Copy and paste these into your discussion response, and then explain how it is set up to give an impression that leads the reader to agree with the subject’s conclusion. Then, suggest an alternate

    asked by tina
  77. physics

    A bird is flying with a speed of 12.0 m/s over water when it accidentally drops a 2.30 kg fish. The acceleration of gravity is 9.81 m/s2 . If the altitude of the bird is 8.20 m and air resistance is disregarded, what is the speed of the fish when it hits

    asked by Michael
  78. Physics

    A jet plane lands with a speed of 120 m/s and can decelerate uniformly at a maximum rate of 5.8 m/s2 as it comes to rest. Can this plane land at an airport where the runway is 0.89 km long? Answer this by calculating. Answer in units of km.

    asked by Michael
  79. physics

    A ball initially at rest rolls down a hill with an acceleration of 2.7 m/s2. If it accelerates for 8.1 s, how far will it move? Answer in units of m.

    asked by Michael
  80. Physics

    A baby sitter pushing a stroller starts from rest and accelerates uniformly at a rate of 0.682 m/s2. What is the velocity of the stroller after it has traveled 7.74 m? Answer in units of m/s.

    asked by Michael
  81. Physics

    An object is dropped from rest. What is its instantaneous speed when it has been in motion for 5 s? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

    asked by Michael
  82. Physics

    A projectile is fired straight up at a speed of 16 m/s. How long does it take to reach the top of its motion? The acceleration of gravity is 9.8 m/s2 . Answer in units of s.

    asked by Michael
  83. Physics

    An autographed baseball rolls off of a 0.55 m high desk and strikes the floor 0.82 m away from the desk. The acceleration of gravity is 9.81 m/s2 . How fast was it rolling on the desk before it fell off? Answer in units of m/s.

    asked by Michael
  84. Physics

    A cat chases a mouse across a 1.5 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 1.4 m from the edge of the table. 2 The acceleration of gravity is 9.81 m/s . What was the cat’s speed when it slid off

    asked by Michael
  85. math

    Give 5 possible dimensions for the following rectangle with the perimeter given. Perimeter= 12x+20

    asked by m
  86. Algebra

    Out of jar with 100 marbles, 49 are blue marbles, 7 are green marbles, 27 are red marbles and 17 are yellow marbles. What is the probability of drawing a red marble?

    asked by Denver
  87. Chemistry

    Analysis of a compound indicates that it is 49.02% carbon, 2.743% hydrogen, and 48.23% chlorine by mass. A solution is prepared by dissolving 3.150 grams of the compound in 25.00 grams of benzene, C6H6. Benzene has a normal freezing point of 5.50degreeC

    asked by Tracy
  88. Bio

    How do the cellular processes and cellular products of asexual and sexual reproduction compare?

    asked by Anonymous
  89. Math

    Assume the probability is 1/2 that a child born is a girl. If a family has three children, what is the probability that they have a) exactly one girl b) at most two boys?

    asked by Nicole
  90. Statistics

    Quality Progress, February 2005, reports on the results achieved by Bank of American in improving customer satisfaction and customer loyalty by listening to the "voice of the customer". A key measure of customer satisfaction is the response on a scale from

    asked by Janet
  91. Business and Economics

    What are two reasons why the EU have limited exports to China and their effect on trade relationships?

    asked by Lucy
  92. math

    If the probability of an event happening is 1/7, what are the odds against it happening? What is the ratio of the odds against the event?

    asked by Jack
  93. science

    here are some science questions I've been trying to do for over an hour and i just cant figure them out! 1.how does a fan convert energy? 2.what happens to matter during both a physical and chemical change? 3.give an example of a simple closed system 4. in

    asked by Bri
  94. US History

    Abe lincoln was a constitutional dictator who saved the nation at the expense of the constitutional. How can you prove it?

    asked by Lennox
  95. Geometry

    Find the surface area for each of the following Rt. Square Pyramid 6.5cm 2.5cm,2.5cm

    asked by crystal
  96. English

    I did three more corrections myself. Can you see if they are OK? 1)Also the doctor lives and works in a small laboratory and the monster learns the human civilization closed in a small cottage. Correction: The doctor lives and works in a desolate

    asked by Franco
  97. arithmetic

    what is the sum of 5/14 plus 13/14 ???????

    asked by silay
  98. math -fractions

    ordering fractions 1/2,7/8,9/10,1/3,3/5,1/4 write the above fractions in order.

    asked by arjel
  99. Geometry

    The Great Pyramid of Cheops has a square base of 771 sq ft. on a side and a height of 486 ft. How many rooms 35 ft.x20ftx8ft would be needed to have a volume equivalent to that of the Great Pyramid?

    asked by crystal
  100. science

    what is an ecosystem? compare and give examples of open and closed ecosystems

    asked by Anonymous
  101. math geometry ITT

    so i know that when you have an isosceles triangle has 2 equal sides, and the 2 angles created by those sides are also equal . if a question gives me the angle at the top ( which is 40 degrees ), how do i find the 2 equal angles at the bottom ?

    asked by amanda
  102. physics

    A tennis ball is thrown directly upward with an initial speed of 25 m/s. What is its velocity in m/s when it hits the ground?

    asked by Baylee
  103. Geometry

    A theater decides to change the shape of its popcorn container from a rectangular boc to a right regular pyramid, as shown in the following figure, and charge only half as much. If the containers are the same height and the tops are are the same size, is

    asked by crystal
  104. math help!!!!

    a teacher marking an extra credit assignment gave the following marks: 49, 53, 61, 65, 68, 71, 79, 87, 88, 90 what is the z-score corresponding to the lowest mark?

    asked by math help!!!!
  105. Math

    Marty ate 1/4 of his pizza and Luis ate 1/3 of his pizza. Marty ate more pizza than Luis. How is that possible?

    asked by Deborah
  106. geometry

    Two spherical canaloupes of the same kind are sold at a fruit and vegetable stand. The circumference of one is 60 cm and that of the other is 50 cm. The larger melon is 1 1/2 times as expensive as the smaller. Which melon is the better buy and why?

    asked by crystal
  107. math (geometry EAT thereom)

    i understand that in the EAT thereom the sum of the inside angles equal to the outside angle.. in my homework i have to find the angle of a inside angle, and it gives me 2 outside angles that are 130 degrees and 120 degrees, how do i find the inside angle

    asked by student
  108. Spanish

    How would I say Physics in Spanish? Thank you

    asked by LynAnne
  109. math help!!!!

    what is the mean and the standard deviation of the data in the table given? round your answer to 2 decimal places value: 4.8, 5.2, 5.4, 5.9, 6.5, 6.6 frequency: 25, 21, 23, 17, 24, 25

    asked by Anonymous
  110. math geometry

    how do i find the value of x in a triangle when in one angle says 2x, another angle is 3x, and another is just x.

    asked by hillary !
  111. Calculus

    Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y = (x^2 + 1)/(x^2 - 9)

    asked by Jands
  112. Geometry

    how could you define the perimter of a nonsimple closed curve? Give an example of your explaination

    asked by crystal
  113. Calculus

    Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y = (x^3)/(x^2 - 4)

    asked by Jands
  114. Calculus

    Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y= 3[(x-1)^(2/3)] - [(x-1)^2]

    asked by Jands
  115. geometry

    John claimed he had a garden twice as large as Al's retangular-shaped garden that measured 15 ft by 30 ft. When they visited John's rectangular-shaped garden, they found it measured 18 ft. by 50 ft. Al claimed that it could not be twice as large since

    asked by crystal
  116. us history

    what events led to u.s. expansion during 1895-1920?

    asked by Zac
  117. Calculus

    Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y= (x^4) - 8(x^3) + 18(x^2) - 16x + 5

    asked by Jands
  118. physics

    Physics students ride the Power Tower at Cedar Point. The drop only takes 5.53 seconds until the car brakes. What was the height in meters that these brave students dropped? -Thanks

    asked by Baylee
  119. Math

    What number has 6 in tenths place,4 in the ones place,5 in the hundredths place,and 9 in the tens place?help me!

    asked by Lauren
  120. math help!!!!

    determine the sum of the following geometric series. round your answer to 4 decimal places if necessary. a. -1/32+1/16-...+256 b. 50 over sigma n=1 8(.5)^n-2

    asked by Anonymous
  121. math

    find the range of the set of numbers: 185 246 372 801 675 212 and how do you find it?????

    asked by Evelyn
  122. math help!!!!

    what is the mean and the standard deviation of the data in the table given? round your answer to 2 decimal places value: 4.8, 5.2, 5.4, 5.9, 6.5, 6.6 frequency: 25, 21, 23, 17, 24, 25

    asked by Anonymous
  123. math

    find the measures of the angles on a nonagon???? and the formula used to find it

    asked by Katherine
  124. math

    Combine Like Terms!!!! -6z-3z-6x^2 and how did youget the answers???

    asked by Lesly
  125. Trig

    4. Write the equation of the cosine function with an amplitude of 1/3, a period of 2pi, and a phase shift of 3pi/2. 5. Write the equation of the sine function with an amplitude of 4, a period of pi/2, and a phase shift of -pi/4.

    asked by Tabby
  126. math math math math

    a. what is the general term of the following series? 60/121-30/11+15-... +219 615/16 b. how many terms does the series have?

    asked by Anonymous
  127. math

    2x is less than but equal to 3x-3 SOLVE!!!!

    asked by Nicole
  128. math

    125n is greater than but equal to -2 SOLVE!!!!

    asked by Evangleise
  129. math

    7/12m + 2 is less but equal to 16 SOLVE!!!

    asked by Karen
  130. Trig

    2.Graph f(x) = 1/4 cos(1/2 x + pi/2). Find the amplitude, period, and phase shift of the function. 3. Graph f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.

    asked by Tabby
  131. Economics

    Who gets scarce resources in a market economy? A) the government B)whoever is willing and able to pay the price C)whoever wants them D)Whoever the government decides gets them

    asked by Anonymous
  132. Math

    if Jen and Heather went to lunch. Jen discovered that she had only $8.00. Luckily Heather had enough money to pay the other part or 3/5ths of the bill. How much did Heather pay? and How much was the total bill ?

    asked by Ryan
  133. Math

    Gerald and Michelle went on a 24 mile bike ride. By lunchtime they had ridden 5/8ths of the total distance. how many miles did they have left to ride after lunch ?

    asked by Stacy
  134. math

    Combine Like Terms!!!! -6z-3z-6x^2 and how did youget the answers???

    asked by Lesly
  135. Algebra

    Steve is a member of the basketball team. He averages 2 hit for every 5 times at bat. Steve might get a hit his next time at bat. Which of these methods could not best used to stimulate this situation?

    asked by Anonymous
  136. Geometry

    Find the perimeter and area of each figure. give your answers in the simplest radical form.a 30-60-90- degree triangle with hypotenuse length 28 centimeters.

    asked by Esperanza
  137. world history

    The key diplomatic achievement of Bismarck's foreign policy was

    asked by Cynthia
  138. geometry

    A theatre +-decides to change the shape of its popcorn container from a regular box to a right regular pyramid, as shown in the following figure, and charge only half as much. If the containers are the same height and the tops are the same size, is this a

    asked by crystal
  139. Math

    This question HATES ME! Which value would best describes the data? 8, 9, 10, 12, 14, 15, 18, 18, 63. A-mean B-mode C-median D-

    asked by Catherine
  140. PHYSICS HELP ASAP

    a 3 kg block slides down a frictionless plane inclined 20 degrees to the horizontal. If the length of the plane's surface is 1.50m, how much work is done, and by what force? suppose the coefficient of kinetic friction between the block and the plane. What

    asked by mandy
  141. calculus

    F''(x)=x^-3/2 f'(4)=1 f(0)=0 how do I solve this differential equation?

    asked by Chynna
  142. math

    what is symmetry

    asked by Elizabeth
  143. Geometry

    The Great Pyramid of Cheops has a square base of 771 ft. on a side and a height of 486 Ft. how many rooms on a side and a height of 486 ft. How many rooms 35 ftx 20ftx8ft would be needed to have a volume equivalent to that of the Great Pyramid?

    asked by crystal
  144. Geometry

    Andrea claims that if she doubles the length and width of the base of a rectangular prism and triples the height, she has increased the volume by a factor 2*2*3=12. Whar would you tell her?

    asked by crystal
  145. algebra

    The average gas consuption of Angels SUV is 21 miles per gallon. Jeffs car takes 20% less gas to drive the same distance. If Angel and Jeff drove from Sacramento to Phoenix a distance of 570 miles, how many gallons of gas would each need?

    asked by Kirstin
  146. algebra 2

    Factor the following polynomial. 4x^3-24x

    asked by Khola
  147. Trig/Math

    2. f(x) = 1/4 cos(1/2 x + pi/2). Find the amplitude, period, and phase shift of the function. 3. f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.

    asked by Tabby
  148. math

    a man hods a rifle in a horizontal postion 4 feet above the ground and shoots the bullet with an initial velocity of 2000 fps horizontally. it may be assumed that the ground is level, what will be the horizontal distance from the man to the point at which

    asked by nick
  149. Algebra 2

    problem: 4x^3-24x would this be the answer to the problem? 4x(x^2-6)

    asked by Khola
  150. Algebra 2

    problem: 4x^3-24x would this be the answer to the problem? 4x(x^2-6)

    asked by Khola
  151. Algebra 2

    problem: 4x^3-24x would this be the answer to the problem? 4x(x^2-6)

    asked by Khola
  152. math

    wilson has made 8 out of the last 20 free throws he has attempted what is the probiblity that he will make the next free throw??

    asked by naydeyn
  153. math

    wilson has made 8 out of the last 20 free throws he has attempted what is the probiblity that he will make the next free throw??

    asked by naydeyn
  154. physics

    A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

    asked by nerd
  155. chemistry

    the stoichiometric amount between potassium cromate and lead acetate.

    asked by Anonymous
  156. math

    4x27= partial products: product:

    asked by kate
  157. algebra

    How do you get : x=1/3y+2 in the y=mxtb form ?

    asked by Jazmin
  158. math

    Make into one log function: 2logx-log4-log3+logx

    asked by matt
  159. Physics

    A construction worker attempts to lift a uniform beam off the floor and raise it to a vertical position. The beam is 2.50m long and weighs 500N. At a certain instant the worker holds the beam momentarily at rest with one end at distance d=1.50m above the

    asked by Monique
  160. physics

    no answer

    asked by Anonymous
  161. physics

    A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

    asked by nerd
  162. physics

    A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

    asked by nerd
  163. physics

    A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

    asked by nerd
  164. physics

    A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

    asked by nerd
  165. physics

    A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

    asked by nerd
  166. Physics

    a system of 1525 particles, each of which is either an electron or proton, has a net charge of -5.456*10^-17 C. A) How many electrons are in this system? B) What is the mass of this system?

    asked by Anonymous
  167. Algebra

    What is the slope of the line given by 4x = 0 by 5y = 0? How do I solve this?

    asked by Michelle
  168. English

    Had they not imposed their beliefs on the Ibo, Okonkwo would not have been provoked to murder.

    asked by Needs Help
  169. Math

    Perfect square 64/169x^2-225

    asked by Sarah
  170. Trig/Math

    Write the equation of the cosine function with an amplitude of 1, a period of 3pi/7, a phase shift of -pi/5, and a vertical shift of 2 units down.

    asked by Tabby
  171. Biology

    I have a biology worksheet that talks about secondary and primary succesion. I looked it up, and I found that Presque Isle is an example of primary succession. But, what happened there?

    asked by Cammi
  172. Pre-Calc

    Make into one log function: 2logx-log4-log3+logx

    asked by matt
  173. Science

    If someone walks at a constant speed, what does that tell us about the forces on the person?

    asked by Luke
  174. Reading

    Analogies: court : docket :: trip : ? I'm working on a crossword puzzle and it has 9 letters, possibly starting with the letter I

    asked by bryan
  175. math

    a street vendor recored the following hot dog sales for the week 100 on monday, 87 on tuesday, 95 on wednesday, 125 on thursday, 210 on friday, 250, on saturday, and 57 on sunday. what is the mena sales per day

    asked by alisha
  176. health care?business

    How does the process of needs/market assessment result in successful project planning and the development of new approaches to health care?

    asked by april
  177. alisha

    a fire insurance policy has an annual premium of $780. what is the reguar refund if the policy is canceled by the insurance company after five months

    asked by alisha
  178. physic

    all of the following are true about water except that it

    asked by maurice
  179. math

    a sheet wood measures 4 feet by 8 feet. armand wants to build a dog house usingone whole sheet of playwood for the floor. a.armand needs to put a "2 by 4" under the outer edge all the way around the floor, and another "2 by 4" that runs down the middle,

    asked by cindy
  180. Physics

    Beth, a construction worker, attempts to pull a stake out of the ground by pulling on a rope that is attached to the stake. The rope makes an angle of 49 with the horizontal. If Beth exerts a force of 148 N on the rope, what is the magnitude of the upward

    asked by dmj697
  181. physics

    a 35.5kg box slides down an incline plane with a 25 degree angle at a constant rate. how do i calculate the coefficient of friction

    asked by casey
  182. Physics

    A crate is pulled to the right with a force of 85.5 N, to the left with a force of 120.8 N, upward with a force of 652.1 N, and downward with a force of 249.5 N. What is the net external force in the x direction? Answer in units of N. What is the net

    asked by dmj697
  183. Physics

    How many significant digits in the number 500.

    asked by Baylee
  184. physics

    a man is pulling a 100kg crate with a force of 250 newtons. the rope makes a downward angle of 30.0 degrees with the horizontal. if the crate is sliding at a constant rate, calulate the coefficient. ?? how do i do this??

    asked by casey
  185. physics

    a woman is mowing her lawn. she is pushing on the handle with a force of 250 newtons. if the handle is at a 40 degree angle with the horizontal, resolve the vector. ??

    asked by casey
  186. Physics

    A 53 kg student eats a 200 Calorie doughnut. To “burn it off”, he decides to climb the steps of a tall building. (1 food Calorie = 103 Calories.) How high would he have to climb to expend an equivalent amount of work? The accelera- tion of gravity is

    asked by Tori
  187. Physics

    One of the most efficient engines ever built is a coal-fired steam turbine in the Ohio valley, driving an electric generator as it operates between 1870C and 430C. What is itsmaximumtheoretical efficiency?

    asked by Tori
  188. Physics

    The net external force on the propeller of a 3.3 kg model airplane is 6.5 N forward. What is the acceleration of the airplane? Answer in units of m/s2.

    asked by dmj697
  189. Physics

    A 1.9 kg otter starts from rest at the top of a muddy incline 90 cm long and slides down to the bottom in 0.50 s. What net external force acts on the otter along the incline? How do I do this?

    asked by Danielle
  190. math

    josie found a oapir of shoes she wanted prices at $55,but she did not want to pay that much.a few weeks later , the same shoes were marked down to 20% .including the 6% sales tax,how much will she pay if she buys the shoes on sale?

    asked by cindy
  191. Math

    Make into one log function: 2logx-log4-log3+logx

    asked by matt
  192. division

    what is 3796divided by 48

    asked by iormares
  193. Math

    can someone explain this please? Identify whether each graph represents a function. Explain. If the graph dose represent a function is the function linear? the coordinates are (0,5) (1,0) (2,-3) (3.-4)(5,0) (6,5)

    asked by Courtney
  194. Math

    Paul's car is 14 feet long. Paul is making a model of his car that is the actual size. Which proportion should be used to find the length, L, of Paul's model?

    asked by Chris
  195. Physics

    Tarzan (m = 75 kg) tries to cross a river by swinging from a 15.0 m long vine. His speed at the bottom of the swing, just as he clears the water, is 9.0 m/s. What is the total force Tarzan exerts on the vine at that point?

    asked by Joe
  196. Math

    Make into one log function: 2logx-log4-log3+logx

    asked by matt
  197. Math

    What multiplication fact can be found by using the arrays for 2 x 9 and 5 x 9?

    asked by DeLaney
  198. Civics and Economics

    what is the purpose of a fillibuster

    asked by megan
  199. physical sciene

    1) A boy weighs 392 Newtons.What is his mass? 2) A baby weighs 8.0 pounds. What is his mass in slug? 3) An object has a mass of 50 grams. What is its weight in dynes? 4) An object has a mass of 75 grams. What is its weight in newtons?

    asked by Anonymous
  200. com 155

    Describe your experience with credit and credit cards in a brief paragraph using at least five adverbs and five adjectives in your description. Bold the adverbs and underline the adjectives. What is the most effective way to determine whether a word is an

    asked by Misty
  201. social studies

    I need a few things for World Cultures that have to do with legacy of Rome Two examples each. Alphabet, Government, and Architecture. And again that's 2 examples each

    asked by Bell
  202. Math7

    poul has 124.8m of encing to build a rectangular pen. He wants the pen to have the largest possible area. Calculate the length and width of the pen to one decimal place. I don't get it at all

    asked by Komal
  203. physics

    who has a greater mass to weight ration, a person weighing 100N or a person weighing 150N?

    asked by Anonymous
  204. physics

    who has a greater mass to weight ration, a person weighing 100N or a person weighing 150N?

    asked by Anonymous
  205. math

    suny ridge elemantrayschool was collecting ans for a food drive . the first few days of the drive , they collected 103 cans. they collected 5 more cans on the first day than the second day . how many cans did they collected each day? ___first day ___

    asked by cindy
  206. Math fraction division

    11/4 / 11/5

    asked by Anonymous
  207. us history

    a map for the thirteenn original colonies

    asked by name
  208. PreCalc

    Write the following expression as one logarithm: 2logx-log4-log3+logx. Simplify your answer.

    asked by matt
  209. Algebra 1 8th grade

    Can a graph that is in a complete circle possibly have a function

    asked by Courtney
  210. 6 grade math

    Dividing 22/7 / 5

    asked by Aaron
  211. Math

    make up alist of data with the following landmarks 15, 5,10,20

    asked by Mark
  212. math

    Laura is driving to Seattle. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time (in minutes). When graphed, the function gives a line with a slope of -0.75. Laura has 51 miles remaining after 33 minutes of

    asked by kia
  213. Social Studies

    What are 3 names for jewish people? I got: 1. Hebrews 2. Chosen People 3.?

    asked by Chelsea
  214. math

    Explain how you could show five less than a number using an expression?

    asked by Jo
  215. Math7

    A small tectangular box has a width of 18cm and a volume of 720cm. a.)determine the height and the length of the box. b.) is there more than 1 answer? Explain.

    asked by Komal
  216. Math

    a bag contains green, yellow and orange marbles. the ratio of green marbles to yellow marbles is 2:5, the ratio of the yellow marbles to orange is 3:4. what is the ratio of the green marbles to the orange marbles?

    asked by Yvette
  217. Anonymous - re Physics

    I've removed your post because of the unacceptable words and abbreviation in your School Subject line. If you will post with acceptable words, your question will be addressed.

    asked by Writeacher
  218. english

    Hello! My name's Marie,I'm 16 I live in Paris and I'm bad in english,(so sorry for my neglish)I must do a homework and I would like that you correct my mistakes, please... It's your language (mercy) :) I used pictures to tell the story of a slave One June

    asked by marie
  219. math

    give two ways to show dollar to 2.65?

    asked by kevin
  220. math

    if each sphere has a mass of 120 gms,what is the massof a pyramid?

    asked by cindy
  221. Physics

    The velocity of a diver just before hitting the water is -8.7 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.98 s of the dive?

    asked by Anonymous
  222. accounting

    A bond price of $987.50 has a face value of $1000, pays 5% semiannually, and will repay the face value in 15 years. 5% tables Present Values Pv Annuity year 13 .53032 9.39357 year 14 .50507 9.89864 year 15 .48102 10.37966 What is the yeild to maturity of

    asked by Adrian
  223. Math percentages

    I have to compare two amounts given in percent. Last year, 80% of a cafe's sales were coffee; this year only 20% of the cafe's sales are coffee. How much has the percent of coffee sales changed over the past year. Is the answer simply down by 60% or is it

    asked by KC
  224. Algebra 2

    10x+ (x^2) = 42

    asked by Chris
  225. Trig

    f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.

    asked by Tabby
  226. Math

    solve log(b4)x-log(b4)2=2 (b4)=base 4

    asked by ash
  227. Arithmetic/Math

    Sarah uses balsa wood to build airplane models. After completing a model, she had a strip of balsa wood measuring 7/8 of a yard left over. Shawn the Weirdo wants to buy half of the strip from Sarah. If Sarah paid $2.00 for each yard, how much should she

    asked by Eheheheheheh... Help?! :(
  228. math

    is the - square rout of 30 rational, irrational, or real?

    asked by kaykay
  229. chemistry

    Sulfuric was titrated with NaOH solution. 208 mL of .250 M NaOH solution was needed to completely neutralize 65.0 mL of H2SO4. What is the concentration of the sulfuric acid solution?

    asked by Trent
  230. business

    Your manager has asked that you reach out to three senior leaders in the organization to build a better understanding of their needs so that your department can better align themselves with these executives’ and build partnerships for new work. Where

    asked by Dave
  231. Math

    A small tectangular box has a width of 18cm and a volume of 720cm. a.)determine the height and the length of the box. b.) is there more than 1 answer? Explain

    asked by Arushi HELP:(
  232. 6th grade math

    You have 15 yards of ribbon for your gift boxes. Each box gets the same amount of ribbon. How much ribbon will each of your 20 gift boxes get?

    asked by Isaiah
  233. physics

    What is the net force on a Mercedes convertible traveling along a straight road at a steady speed of 100km/h?

    asked by sunju
  234. science

    What are examples of inclined planes in the kitchen?

    asked by danny123
  235. 5th math

    jim can pack a bag of groceries in 6 seconds how many can be packed in 15min solve as a fraction division problem to answer the question? Would it be 25?

    asked by jill
  236. 4th grade math

    My daughter has an in put out put rule chart in put put 1out put 4,input6 output7 and so on what do they want her to do?

    asked by Anonymous
  237. math

    Can the expression (r-3)(s+2) be simplified without knowing the values of r and s?

    asked by Jack
  238. drama

    what is it about drama that is appealing to peopleÉ

    asked by ted
  239. MATH HELP

    The south edmonton pet shop has several parrots and dogs for sale. There are a total of 24 heads and 82 legs in the display cages. A) Write a system of linear equations to represent the number of parrots, p, and the number of dogs, d, for sale. p+d = 24

    asked by Anonymous
  240. math

    Round 0.8394263 to the nearest hunderd-thousandth. Is this correct 0.83943 Round the number 43,678.426785 to the nearest ten thousand. Is this correct 43,678.4268

    asked by Judy
  241. Math

    A pear contains 30 calories more than an apple. Ten apples have as many calories as seven pears. Find the number of calories in an apple and in a pear.

    asked by Bennett
  242. english

    Hi! I'm a French-speaking student and I don't understand what is "abatement work". Can you explain that to me in English, please? Thanks.

    asked by green_heart
  243. Geometry

    In a triangle labeled ABC with the following coordinates A(-3,2) B (0,4) C (2,-1) What is the image of each vertex? Give answer as an ordered pair.

    asked by Sue
  244. science

    is a dishwasher a wheel and axle

    asked by danny123
  245. 5th math

    1/8 = 12 1/5 % what % is 3/8 = to ? would it be 37 1/2 %

    asked by jill
  246. Physics-Help, confused!

    A .20 kg ball is attached to a vertical spring. The spring constant is 28 N/m. The ball is supported initially so that the spring is neither stretched or compressed, is released from rest. How far does the ball fall before brought to a momentary stop by

    asked by Jennifer
  247. 3rd math

    The commutative, or order, property applies to which operations? A. Add & Multiply B. Subtract & Mutiply C. Add & Subtract D. Mutiply (we chose A - is this correct?)

    asked by Anonymous
  248. 6th grade Ariththmetic/Math

    Janine is having seven friends over for breakfast. Of the eight people who will eating breakfast, six like orange juice bestm and two prefer grapefruit juice. Both kinds of juice cost $2.89 for a gallon, $2.09 for a quart, and $1.29 for a pint. How many of

    asked by Umm... Help?! :]
  249. integrated math

    Solve 210 = 6b + y for y .

    asked by gabby
  250. Finding Job

    Gradually retiring by working fewer hours: Phaed retirement Work Sharing leave time shift work would it be phased retirement

    asked by Anonymous
  251. math

    wat is -1.0625 as a fraction

    asked by sam
  252. Finding Job

    cold calling is best to do first, and if there is a possible job, then research the company true or false

    asked by Anonymous
  253. Finding Job

    gratest way to find a job is to look in newspaper i think this would be true

    asked by Anonymous
  254. SOCIAL STUDIES

    LLGODSTA AIGODNMN UNILSIAN AHINAINDIC

    asked by MICKAYLA
  255. English

    does lady macbeth knows macbeth ambition before he killed king duncan?

    asked by Anonymous
  256. Finance

    When Samuel Pepys, the British diarist, lent his friend Lady Sandwich £100 in 1668, he charged her 6 percent interest. If the loan was due at the end of 1 year, how much would Lady Sandwich have had to pay if interest was (a) compounded annually, (b)

    asked by Bryan
  257. space

    the pull of gravity between earth and the sun acts across how many kilometers of space.

    asked by anisyn
  258. Math

    How do I work this math prob. I always have a B and would like to bring it up. Caan you PLEASE help me with this prob. on unit rates "$2 for 5 cans of tomato soup"

    asked by Sarah
  259. Business finance

    In a discount interest loan, you pay the interest payment up front. For example, if a 1-year loan is stated as $10,000 and the interest rate is 10 percent, the borrower “pays” 0.10 x $10,000 = $1,000 immediately, thereby receiving net funds of $9,000

    asked by Bryan
  260. Calculus

    The rate of change R, in kilometers per hour, of the altitude of a hot air balloon is given by R(t)=t^3-4t^2+6 for time on the interval [0,4], where t is measured in hours. Assume the balloon is on ground level. What is the maximum altitude of the balloon

    asked by Joe Schmo
  261. Math

    Two round fountains are similar. One measures 7'6" across and the other measures 14'11" across. Find the scale factor from the small one to the large one.

    asked by Nicole
  262. chem. molarity

    find the molarity of bezene given the denisty of .8989 g/l and the boiling temp is 80.2 C and Kb= 2.53C kg/mol

    asked by tori
  263. Algebra

    Two cities are 5 1/2 inches apart on a map. The actual distance between the cities is 66 miles. What scale was used to draw the map?

    asked by Sasha
  264. Physics Help!

    A 1 kg object is located at a distance of 1.7 x 10^6 m fom center of a larger object whose mass is 7.4 x 10^22 kg. a. What is the size of the force acting on the smalle object? b. What is the size of the force acting on the larger object? c. What is the

    asked by Sarah
  265. Literature

    According to the map,Tony' farm is just ahead. Is this an adverb phrase

    asked by Karla
  266. Grammar

    Write each pronoun, and write whether it is a subject pronoun or and object pronoun. 1. Gwendolyn Brooks write poems; they are about everyday life. They, Subject 2. Slang and the rhythms of jazz and the blues are important to her. Her, Object 3. She was

    asked by Tiffany Jade
  267. math

    Sam invested $5000 in a GIC earning 8% compound interest per year. The interest gets added to the amount invested, so the next year Sam gets interest on the interest already earned as well as on the original amount. How much will Sam's investment be worth

    asked by Taylor
  268. math

    write 3 different ones numbers you could add to 15 without needing to regroup

    asked by mary
  269. math

    write 3 different ones numbers you could add to 15 where you need to regroup to find the sum

    asked by mary
  270. Physics

    A frictionless roller coaster is given an ini- andros (saa2652) – Energy II – dewey – (339113) 2 tial velocity of v0 at height h = 13 m . The radius of curvature of the track at point A is R = 39 m.

    asked by Sara
  271. Physics

    How do you determine the force constant of a spring when given the mass of an object being hung vertically, and the distance the spring stretches? What formula and logic do I need?

    asked by Jon
  272. physics

    A constant net force of 390 N is applied upward to a stone that weighs 31 N. The upward force is applied through a distance of 2.0 m, and the stone is then released. To what height, from the point of release, will the stone rise? Assume that air resistance

    asked by Kay
  273. physics

    A construction worker attempts to lift a uniform beam off the floor and raise it to a vertical position. The beam is 2.50m long and weighs 500N. At a certain instant the worker holds the beam momentarily at rest with one end at distance d=1.50m above the

    asked by Ngoc
  274. chemistry

    Consider the 2-step reaction mechanism fast 2NO + H2 $ N2O+H2O slow N2O+H2 ! N2+H2O net 2NO + 2H2 ! N2 + 2H2O Which of the following rate laws is cor- rect for the given mechanism? Note that the constant k may represent a combination of elementary reaction

    asked by Anonymous
  275. chemistry

    Consider the 2-step reaction mechanism fast 2NO + H2 $ N2O+H2O slow N2O+H2 ! N2+H2O net 2NO + 2H2 ! N2 + 2H2O Which of the following rate laws is cor- rect for the given mechanism? Note that the constant k may represent a combination of elementary reaction

    asked by Anonymous
  276. statistics

    For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size 3

    asked by melissa
  277. math

    write a fraction greater than 1 for 5/8

    asked by jean
  278. trigonometry.

    In a right triangle sinA= 3/5 and C=17. Find a and b. Be sure to draw a right triangle and letter it properly. how can i solve the math in this problem. i know i would have to use the Pythagoream Theorem but i don't know how to set the problem up first.

    asked by anon
  279. physics

    a 10.0-g object moving to the right at 20.0 cm/s makes a elastic head-on collision with a 15-g object moving in the opposite direction at 30.0 cm/s find the velocity of each object after the collision.

    asked by Lily
  280. math

    in the lincon school 1/6 of the students are on the track team and 1/4 of the student are on the tennis team.no students play on both team.what fraction of the students are on the two teams altogether

    asked by gfghbh
  281. math

    two terms of an arithmetic sequence are 15 and 45. Create three different arithmetic sequences given these terms

    asked by Anonymous
  282. math

    49

    asked by anne
  283. Arithmetic/Math

    While traveling in Mexico, Samantha found some beautiful ceramic tiles. The tiles are squares,6.5 inches on each side. Samantha wants to buy enough tiles to cover the floor of her sun room. The sun room is also a square, 108 inches on each side.How many

    asked by Kiyoshi Kasume(Help?)
  284. math

    49

    asked by anne
  285. History

    Define physical region and give 3 examples

    asked by Taylor
  286. arithmetic

    The magazine wants to make $160 each page of advertising sold. What might the magazine charge for each size ad if ads can be any of the following sizes: 1/32, 1/16,1/8, 1/4, 1/2, or a whole page? Explain your reasoning.

    asked by Kiyoshi Kasume(Help?)
  287. Math

    In a 3 x 4 dot rectangle there are 10 dots on the outside and 2 dots on the inside.In a 4 x 5 dot rectangle there are 14 dots on the outside and 6 dots on the inside.How may dots are outside in a 1989 x 1990 dot rectangle?

    asked by Bindu
  288. math

    what fraction of a dollar is a nickel in simplest form?

    asked by Laura
  289. geometry

    If BC = 2x + 1, CD = 3x - 4 and BD = 22, find the value of x.

    asked by Ashley
  290. History

    what was the Freedonian Rebellion?

    asked by Taylor
  291. math

    Find all the ordered pairs of integers such that x^2 - y^2 = 140 Any help or explanations would be wonderful!

    asked by daphne
  292. math

    What number is 30 more than 432

    asked by Anonymous
  293. Math 3

    What is the rule for this function? Input 1, 6, 4, 7, 12 Output 4, 7, 9, 12, 17

    asked by Nia
  294. Arithmetic

    Janine is having seven friends over for breaksfast. Of the eight people who will be eating breakfast, six like orange juice best, and two prefer grapefruit juice. Both kinds of juice cost $2.89 for half gallon, $2.09 for a quart(1/4 of a gallon), and $1.29

    asked by Kiyoshi Kasume(Help?)
  295. grammar

    3. This author wrote (the stories) at age nineteen. (it) 10. She wrote stories about (her experiences). (it) is 3 them and 10 is it also them

    asked by Tiffany Jade
  296. 6th grade math

    The fans were depressed, for their team had won only 15 of the first 60 games. What was the team's win loss ratio after 60 games? Is it 15:45. I am not sure if the words first and after change the calculation

    asked by lynn
  297. science

    3 forces act concurrently on an object. First force acts 75 N north. 2nd acts 100 N east. 3rd acts 89 N at 15 degrees south of west. What is resultant force? b) what is equilibrant?

    asked by anonymous
  298. science

    table is lifted to backpack starts to slide off. If table makes a 21 degree angle with floor, what is coefficient of static friction between backpack and the table?

    asked by anonymous
  299. physics

    what is tangential velocity of the earth as it travels in its orbit around the sun?

    asked by Rob
  300. physics

    A pelican flying along a horizontal path drops a fish from a height of 5.0 m. The fish travels 8.5 m horizontally before it hits the water below. The acceleration of gravity is 9.81 m/s2 . a) What was the pelican’s initial speed? Answer in units of m/s

    asked by annn
  301. AP Calc AB

    how do you use rules for integrals? in general, but I'm just looking for examples if possible...this is pretty new so I don't have a very good understanding yet. thanks.

    asked by benches
  302. math

    a triangle with side lengths 26, 28, and 30 is constructed so that the longest and shortest sides are tangent to a circle. the third side passes throught the center of the circle. compute the radius of the circle

    asked by LULU
  303. math

    a dog is tied to a leash that is hooked to the outside corner of a barn that measures 12 x 20 feet. the length of the leash is 16 feet. what is the maximum are in which the dog can wander?

    asked by LULU
  304. physics

    You pick up a charge of one micro-Coulomb while walking over carpet, how many electrons were transferred? (Order of magnitude only) TRUE OR FALSE: If a third charge is released in the middle between the two positive charges, independent of the magnitude of

    asked by Jaden
  305. spanish

    how do you unscramble these spanish sentences! please help! -tu no hsa tisvo dana -xale se le eyr de al ciadud deny -tamry edase ri a al njgaul -laxe se puhca le doed -sol fosass namsel to a sol leresmu

    asked by Mackenzie
  306. physics

    on a planet whose mass is twice that of earth and whose radius is same, with what acceleration will a body fall at sea level?

    asked by Rob
  307. physics

    a metal wire 1.0 mm in diameter and 2.0 m long hangs vertically with a 5.0 kg mass suspended from it. if the wire stretches 1.2 mm under the tension, what is the value of the young's modulus for metal?

    asked by pat
  308. Chemistry

    Mass of flask = 81.39g Mass of flask and water = 104.26g Mass of flask ,water,and solute =129.53 Mass of solute= 25.27g Boiling point of water =98.7C Boiling point of solution =109.5C Calculate the molecular weight of the solute using the data. M=Kb*r

    asked by Tim