Questions Asked on
April 15, 2011

  1. English

    1. He may not be rich. 2. He can not be rich. (Are both the same or different? If they are different, why is that?)

    asked by rfvv
  2. Physics

    Suppose the roller coaster in Fig. 6-41 (h1 = 30 m, h2 = 11 m, h3 = 20) passes point 1 with a speed of 2.10 m/s. If the average force of friction is equal to one fifth of its weight, with what speed will it reach point 2? The distance traveled is 50.0 m.

    asked by Brittney
  3. business

    what are a few leadership strategies best suited for today’s industry needs?

    asked by Anonymous
  4. Math

    Of the first graders who were asked, 1/6 like math best, 2/3 liked reading best, and 12 liked science best. How many were asked their favorite subject?

    asked by Jacob
  5. computer networking

    Mobile Training is a small training firm that offers mobile classrooms that come to your company and teaches office software,such as word,excel,QuickBooks,etc. You're asked to design a network for use in a training environment. it should be mobile,easy to

    asked by stacey
  6. MATH

    A Science instrutor assigns his student one second of home work..the first week of school,two seconds. the second week four seconds, the third.if the student asked whether he would agree to this weekly homework doubling for the duration of the 36-week

    asked by MIKE
  7. science (nursing)

    can you help me what are the big ideas for nursing

    asked by erianne
  8. Math

    Of the first graders who were asked, 1/6 like math best, 2/3 liked reading best, and 12 liked science best. How many were asked their favorite subject?

    asked by Jacob
  9. Chemistry

    The reform reaction between steam and gaseous methane () produces "synthesis gas," a mixture of carbon monoxide gas and dihydrogen gas. Synthesis gas is one of the most widely used industrial chemicals, and is the major industrial source of hydrogen.

    asked by BlahxD
  10. algebra

    While working at The Nut House you are asked to make a mixture of raisins and nuts worth $2.75/lb. You have 12 pounds of raisins worth $1.25/lb. How many pounds of nuts worth $4.00/lb should you add to the raisins to get the right-priced mix? I have no

    asked by Loretta
  11. Calculus (pleas help!!!)

    Consider the parameterization of the unit circle given by x=cos(4t^2−t), y=sin(4t^2−t) for t in (−InF, INF). Describe in words and sketch how the circle is traced out, and use this to answer the following questions. (a) When is the parameterization

    asked by Catherine
  12. Calculus (urgent!!)

    A particle moves with its position given by x=cos(2t) and y=sin(t), where positions are given in feet from the origin and time t is in seconds. A)Find the speed of the particle. Speed = ____________ (include units) B)Find the first positive time when the

    asked by Catherine
  13. math

    (2-1)5=2x5-1x5 illustrates what?

    asked by anonymous
  14. Chemistry (Hess's Law)

    NO2(g) → 1⁄2N2(g) + O2(g) ΔH1 = -33.9 kJ NO2(g) → NO(g) + 1⁄2O2(g) ΔH2 = 56.5 kJ What is ΔH for the reaction 1⁄2N2(g) + 1⁄2O2(g) → NO(g) ?

    asked by Monty
  15. MATH PLEASE HELP!

    HOW DO YOU MAKE -4.2 A ONE, HOW DO YOU ISOLATE IT OR DO SOMETHING SIMILAR

    asked by anonymous
  16. math

    using the inverse property of division how would you isolate -4.2? example of inverse property of multiplication: 3x-5=25 you would add 5 to 25 and then divide 3 to 3x and 25

    asked by anonymous
  17. calculus

    Is it possible to find an example of a bounded region in the x, y plane that satisfies the following condition : when you revolve the region about the x axis you obtain a solid that has a volume equals its surface area

    asked by Sara
  18. math

    A factory needs two raw materials, say, A and B. The probability of having an adequate supply of material A is 0.94, whereas the probability of having an adequate supply of material B is 0.96. A study shows that the probability of a shortage of both A and

    asked by Fakaapo. Suetusi
  19. calculus

    Is it possible to find an example of a bounded region in the x, y plane that satisfies the following condition : when you revolve the region about the x axis you obtain a solid that has a volume equals its surface area

    asked by Sara
  20. math

    is this equation is a linear equation [x + 2y -3z / e^2 + In(2) =0.]true or false

    asked by Fakaapo. Suetusi
  21. math

    In how many ways can a committee of five people be selected from seven women and nine men if at least one woman must be in the committee?

    asked by Fakaapo. Suetusi
  22. Japanese

    On thursday I posted a question. I had done most of the work I just didn't put those things in my book. I have figured out some of those that I posted on Thursday and I have done everything else but can someone tell me what these answers are in

    asked by Caity
  23. math

    (B-C)^2=(C-B)^2, Where B and C are (n x n) in matrices.Is it true or false.

    asked by Fakaapo. Suetusi
  24. AP CALCULUS!! HELPPP URGENT

    related rates: the base of a pyramid-shaped tank is a square with sides of length 12 meters, and the vertex pyramid is 13 meters above the base. the tank is filled to a depth of 5 meters, and water is flowing into the tank at the rate of 2 cubic meters er

    asked by Raven
  25. chemistry

    . Given the following stocks 4M NaCl, 3M NaOH, 5M HCl (a) Prepare 200ml of a solution containing 0.5M NaCl and 0.1M (b) Prepare 300ml of a solution containing 0.5M NaCl (c) Prepare 200ml of a solution containing 0.5M NaCl and 0.1M HCl

    asked by tom
  26. home economics

    Wha is leisure?give 5 implications of leisure

    asked by Pwagwadi anthony madwatte
  27. Analytical Chemistry

    Hi. We performed an experiment on UV-Vis Spectrometry, by testing the absorbance of KMnO4 and KCr2O7 solutions at different concentrations. We prepared the dichromate solutions with dilute sulfuric acid. Why didn't we use water, what is the purpose of

    asked by Amie
  28. MATH

    A Science instrutor assigns his student one second of home work..the first week of school,two seconds. the second week four seconds, the third.if the student asked whether he would agree to this weekly homework doubling for the duration of the 36-week

    asked by MIKE
  29. chemistry

    Just wanted to say thank you to DrBob for responding back even if he wasn't able to answer the question posted on Thur. 4/14/2011. If there is anyone else who can answer I'd appreciate it.

    asked by Connie
  30. Chemistry

    At 298K, 2PCl3(g)+O2(g)---> 2POCl3(l) Delta H= -620.2kJ for the reaction and the standard molar entropies are ,PCl3(g)= 311.8J/K,O2(g)= 205.1J/K and POCl3(l)=222.4J/K. Determine the standard free energy change at 298K.

    asked by PM221
  31. geometry

    Triangle ABC has vertices A(-3,2) B(4.5) AND C(4,-1) Fin out wether the triangle is isosceles?

    asked by Teresa
  32. medical

    i am Prepare a report on what information i found that could impact your future career and how will you use this information? medical in the office. •Changes experienced by the organization? •Mission, vision, and values of the organization? •Discuss

    asked by Denese
  33. Chemistry

    Oxides of nitrogen are produced in high-temperature combustion processes. The essential reaction is: N2(g)+O2(g)--->2NO(g) At what approximate temperature will an equimolar mixture of N2(g) and O2(g) be 5.0 % converted to NO(g)?

    asked by Krutika
  34. Math.

    A bowl contains 8 marbles: 3 red, 2 blue, 1 white, and 2 green. If 3 marbles are randomly selected without replacement, what is the probability that no green marble is selected? I don't know how to do probability.

    asked by Diana
  35. physics

    In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a

    asked by niki
  36. physics

    What mass (in grams) of steam at 100°C must be mixed with 341 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 57.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, and

    asked by tim
  37. Chemistry

    Estimate the aqueous solubility, in milligrams per liter, of AgBr(s) at 160degrees celsius.

    asked by 9037
  38. math

    Mary, who is sixteen years old, is four times as old as her brother. How old will Mary be when she is twice as old as her brother?

    asked by mm
  39. help please

    if you are printing an essay on the comuter....can the essay be double line space?

    asked by sonia
  40. Chemistry

    How do you work the problem 1:10 dilution of 75mL of 2.5M H2SO4

    asked by Connie
  41. social studies

    Compare the Freedom Charter with the United States Constitution. What rights and guarantees does the Charter call for that are different from those in the Constitution?

    asked by michael
  42. economics

    some study guide questions i am stumped on 1 uncertainty about the future is likely to a increase current spending b either increase or decrease c decrease current spending d no impact on current spending think it's d 2 as the general price level increases

    asked by samuel
  43. Algerbra

    what is x if the problem is: (x+2)(x+4)=30+x

    asked by Margret
  44. teaching

    Collecting tickets and money from students, encouraging good manners, and helping with cleanup are tasks associated with which duty? A Monitoring the playground B Monitoring the lunchroom C Monitoring the halls D Monitoring the in-school suspension room I

    asked by Bree
  45. algebra

    How to simplify the square root of 45 plus 4 square root 5

    asked by Suzanne
  46. Chemistry

    2C2H6 +7O2 --> 4CO2 + 6H2O If 6 moles of O2 are used in the following reaction, how many grams of CO2 will be produced?

    asked by Barbara
  47. algebra

    How to simplify the square root of 45 plus 4 square root 5

    asked by Suzanne
  48. algebra

    How to simplify the square root of 45 plus 4 square root 5

    asked by Suzanne
  49. Chemistry

    Zn + HCl --> ZnCl2 + H2 If 18 grams of Zn are used in the following reaction, how many grams of H2 will be produced?

    asked by Barbara
  50. Physics

    A cylinder with a moveable piston holds 2.60 mol of argon at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 149 kPa. (a) Find the final volume of the gas. Answer in m3 (b) Find the work done

    asked by steve
  51. Math

    how do you find the surface area of a sphere if the circonference measures 20 pie ft? A. 1256.6ft squared B. 10ft squared C. 314.2ft squared D. 62.8ft squared

    asked by Destine'e
  52. Physics *work shown ~ pls help!

    An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1

    asked by cr
  53. Physics ~ work shown, pls help!

    A proton is moving in a circular orbit of radius 11.8 cm in a uniform magnetic field of magnitude 0.232 T directed perpendicular to the velocity of the proton. Find the orbital speed of the proton. Answer in units of m/s. I came up with .118/2.83x10^-7 and

    asked by cr
  54. Physic ~ pls help

    A heavy conductor (mass m, length `, resistance R) is suspended by two springs each with spring constant k, and connected to a battery with electric potential V as shown in the figure. A magnetic field ~B is now imposed. The acceleration of gravity is 9.8

    asked by cr
  55. chemistry

    PLEASE NOTE: Titration requires several steps in order to obtain exact results. The procedures described in this lab assume that you have already done the TITRATION TUTORIAL and are familiar with the technique. 1. Prepare the NaOH solution by dissolving

    asked by Zach
  56. PHYSICS

    A 30 kg. balloon is filled with 100 m to the third power of helium. how much force is needed to hold it down?

    asked by DMITRIC
  57. Chemistry (lewis structure/bond)

    Example: Sulfur Trioxide Chemical formula: SO3 Valence e-: ? Needed e-: ? Difference/Bond: ?? Please help me!

    asked by Toni Jones
  58. Solutions Chem

    7) You have a 2.5M solution of Silver Nitrate. It contains 450mL of solution. How many grams of silver would you be able to extract? Cu (s) + 2AgNO3 (aq) -> 2Ag (s) + Cu (NO3)2 (aq) I've gotten this much: M=mol/L 2.5=mol/.45 mol= 2.5*.45 mol=1.125 Silver

    asked by Sarah
  59. More Solutions Chem

    You have 315.00g of sodium hydroxide. How many liters of dangerous 12.0M sulfuric acid (H2SO4) can you neutralize with your supply? __NaOH(s) +__ H2SO4(aq) -> __Na2SO4 + __H2O(l) I know the answer is .43, but I don't know how to get there. Thanks!

    asked by Sarah
  60. PHYSICS please

    what is the minimum gauge pressure needed in the water pipe leading to a building if the water is to come out of a faucet on the 12th floor, 41m. above the pipe.

    asked by DMITRIC
  61. biology

    Photosynthetic electron transport, like cellular respiration electron transport, is a series of redox reactions. True False I think it is true.

    asked by sarah
  62. discrete math

    Fill in the blanks: For all sets A and B, if A is in the set of B, then A union B in in the set of B. Proof: Suppose A and B are any sets and A in in the set of B. [we must show that __________] Let x be and element of _______. [we must show that

    asked by heidi
  63. biology

    Explain negative feedback and give one example in the human body.

    asked by Tia
  64. Physics -work shown

    A heavy conductor (mass m, length `, resistance R) is suspended by two springs each with spring constant k, and connected to a battery with electric potential V as shown in the figure. A magnetic field ~B is now imposed. The acceleration of gravity is 9.8

    asked by cr
  65. Physics with work, pls help

    A proton is moving in a circular orbit of radius 11.8 cm in a uniform magnetic field of magnitude 0.232 T directed perpendicular to the velocity of the proton. Find the orbital speed of the proton. Answer in units of m/s. I came up with .118/2.83x10^-7 and

    asked by cr
  66. Physics ~work shown pls help!

    An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1

    asked by cr
  67. History

    Concidering how religion has shaped our nation by looking back at England and the climate there for Christian, explain the affect of colonization of the New World inregards to the Reformation in Great Britain.

    asked by Elain
  68. mechanics

    Consider a jet of water striking a vertical wall horizontally a speed of v. After hitting the wall, the water moves along the wall. If the area of cross-section of the water jet is S, Find the force that it applies on the wall. Take the mass density of

    asked by mittal
  69. physics

    what is the torque a bolt with 30 cm wrench with an applied force of 650n?

    asked by erik
  70. Psychology

    Is it easier for young women or older women to 'weather' a divorce. I've looked all through my book and cannot find any into pertaining to this question. Please help.

    asked by Shambrey
  71. statistics

    you draw two cards from a standard deck of 52 cards, but before you draw the second card, you put the first one back and reshuffle the deck.

    asked by confused
  72. social studies

    Explain how The Federalist Papers would have been more or less successful if newspapers had been printed monthly (rather than daily or weekly) in a few sentences.

    asked by cw
  73. chemistry

    How to calculate [Co3+] in equilbrium with [co(NH3)6]3+ when 10.0 g of Co (No3)3 is dissolved in 250.0 mL of 1.00 M NH3?

    asked by uma
  74. music

    what similarities does Claudio Monteverdi and Antonio Vivaldi have in common?

    asked by sally
  75. HIM

    Medicare and Medicaid financial issues put constraints on? a. physician services b. critical care centers c. public hospitals or d. outpatient services

    asked by PSH
  76. Statistics

    you draw two cards from a standard deck of 52 cards, but before you draw the second card, you put the first one back and reshuffle the deck. a) are the outcomes on the two cards independent? why? b) find P(3 on 1st card and 10 on 2nd) c) find P(10 on 1st

    asked by destiny
  77. music

    what similarities does Claudio Monteverdi and Antonio Vivaldi have in common?

    asked by sally
  78. calculus 2

    evaluate: ¢²_(k=1)^¡Ä¢Æ(¡î(k+1)+¡îk)/¡î(k^2+k)

    asked by y
  79. Physics

    A motorboat travels at a speed of 40 km/h relative to the surface of the water. If it travels upstream against a current of 12 km/h what is the boats speed relative to the shore?

    asked by aj
  80. Calculus 3

    Compute the average value of following fuction over the region R? f(x,y)= sinxsiny R= { (x,y): 0 ≤ x ≤pi, 0 ≤ y ≤pi}

    asked by Z32
  81. physics

    Find the electric field at the folowing radii from the center of this charge configuration.

    asked by Shannah
  82. physics

    An object with a net charge of 21 µC is placed in a uniform electric field of 590 N/C, directed vertically. What is the mass of the object if it "floats" in the electric field?

    asked by Shannah
  83. physics

    Find the rms speed of H2O molecules in atmospheric water vapor at a temperature of 13.2° C.

    asked by ECU
  84. physics

    A driver measures her "cold" tire gauge pressure to be 1.95 105 Pa. The measurement is made before driving, when the tires are at the temperature of the surroundings, 21.7° C. After driving several miles, she checks the gauge pressure again and finds that

    asked by ECU
  85. physics

    Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.13 x 10^-3 g. The particle is initially moving perpendicular to one of the walls of the box at a speed of 525 m/s. Assume that the collisions

    asked by ECU
  86. MAth

    I set this problem up as 500-2X=3,400 Marys monthly salary is $500 less than twice her daughter's salary. Together they earn $3,400 each month. How much is the daughter's salary. ans-1,300 500-500-2x=3,400-500 2x=3,100 2x/2=3,100/2 what am I missing

    asked by Caroline
  87. PHYSICS help please

    a DC-10 aircraft is flying at an altitude where the atmospheric pressure is 40% of sea level pressure. if the aircraft interior is maintained at sea level pressure, what is the size and direction of the net force acting on a cabin door that is 1.0 meters

    asked by IVLIVS
  88. MAth

    jerry is 6 more than 3 times as old as his son.together they are 46 yrs old. how old is jerry. ans -36 I set up problem 6+3x=46 to start?

    asked by Caroline
  89. MAth

    I don't know how to begin this one-help Janie bought 2 pairs of identical jeans at a sale.she paid regular price for the 1st pair and paid half price forthe 2nd pair.if the the total cost was $45.00,what was the regular price of the jeans? 2x-1/2x=45 ??

    asked by Caroline
  90. Math

    Jennifer has a 60-month fixed installment loan, with a monthly payment of $223.04. The amount she borrowed was $11,000. Instead of making her 36th payment, Jennifer is paying the remaining balance on the loan. What is the total amount due to to pay off the

    asked by Hira
  91. Chemistry

    Benzene (C6H6) is an organic compound that boils at 80.1°C. If 100.0 grams of liquid benzene at 18.5°C is given 16.88 kJ of energy, what is the final temperature (in °C) of the benzene? The ΔHvaporization for benzene = 31.0 kJ/mol and the specific heat

    asked by Laura
  92. science

    100 ml of 0.02 M acetic acid (pKa= 4.76) is titrated with 0.02 N KOH. After adding some base to the acid solution, the observed pH is 2.76. At this pH degree of protonation is

    asked by kavin
  93. Business Math

    What amount must be paid to settle an invoice of $1200 dated Nov.28 , terms 3/10, n/30 if the invoice is paid on Dec. 3? I got $1164. Am I right? Thanks

    asked by ann
  94. physics

    A) As a wind instrument warms up, the resonant frequencies of the instrument tend to slightly decrease. B) If the air in a concert hall warms up, the resonant frequencies of the string instruments will change precisely the same as the resonant frequencies

    asked by JamieLee
  95. earth science

    what element does ammonia replenish in the soil?

    asked by rukhsar
  96. Oral presentation

    My teacher gave us a sonnet and he said that we have to do an oral presentation that faithfully interprets the meaning of the poem. Do you have any ideas on how to make an oral presentation describing a poem. Should I explain line by line or just put the

    asked by Allison
  97. Chemistry

    A 30.9 L cylinder containing C2H4F2 at a pressure of 114.0 torr is connected by a valve to 0.865 L cylinder containing C4H10 at 114.0 torr pressure. Calculate the partial pressure (atm) of C4H10 when the valve is opened.

    asked by ChemLover
  98. Physics (please help!!)

    The Crab pulsar (m=2.00x10^30 kg) is a neutron star located in the Crab Nebula. The rotation rate of the Crab pulsar is currently about 30.0 rotations per second, or 60.0pi rad/s. The rotation rate of the pulsar, however, is decreasing; each year, the

    asked by Abigail
  99. English

    Arranging a narrative in chronological order does NOT help the writer to: A. recognize the order of events B. create interest by showing effects before their causes. C. show steady character development D. allow for surprise endings I'm stuck between A and

    asked by anthony
  100. Statitics

    The value given below is discrete. use the continuity correction and describe the region of the normal distribution that corresponds to the indicated probiality. The probability of fewer than 35 men are senators who are men a)the area to the left of 35.5

    asked by Bella
  101. GMAT Essay

    Hey All, Please rate my GMAT essay out of 6. The topic is “Of all the manifestations of power, restraint in the use of that power impresses people most.” Explain what you think this quotation means and discuss the extent to which you agree or disagree

    asked by Steven
  102. English

    Select the letter of the best correction for the run-on below. Perhaps Eric first saw Greenland in midsummer when it was really green. A. Perhaps Eric first saw Greenland in midsummer it was really green. B. Perhaps, Eric first saw Greenland in midsummer

    asked by anthony
  103. science (nursing)

    what does education means in the field of nursing

    asked by erianne
  104. chemistry

    If 20 L of O2 burns completely a sample of carbon disulfide, how many liters of carbon dioxide are produced, how many liters of carbon dioxide are required?

    asked by Trish
  105. physical

    Everyone i need your attention! I'm having a HUGE PE test on Monday, and I don't know how many players are on a basketball team!!!!! HELP??????

    asked by Logan
  106. Foregin Language

    How do u say hello in German and Italian?????????????????????????????????????????????????????

    asked by Lilllly
  107. home economics

    How many eggs should be added in to a standard chocolate cake recipe? :) k cool thankss

    asked by Emileebabee
  108. nutrition

    in America --million children live in poverty .

    asked by abel
  109. chemistry

    If 20 L of O2 burns completely a sample of carbon disulfide, how many liters of carbon dioxide are produced, how many liters of carbon dioxide are required? How did you get 16?

    asked by Trish
  110. College Algebra

    The length of a rectangle is fixed at 11cm. What widths will make the perimeter greater than 72cm?

    asked by deb
  111. chemistry

    How do you balance the equation NH3 + CuO > Cu + H2O + N2

    asked by Trish
  112. College Algebra

    The function H described by H(x)= 2.75x+71.48 can be used to predict the height in centemeters, of a woman whose humerus(the bone from the elbow to the shoulder)is x cm long. Predict the height of a woman whose humerus is 32cm long.

    asked by deb
  113. English-CHECK PLEASE

    Ok, I figured this out (I think) but can you please check? Don't worry. I can carry the tent all by myself because it is so light. I do not even need a lantern it is so light outside. In these sentences, the word "light" is used as a: A:homophone

    asked by Catherine
  114. english macbeth act 3

    hey sorry i can't find the question iu poseted earlier so i'm going to ask again....it's about macbeth act3.... how did the relationship between macbeth and lady macbeth change? again all that i know is that macbeth wants more power and lady macbeth is

    asked by Mark J.
  115. SQL

    1- A SQL statement is needed to create a stored procedure that has one input parameter of data type int. The stored proc selects the supplierId field and the total, or sum, of all Count field values for each group of supplierId fields from the Part table.

    asked by Robert
  116. Physics

    f a water bed is 1.81 m on each vertical side and 30 cm high. Find its weight. The acceleration of gravity is 9.8 m/s2 and the density of water is 1000 kg/m3. Answer in units of N

    asked by ROb
  117. PHYSICS

    A) As a wind instrument warms up, the resonant frequencies of the instrument tend to slightly decrease. B) If the air in a concert hall warms up, the resonant frequencies of the string instruments will change precisely the same as the resonant frequencies

    asked by J
  118. Physics

    A conduction heat wave is caused to pass through a metal bar of average temperature Tmean = 36 degrees altering its temperature sinusoidally with an amplitude of Ti=2 degrees. The equation which gives the temperature T(x.t) of the metal bar at any place

    asked by Michaela
  119. Chemistry

    An electrochemical cell that uses the reaction Ti^3+ + 2Cr^2+ -> Ti^1+ + 2Cr^3+ Has a standard cell potential of E¢ªcell = +1.19V a. Write the two half-cell reactions. b. Labeling all parts and show the direction of flow of electrons. (Place the anode

    asked by Anna
  120. Criminal Justice

    Could someone please help me with this question? What are crime rates? This is what I have so far: Crime rates are the number of offenses reported for each unit of population. How could I expand on this? Thanks for your help!

    asked by Helen
  121. MAth

    a concrete area measures 20ft on each side. the concrete slab will be 8 inches deep. how many cubic feet of concrete will be needed? my set up is 20 x 20 + 32 ????

    asked by Caroline
  122. English

    Write a story using the words alcove, bigoted, clandestinely, corrugated, futile, inexorably, plausible, ramification, sanguine, and scrutinized. It can be any version of the word and they can be in any order.

    asked by Kelly
  123. math

    What is the average area of a theme park? Thanks!

    asked by Lydia
  124. statistics

    A researcher is testing a null hypothesis that states: H: ì = 50. A sample of 25 scores is selected and the mean is M = 55.Assuming that the sample variance is s2 = 100, compute the estimated standard error and the t statistic. Is this sample sufficient

    asked by kesha
  125. Chem

    estimate the aqueous solubility, in milligrams per liter of AgBr(s) at 160 degrees C

    asked by Joe
  126. math

    i am wonder how to do divsion

    asked by anya
  127. Chemistry

    A 30.9 L cylinder containing C2H4F2 at a pressure of 114.0 torr is connected by a valve to 0.865 L cylinder containing C4H10 at 114.0 torr pressure. Calculate the partial pressure (atm) of C4H10 when the valve is opened.

    asked by BOB PLEAE HELP!!!
  128. Chem

    A 150.0 mL cylinder containing CO at a pressure of 9.50 atm is connected by a valve to 9500 mL cylinder containing B5H9 at 2280 torr pressure. Calculate the partial pressure (atm) of B5H9 when the valve is opened.

    asked by noclueboo
  129. Chemistry

    Calcultate the volume (in mL)of 0.250M silver nitrate solution required to react completely with a 5.00g piece of copper wire. (Assume the reaction runs at 100% yield.)

    asked by Tinkerbell*
  130. PHYSICS

    The pressure at the bottom of a vessel filled with liquid does not depend on: a- the acceleration of gravity b- the liquid density c- the height of the liquid d- the area of the liquid surface

    asked by DMITRIC
  131. trig

    Graph this trigonometric function. y=-4cos(x/2+3.14)+1

    asked by Bob
  132. geometry

    find x, if ABC is an isosceles triangle with AB=BC

    asked by Step
  133. sixth grade math

    Gene has less than 12 nickels,dimes,and quarters in his pocket.The probability of pulling out a nickel or a quarter is 3/4.The probabilty of pulling out a dime is 1/4.How many coins does Gene have in his pocket?How many of each does he have?Please explain

    asked by mike T
  134. chem

    Consider the following reaction. 2 NO(g) + 2 H2(g) N2(g) + 2 H2O(g) An equilibrium mixture of this reaction at a certain temperature was found to have [NO] = 8.1 10-3 M, [H2] = 4.1 10-5 M, [N2] = 5.3 10-2 M, and [H2O] = 2.9 10-3 M. What is the value of the

    asked by Rebekah
  135. Physics

    Can someone check if this is correct or not? Listed following are events or phenomena that occur during either the part of the sunspot cycle known as solar minimum or the part known as solar maximum. Match these items to the correct part of the sunspot

    asked by Misty
  136. chemistry

    Find te Yield of Carbon Dioxide in an Alkaseltzer Reaction. Equation: HCH3COO (Acetic Acid)+ NaHCO3 (Sodium Bicarbonate) -> NaCH3COO+ H20 (water)+ CO2 (Carbon Dioxide) So i know to find the Yield its Actual Yield / Theoretical Yield. How do i find the

    asked by Sara
  137. Chemistry

    Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) If 1.0g of Mg is reacted with 10.0mL of 6.0M HCl, what volume of hydrogen gas will be produced at 298K & 1atm?

    asked by Christina
  138. statistics

    According to the book Are yoy Normal?, 40% of all US adults try to pad their auto insurance claims to cover their deductible. Your office had just received 128 in insurance claims to be processed in the next few days. What is the probability that half or

    asked by yo
  139. Algebra

    I was given this problem to solve and no matter what order I multiply the variables I don't get the right answer. 27xy, when x=12.7 and y=100.4 the answer is 34,427.16 I cannot figure out the way to achieve this answer. I find problems with variable fairly

    asked by Aria
  140. Statistics

    Before i state my question I would like to note that I have to do a one tailed test but i don't know how to with the information given. I need a standard deviation, i need a mean, but do i use the mean for yrs drivin or number accidents. Please explain 2.)

    asked by Johnathon
  141. Private Property

    Hi. Im learning about economics, and I am not really strong in this area. So I would like to know what this term means. Private Property. Please try to simplify it as much as possible so that I understand.

    asked by Anonymous
  142. soc 110

    a. In urban areas across our country, identify at least three technologies that Americans have become dependent upon in their daily lives. b. Using the technologies that you described in (a), discuss at least one advantage and one disadvantage that people

    asked by TANYA
  143. Command Economies

    All I kind of know is that, the government controls the Command economies, they direct people on what to produce and what not. In the command economy what goods and services should be produced? I didn't really understand this, so I wrote down...Shoes,

    asked by Anonymous
  144. PHYSICS

    The input piston of a hydraulic press is 20mm in diameter, and the output piston is 10mm in diameter. an input force of 1.0N will produce an output force of: a- 0.25N b- 0.50N c- 2.0N D- 4.0N

    asked by DMITRIC
  145. Free Market Enterprise

    This economy focuses on Competition. What goods and services should be produced? Electronic gadgets, Clothing, accessories, perfumes, vehicles, Spa treatment, Cellphone, toothpaste, chocolate milk. How should these goods and services be produced?

    asked by Anonymous
  146. Public Sector/Private Sector

    Would like to know what Public and Private Sector Mean. In simplified terms please and thank you.

    asked by Anonymous
  147. Definition

    What does innovation mean? Does it just mean a new idea?

    asked by Anonymous
  148. Free Market

    Would please like to know about Free market in simplified Terms. Does it run without competition?

    asked by Anonymous
  149. Economic Equity

    What does Economic Equity mean? I tried to come up with a simple definition for me to understand below. Economy in which the sharing of resources or goods among the people is considered fair. Is that it?

    asked by Anonymous
  150. Economic security

    I don't really understand this term. Could you please explain it to me.

    asked by Anonymous
  151. Chemistry (please check)

    1)Which of the following compounds has the largest lattice energy: LiF LiCl NaF NaCl 2)Which of the following compounds has the most ionic character in its bonding: CaBr2 GeBr4 KBr GaBr3 3)Using the electronegativity table on page 364 of your text, which

    asked by Abi
  152. Economic Stability

    What does this term mean? Does it basically mean.. The rate at which the general level of prices for goods and services is rising. Could you sort of simplify it a bit more. What does general level mean?

    asked by Anonymous