Questions Asked on
August 7, 2013

  1. accounting

    After the closing entries are posted to the ledger, each revenue account will have a zero balance: a. a zero balance, b. a debit balance, c. a credit balance, or d. either a debit or a credit balance.

    asked by Anonymous
  2. Chemistry

    What is the electron pair geometry for NCL3?

    asked by mariana
  3. physics

    Two concentric conducting spherical shells produce a radially outward electric field of magnitude 49,000 N/C at a point 4.10 m from the center of the shells. The outer surface of the larger shell has a radius of 3.75 m. If the inner shell contains an

    asked by zandile
  4. physics

    Mary is driving a car of mass 900 kilograms toward the north with a velocity of 22 meters/second. Danny is driving his 900-kilogram car with a velocity of 15 meters/second toward the east. They collide and both cars move together afterwards. What is the

    asked by Anonymous
  5. Chemistry

    What is the electron pair geometry for NCL3?

    asked by mariana
  6. PM

    J. Wold. project manager of the Print Software, Inc., wants you to prepare a project network; compute the early, late, and slack activity times; determine the planned project duration; and identify the critical path. His assistant has collected the

    asked by kim
  7. chemistry

    calculate the wavelength of an electron m=9.11 x 10^-28 g moving at 3.66x10^6 m/s

    asked by trinh lowery
  8. Chemistry

    15. When chromium loses two electrons, its configuration changes to A. [Ar]4s1. B. [Ar]3d4. C. [Ar]4s13d5. D. [Ar]4s13d4. I'm guessing it's B but I just want to double check

    asked by Hannah
  9. Math

    A tax-exempt bond was recently issued at an annual 12 percent coupon rate and matures 20 years from today. The par value of the bond is $1,000. a. If a required market rates are 12 percent, what is the market price of the bond? b. If required market rates

    asked by Renee
  10. math

    Solve each equation by factoring v(squared) - 10v + 21 = 0

    asked by Help
  11. Algebra

    you deposit 3500 in an account that pays 4.5% annual interest, compounded monthly. How long will it take for the balance to reach 5000? Use formula A= P[1+(r/n)]^(ny) and use knowledge of logarithms.

    asked by Pat
  12. Chemistry

    7. Which of the following is true? A. Cesium is the most active group 1 metal, because its valence electron is held more tightly than the others in the same group. B. Group 1 elements are more reactive than the group 2 elements because they have more

    asked by Hannah
  13. Physics

    How is it that ships made largely of steel can float when the density of steel is much higher than the density of water? Why is it possible to make oil tankers much larger than other ships (and what happens when an oil tanker is unloaded?)

    asked by McKenzi
  14. Chemistry

    What is the Lewis structure formula, electron pair geometry and the molecular geometry for SO4^2-

    asked by rose
  15. Trig

    Given that csc θ = -4 and tan θ > 0, find the exact value of a. x b. sin θ c. cos θ d. r e. sec θ f. cot θ

    asked by Paula
  16. STATISTICS

    A study examining the relationship between fetal X-ray exposure and a particular type of childhood blood cancer found the following odds ratio (and 95% confidence interval) for the association: 2.44 (0.95 to 6.33). This result would likely be considered:

    asked by Susie
  17. math30

    The number of cellular phone customers of a particular telephone company increased by an average of 40%/a from 1994 to 1998. If there were 963 300 customers on January 2, 1998, then the number of customers on January 2, 1994, to the nearest hundred, would

    asked by alejandro
  18. Vacation Bible School

    I need help on a rebuses it's: I pear+3 apples Can u help me?

    asked by Callie
  19. Question

    Is this website safe?

    asked by Ashlee
  20. physical science

    I am having a little trouble with this problem. can someone please HELP! During a race, a runner runs at a speed of 6m/s. 2 seconds later, she is running at a speed of 10 m/s what is the runner's acceleration?

    asked by Selena
  21. Physical Science

    HELP WITH THESE PLEASE! If you ride your bike at an average speed of 4km/h and nee to travel a total distance of 28 km, how long will it take you to reach your destination? A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic

    asked by Audriana
  22. AP Lang/English

    I have to answer the question of who the audience is in Scott Russell Sanders "Inheritance of Tools" and I have no idea. Help please!

    asked by Anonymous
  23. maths

    1)a linear function is represented by f(x)=2x+7 which of the following functions would be parallel to that of the function above a)f(x)=2x-7 b)f(x)=x+7 c)f(x)=x-7 d)f(x)=-1/2x+7 e)f(x)=-1/2x-7 I choose b 2)water is pumped into an empty tank at a constant

    asked by nick
  24. english , reading & writing process

    One of the benefist to highlighting key pounts is that .

    asked by linda
  25. maths

    a roofer charges $25 per hour for himself and $15 per hour for his assistant. On a recent job the assistant worked 2 hours less than the roofer and the tot charge for labour was $290. Let r be the number of hours that the roofer worked. Which of the

    asked by nick
  26. english , reading & writing process

    One of the benefist to highlighting key pounts is that .

    asked by linda
  27. Chemistry/lab math

    A stock standard of urea nitrogen contains 20 mg/mL of urea nitrogen. How much stock is needed to prepare 100 mL of a 20 mg/dL working standard? Please help!

    asked by Anonymous
  28. english , reading & writing process

    One of the benefist to highlighting key pounts is that .

    asked by linda
  29. writing

    Explain what is wrong with the following sentence and revise as needed to correct the problems: " While repelling from the cliff, my backpack slipped and fell to the canyon floor."

    asked by james
  30. Math (please help Steve)

    A crippled rook can move on a chessboard in the following way: from a square, it can move to an adjacent square sharing a common side, and every two consecutive moves must be at right angles (i.e., the rook makes a 90∘ turn at every move). A cycle is a

    asked by Nick
  31. Chemistry/lab math

    A stock standard contains 140 Eq/L of sodium and 5 Eq/L of potassium. How would the working standard of 140 m Eq/L and 5 m Eq/L be prepared?

    asked by Anonymous
  32. Mathematic

    The value of the expression (5-7)(-8+4)/2-(-6) is A. -33 B. -28.5 C.7.75 D. 20.25 E. 23.5

    asked by Anonymous
  33. Mathematic...

    If /x/ = -x, then x mst be A. Positive B. Nonnegative C. Negative D. Nonpositive E. Zero

    asked by Anonymous
  34. Math

    (-2x-3+8x^2) divide by (1+4x)

    asked by BJ
  35. Lab math

    You are doing a red blood count with a standard dilution of 1/200. The area counted is 10 red squares in a Neubauer chamber. Under these conditions, what is the factor that would be used to determine the number of cells in the undiluted blood?

    asked by Anon
  36. Intro to Accountint

    If the income statement covered a six-month period ending on November 30, 2010, the third line of the income statement heading would read: a. Month Ended November 30, 2010. b. November 30, 2010., c. Six-month Period Ended November 30, 2010., or d. Month of

    asked by Anonymous
  37. Math 208

    Locate the point at which the two lines that intersect the numbers of 1750 and $15,750

    asked by Tay Blanton
  38. Math

    What is the ANSWER?? If /x/ = -x, then x mst be A. Positive B. Nonnegative C. Negative D. Nonpositive

    asked by Anonymous
  39. Accounting

    After the closing entries are posted to the ledger, each revenue account will have a zero balance: a. a zero balance, b. a debit balance, c. a credit balance, or d. either a debit or a credit balance.

    asked by Anonymous
  40. Math

    The value of the expression (5-7)(-8+4)/2-(-6) is The answer key says -33. ????????????

    asked by Anonymous
  41. math

    x is a positive integer and x-5 is negative. what is the greatest possibel value of x ?

    asked by Tomas
  42. math help

    S is the sum of n integers and A is their average. Which of the following statements is correct? (A) S=A+n (B) S=nA (C) A=nS (D) N=AS (E) None of these

    asked by Tomas
  43. Mechanics, Waves and Optics

    A crate with a total mass of 18.0 kg is pulled by a person along the floor at a constant speed by a rope. The rope is inclined at 20 degree above the horizontal, and the crate moves 20.0 m on a horizontal surface. The coefficient of kinetic friction

    asked by Anonymous
  44. chemistry

    A 25.0 mL solution of HCl has been spilt. It took 21.8 mL of saturated 2.5 M NaOH to neutralise the acid. What was the molar concentration of the acid?

    asked by sarah
  45. chemistry

    Can one calculate the number of moles of air? If so, calculate the number of moles in 1 kg of air (making sure your calculation, units and assumptions are fully explained); If not, explain why it is not possible to calculate the number of moles of air.

    asked by sarah
  46. MATH! continued.......

    if you could you please answer a from my previous question that would be greatly appreciated

    asked by Madeline
  47. Writing

    This time I hope I improve. Writing is a skill that must be practiced. In order to be good at writing I must read a lot, right? I won't survive in college if I am not able to write superfluos essays,right????? *Thank you,Writeacher for your patience. I

    asked by Anonymous
  48. maths

    x exceeds y by the same amount that 7 exceeds 2. If y is 16, what is the value of x ? (A) 18 (B) 19 (C) 20 (D) 21 (E) 23 [ not only answer ]

    asked by Tomas
  49. Mathematics

    1. 2/(2/3)+3/4/(4/5)= A. 1/5 B. 11/15 C. 47/60 D. 3 13/30 E. 12 2. If 2/5 of (2/3)/(5/6) is divided by 3/10, what is the resulting value? A. 1/15 B. 12/25 C. 8/15 D. 5/3 E. 125/27 3. Solve for x: 2x+3=5x-8 Are there two answers?

    asked by Anonymous
  50. math

    how do i find the length x of a right triangle,when one side is x+48(hypotenuse) and the other is 72.?????????

    asked by jaslene
  51. maths

    The price of mangoes ranges from 25 cents to 75 cents a piece. What is the greatest number of mangoes that can be bought with $3 ?

    asked by Tomas
  52. human services

    • Can we have client advocacy, a forum for conflict resolution, and agents for policy change without competing for limited dollars and resources? Why? What do you see as the most vital function?

    asked by ellie
  53. math

    pls help me out in dis ? dat says The 9th term of an Ap is 52 while d 12th term is 70 find d sum of it's 20th term?

    asked by Abisola
  54. Trig

    Given that cos θ = 5/13 and θ is in QIV, find the exact value of a. y b. sin θ c. sec θ d. tan θ

    asked by Paula
  55. Trig

    Given that tan θ = - (√3/8) and θ is in QII, find the exact value of a. r = b. csc θ c. cos θ d. cot θ

    asked by Paula
  56. STATISTICS

    You are performing a cohort study to look at risk factors for breast cancer in postmenopausal women. If the probability of developing breast cancer among smokers is .05 for the study duration, then if you sample 100 smokers, how many do you expect to

    asked by Susie
  57. STATISTICS

    Which of the following would increase the width of a confidence interval? Changing from a 99% to 95% confidence level. Increasing the variability of the outcome. Increasing the sample size. Removing an outlier from the data

    asked by Susie
  58. eng1511

    What type of text is the above passage,why do you say so?

    asked by eugene
  59. Math (please help steve)

    A crippled rook can move on a chessboard in the following way: from a square, it can move to an adjacent square sharing a common side, and every two consecutive moves must be at right angles (i.e., the rook makes a 90∘turn at every move). A cycle is a

    asked by Nick
  60. Math (please help steve)

    Circles Γ1 and Γ2 have centers X and Y respectively. They intersect at points A and B, such that angle XAY is obtuse. The line AX intersects Γ2 again at P, and the line AY intersects Γ1 again at Q. Lines PQ and XY intersect at G, such that Q lies on

    asked by Nick
  61. Calc

    What is the least amount of material that can be used to make a soup can with circular base and closed top with capacity 6 cubic inches?

    asked by Anonymous
  62. Physics

    A radioactive substance decays from 2.0kg to 1.6kg in 156 days. How much will be left after 201 days?

    asked by Alice
  63. Physics

    A radioactive substance decays from 2.0kg to 1.6kg in 156 days. How long would it take to decay to 1.1kg?

    asked by Alice
  64. algebra

    what is 7x-9y=13 and 9x+7y=91 elimination method

    asked by beverly
  65. child psychology in general

    the main problem with informal theories is they are based on? a.bias b.emotion c.tradition rather than study my answer is c

    asked by susue
  66. Statistics

    A stationary store has decided to accept a large shipment of ball-point pens if an inspection of 20 randomly selected pens yields no more than two defective pens. a) find the probability that this shipment is accepted if 5% of the total shipment is

    asked by Elayna
  67. math

    An object with mass m is attached to a string and the other end of the string is attached to a peg at the center of a level table. The object is set into uniform circular motion around the peg. The radius of the motion remains constant (the string does NOT

    asked by john
  68. math

    Trigonometry - determine the area of a parallelogram in which 2 sides are 10 and 13 and the angle between them is 55

    asked by sue
  69. physics

    an object is projected at an angle of 60 degrees to the horizontal with an initial kinetic energy of 2000J.the object reaches the highest point.determine i)kinetic energy ii)potential energy at the highest point

    asked by linges
  70. algebra

    y2+yt-12t2

    asked by Anonymous
  71. world history

    identify and describe two ways in which American federalism has changed since the ratification of the constitution

    asked by heather
  72. Writing

    Please give me an ACT prompt.

    asked by Anonymous
  73. social science [geography]

    how many times zones are there in world?

    asked by arushi
  74. Math

    A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.1 cross 102 µm.

    asked by Rex
  75. Mathematic

    2/(2/3)+3/4/(4/5)= The answer key explains it like this: 2/(2/3)+3/(3/4)+4/(4/5)=2x3/2+3x4/3+4x5/4= 3+4+5=12 *I do not understand how the answer is 12. If 2/5 of (2/3)/(5/6) is divided by 3/10, what is the resulting value? The answer key explains it like

    asked by Anonymous
  76. chemistry

    calculate the wavelength of an electron m=9.11 x 10^-28 g moving at 3.66x10^6 m/s

    asked by trinh lowery
  77. math

    In polar coordinates, the parametric equations x=6+cosθ and y=sinθ represent a circle Γ1. In Cartesian coordinates, there is a circle Γ2 that is externally tangent to Γ1, tangent to the y-axis, and centered at (12,sqrt(a)). What is the value of a?

    asked by Anonymous
  78. math

    A circle Γ is tangential to the x-axis and also internally tangential to the circle with radius 14 centered at C=(0,28). Given that the center of Γ is (7,a), what is a?

    asked by Anonymous
  79. english

    can you tell me parts of speech for yesterday in : i went to new york yesterday

    asked by R S Telagathoty
  80. Calc

    Let A(x)=∫x^(2),∞; (e^-t/t)dt for x>0. Find A'(x)

    asked by Anonymous
  81. science

    what are the causes of omnivores dilemma?

    asked by pokemonranger01
  82. Math

    the length of a rectangle is twice its width w. what is the algebra expression

    asked by Emilie
  83. science

    If you have 10 lbs shrimp at 80 deg F how much ice would it take to reach 50 deg F in 10 minutes?

    asked by bill
  84. STATISTICS

    A particular diagnostic test for disease X has a sensitivity of 90% and a specificity of 90%. What is the negative predictive value of the test? 90% 10% 1% 18% It cannot be determined from the information given.

    asked by Help please!!!
  85. Math

    40% of what is 32?

    asked by EM
  86. Earth Space

    Which branches of earth science would the hydrosphere interact with? I said biosphere, atmosphere, and geosphere. Is that correct?

    asked by Bryce
  87. MaThS

    Determine the angle between the line y+x=3 and the line x=y+1/2

    asked by Milton
  88. children who require special treatment

    mr.ames is married and has two children.he abuses alcohol.a family therapist would classify mr ames family as have a sick family pattern of a ? a.weak father b.2nd class family c.malevolent mother d.soluble dad my answer is d

    asked by susue
  89. Math

    As of Tuesday, August 6th 2013, what fraction of their games have the Red Sox won?

    asked by Anonymous
  90. English

    Do these work? We have to pick quotes from a book I read. Do you see these as representing the chosen items? Bravery: (This quote talks about how she is going to plead innocent,knowing she will die anyway for being a witch) “If I do not do this thing,

    asked by Bryce
  91. geometry

    RS=8y+4 ST=4y+8 RT=15y-9 a.) what is the value of y? b.)find RS, ST, AND RT

    asked by Erin
  92. Math

    Calculate the length of the path over the given interval: c(t) = (3t^2, 4t^3), 2

    asked by Ali
  93. Math

    Calculate the length of the path over the given interval: (sin6t, cos6t), 0

    asked by Ali
  94. Math

    A particle travels along the curve c(t) = (6t^3-6, 7t^2-4). If time t is measured in seconds and if the coordinates are measured in meters, then what is the particle's speed at time t=5?

    asked by Ali
  95. Math

    What is 6 percent of 229,000

    asked by Helen
  96. math (please help!)

    What is the sum of all the constants k such that |x^2−169|−x−k=0 has three distinct real roots?

    asked by Nicholas
  97. physics

    Mary is driving a car of mass 900 kilograms toward the north with a velocity of 22 meters/second. Danny is driving his 900-kilogram car with a velocity of 15 meters/second toward the east. They collide and both cars move together afterwards. What is the

    asked by Anonymous