Questions Asked on
January 28, 2012

  1. General Chemistry II

    The equillibrium constant (Kp) for the interconversion of PCl5 and PCl3 is 0.0121: PCl5(g) --> PCl3(g) + Cl2(g) A vessel is charged with PCl5, giving a initial pressure of 0.123 atm. At equillibrium, the partial pressure of PCl3 is _____ atm.

    asked by Rosi
  2. english

    What argument does the other man use to convince the narrator to team up with him? What lesson do you think the narrator learned by the end of the evening?

    asked by jenna
  3. Trig

    Sketch a unit circle and label the terminal points corresponding to t= pi/4, 3pi/4, 5pi/4, 7pi/4. Include the coordinates of each point. I have 3 other problems like this and i have no clue how to do them. can someone help please?

    asked by BreAnne
  4. Solid Figures With Curved Boundaries

    You are to paint the globe held aloft by a statue of Atlas. Its diameter is 10.5 in. How much surface area must you cover with paint if 27 square inches does not need to be painted (to the nearest hundredth)?

    asked by Anonymous
  5. chemistry

    a solution contains Cr3+ ion and Mg2+ ion. The addition of 1.00 L of 1.55 M NaF solution is required to cause the complete precipitation of these ions as CrF3(s) and MgF2(s). The total mass of the precipitate is 49.8 g.

    asked by Lynn
  6. chemistry

    how many grams of potassium chlorate must be used to produce 30.0g of oxygen?

    asked by Val
  7. Marketing

    Net-4-You is an internet service provider that charges its 1 million customers $19.95 per month for its service. The company's variable cost are $0.50 per customer per month. In addition, the company spends $0.50 per month per customer, or $6 million

    asked by Anonymous
  8. Math

    How do I solve this if there is no equation to this 1. The population of the bacteria in a Petri dish increases by a factor of 10 every 10 hour. If there are initally 20 bacteria in the dish, how long will it take before the population increases to 60,000

    asked by Jake
  9. physics

    An object glides on a horizontal tabletop with a coefficient of kinetic friction of 0.55. If its initial velocity is 4.1 m/s, how long does it take for the object to come to rest?

    asked by Rachel
  10. ddh

    2/x+3/y=9/xy,4/x+9/y=21/xy.what is the value of x,y

    asked by Anonymous
  11. Algebra

    A rubber ball rebounds 3/5 of the height from which it falls. If it is initially dropped from a height of 30 ft. What total vertical distance does it travel before coming to rest?

    asked by PDF
  12. statistics

    A survey about the art program at a school found that 250 students wanted an after-school art program, 150 students wanted art classes during the day, and 100 students thought that the school should have no art program. If a circle graph were made from

    asked by Ashley
  13. physics

    A 3.24 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=11.8N at an angle theta=23.0degrees above the horizontal, as shown. What is the magnitude of the acceleration of the block when the force is applied? b.)

    asked by Rachel
  14. Physics

    An object has a weight of 0.852 N. It is suspended from a scale, which reads 0.749 N when the piece is submerged in water. What is the volume of the piece of metal?

    asked by Robb
  15. physics

    The height of a helicopter above the ground is given by h = 2.55t3, where h is in meters and t is in seconds. At t = 1.60 s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ground?

    asked by othman
  16. Math

    The perimeter of a geometric figure is the sum of the lengths of its sides. If the perimeter of a pentagon is 48 meters, find the length of each side.

    asked by Jessica
  17. Physics - please help

    A 3.70kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.470. Determine the kinetic frictional force that acts on the box when (a) The elevator is stationary. (b) The

    asked by Sejul
  18. chemistry

    Find the mass of urea needed to prepare 50.1 of a solution in water in which the mole fraction of urea is 7.50×10−2.

    asked by Kelley
  19. physics

    An object glides on a horizontal tabletop with a coefficient of kinetic friction of 0.65. If it comes to rest after 0.9 seconds, what was its initial velocity?

    asked by Rachel
  20. Math

    Find the limit (if it exists). (If an answer does not exist, enter DNE.) lim_(t->2) (t^2 + 7 t - 18)/(t^2 - 4)

    asked by Anonymous
  21. chemistry

    how many grams of potassium chlorate must be used to produce 30.0g of oxygen?

    asked by Val
  22. physics

    A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 25.9° with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 55.3 kg, and the coefficient of

    asked by rachel
  23. writting skills

    if we were teenagers at the time these licences signified our passage a to adulthood. which of the following is the best way to write the underlined portion of this senence? choose option 10 time these licences . 2)time.These licences .3) time; these

    asked by guerson
  24. physics

    The height of a helicopter above the ground is given by h = 2.55t3, where h is in meters and t is in seconds. At t = 1.60 s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ground?

    asked by othman
  25. Managerial Economics

    The demand function for a cola-type soft drink in general is Q = 20-2P, where Q stands for quantity and P stands for price. At which price would a change in price and quantity result in approximately no change in total revenue? Why?

    asked by Jay
  26. physics

    A professor drives off with his car (mass 840 kg), but forgot to take his coffee mug (mass 0.37 kg) off the roof. The coefficient of static friction between the mug and the roof is 0.7, and the coefficient of kinetic friction is 0.4. What is the maximum

    asked by Rachel
  27. Chemistry(Please check)

    1) For a series of small molecules of comparable molecular mass, which of the following choices lists the intermolecular forces in the correct increasing order? a) dipole-dipole forces < London forces < hydrogen bonds b) hydrogen bonds < dipole-dipole

    asked by Hannah
  28. personal finance

    Determining the future value of education. Jenny Franklin estimates that as a result of completing her master's degree, she will earn $7,000 a year more for the next 40 years. A.) what would be the total amount of these additional earnings? B.) what would

    asked by shanty
  29. Supplementwhat: Misues of statistics.

     8. “Vitamin E is a proven antioxidant and may help in fighting cancer and heart disease.” Is there anything ambiguous about this claim?

    asked by Anonymous
  30. ALGEBRA

    A chemist is asked to make 10 liters of a a35% solution. She has only a 10% solution and a 50% solution to work with. how much of each solution must she mix to ge 10 liters of the 35% solution?

    asked by jackie
  31. physical

    a rocket moves through outer space at 11,000 m/s at this rate how much time would be required to travel the distance from earth to moon which is 380,000 km

    asked by cindy
  32. Chemistry

    A quantity of ice at 0.0°C was added to 25.0 g of water at 21.0°C to give water at 0.0°C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g · °C). _g

    asked by jessica
  33. physics

    A professor drives off with his car (mass 840 kg), but forgot to take his coffee mug (mass 0.37 kg) off the roof. The coefficient of static friction between the mug and the roof is 0.7, and the coefficient of kinetic friction is 0.4. What is the maximum

    asked by Rachel
  34. Physics

    An automobile accelerates from rest at 2.4 m/s2 for 29 s. The speed is then held constant for 11 s, after which there is an ac- celeration of −2.2 m/s2 until the automobile stops. What total distance was traveled? Answer in units of km

    asked by Ashley
  35. Math

    Find the constant a such that the function is continuous on the entire real line. f(x) = 5x^2, x ≥ 1 ax − 3, x < 1 ???Please, thnks.

    asked by Anonymous
  36. Chemistry

    Predict the reaction, if any, that would occur if Sr(NO3)2 and Na2CO3 were mixed. Would any reaction occur if HBr were added? Thank You

    asked by Arnub
  37. AP Chem

    A weak acid (HA) is found to ionize 16.2% when mixed at a concentration of 0.21 mol/L. What is the value of Ka for this acid?

    asked by Sam
  38. chem

    calculate the amount of water that must be added to 6.5 grams of urea to produce a 22-2% by mass solution?

    asked by anthoony
  39. Physics (Mechanics)

    Marie shoots an arrow vertically upward at a sandhill crane. If the arrow travels to a maximum height of 99.5 meters, calculate how fast it was shot. And, for how much time was Marie's arrow in the air?

    asked by Sabrina
  40. Physics

    A tennis ball is thrown horizontally from an elevation of 20.60 m above the ground with a speed of 21.0 m/s? Where is the ball after 2.00 s? vertical m from the ground? If the ball is still in the air, how long before it hits the ground? (If the ball is

    asked by Anonymous
  41. physics

    Marie shoots an arrow vertically upward at a sandhill crane (she misses the crane, so you PETA members can relax). If the arrow travels to a maximum height of 99.5 meters, calculate how fast it was shot. And, for how much time was Marie's arrow in the air?

    asked by qwertzuiop
  42. Personal finances

    Calculating future value if salary. During a job interview, Pam thompson is offered a salary of $28.000. The company gives annual raises of 6 percent. What would be Pam's salary during her fifth year on the job?

    asked by shanty
  43. social studies - 2nd grade

    how do people change the environment? How do people change my community? i have a project on this can you please help me? thank you

    asked by Blair
  44. Physics

    A 784 Newton astronaunt travels to Neptune's largest moon, Triton, with a simple bathroom scale. While standing on the surface of the moon, he finds that he now weighs only 62 Newtons. What is g, acceleration due to gravity, on Triton? g=weight/mass Is

    asked by Tracy
  45. physics

    An elevator (cabin mass 540 kg) is designed for a maximum load of 3500 kg, and to reach a velocity of 4 m/s in 3 s. For this scenario, what is the tension the elevator rope has to withstand?

    asked by rachel
  46. physics

    Two blocks of mass m = 14.9 kg each are fastened to the ceiling of an elevator,The elevator accelerates upward at a = 1.62 m/s2. Find the tension in the bottom rope and the top of the rope.

    asked by Rachel
  47. physics

    The initial velocity of a 2.56 kg block sliding down a frictionless inclined plane is found to be 1.13 m/s. Then 1.08 s later, it has a velocity of 3.99 m/s.What is the angle of the plane with respect to the horizontal?

    asked by Rachel
  48. physics

    An object of mass m moving with initial speed of 15 m/s got an acceleration of 10 m/s^ after a constant force F is applied to it. How long does it take for the object to reach 90 meters from its initial position?

    asked by Abdela said yimer
  49. Physics

    A speeder traveling at a constant speed of 102 km/h races past a billboard. A patrol car pursues from rest with constant acceleration of (9 km/h)/s until it reaches its maximum speed of 146 km/h, which it maintains until it catches up with the speeder. How

    asked by Anon
  50. English

    I really need help with my writing. I need some to proof read a paper that I wrote. Two Career Families versus One Career Families Back in the early days the traditional working family was a one career family. The roles of husband and wife were defined and

    asked by Joel
  51. physics

    A converging lens of focal length 7.740 cm is 19.7 cm to the left of a diverging lens of focal length -5.51 cm. A coin is placed 18.2 cm to the right of the diverging lens. a. Find the location of the coin's final image. b. Find the magnification of the

    asked by marisol
  52. Physics

    A child tosses a baseball to his siter, who is hanging out the window of an apartment building. The ball's initial velocity is 18 m/s upward. (Ignore any horizontal motion) 1. How long will it take for the ball to reach its maximum height? 2. The sister

    asked by DENISE
  53. math

    Imagine a local bank representative is assisting you with establishing an account. The account you two are discussing has an APR of 6.5%. Determine the APY with quarterly compounding and with monthly compounding. How does changing the compounding period

    asked by netta
  54. physics

    A 3.24 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=11.8N at an angle theta=23.0degrees above the horizontal, as shown. What is the magnitude of the acceleration of the block when the force is applied?

    asked by Rachel
  55. physics

    Suppose vector A=3i-2j, B= -i-4j and vector C are three vectors in xy plane with the property that vectors A+B-C. What is the unit vector along vector C?

    asked by Abdela said yimer
  56. Chemistry(Please check)

    1) Where in the phase diagram of a compound do all phases exist together? a) at the sublimation point b) at the boiling point c) at the melting point d) at the critical point e) at the triple point I chose answer E, the triple point. Is this correct?

    asked by Hannah
  57. psy/300

    What are the positive aspects of peer groups during adolescence? Which of Erikson's stages describes the psychological issues of adolescence.

    asked by Sara
  58. Physics

    Your friend's car is parked on a cliff overlooking the ocean on an incline that makes an angle of 16.9° below the horizontal. The brakes fail, and the car rolls from rest down the incline for a distance of 36.3 m to the edge of the cliff, which is 61.1 m

    asked by Matthew
  59. physics

    Marie shoots an arrow vertically upward at a sandhill crane. If the arrow travels to a maximum height of 99.5 meters, calculate how fast it was shot. And, for how much time was Marie's arrow in the air?

    asked by qwertzuiop
  60. physics

    Marie shoots an arrow vertically upward at a sandhill crane. If the arrow travels to a maximum height of 99.5 meters, calculate how fast it was shot. And, for how much time was Marie's arrow in the air?

    asked by qwertzuiop
  61. math

    what is the length of a diagonal of a square whose side measures 6cm.?

    asked by Randy
  62. physics

    The height of a helicopter above the ground is given by h = 2.55t3, where h is in meters and t is in seconds. At t = 1.60 s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ground?

    asked by othman
  63. Chemistry

    A cyclist rides at an average speed of 30 .If she wants to bike 189 , how long (in hours) must she ride?

    asked by Marie Z
  64. physics

    a 200 gram mass is balanced at one end of a meterstick and a 100 gram mass is at the other. the center of mass is 36.75 cm from the 200 gram mass. What is the mass of the meterstick? Thank you for you help

    asked by Ken
  65. physics

    on an exam i had to day this was the question:A painter of mass 50.0 kg stands on a platform of mass 40.0 kg and pulls on two ropes which hang over pulleys, as shown. He pulls each rope with a force of 400.0 N. Assuming a coordinate system where +y is up,

    asked by Sally
  66. math

    One seventh of a string was used to support a pole and 3/5 of the remainder was used to tie up a parcel.what fraction of the rope ramained?

    asked by Rahma
  67. chemistry

    Balance the word equation solid calcium carbonate reacts with hydrochloric acid to yield aqueous calcium chloride, carbon dioxide gas, and liquid water?

    asked by olivia
  68. Biology

    What will happen to human red blood cells (crenate, lyse, or no change) if they are placed in the following solutions? 20% NaCl solution

    asked by Anna
  69. Chemistry

    Using VSEPR what is the shape of ammonia (NH3) and water (H2O) when bonded to a hydrogen bond?

    asked by Randolph
  70. College Math

    3/(2m+4)= 1/(m+2)- 2

    asked by Alexis Thompson
  71. math

    find the base of the triangle of a triangular prism with a height of 8 yards, altitude of 4 yards , and a volume of 16 cubic yards ?! can you help me???

    asked by me/4/me
  72. Physics

    You are driving to the grocery store at 12.7 m/s. You are 108.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.470 s and that your car brakes with constant acceleration. How far are you from the intersection

    asked by Dave
  73. college algebra

    Contract the expressions. That is, use the properties of logarithms to write each expression as a single logarithm with a coefficient of 1. ln(3)-2ln(4+8)

    asked by Anonymous
  74. Economics

    One year ago, you bought a bond for $10,000.00. You received interest of $400.00 at the end of the year, as well as your $10,000.00 principal. If the inflation rate over the last year was five percent, calculate the real return. Show your work.

    asked by Tracey
  75. geography

    1. In what direction does the Nile River flow? The river flows North. 2.Paris,France, is southeast of the itersection of ? degree(s) longitude and ? degree(s) latitude? 0 degrees longitude and 50 degrees latitude 3. Does Mexico have more coastline on the

    asked by Reed
  76. finance

    1. Assume investors expect a 2.0 percent real rate of return over the next year. If inflation is expected to be 0.5 percent, what is the expected nominal interest rate for a one-year U.S. Treasury security?

    asked by fran123
  77. Integral Calculus

    ∫(5y+4) dy/√5y-1

    asked by mimie
  78. biology

    experiment to show that heat is given out during aerobic respiration?material needed,method/procedure,observation and conclusion

    asked by faith
  79. algebra

    The half-life of 234U, uranium-234, is 2.52 105 yr. If 97.7% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed?

    asked by Anonymous
  80. chemistry

    6.0g of impure and hydrous Na2SO4 were made up to 1dm^3 of solution neutralize 22.20cm^3 of 0.1mol/dm^3 of HCL.calculate: a)concentration of Na2CO3 in mol/dm^3. b)concentration of Na2CO3 in gram/dm^3. c)percentage purity in carbon.

    asked by faith
  81. chemistry

    6.0g of impure and hydrous Na2SO4 were made up to 1dm^3 of solution neutralize 22.20cm^3 of 0.1mol/dm^3 of HCL.calculate: a)concentration of Na2CO3 in mol/dm^3. b)concentration of Na2CO3 in gram/dm^3. c)percentage purity in carbon.

    asked by faith
  82. algebra

    could you please check my answer and show me correct way . thanks for your help solve the equation if pssible -3|6n-2| +5 = 8 note:: 6n-2 is abolute value 6n-2 is positive -3|6n-2| + 5 = 8 |6n-2| = 6 6n - 2 = 6 6n - 2 +2 = 6 + 2 divide by 6 n = 8/6 6n-2

    asked by ann
  83. Chemistry

    Using VSEPR what is the shape of ammonia (NH3) and water (H2O) when bonded to a hydrogen bond?

    asked by Bob
  84. Algebra

    Solve: 27/t-7=t+7/3

    asked by Anonymous
  85. 6th grade math

    does the word difference mean minus and if so..... am i correct to say 0-12 = 0 ? PLEASE ADVISE. THANK YOU IN ADVANCE FOR YOUR HELP.

    asked by zavier
  86. algebra 2

    help me work this out f(x)=x^2-7x+9 x intercepts.

    asked by kay
  87. Biology

    In human body, substances from blood filter through a membrane into renal tubule (kidney). What does an increase in the driving pressure correspond to?

    asked by Anna
  88. math

    Consider the following. lim x→−2 2x^2 − 2x − 12/x + 2 Find the limit of the function (if it exists). (If an answer does not exist, enter DNE.) Write a simpler function that agrees with the given function at all but one point. g(x) = ??? thnks

    asked by Anonymous
  89. Managerial Accounting

    Greetings, I just started my accounting class and I do not have any accounting experience of knowledge (my first acct class). Could you please help me out. I just need the traditional and ABC direct, indirect, and unallocated cost answer for the two

    asked by Angela
  90. math

    how do I figure out if one million dollars in 100 dollar bills can fit into a briefcase measuring 17" by 12" by 3.5"

    asked by Anonymous
  91. physics

    You and your friend are leaning over the edge of the roof of a tall building. At the same instant you throw a baseball straight up with an initial speed vo and your friend throws a marble straight down with the same initial velocity vo. Assume that you can

    asked by qwertzuiop
  92. Algebra

    Find all roots of 169/81 A.13,16,9 B.13/9-13/9 C.16,9 D.16/9-16/9

    asked by Julian
  93. finance

    6. You are considering an investment in a one-year government debt security with a yield of 5 percent or a highly liquid corporate debt security with a yield of 6.5 percent. The expected inflation rate for the next year is expected to be 2.5 percent. a.

    asked by fran123
  94. math

    a boy mass increases by 12% between is 10 and 11birthday it is mass was 52 kg on his 10 birthday whats was the amount on his mass on his 11 birthday

    asked by Anonymous
  95. phi 301

    "All dogs like bones; Sirius is a dog; therefore Sirius likes bones" may commit which fallacy?

    asked by Anonymous
  96. Math

    The rate r is given. Substitute θ = π/6 in the equation for r and then simplify. r = 45π sec^2 θ ???

    asked by Anonymous
  97. algebra/functions

    recent estimates indicate that the area covered by glaciers has decreased from over 25.5 km^2 in 1850 to about 16.6 km^2 in 1995. Let A=f(t) give the area t years after 2000, and assume that f(t)=16.2-0.062t. How much glacier area disappears in 15 years?

    asked by luckybee
  98. statistics

    Suppose that the mean score of an exam was 77 when taken 30 students took it on time with a standard deviation of 2. A makeup of the same exam is given to 6 students. The retakes averaged a score of 83 with a standard deviation of 2.9. What is the average

    asked by Pat
  99. Human Services

    Please let me know if I am correct. An example of criterion validity is when a human service professional uses a scale to measure risk of suicide. If the scale is valid it should correlate with the occurence of negative behaviors which harm one self

    asked by Patiance
  100. English

    I left out the following statements. Thank you. 1) Investigation activities will be based on four components: investigation (analyzing problems from different points of view), interaction (activities and skills) and interpretation (presentation of findings

    asked by Henry2
  101. math

    65% of 24.6 = 15.99 show me the calculation

    asked by Anonymous
  102. Math

    When the band traveled to the latest competition, they left school on the bus at 9:30 am. They arrived in Astoria and practiced until 7:15pm. How long did they spend traveling and practicing that day? What kind of math do I need to do to see how long they

    asked by Andrew
  103. english rechecking and grammar checking

    Hey, For the first part I edited my work from the previous time I posted. For the second and third part I need help seeing if I answered the questions correctly and if my grammar and wording is proper. 1.For the movie, who are the main characters? #1-The

    asked by Anonymous
  104. Computers

    Name 5 examples of secondary storage devices and describe them

    asked by Sasha
  105. algebra 2

    how do you solve 7x+x (x-4)=0 solution (s)/arex= find the x- intercepts of f(x)=7x+x(-4) what are the x intercepts

    asked by kay
  106. Math

    Find the limit (if it exists). (If an answer does not exist, enter DNE.) lim_(x->59)(sqrt(x+5)-8)/(x-59)

    asked by Anonymous
  107. writing

    Write a 150- to 200-word paragraph to explain how purpose, audience, tone, and content impact academic writing

    asked by mike smith
  108. physics

    Which of the statements regarding this situation are true? Select all that apply. -In this simulation when the capacitor voltage is set to a positive value the top plate has a positive charge on it and the bottom plate has a negative charge on it. -In

    asked by cpk101
  109. Business Math

    Item price $8.00 Fixed cost $200 Variable costs 3x if x items are sold, write an expression for: Revenue, Cost, Profit

    asked by Guillermo
  110. dependance of a man on the enviroment

    How do deforestation and urban sprawl affect the greater food web?

    asked by noel
  111. Chemistry

    Predict the reaction, if any, which would occur if AgNO3 and KBr were mixed. Would any reaction occur if HNO3 was added? Thanks!

    asked by Ajunb
  112. Physics

    The Victoria Falls is the tallest waterfall on Earth measuring 108 meters at its highest point. How long will it take for a single drop of water to fall over its edge into the chasm below? Please check answer, if I am doing it incorrectly help me set it

    asked by MARTHA
  113. Math

    Convert the following base-ten numbers to a numerical in the indicated bases: a. 303 in base three b. 1876 in base twelve

    asked by Heather P.
  114. physics

    You and your friend are leaning over the edge of the roof of a tall building. At the same instant you throw a baseball straight up with an initial speed vo and your friend throws a marble straight down with the same initial velocity vo. Assume that you can

    asked by qwertzuiop
  115. trig

    if x is an acute angle and sinx= cosx then find the value of x?

    asked by deepika
  116. chemistry

    solving problems in bodies thrown vertically downward. solving problems in bodies thrown vertically upward

    asked by mhae
  117. Integral Calculus

    Solve using Integration by Substitution : ∫√x2-a2/x dx ∫√c2-a dx ∫ ln (√y + 3) dy ∫(5y+4) dy/√5y-1

    asked by mimie
  118. chem

    I have to find the effective pH range of a buffer. I read that this optimal buffering occurs when the pH is within 1 pH unit from the pK value for the buffering system. But can anyone explain why its is optimal within 1 pH unit? Thanks.

    asked by ian
  119. math

    if my example is a y=kx one and y=-5 and x=10 which are directly proportional why can't I just isolate the "k" (constant) and solve as a regular algebraic equation?

    asked by Nicole
  120. Business Finance

    On November 1, 2009, Broom Company received a bank statement that showed a $2950 balance. Broom showed a $4010 checking account balance. The bank didn't return check No. 124 for $1080 and ch for check No.138 for $720. A $3200 deposit made on October 30 was

    asked by Terry
  121. critical and creative thinking

    Suppose you live in a new suburban community. It offers all the amenities and benefits of a tight-knit small community, with the benefits of living close to the big city. Some years pass, and several children and adults in the community start developing

    asked by meme
  122. math

    rewrite the expression with a positive (44xy)-4/9

    asked by angle
  123. Precalculus

    Solve 5^(2-x) = 1/125 for x.

    asked by Jake
  124. Science

    Job Issues related to overdrawing surface water?

    asked by Mike
  125. English

    Could you please tell me if everything is OK? Thank you. I had to include the linguistic objectives of the project as well as the methods we are going to employ. Linguistic objectives 1)To provide students with the necessary linguistic structures to

    asked by Henry2
  126. physics

    You and your friend are leaning over the edge of the roof of a tall building. At the same instant you throw a baseball straight up with an initial speed vo and your friend throws a marble straight down with the same initial velocity vo. Assume that you can

    asked by qwertzuiop
  127. English

    How can I revise this sentence? with the addition of a lexical and skills syllabus on biology. (therminology used in biology to describe biodiversity) 1) Do you think that the following should be included into the objectives or the results of students'

    asked by Henry2
  128. math

    Thank you i think im getting somewhere a however, what about -8 x (-4) = -32 am i correct? Ok is this one correct? Also is there a math expert to whom we will pay a decent hourly wage to tutor me?

    asked by zavier
  129. personal finances

    computing future value. calucale the future value of a retirement account in which you deposit $2,000 a year for 30 years with an annual interest rate of 7 percent.

    asked by shanty
  130. Math

    lim_(x->59)(sqrt(x+5)-8)/(x-59)??

    asked by Anonymous
  131. statistics

    Suppose that the mean score of an exam was 77 when taken 30 students took it on time with a standard deviation of 2. A makeup of the same exam is given to 6 students. The retakes averaged a score of 83 with a standard deviation of 2.9. What is the average

    asked by Pat
  132. algebra

    7/9(w+6)=4/9-w

    asked by Anonymous
  133. Science

    wHAT DOES E=MC2 MEAN?

    asked by Joe M
  134. prealgebra

    between which w consecutive numbers would you find the square root of 82

    asked by james
  135. MATH

    How can solve this? help For one pony, the critical force was 1.16 times its body weight. It experienced a force of 0.75 times its body weight at a speed of 2 meters per second, and a force of 0.93 times its body weight at 3 meters per second. At what

    asked by aryan
  136. chemistry

    if the actual mass percent of potassium was 10.00% what is the percentage error

    asked by koren
  137. algebra

    what is 28 seconds over 2 minutes written in its simplest form

    asked by steven
  138. Statistics

    Two fair six-sided dice are rolled and total of results on the top of each doe observed. Find the probability that total is 8

    asked by Tina
  139. government

    What is the term for the power to make final decisions?

    asked by jake
  140. chem

    I have two different questions: 1) If you have 1.1x10^-1 g/L and I need my answer to be in g/mL, how do I convert that? 2) I have 31x^5=1.4x10^-85. What does x equal?

    asked by DEX
  141. trig

    Find sec^2 x (4 tan^2 x-3)

    asked by Anonymous
  142. Math 104

    Determine the comparable interest rate for a $70,000 loan when the quoted information is 12.4% + 0.5 pt + $300. (Round your answer to two decimal places.)

    asked by Gloria
  143. college calculus

    what is the derivative of [x^(y)]=[y^(x)]

    asked by Anonymous
  144. finance

    12. A Treasury note with a maturity of four years carries a nominal rate of interest of 10 percent. In contrast, an eight-year Treasury bond has a yield of 8 percent. a. If inflation is expected to average 7 percent over the first four years, what is the

    asked by fran123
  145. human services

    can you give me an example of judge-to-judge reliability or where I might find an example.

    asked by Patiance
  146. Physics

    Two blocks, the first with a mass of 30 kg, and the second 10kg, are connected by a string and pulled accross a frictionless surface by a force with a magnitude of 75 N. Find the magnitude of the tension acting along the string that connects them.

    asked by Karrie
  147. history

    What is the term for the power to make final decisions?

    asked by jake
  148. math

    Find the vertical asymptotes (if any) of the graph of the function. (Use n as an arbitrary integer if necessary. If an answer does not exist, enter DNE.) f(x) = 3/(x – 6)^3

    asked by Anonymous
  149. math

    ratio 1,5 hours 50 min

    asked by emmanuel
  150. Physics

    How do you calculate the magnitude of the uncertainty of the net force, U{F}? I was given several different equations but for some reason I'm still confused. Any help would be greatly appreciated.

    asked by Emily
  151. biochem

    What is the structure and net charges of Aspartate, Lysine and Alanine at pH 7.5

    asked by age
  152. Finance

    . (TCO 3) Mark deposited $1,000 today, in an account that pays eight percent interest, compounded semi-annually. Which one of the following statements is correct concerning this investment? (Points : 3) Mark will earn more interest in year 4 than he will

    asked by Anonymous
  153. Physics

    How do you calculate the magnitude of the uncertainty of the net force, U{F}? I was given several different equations but for some reason I'm still confused. Any help would be greatly appreciated.

    asked by Emily
  154. psychology

    correlation coefficient indicates a _______________ between two variables.

    asked by Anonymous
  155. math

    If possible, completely factor the expression. (If the polynomial is not factorable using integers, enter PRIME.)

    asked by anoy
  156. Physics

    A ball is thrown straight up from the ground with an initial velocity of 30.4 m/s; at the same instant, a ball is dropped from the roof of a building 21.1 m high. After how long will the balls be at the same height? The acceleration of gravity is 10 m/s2.

    asked by Kaleigh
  157. statisticas

    A 82% confidence interval for a sampling distribution with a mean of 100, a sample standard deviation of 24 and a sample size of 36 will be based on a á= ______ and a corresponding Zá of ____

    asked by Jason
  158. College Physics

    An electron and a proton are a distance r = 8.5 × 10-9 m apart. How much energy is required to increase their separation by a factor of 6?

    asked by Anon14
  159. Math (Time)

    2 hours 48 minutes after 8:30 a.m.___

    asked by Andrew
  160. math

    If a 5 gallon bucket was filled to the top with pig feed, how much would it weigh?

    asked by Lucy
  161. Math

    1 hour 41 minutes before 7 P.M 5:19??

    asked by Andrew
  162. math

    Describe where and why you would use scientific notation.

    asked by Lamar
  163. MATH -CALCULUS

    SKETCH THE REGION ENCLOSED BY THE GIVEN CURVES: Y=|10X|, Y=X^2-11

    asked by Anonymous
  164. Science

    Emotional and physical changes in boys and girls.

    asked by Sasha