Questions Asked on
November 5, 2011

  1. geography

    Which of the following is FALSE about population growth? a. It causes the economy to shrink. b. It causes the economy to grow. c. It can result from improved nutrition and basic health. d. Europe is experiencing it at a lessened rate.

    asked by lola
  2. geography

    True or false: Migration doesn’t really affect population—it’s just a shifting of people from one place to another.

    asked by lola
  3. Physics

    A boat heads directly across a river with a velocity of 12 m/s. If the river flows at 6.0 m/s find the magnitude and direction (with respect to the shore) of the boat's resultant velocity.

    asked by John
  4. chemistry

    How many moles of molecules are in 252 g of hydrogen nitrate (HNO3)? Answer in units of mol

    asked by lynn
  5. English

    Base all answers on this passage They Flee from Me --Sir Thomas Wyatt They flee from me, that sometime did me seek With naked foot stalking in my chamber. I have seen them gentle, tame, and meek That are now wild, and do not remember That sometime they put

    asked by Anonymous
  6. chemistry

    an aqueous solution containing 17.5g of an unknown molecular(nonelectrolyte) compound in 100.0g of water has a freezing point of 1.8 degress C. calculate the molar mass of the unknown compound

    asked by Monique
  7. Physics

    Problem 19.33 Two light bulbs are 1.0 m apart. Part A - From what distance can these light bulbs be marginally resolved by a small telescope with a 3.0cm -diameter objective lens? Assume that the lens is limited only by diffraction and wavelenght = 600nm .

    asked by Paige
  8. Calculus

    A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 30ft, find the dimensions of the window so that the greatest possible

    asked by Anonymous
  9. Math

    Mrs Li bought some oranges. She gave 1/2 of them to her sister, 1/4 of the remainder to her neighbour, 3/5 of those left to her children and had 6 left in the end. How many oranges did Mrs Li buy? Explain your workings

    asked by Ruby
  10. Stastics

    A doctor at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select if she desires to be 98% confident that the true mean is within 2 ounces of the sample mean? The standard deviation of the birth

    asked by WEB
  11. physics

    A 1000kg automobile is moving along a straight highway at 10m/s. another car with mass 2000kg and moving with a velocity in the same direction 20m/s at 30m ahead of the first. find the momentum

    asked by Anonymous
  12. grammar

    Parts of speech, The patient was brought 1 to the operating room and2 Bier block anesthesia3 was performed. 1 was brough= verb 2 and= conjunction 3 anesthesia= adjective Are my answers right?

    asked by Theresa
  13. Physics

    15. [1pt] A thin hoop of radius r = 0.59 m and mass M = 9.2 kg rolls without slipping across a horizontal floor with a velocity v = 3.3 m/s. It then rolls up an incline with an angle of inclination θ = 31°. What is the maximum height h reached by the

    asked by Morgan
  14. math

    If log (base b) 3 = 1.099 and log (base b) 6 = 1.792, find log (base b) 18 = ???

    asked by Nilan
  15. Math 111

    Find a 4 degree polynomial having zeros -6,-3,2 and 6 and the coefficient of x^4 equal 1 The "coefficient of x^4 equal 1" is really throwing me off. Thanks.

    asked by Joey
  16. Physics

    At a particular instant, a stationary observer on the ground sees a package falling from a moving airplane with a speed vobserver at an angle θ to the vertical. To the pilot flying horizontally at a constant speed relative to the ground the package

    asked by John
  17. Chemistry

    Propane, C3H8, is a common fuel gas. Use the following to calculate the grams of propane you would need to provide 369 kJ of heat. C3H8 (g) + 5O2 (g) --> 3CO2 (g)+ 4H2O (g) ; Delta H = -2043kJ

    asked by Anonymous
  18. Economics

    The handmade snuffbox industry is composed of 100 identical firms, each having short – run total costs given by STC = 0.5q2 + 10q + 5 and short – run marginal costs by SMC = q + 10 where q is the output of snuffboxes per day. a) What is the short

    asked by Pravinesh
  19. geography

    To maintain the current population density, which of the following must occur? a. The death rate must be higher than the birth rate. b. The birth rate must be higher than the death rate. c. The birth rate and death rate must stay the same with migration at

    asked by lola
  20. ap european history

    How did Johannes Kepler's Astronomia pars Optica illustrate the spirit of Scientific Revolution? What is the spirit of Scientific Revolutiokn?

    asked by Clarice
  21. government

    Using the Internet, encyclopedia, and/other reference material for research, write a 1,000-word report on feudalism in the history in one of the following countries: •France •England •Germany Include the approximate years when feudalism began and

    asked by mindy
  22. math

    A car-rental agency charges $38 per day plus $0.21 for each mile driven. Sandra paid $88.40 for renting a car from them for one day. Write an equation to find the number of miles she drove that day.

    asked by Anonymous
  23. Organic chemistry

    draw the alkyne formed when 3,4-dichloroheptane is treated with an excess of a strong base such as sodium amide. I got CH3CH3C(triple bond)CCH2CH3 but was told it was the wrong answer.

    asked by Jay
  24. chemistry

    What percent of the original sample of strontium-90 (half-life = 28.9 years) will remain after the following time periods?after 18 years? after 47.5 years? after 1008 years?

    asked by Anonymous
  25. Introduction to Psychology

    Joaquin has been assigned a primary research project in his psychology class. He is to observe student behavior during a learning task andattempt to for a(an) ________. In order to do this, he must be able to describe principlesand events, and how they may

    asked by Carol
  26. Chemistry

    What is the Lewis structure of the Pb2+ion?

    asked by Andrinna
  27. Physics

    In an Atwood machine, one block has a mass of M1 = 520 g and the other has a mass of M2 = 320 g. The frictionless pulley has a radius of 4.6 cm. When released from rest, the heavier block moves down 51 cm in 1.00 s (no slippage). What is the tension T1?

    asked by Morgan
  28. Economics

    Ross Perot added his memorable “insight” to the debate over the North American Free Trade Agreement (NAFTA) when he warned that passage of NAFTA would create a “giant sucking sound” as U. S. employers shipped jobs to Mexico, where wages are lower

    asked by GG
  29. unscramble words

    Please unscramble these words for me. SATLEIVER LMWYAFREO

    asked by Arnie
  30. physics

    Hello can you please help me with this investigation. I am having lots of problems with it can you please help. Thandeka wanted to investigate whether the number of vibrations per second depended on the length of the pendulum string. She sat up the

    asked by kyle
  31. Grammar- Complete Sentences

    Although the abscess was incised and drained in the emergency room and cultures were obtained, which grew coag-positive staphylococcus. A This is a run-on that needs a semicolon after time. B This is a run-on that needs to be split into two separate

    asked by Theresa
  32. Spanish-9th grade

    Could you please check if I read and answered the questions correctly? My answers are below in the separate area after the questions. Thank you No vivo en una ciudad. Vivo en el campo. La vida en el campo es muy divertida. Me divierto mucho con los

    asked by Sheila
  33. Calculus

    Find the slope of the tangent line to the curve 2sin(x) + 6cos(y) - 6sin(x)cos(y) + x = 3pi at the point (3pi, 7pi/2) Thank you very much for your help.

    asked by Jake UCD 11/5/11
  34. Grade 11 U math

    A 135-kg steer gains 3.5kg/day and costs 80 cents/day to keep. The market price for beef cattle is $1.65/kg, but the price falls by 1 cent/day. When should the steer be sold to maximize profit? Revenue= (Price/units)(#of units) Cost=(cost/unit)(# of units)

    asked by Jamie
  35. statistics

    3. The mean volume of draught beer served in pint glasses in a particular pub is known to be 0.564 litres. A consumer organization takes a random sample of 64 pints of draught beer and finds that the standard deviation of this sample is 0.025 litres. What

    asked by najma
  36. chemistry

    What is the boiling point of an aqueous solution that freezes at -6.7 degress C. Please help.

    asked by swtnblk
  37. Physics

    In an Atwood machine, one block has a mass of M1 = 520 g and the other has a mass of M2 = 320 g. The frictionless pulley has a radius of 4.6 cm. When released from rest, the heavier block moves down 51 cm in 1.00 s (no slippage). What is the tension T1?

    asked by Spencer
  38. calculous

    3.Given the function f defined by f(x)=2x^3-3x^2-12x+20 a.Find the zeros of f b.Write an equation of the line perpendicular to the graph of f at x = 0 c. Find the x and y coordinates of all points on the graph of f where the line tangent to the graph is

    asked by Yoona
  39. chemistry

    pleast help me work this prob lead is a toxic meatal that affects the central nervous system. a Pb-contaminated water sample contains 0.0011% Pb by mass. What vilume of the water in milliliters contains 115g of Pb? (assume that the density of the solution

    asked by swtnblk
  40. english

    Please can you give me some feedback and any advice on how to improve my argument essay on the topic "Zoos are important places" Also if you have any further ideas I could include. Many thanks for you help. By 2050, 30% of the world’s wildlife will have

    asked by Sam
  41. business

    Suppose the Internal Revenue Service is studying the category of charitable contributions. A sample of 26 returns is selected from young couples between the ages of 20 and 35 who had an adjusted gross income of more than $100,000. Of these 26 returns 6 had

    asked by Anonymous
  42. Chemistry 1

    How many calories are absorbed when 150g of ice at O is changed to liquid water at 45C?

    asked by Diane
  43. pschology

    An article published in the "New York Times" reported the results of a large-scale study on homework for elementary school children. The study indicated that the lowest-achieving students spent more time on homework than children !@#$%^&ceived higher

    asked by brandy
  44. math(fractions)

    7/15+(-5/6)write in simplest form

    asked by TYYYY
  45. Chemistry

    In the reaction between aluminum and hydrochloric acid, how many moles of hydrogen gas would be liberated when 3.612E-2 grams of aluminum are treated with excess hydrochloric acid? Moles of hydrogen gas liberated = mol The atmospheric pressure was measured

    asked by Carrie
  46. Chemistry

    Calculate the energy involved in the transition of an electron in the hydrogen atom from level 5 to level 2. Use the energy to calculate the wavelength of electromagnetic radiation emitted. However, do not change the fractions to lowest common denominator.

    asked by Anonymous
  47. chemistry

    An ethylene glycol solution is mad using 58.5g of (C2H6O2) and diluting to a total volume of 500.0 mL. Calculate the freezing and boiling point. Assume a density of 1.09 g/ml for the solution

    asked by Monique
  48. American History

    In the election of 1912, Teddy Roosevelt's Bull Moose Party platform was built around what he called the?

    asked by Star
  49. MGT 437

    Which one of the following is not a project risk? a)Political Risk b) Department Risk c) Technical Risk d) Schedule Risk e) Production Risk

    asked by Joe
  50. business communication

    effective openers to a sales letter may include all of the following except: a. a series of questions that intrigues the reader and gets her thinking. b. a starting statement that captures the reader's attention. c. a direct suggestion that the reader

    asked by pat
  51. economics

    A linear trend equation for sale of the form Qt = a + bt was estimated for the period 1993-2007 (i.e. t=1993, 1994, 2007) The results of the regression are as follow: Dependent variable : Qt, R-Square, F-ratio, P-Value on F Observations : 15, 0.6602,

    asked by Miss Cheong
  52. Math

    Two hoses are connected to a swimming pool. Working together, they can fill the pool in 4 hr. The larger hose, working alone, can fill the pool in 6 hr less time than the smaller one. How long would it take the smaller one, woking alone, to fill the pool?

    asked by Skylar
  53. chemistry

    What mass of CO2 can be absorbed by 36 g of LiOH?

    asked by Anonymous
  54. Chemistry

    how many grams of hydrogen make up 3.5 moles of glucose C6H6O6? a 1.7g b 3.5g c21.0g d 101.5g

    asked by Anonymous
  55. math

    Eric is twice as old as his brother Lucas. If 4 is subtracted from Eric's age and 4 is added to Lucas's age, their ages will be equal. What are the boys' ages now?

    asked by Anonymous
  56. Physics

    A uniform 2.0 kg cylinder can rotate about an axis through its center at O. The forces applied are: F1 = 5.70 N, F2 = 3.90 N, F3 = 4.30 N, and F4 = 7.00 N. Also, R1 = 12.8 cm and R3 = 4.50 cm. Find the angular acceleration of the cylinder.

    asked by Morgan
  57. music

    #26 Dikrayati #12 John Howatt #25 Mozart, Piano Sonata in A Major, No. 11 (K.331). (Use the Theme and first Variation only. Note that the first Variation has sounds of Turkish March Music. The first Variation ends when a rumbling bass stops at a cadence.

    asked by Nina
  58. Biochemistry

    The malate dehydrogenase reaction, written in the direction as it occurs in the citric acid cycle is: malate + NAD+ → oxaloacetate + NADH + H+ ΔG˚' = +7.1 kcal/mol Calculate the Keq and ΔG (in kcal/mol) for this reaction at the physiologic

    asked by Jenna
  59. statistics

    2. A pub offers a '10 oz Steak Special'. If the steaks they use for these meals have uncooked weights that are normally distributed with a mean of 9.8 ounces and a standard deviation of 0.5 ounces, what is the probability that a customer will get: I) A

    asked by najma
  60. math - functions

    I compute (109/3)^1/4 and store that value in A. Store 3 in P. Now compute f(7)= Pa^7 by typing: P x A x^y 7 ***My problem is that I don't know WHERE the x^y key is on a TI -83 Plus. Please help. Then I have to subtract this answer from the answer using a

    asked by x^y key
  61. Physics

    the tension in a string from which a 6.5 kg box is suspended in an elevator is equal to 52 N. what would be the magnitude of acceleration of the elevator if acceleration of gravity is 9.8 m/s?? would the direction be downward or upward??

    asked by Joey
  62. Algebra II

    Could someone please check these. For ellipse: (x-2)^2/49 + (y+1)^2/25 = 1 1.What is the major axis in equation form of this ellipse? The major axis is the x axis, so if the major axis is horizontal, the equation is based off the minor axis so the answer

    asked by Tonya
  63. Social studies

    What stands on a hill called acropolis in for 2500 years in Greece

    asked by Chris
  64. chem 101

    it takes a certain gas 1.98 times as long to diffuse as an equal volume of helium under the same conditions. what is the calculated molecular weight of the gas?

    asked by Anonymous
  65. accounting

    Three different companies each purchased a machine on January 1, 2012, for $54,000. Each machine was expected to last five years or 200,000 hours. Salvage value was estimated to be $4000. All three machines were operated for 50,000 hours in 2012, 55,000

    asked by tonia
  66. math

    Answer the following questions for the function f(x)=sin^2(x/5) defined on the interval .(-15.507923,3.82699075) Rememer that you can enter "pi" for as part of your answer. a.what is f(x) concave down on the region B. A global minimum for this function

    asked by li
  67. Algebra 2

    The perimeter of a rectangle is 122m. The length of the rectangle is 11m less than 5 times the width. Find the dimensions of the rectangle.

    asked by John
  68. calculus

    An oil can is to have a volume 1000in^3 and is to be shaped like a sylinder with a flat bottom but capped by a hemisphere. Neglect the thickness of the material of the can and find the dimensions that will minimize the total amount of material needed to

    asked by Barbara
  69. Economics

    Thomas Malthus’s gloomy predictions for the future of humanity led ‘economies’ to be called a ‘dismal science’. Show either through the mathematics of production functions or intuitively, that predictions of such gloom may have been misplaced.

    asked by Pravinesh
  70. Science-Biology

    To note: all three are blond, ellie's eyes are brown, her brothers are blue. Ellie's father is homozygous for eye colour but her mother is heterozygous. She passed a 'blue eye' gene to the boys and a 'brown eye' gene to Ellie. Brown hair is dominant over

    asked by Ruth
  71. accounting

    Alpine Bicycle Company manufactures mountain bikes. The following data for May of the current year are available: Use the minus sign to enter favorable variances as negative numbers. a. Determine the direct labor rate variance and direct labor time

    asked by Anonymous
  72. Organic Chemistry

    What is the name of this alkene CH3-CH2-CH-CH=C-CH3 | | BR CH2CH3

    asked by Jay
  73. chemistry repost

    What is the boiling point of an aqueous solution that freezes at -6.7 degress C. Please help. I feel retarded because it seems like its something real easy but Im still not getting it. I did 100 + 6.7 and got 100.67 and are you sayin to divide 1.86 by .52

    asked by swtnblk
  74. IntroductiontoPsychology

    According to Howard Gardner independent intelligence: (a) originates at a single site in the brain (b) comes for a differentsystemin the brain (c) originates inthe limbic system (d) has connections with the hippocampus I have the answer as B

    asked by Carol
  75. statistics

    4. A large company insists that all job applicants who are invited for an interview take a psychometric test. The results of these tests follow a normal distribution with a mean of 61% and a standard deviation of 7.2%. a) What proportion of applicants

    asked by victor
  76. science

    a small light source located 1m in front of a 1m2 opening illuminates a wall behind. If the wall is 1m behind the opening 2m from the light source.

    asked by adam
  77. Wonders of the world (new and ancient)

    I need a map of the seven wonders of the new world and the ancient world which are: Great Wall of China, Great Pyramid of Giza, Egypt Petra, Jordan Hanging Gardens of Babylon, Iraq Christ Redeemer, Brazil Statue of Zeus, Olympia, Greece Chichen Itza,

    asked by Anonymous
  78. chemistry

    what is the boiling point of an aqueous solution that freezes at -67 degrees C? I was given this answer What is 100+6.7 (1.86/.52) ? so 100+6.7 = 106.7 1.86/.52 = 3.58 is the .52 the Kb I got the answer in the book I just don't understand how they got to

    asked by swtnblk
  79. statistics

    According to a bank, the time taken by its customers to use cash dispensing machines is normally distributed with a mean of 18 seconds and a standard deviation of 3 seconds. I) What is the probability that a customer selected at random takes less than 13

    asked by victor
  80. physics

    A child runs down his driveway with an initial speed of 3.0 m/s for 4.5 s, and then uniformly decreases his speed to 0.0 m/s in 2.5 s. What is the boy’s acceleration during the second part of his motion?

    asked by jasmine
  81. Simple interest

    Find the interest. Round to the nearest cent in necessary. Principal - $178 Rate - 4% Time in months - 12

    asked by Alex L.
  82. Chemistry

    Calculate the wavelength of broadcast waves. Calculate the energy associated with the broadcast frequency for WPHT, 1210 kHz.

    asked by Anonymous
  83. math

    a rectangular table measures 3/5 of a meter long by 1/7 of a meter wide. what is the area

    asked by dee
  84. Genectics

    What are the possible genotypes of a woman who has normal color vision?

    asked by Lisa
  85. math

    find the sum of the integers between 2 and 100 which are divisible by 3

    asked by vincecarl
  86. Calculus

    Find f'(x) if f(x) = ln((8x+4)/(9x-7))^(1/2) Thank you very much for your time.

    asked by Jake UCD 11/5/11
  87. Differential Equations

    Question 1 A particle moves on the x-axis with an acceleration , a=(6t-4)ms^-2 . Find the position and velocity of the particle at t=3 , if the particle is at origin and has a velocity of 10ms^-1 when t=0 by using either the method of undetermined

    asked by mrexp21
  88. Chemistry

    Please help, thanks! what exactly are the formulae these functional groups? carboxylic carboxylate caboxyl carbonyl

    asked by Hailey
  89. Mathematics

    How can the number 39 be divided into two parts in order that the sum of 2/3 of one part and 3/4 of the other part is 28? Explain your workings

    asked by Jana
  90. accounting

    Guard Dog Company recently changed its system of internal control over cash disbursements. The system includes the following features. Instead of being unnumbered and manually prepared, all checks must now be prenumbered and written by using the new

    asked by Anonymous
  91. Speech

    I have to do a persuasive speech with a powerpoint but I don't have a clue on what to write about. Can someone help me please Thank you

    asked by Anonymous
  92. statistics

    90% confidence interval for ì turns out to be (150, 250). Based on the interval, do you believe the average is equal to 260? A) Yes, and I am 90% sure of it. B) Yes, and I am 100% sure of it. C) No, and I am 100% sure of it. D) No, and I am 90% sure of

    asked by JSE
  93. Organic chemistry


    asked by Jayde
  94. Math

    A wooden block that is a rectangular prism is 12 inches long. Melinda cuts the wooden block along its length into 4 cubes. How long is each side of the cube?

    asked by Jeany
  95. Health Sciences

    i need interesting topics for a presentation for (English for Medical Sciences) !! topics like diseases or anything .. please reply ASAP

    asked by lucy
  96. English Grade 10

    How can I improve my thesis for a comparative essay: Although both ¡°All is Calm¡± and ¡°The Bicycle¡± portray love and problems between family members, the protagonists in the stories experience drastically different journeys and each learned

    asked by Stella
  97. statistics

    Identify why this assigbment if probabilities cannot be legitimite: P(A)=0.4, P(B)=0.3, P(AandB)= 0.5

    asked by yvonne
  98. Introduction to Psychology

    Ms. Sue, I meant to say hypothesis for the question that starts with Joaquin has been assigned a primary research

    asked by Carol
  99. Introductin to Psychology

    Alyssa's family had moved in the middle of her junior year in high school. At her old school she was a varsity cheer leader, vice president of the student council, and would ave been presented as the school "sweetheart" at homecoming had her family not

    asked by Carol
  100. % equation, rounding, and problem solving

    1) If a 16 oz. bottle of shampoo contains 78% water, find the number of ounces of water in the bottle. Round to the nearest tenth of an ounce. My rounded answer was 12.5 oz., rounded from 12.48 oz. 2) The local real estate agents' association collects a

    asked by Alex L.
  101. algebra

    Pa^t and Pe^rt are two forms of the same exponential function. One would expect to obtain the same answer for f(18). Explain why you may not get the same answer for f(18) in practice.

    asked by Anil
  102. government

    Using any resources you choose, write several paragraphs stating advantages and disadvantages to the unitary, confederate, and federal systems of government.

    asked by mindy
  103. chemistry(rusting)

    i know that iron(II)hydroxide is brown solid,how about iron(III)oxide?

    asked by Kong
  104. Physics180

    Tidal forces can break apart objects that orbit too close to a planet, producing rings like those of Saturn. Consider an asteroid 600km in radius, 65mm from Saturn's center. What's the difference in gravitational acceleration between the two sides of the

    asked by Alan
  105. psychology

    explain the gestalt principle

    asked by brandy
  106. Mathematics

    A man walked for some distance at 8 km/h, and for an equal distance at 5 km/h. The total time he took was 13/4 hours. Find the total distance he walked. Explain your workings

    asked by Ruby
  107. Child development

    o got this question and need to know the answer for homework Why do men get contraception?

    asked by Racheal
  108. physics.pls help

    can you help me to isolate the ''t'' in this formula. d=V1t+1/2at^2 pls help

    asked by ted
  109. chemistry

    sample of argon gas collected at a pressure of 1.11 atm and a temperature of 28.0 oC is found to occupy a volume of 20.3 liters. How many moles of Ar gas are in the sample?

    asked by jen
  110. Calculus

    Regard as the independent variable and as the dependent variable and find the slope of the tangent line to the curve (x^2 + y^2)^2 - 4x^2 y = 225 at the point (x,y) = (4,1) Thank you very much for helping me.

    asked by Jake UCD 11/5/11
  111. Introduction to Psychology

    After the day of the wreck, Yung avoided the corner of 9th and Mulberry. He knew that there was nothing wrong with thatparticular location, but since the acident he experienced shortness of breath and tightness in his muscles when he drove past the corner.

    asked by Carol
  112. algebra

    perform the indicated operation 7/5 * 8/3

    asked by Angela
  113. psychology

    what are variable that influence memory? i do not need links i need detailed answers. this is not a linking website, its supposed to give answers.

    asked by brandy
  114. math

    There are 28 students in Ms. Rainbow's Math class. The number of girls is 10 less than the number of boys. If there are b boys in the class, write an equation to correctly model the situation.

    asked by Anonymous
  115. psychology

    how do psycho dynamic, physiological psychology, cognitive psychology, and cortical function effect aggressive behavior? in detailed answers please. i do not need links, i need answers.

    asked by brandy
  116. French

    for part of our french homework we have to find the synonyms of words and we am stuck and don't really understand what we have to do..... would you be able to help us one example we have to find is travail scolaire and the words begin with: les

    asked by Ellie and Ruth
  117. social studies

    the puritans shared another principal that our country today is founded on hard work. In Europe free education was unheard of. You went to school to learn to read so you could read the bible. Early school was called____school. It was taught by a woman in

    asked by stephanie
  118. Math

    Find the sum of the first 12 terms of the sequences given in #1. a.f(n) = 5*(2)^(n-1) ; for n = 1,2,3,4,… b.a1 = 1/3 ; an+1 = = 3*an

    asked by Elisabeth
  119. math

    The points (−12, 20), (0, 5), (42, −3) lie on the graph of f. List three points on the graph of g(x) = 10 − 2f(−3x).

    asked by john
  120. Chemistry

    Why the vapor pressure of water and ethanol is 760 mm of Hg at 100 degree Celsius and 78.5 degree Celsius respectively ?

    asked by Nadeem
  121. Calculus

    Let x^3 + y^3 = 28. Find f''(x) at the point (3,1). Thank you very much for your help.

    asked by Jake UCD 11/5/11
  122. Calculus

    Find f'(x) if f(x) = ln [x^8 (x+9)^2 (x^2 + 5)^4 ] Thank you very much for your help.

    asked by Jake UCD 11/5/11
  123. Biology

    I have written an answer for the question below. Why do Ellie and her brothers resemble her parents? Explain how genetic information passes from parents to their offspring. Please check if i have included all the scientific words and if i have explained

    asked by Ruth
  124. Introduction to Psychology

    New technology is a wonderul servant, but the learning curve is often steep. Men often viewthemselves are more capable of using new technology that women because: (a) women learnnew skills more slowly (b) men generally have a higher estimation of their

    asked by Carol
  125. MATHS

    matt and ruba each have one coin. The total amount of money is less than 50p. work out the probability that exactly one of the coins is a 10p piece. assume that all possible coins are equally likely.

    asked by Chloe
  126. psychology

    how do psycho dynamic, physiological psychology, cognitive psychology, and cortical function effect aggressive behavior? in detailed answers please.

    asked by brandy
  127. math

    What is 1% of 18.54 multilplied times 52?

    asked by mama D
  128. social

    Which group of people are drugging youths in California who are hired/ paid by employers? They also trick your families/ friends into drugging you. Victims are from Bay area.

    asked by Ave
  129. algebra - please help

    Let N(t) be number of bacteria after t days. N(t) = Pa^t for some constants P and a. N(2) = 5400 and N(6)=382,000. a)before working problem, estimate value of N(5). b) write down 2 equations for P and a, one when t=2 and one when t=6, and use these two

    asked by Nilan
  130. math c30

    what is the domain and range of the function y= -2cos 1/2 ( x + pi/4 ) -2

    asked by don
  131. eth

    Ok stuck I;m supposed to select two major ethical theories and what are the major differnces between these two theories?

    asked by at
  132. engineering

    I need help in my homework concerning Fire Science Engineering. Acetone is released into the diked area surrounding its storage tank. The dike measures 40 feet long by 30 feet wide. What heat is the Heat Release Rate should it catch on fire? This help will

    asked by Deborah
  133. Reading

    What does this sentence mean? I dnt understand what it is saying As for the Sasanid rule, a well-engrained class system was in place defining from birth whether one would be a priest, warrior, secretary, or commener.

    asked by Mike123
  134. math

    5^(-x+3) = 64 I have only had exponents to the x, not with +3 too.

    asked by Sushmitha
  135. English

    Could you please check these sentences? Thank you. 1) We're looking for a high school in which subjects such as biology or geography are taught in English so that in the future our students could carry out a project on a common theme in English. 2) I

    asked by Henry2
  136. English

    I forgot to include the following sentences. Thank you. 1) A volunteer (voluntary worker') has a little monkey on her legs. She is observing the monkey sucking a milk bottle. 2) A veterinary is stethoscoping (?)a dog. 3) In picture C I can see in the

    asked by Henry2
  137. psychology

    explain the decay theory

    asked by brandy
  138. psychology

    what are variable that influence memory

    asked by brandy
  139. 7th grade math

    8/9 \1/4

    asked by Aaron
  140. calculus

    select the equations of all lines through the orgin that are tangent to the curve y=x^3-8x^2-7x

    asked by Roz
  141. calculus

    find dy/dx by implicit differentiation 5/y+45/x=1

    asked by me
  142. math c30

    Solve cosxtanx + root3cosx - root3/2tanx - 3/2 = 0 exact answers and formula for general solution

    asked by don
  143. mahs

    calculate the range for 20,44,18,16,27,20,14,18,22,27,16

    asked by dorcas
  144. ALGEBRA

    Combine and Simplify 2 + t/t-3 - 18/t^2-9 - Please explain

    asked by Maya
  145. math

    the teachers of bethany school want to take students to a field trip.It costs $1000 to rent a bus and a $10 per student for the day's activities.Write a rule for the total cost of the trip for nay number of student.

    asked by lisa gomez
  146. math

    how do you find the coordinate of x in the problem x-4y=100 in other words how do i find out what x is and 4y what do the y stand for how do i get it

    asked by angela
  147. PHYSICS

    On the planet jupiter , g is 2.5m/s². What does this mean?

    asked by CYNTHIA
  148. Calculus

    Find the slope of the tangent line to the curve 2(x^2 + y^2)^2 = 25(x^2 - y^2) at the point (3,1). Thank you very much for your help.

    asked by Jake UCD 11/5/11
  149. Physics

    Why metal is a good THERMAL conductor but plastic is a worse conductor than metal? Is it also due to the delocalised electrons of the metal?plz explain it.

    asked by demolitrate
  150. MATH

    A car dealer will sell you a used car for $5,430 with $430 down and payments of $183.06 per month for 36 months. What is the simple interest rate? (Round each answer to the nearest tenth.) PLEASE HELP!

    asked by JONATHAN
  151. Physcis

    Determine the acceleration of the marble from the straight line equation you calculated in question 2. So the equation i found in Q2 was y=9.84x+6.79 How do i figure out acceleration from this? please help!

    asked by Anonymous
  152. eth

    whats the differnce between philosophical ethics and theological ethics

    asked by at
  153. 7thgrade math

    3/4 +3/20 / 2/5 * 7/8 -1

    asked by Aaron
  154. Human Relations Part 1

    the main reason self- confidence is important in human relation is because ?

    asked by Maxwell John


    asked by TYYYY
  156. math

    express as a single log: 1/2 log x + 3 log y - 4 log x =

    asked by AJ
  157. science-biology

    why do we study the human organ system?

    asked by diana
  158. psychology

    how do psycho dynamic, physiological psychology, cognitive psychology, and cortical function effect aggressive behavior?

    asked by brandy
  159. MATH

    Convert the following credit card rate to the APR. Oregon, 1 3/4% per month 1.75 % IS THIS CORRECT?

    asked by JONATHAN
  160. Article finding

    Hi, I was wondering where I can find some articles on cognitive or abnormal psychology for an assignment.

    asked by Alex L.
  161. communcation

    what do you think would be the reaction of a reader if the topic sentences in an essay did not align with the supporting points

    asked by lorraine bonner
  162. maths

    what is the mean for 20,14,18,16,27,20,14,18,22,27,16

    asked by dorcas
  163. Math

    Janice said that if you cut a cube into two parts you form 2 smaller cubes. Ling said that 2 rectangular prisms are formed. Who is correct? Explain.

    asked by Ethan
  164. math


    asked by Anonymous
  165. Science

    Who invented the computer ????

    asked by Laruen
  166. Algebra 2


    asked by jay
  167. Algebra 2


    asked by jay
  168. social studies

    The Puritians came to the new world searching for ______ ______ just like the Pilgrams had.

    asked by stephanie
  169. religion

    who wrote about one-fourth of the bible? thanks

    asked by lauren