Questions Asked on
May 17, 2011

  1. chemistry

    in the reaction 2Na + Cl2 --> 2NaCl how many grams of NaCl are produced when 25 g. of sodium reacts completely to form NaCl?

    asked by charlie
  2. Physics

    Suppose the stone is thrown at an angle of 32.0° below the horizontal from the same building (h = 49.0 m) as in the example above. If it strikes the ground 69.3 m away, find the following. (Hint: For part (a), use the equation for the x-displacement to

    asked by anne
  3. chemistry

    A galvanic cell has an iron electrode in contact with 0.20 M FeSO4 and a copper electrode in contact with a CuSO4 solution. If the measured cell potential at 25 degrees Celcius is 0.61 V , what is the concentration of Cu2+ in the CuSO4 solution?

    asked by jeff
  4. Trig/Pre-Calc

    $2500 is invested in an account at interest rate r, compounded continuously. Find the time required for the amount to (a) double and (b) triple. r=0.085 I know you use the formula A=Pe^rt and you would start by setting it up as follows:

    asked by Bradley
  5. US history

    The decision of the supreme court in the 1896 Plessy v. Ferguson case is important because it 1) upheld the legality of sharecropping 2) denounces the violence of the Ku Klux Klan 3) approved separate but equal facilities for black Americans 4) declared

    asked by Alz
  6. CHEMISTRY

    If one added 130 mL of 2 M NaOH to 1 L of a buffer composed of 2.3 M NH3 and 3.2 M NH4Cl, what would be the pH of the resulting solution? The Kb of NH3 is 1.8 × 10−5.

    asked by Anna
  7. biology

    i need a short story about a ecosystem that is disturbed and undergoes succession

    asked by shelby
  8. math

    you are standing 15 feet from a statue the angle of the elevation from eye level to the top of the statue is 27 degrees, and the angle of depression to the base of the statue is 18 degrees. How tall is the statue? show work

    asked by z
  9. chemistry

    when 50 ml of an HNO3 solution is exactly neutralized by 150 ml of a 0.50 M solution of KOH, what s the concentration of HNO3

    asked by bee
  10. chem

    Two hundred grams of a substance requires 0.52 kJ of heat to raise its temperature from 25°C to 45°C. q = mCT. Mass (m) is in grams. Temperature is in degrees Celsius.

    asked by Pat
  11. MATH

    There are 231 cubic inches in a gallon. A large juice can has a diameter of 6 inches and a height of 10 inches. How many gallons of juice does the can hold? Round your answer to the nearest tenth. I am clueless please please help me!!!!

    asked by audrey
  12. chemistry

    Calculate the equilibrium constant for 2CH3OH(l)+3O2(g)->2CO2(g)+4H2O(l)

    asked by sara
  13. Chem

    What is the change in enthalpy when 250 g of steam condenses at 100oC? (Hv = 40.67 kJ/mol)

    asked by Pat
  14. Physics

    In a physics lab experiment, a spring clamped to the table shoots a 18 g ball horizontally. When the spring is compressed 20 cm, the ball travels horizontally 4.9 m and lands on the floor 1.3 m below the point at which it left the spring. What is the

    asked by Anne
  15. math

    a certain sum of money atcompound interest becomes Rs7396 in 2 years and Rs7950.70 in 3 years.Find the rate of interest

    asked by susanta
  16. Physics

    In a physics lab experiment, a spring clamped to the table shoots a 18 g ball horizontally. When the spring is compressed 20 cm, the ball travels horizontally 4.9 m and lands on the floor 1.3 m below the point at which it left the spring. What is the

    asked by Kate
  17. Geometry

    A satellite has-recently been placed in a nearly circular orbit 2000 kilometers above the earth’s surface. Given that the radius of the earth is approximately 6400 kilometers and that the satellite completes its orbit in 12 hours, calculate the speed of

    asked by Keenan
  18. english

    what is the allusion. Last year our school’s finances were in shambles. Overspending and little control over money has resulted in a situation where there is no money for new books or supplies. School officials are even wondering where they will find the

    asked by joel
  19. math

    a dollar bill has an area of 15.86 square inches. If a dollar bill is 2.6 inches long, how wide is it? Please explain how you got please!!!

    asked by audrey
  20. Life Orientation

    Human or environmental problem xenophobia impacts on the community within South Africa.

    asked by Juliet
  21. math

    a back yard is shaped like a parallelogram with a height of 32 feet and a base of 100 feet. One bag of grass seed covers 125 square feet. What is the least number of bags of seed needed to seed the lawn? Also, please explain how you got it.

    asked by audrey
  22. Chemistry

    1) Determine the equilibrium constant, Keq, at 25°C for the reaction 2Br– (aq) + I2(s) ⇌ Br2(l) + 2I– (aq) My wrong answer: 7.6e-10 2) Aluminum metal is formed by the electrolysis of Al2O3 in molten cryolite. How many minutes are required to form

    asked by Pam
  23. teacher aide

    In the classroom, the reverse mainstreaming/inclusion technique is used A only with mildly retarded students B more often than the resource room for behavior disordered students C to place special needs students in the majority D effectively to teach math

    asked by Rosie
  24. Literature

    What role does fate play in the events of Romeo and Juliet? How are the young lovers victims of misunderstandings, miscommunications,and plain bad luck? How do these elements affect the way readers and audience members are affected by their story?

    asked by Elizabeth
  25. Trig/Pre-Calc

    The demand equation for a microwave oven is given by: p=500-0.5(e^0.004x) Find the demand x for a price of (a) p=$600 and (b) p=$300 Any help would be greatly appreciated.

    asked by Annonymous
  26. Calculus/Vectors

    Calculate the area of the parallelogram with sides consisting of the vectors: a = (1,2,-2) b = (-1,3,0)

    asked by Anonymous
  27. chemistry

    I need walked through this question, please. In testing for the efficacy of an antacid compound, 5.0g of hydrochloric acid is mixed with 24.0g of magnesium hydroxide. Is this enough base to react with all the acid?

    asked by me
  28. LIT

    Dresden was a German city destroyed by the allies in WWII. Which of the following most likely describes the allusion to Dresden? A Dresden was the center for the production of weapons that supported the German war effort. B Dresden was a city rich with old

    asked by joel
  29. Math

    Alice, Beth, and Charlene start climbing a staircase, each with her left foot on step 1 and then her right foot on the next consecutive step. Alice climbs one step at a time, Beth two steps at a time, and Charlene three steps at a time. Each lands on the

    asked by Diana
  30. probability and statistics.

    I am preparing for a chapter test in my prob/stat class and since my teacher no longer cares about our class and the textbook is as confusing as a foriegn languaga, i am in need of help. i am trying to review an old quiz ao here is one of the questions.

    asked by penny lane
  31. maths

    construct a triangle KMN with angle LMN= 60 degrees, MN = 9cm and LM 7cm. measure and state size of

    asked by cilco
  32. determine approximate profit(help plz:[)

    The equation y= 0.003x - 0.50 can be used to determine the approximate, y in dollars, of producing x items. How many items must be produced so the profit will be at least $2370? could anyone help me out?this is for my exam, ireally needto know how to get

    asked by ashh
  33. math

    a cylindrical barrel is 2.8 feet in diameter and 8 feet high. If a cubic foot holds about 7.5 gallons of liquid, how manygallons of water will this barrel hold? Please explain throughly

    asked by darrel
  34. Maths

    The 5th term of an exponential sequence is 4 and of 2nd term is 35(¡)find the 3rd term (¡¡)the 6th term (¡¡¡)the sum of the first 5th term?

    asked by Job
  35. english

    What value does Macbeth put on his soul in Act III, Scene I of "Macbeth" by Shakespeare.

    asked by Jenna
  36. teacher aide

    Please tell me if I have this one right A common symptom of a behavior disorder is A spina bifida B amblyopia C tardiness D withdrawal I'm torn between two of them. I think its A I'm I right.

    asked by Sam
  37. statistics

    Consider a binomial experiment with 20 trials and probability 0.45 on a single trial. Use the normal distribution to find the probability of exactly 10 successes. Round your answer to the thousandths place.

    asked by coya
  38. maths

    At what time do the digits of a digital clock have the greatest sum? The answer is not 12:59. it is other than this

    asked by shiva
  39. geometery

    Triangle TUV is the midsegment triange of triangle ABC. Which angel does not necessarily measure 40 degrees?

    asked by samantha
  40. math

    There is a water reservoir beneath a circular garden to supply a fountain in the garden. The reservoir has a 26-inch diameter. The garden has a 12-foot diameter. How much of the garden doesn't contain the water reservoir? I have no idea how to do this

    asked by audrey
  41. maths

    At what time do the digits of a digital clock have the greatest sum? The answer is not 12:59

    asked by shiva
  42. math

    Cassidy says that capacity is the same as the amount.Did you agree? Explain why or why not.

    asked by Kyara Vargas
  43. Math

    I tried to solve this but can't seem to find a procedure to solve this: To measure the height of Lincoln's caricature on Mt. Rushmore, two sightings 800 feet from the base of the mountain are of Lincoln's face is 32 degrees and the angle of elevation to

    asked by Amy~
  44. Math

    This is another application that I didn't understand A blimp, suspended in the air at a height of 500 ft, lies directly over a line from Soldier Field to the Planetarium on Lake Michigan. If the angle of depression from the blimp to the stadium is 32

    asked by Amy~
  45. math

    Sammy’s Pizza Shop offers 2 different pizza crusts, 3 different cheeses, and 8 different toppings. How many combinations of pizza can be ordered?

    asked by jackee
  46. Calculus

    An isosceles triangle has perimeter 64m. Find the dimensions of this triangle that make its area a maximum

    asked by John
  47. english

    I need help on Eve Merriam (she is a poet). I have to answer the following questions: 1)Does the poet display similar themes in many different poems? Describe any reoccuring themes. 2)What was going on in the poet's lifetime? Did the time period the poet

    asked by dana
  48. Geometry

    Wilbur Wrong is flying his remote-control plane inn a circle with the radius 28 meters. He is holding the wire so that it is level with the ground. His brother, Orville Wrong, clocks the plane at 16 seconds per revolution. What is the speed of their plane?

    asked by Keenan
  49. lit

    Copán is one of the most impressive sites for ruins of the ancient Maya civilization. Situated in western Honduras, Copán is where the great Maya civilization flourished. Though other Maya ruins have been found in neighboring countries, no other quite

    asked by joel
  50. mAtH

    a cylindrical barrel is 2.8 feet in diameter and 8 feet high. If a cubic foot holds about 7.5 gallons of liquid, how manygallons of water will this barrel hold? Aghhhh! I completely don't get it!!

    asked by audrey
  51. math

    Charge Q coulombs at time t seconds is given by the differential equation:   0 C Q dt dQ R where C is the capacitance in farads and R is the resistance in ohms. Solve the equation for Q given that Q=Q0 when t=0. A circuit possesses a resistance of

    asked by Karl Haxell
  52. trigonometry

    express secA in terms of cotA? can you pleas say how to solve this??

    asked by aswathi
  53. Algebra :/

    A bank offers two checking plans anywhere charge .15 cents a check; accucheck cost .77cents a month plus 8 cents per check. For what number of checks will the accucheck plan cost less than anywhere check? Less than 11 checks? More than 11 checks? 11

    asked by Imagine
  54. Teacher

    Can someone help me with this problem. When working with behavior disordered children in the classroom, the teacher aide can modify behavior by A praising them whe they succeed B using the same teaching techniques for every student C underestimating what

    asked by Tony
  55. teacher aide

    In a regular school setting, learning challenged children are A always placed in classes with the mentally retarded B usually determined to be below average in intelligence C usually taught best in a resource room D never allowed to exert themselves in

    asked by Sam
  56. Physics

    A player kicks a footbal with a velocity of 27 m/s at an angle of 31° with the ground. How high does the ball travel?

    asked by Kelsey
  57. Algebra

    The function h is defined by h(x)=x^(2)-x. Find h(2x).

    asked by Miranda
  58. lit class

    what is the allusion in this passage my mom is a draconian monster. Amy cried in her best "victim" voice to her friend jessop. "She won't let me do anything fun. yesterday she made me study vocabulary words before I could go out with my friends. that where

    asked by mike
  59. geometry

    the measures of 2 supplementary angles have the ratio 2is to 3.find the measureof each angle?

    asked by aiza
  60. world history

    The great Muslim historian Ibn Khaldun saw history as a struggle between

    asked by Chelsea
  61. geometry

    A rectangle measures 6 inches in length by 9 inches in width. If the rectangle will be enlarged by 250%, what will be the lengths of the sides of the new rectangle? What percent bigger is the perimeter of the new rectangle, compared to the original?

    asked by Kalem
  62. Statictics

    What is the probability of tossing a number divisible by two, and the probability of tossing a prime number of a "Fair Die"?

    asked by Melvin
  63. Management

    The business I choose to do my SWOT Analysis on is Infinite learning Childcare Center. The five resources I used to obtain my information on the business strength, weakness, opportunities, and threats, are parent surveys, the company’s handbook,

    asked by Tina
  64. geometry

    A photographic negative 35mm long and 24mm wide is to be enlarge to make a picture 28.8 cm long.find the width of the picture?

    asked by mike
  65. algebra

    in 1991 the life expectancy of males in a certain country was 68.2 years. in 1995 it was 70.8 years. let e represent the life expectancy in year t and let t represent the number of years since 1991

    asked by ken
  66. Statistics

    The linear correlation coefficient, r, is a numerical measure of the strength of the relationship between two variables representing quantitative data.

    asked by EJ
  67. Algebra

    Use the Factor Theorem to determine whether x+2 is a factor of P(x)=2x^4+x^3-3x-9. Specifically, evaluate P at the proper value, and then determine whether x+2 is a factor. P(__)= x+2 is or is not a factor of P(x)____

    asked by Miranda
  68. math

    Calculate the IRR and NPV of this project utilizing a 12% discount rate and a 15% cap rate. Ms. Brown was able to secure a loan for $1,540,000, and an equity investor agreed to invest the remaining $660,000 in exchange for 20% ownership in the project

    asked by Anonymous
  69. writing

    i don't understand what u said, writeteacher. can you show me? Can u proofread and show me how to fix me my writing? Philip Malloy Have you ever watched the movie? In the story, “Nothing but the truth,” by Avi, a boy named Philip Malloy had many traits

    asked by hope
  70. heath economic

    most major health insurance policies have a deductable and coinsurance features. What are the purposes of such system? Are they necessary? What are the expected effects and problems that could arise as a result of implementing such system?

    asked by abd
  71. math!!

    a triangular road sign has a height of 8 feet and a base of 16.5 feet. How much larger in area is this sign than one with a height of 4 feet and a base of 8.25 feet? Please fully explain how you got this cause i'm really confused!!!

    asked by audrey
  72. Prob and Stat

    A tire manufacturer guarantess that its tires will last for at least 60,000 miles. If the tire fails earlier, the manufacturer offers a prorated replacement. Too many such replacements are bad for business, so the manufacturer tests tires at random to see

    asked by Angela
  73. math

    A perfectly cylindrical container standing upright with a top and bottom (an oil drum or coke can for example) has an empty mass of M and a height of H. It is filled with a liquid of uniform density of variable mass m up to height h. When the container is

    asked by Karl Haxell
  74. System Analysis and Designs - IT460

    I need help really bad since I am majorly stuck due to things happening in the family. My GPA thus far for this course is a 4.0, however, now I am stumped. Please complete the following projects using MS Word. Save the project as Unit 4 Project. Jesse

    asked by JMD
  75. math

    if freddy tosses a coin three times, what is the probability that the coin will turn up hesds,tails,heads, tails in that order? I came up with 1/2 correct? also the ratio length to the width of the alamo isabout 5to 3 if the width of the alamo is 63ft

    asked by jill
  76. geometry

    how long are the congruent legs of isosceles triangle if its base and altitude to the base are 12cm and 8 cm respectively?

    asked by mike
  77. ALGEBRA :/

    Two antles are complimentary. The sum of the measure of the first angle and half the second angle is 83. Find measure of angles. What is the measure of the smaller angle? What is the measure of the other angles?

    asked by Imagine
  78. chemistry

    A gas occupies 255 mL at 479.6 Torr and 21.0 °C. When the pressure is changed to 558.6 Torr, what temperature is needed to maintain the same volume?

    asked by Amy
  79. chemestry

    A gas is contained in a metal cylinder with a piston, so that the volume of the cylinder can change. If the gas initially occupies volume of 664 ml at 471 mmHg, what will be the volume if the temperature is kept constant and the pressure is changed to 408

    asked by jo
  80. Physics

    Calculate the electric field which must be applied vertically to hold an electron steady in the earth’s gravitational field. Assume that the charge to mass ratio of the electron is 1.758×1011 C kg-1 and that the acceleration due to gravity at the

    asked by Olivia
  81. vibration

    a uniform cantilever beam of the total mass ml has a concentrated mass M at its free end. determine the effective mass of the beam to be added to M assuming the deflection to be that of a massless beam with a concentrated force at the end, and write the

    asked by matt
  82. Geometry

    How do you calculate the volume of a right hexagonal prism. The height is 8cm and each section of base is 6cm. The answer is 748.2 CU I have been working on this problem for 30 minutes and cannot come up with the correct answer.

    asked by Mary
  83. geometry

    a segment of 35cm long is divided in 2 segment whose ratio is 3:4 how long is each segment?

    asked by mike
  84. lit

    What is the historical allusion? For the last several months, Rebecca had been working with her team on raising money in her neighborhood to donate to the hurricane Katrina Relief Fund. They were having a competition with groups to see who could raise the

    asked by joel
  85. math

    At the county fair, the apple pies are lined up side-by-side for juding on a 6-foot table. Each pie has an area of 50.24 inches squated. How many pies are on the table? I don't understand how to solve this problem. Please explain and show me how

    asked by audrey
  86. geometry

    what are 8 equal expresions for 48 times 8 and 144 divided by 12

    asked by Anonymous
  87. college

    sodium metal dissolves in liquid mercury to form a solution called a sodium amalgam. the densities of Na(s) and Hg(l) are 0.97g/mL and 13.6g/mL. a sodium amalgam is made by dissolving 1.0 mL Na(s) in 20.0 mL Hg(l). the final volume is 21.0 mL. What is the

    asked by Amy
  88. decorating today

    Historically, who originally influenced the style and trends of art, architecture, furniture,and fashion? B upper class ? I think! I could no find the answer in the study does anyone know the page I can find the answer on?

    asked by raven
  89. math help please !!!

    i really neeed help, i have no idea how to answer this question ! i tried everything i know! A stone is thrown off a cliff. it reaches a maximum height of 30m after 2 seconds, then falls into the water below. it hits the water after 5 seconds a) how high

    asked by melissa
  90. physics

    how would you measure the resistance of an electrical device, such as a lamp, by the voltmeter-ammeter method?

    asked by kriti
  91. maths

    iam a 2 digits number, one of my unit is 2, and i am less than 20. what number am i?

    asked by ogun
  92. Life orientation

    Critically discuss ways in which the human or environmental problem impact on community about floods

    asked by Bafedi
  93. algebra

    erika has received scores of 82, 87, 93, 95, and 90 on math quizzes. What score must Erika get on her next quiz to have an average of 90?

    asked by aniiiii
  94. science

    list two things green plants need to grow and thrive

    asked by justin
  95. chemistry

    Fe2O3 + CO = Fe+ CO2 if 3.5kg of CO are available to react, how many mole of CO2 are needed?

    asked by haldo
  96. math

    a triangular road sign has a height of 8 feet and a base of 16.5 feet. How much larger in ares is this sign than one with a height of 4 feet and a base of 8.25 feet? Please explain fully and show how you got the answer.

    asked by audrey
  97. geometry

    find the area of a parallelogram with diagonals of lengths 10 inches and 22 inches that intersect at a 65 degrees angle.

    asked by Joe
  98. Physics

    Kathy is changing the tire of her car on a steep hill 20 m high. She trips and drops the 10 kg spare tire which rolls down the hill. What is the speed of the tire at the top of the next hill if the height of the hill is 5 m high?

    asked by Kelsey
  99. Maths 7th grade

    How do you factorise?

    asked by Z
  100. statistics

    I've got to do a project in my math statistics unit. Surveying people on a resturant. How do I do a draft on poster paper?

    asked by Hunter
  101. FRENCH

    Imagine that you are in a restaurant crtic for a newspaper in Paris. You choose the Prix Fixe menu. Tell how much it costs in Euros, and describe the choices at this restaurant for the entrée, main dish and dessert. Finally, state what you tasted and tell

    asked by Sydney
  102. intergrated math

    Solve the equation for x. Write the solution set 3x2 + 5x2 – x – 7x2 = 0

    asked by aj
  103. Algabra

    2 cars leave town at the same time going in two different directions. one travels 44m/h and other at 55m/h. how long will they be 297 miles apart?

    asked by Tori
  104. Chemistry

    How many L of N2 gas are produced at STP when an airbag inflates if the airbag contains 132g of sodium nitride?

    asked by Kathy
  105. Corporate finance

    Determine the approximate percentage appreciation or depreciation of the NASDAQ Composite, Dow Jones Industrial Average, and the S&P 500 for the last 12 months and provide these figures. In addition to showing the percentage change of each index for the

    asked by LaToya
  106. math

    The displacement s (in metres) of a body in a damped mechanical system, with no external forces satisfies the following differential equation: 6 3 2 2    dt ds dt d s where t represents time in seconds. If at time t = 0, s = 0 and  5 dt ds m/s,

    asked by Karl Haxell
  107. Vectors/Calc

    Calculate the area of the parallelogram with sides consisting of the vectors: a = (1,2,-2) b = (-1,3,0)

    asked by Anonymous
  108. Chemistry

    I found the empirical but i don't know how to get the empirical formula for NH2. can anyone help?

    asked by nalleli
  109. Logic and Design

    You will need to design an application that it will prompt a user for their hourly pay rate, their hours worked, and whether they are single, married, divorced, or widowed. It will then calculate their gross and net pay. If they work more than 40 hours,

    asked by Harvey
  110. Math

    "Solving a system involving three unknowns." 3d+e-2f=-14 2d-3e+4f=-23 5d+4e-10f=-13

    asked by Anonymous
  111. literature

    4. How do the villagers respond to the spider girl? What do you think their response symbolizes -- how does it relate to the rest of the story?

    asked by Anonymous
  112. trig

    csc^2x secx/sec^2x+csc^2x

    asked by EJ
  113. Vectors/Calc

    Find the area of a triangle with the given vertices: (7,3,4)(1,0,6)(4,5,-2)

    asked by Anonymous
  114. chemistry

    How would I idenify alcohol from other functional groups?

    asked by Nick
  115. Geometry

    find the area of a parallelogram with diagonals of lengths 10 inches and 22 inches that intersect at a 65 degrees angle

    asked by Joe
  116. literature the novel

    allegory of the call of the wild

    asked by Lydia
  117. Geometry

    a line RS is perpendicular to plane p at R. If T is a second point not on. Can RT be perpendicular to plane P? Lines AB and LM are each perpendicular to plane P. Are AB and LM coplanar? Plan P is perpendicular to AB at B. Plane Q intersects AB at P. Can Q

    asked by Camile
  118. chemistry

    What is the structural formula of malathion,parathion?

    asked by joy
  119. sociology

    Hi This is my essay question Please can you read my essay below and critque it. "Durkheim argues that society is held together by sets of norms which are transmitted to us by social institutions like the family and schools, and that this process

    asked by Jane
  120. Maths

    1/3 of the total barn animals were chickens and rest were pigs there were total 20 legs. How many were pigs?

    asked by Nadir
  121. Engineering Maths

    A perfectly cylindrical container standing upright with a top and bottom (an oil drum or coke can for example) has an empty mass of M and a height of H. It is filled with a liquid of uniform density of variable mass m up to height h. When the container is

    asked by Karl Haxell
  122. Maths

    The distance from TDC (top dead centre) for the pin is given by x when the crank is at angle . Hence : i) Give an equation for x in terms of the other variables (r, L and ). ii) If the crank rod is rotating at a constant value of ω calculate the

    asked by Karl Haxell
  123. arithmetic

    Write and solve an expression to find the nth term of each arithmetic sequence... 3,7,11,15 n=8

    asked by Olyvea
  124. Government

    what is the strict constructionists attitude toward national power

    asked by Maria
  125. psychology

    I have trouble understanding whats the three psychological models of mental illness include etiological explanation and the principle therapeutic modality that evolved from the model. Can anyone help me? Thanks

    asked by Derek
  126. math

    a dollar bill has an area of 15.86 square inches. If a dollar bill is 2.6 inches long, how wide is it? Also, please explain how you got the answer because i am very confused.

    asked by andrew
  127. geometry

    Given that ABC 53-x with a leg of 28 ~ DEC, x+3 with a leg of 4 find the value of x. If necessary, round your answer to two decimal places.

    asked by bri
  128. Estimating Using Confidence Intervals

    An investor wants to determine the true average yield on a selection of investments from the Business week 1000. Suppose the investor draws a random sample of (n=40 firms) and finds an average yield on investment of (xbar = 5.00%) and a sample standard

    asked by Angela
  129. Math

    "Solving a system involving three unknowns." We're supposed to use substitution or elimination. 3d+e-2f=-14 2d-3e+4f=-23 5d+4e-10f=-13

    asked by Jam
  130. Math

    a line RS is perpendicular to plane p at R. If T is a second point not on. Can RT be perpendicular to plane P? Lines AB and LM are each perpendicular to plane P. Are AB and LM coplanar? Plan P is perpendicular to AB at B. Plane Q intersects AB at P. Can Q

    asked by Camile
  131. physics

    if you have an object of mass 5.4 g and volme 2.7 cm3 would the object float in water

    asked by Kimberly
  132. decorating today

    Does anyone have the answers to this test?

    asked by raven
  133. English

    Can you please check these few sentences for me? The first two are on the same theme. 1) At the moment there are two types of teenagers (or teenage groups) in Italy. The former likes wearing large T-shirts and baggy jeans whereas the latter likes wearing

    asked by Henry1
  134. maths

    The variation in a population is modelled by the recurrence relation (Jn+1 0.9257 0.0208) (Jn) + (0.014) (An+1 0.0661 0.9767) (An) (0.056) where Jn and An are the sizes, in millions, of the subpopulations of juveniles and adults, respectively, n years

    asked by albert
  135. decorating today

    The answers are a. interior designers b. Upper class c. Architects d. artists I think it is b

    asked by raven
  136. literature

    novel phrase the domesticated generation fell from him ?

    asked by Lydia
  137. physics

    A typical smaall laser has a power of 0.5mW= 5*10^-4J/s. How many photons are emitted each second by the laser?

    asked by Morgan
  138. physics

    What emf is required to cause 12 amperes to flow through a resistance of 7.2 ohms?

    asked by nabil
  139. Algebra

    I need to multiply the rational expression (q-2/4)(-2q/q+5) and leave it in factor form. Please someone help.

    asked by Tracy
  140. English

    Can you please check these sentences for me, please? Thank you very much. 1) There are other teenagers who like wearing baggy jeans. You'll listen to the test twice. 2) You are asked either to cross the correct alternative (among three) or to fill in the

    asked by Henry1
  141. Statistics

    The value of the correlation coefficient can be between 0 and 1.

    asked by Matt
  142. business

    2. Individual Assignment: Functions of Management Paper • Prepare a 700- to 1,050-word paper in which you define the four functions of management (planning, organizing, leading, and controlling). In your paper, include an explanation of how each function

    asked by Marie
  143. chemistry

    please me,,,,,its urgent...what is the structural formula of the toxaphene?

    asked by joy
  144. science

    monarch butterflies migrate from newyork at a certain time of the year. how migration helps butterflies survive?

    asked by maria
  145. chemistry

    Find the entropy of mixing of 80% N2 and 20% O2 in air

    asked by Anonymous
  146. chemistry

    Find the entropy of mixing of 80% N2 and 20% O2 in air

    asked by Anonymous
  147. trig

    Use a graph of the cosecant function to find the value of theta for which csc theta equals 1.

    asked by Amanda
  148. geometry

    how long are the congruent legs of isosceles triangle if its base and altitude to the base are 12cm and 8 cm respectively?

    asked by mike
  149. math

    square root of 80?

    asked by john
  150. Sampling Distribution

    It was reported by the National Forensic Center in the Guide to Experts Fees, 1998-99 that the average fee of forensic accountants for court testimony was 1500. Assume that the population standard deviation is 600. What is the probability that, in a random

    asked by Angela
  151. English

    Could you please check these sentences for me? Can you help me express the following ideas better? Thank you. 1) If you don't get a "passed" out of your last written test you'll have to take a make-up exam in English August (to make up for your low mark in

    asked by Henry1
  152. geometry

    how long are the congruent legs of isosceles triangle if its base and altitude to the base are 12cm and 8 cm respectively?

    asked by john
  153. Math

    What does the solution of a system of equation mean? Give one example

    asked by s
  154. physics

    The ionisation potential of atomic hydrogen is 13.6 eV. A strong emission line in the spectrum of atomic hydrogen occurs at a wavelength of 121.6 nm. Deduce the initial and final values of the quantum number n for this spectral line.

    asked by Olivia
  155. Science

    List advantages of the Bay of Fundy power plant

    asked by Rob
  156. math

    Can the word "RENTS" be played from the letters A, E, O, N, R, S, T as the first move in a Scrabble game? Explain your answer.

    asked by kozy
  157. Algebra

    The point (-1,0) lies on a circle whose center is at (-6,5). Find an equation of this circle

    asked by Jennifer
  158. Insurance form prep

    The purpose of Coordination of Benefits clauses is to? a.avoid overpayment b.make the completion of ther CMS-1500 easier c.outline the order in which insurance companies are to be paid d.make sure that physicians receive 100 percent of what they charge

    asked by mary Ann
  159. chemistry

    which substance , glucosa or sodium chloride, will produce more freezing point depreccion whent added to equal amounts of water

    asked by lola
  160. geometry

    what is the ratio of 2 segments where the length of one is 8cm while that of the other is 4ocm?

    asked by mike
  161. math

    A ladder is 25 ft long leans against a wall. If its foot is 10 feet from the wall,how high does it reach the wall?

    asked by aiza
  162. geometry

    the sides of a triangle is 9,12,15cm..Find the sides of a similar triangle if the longest side is 20 cm

    asked by mike
  163. english

    at what point does abigail first began feeling cold?what effect does this event have on danforth?

    asked by jose
  164. maths

    The mean weight (1.0042kg)of the contents of samples of 30 bags of sugar has standard error 0.008kg. Choose the option that is closest to the probability, to three decimal places, that the mean weight of the contents of samples of 30 bags of sugar will be

    asked by albert
  165. maths

    f(x)=ln(e^x-e^-x), x>0 By applying in turn the Composite and Quotient Rules, find derivative and second derivative. Thanks.

    asked by albert
  166. Prob and stat

    A survey asked people to respond to the statement "I will begin my shopping at the last minute." Thier responses are categorized below. Admitted last-minute shoppers by age group Last minute shopper, under 25, 25 to 44, over 44 Yes, 510, 420, 308 No, 620,

    asked by Angela
  167. writing

    Which of the following is true of the memo format? A. There is a closing B. Text is handwritten C. Paragraphs are aligned with left margin D. Language is always informal and jargon is always acceptable. I'm stuck between B and C?

    asked by anthony
  168. CEM 122

    What is the purpose of the "blank" in a experimental analysis?

    asked by Liz
  169. Grammar

    1. Which of the following sentences does NOT employ correct word usage? a. We had to travel several miles further into the Arkansas Ozarks to locate the Buffalo River. b. Because this river is only 130 miles long, many people are surprised that it has been

    asked by anthony
  170. chemistry

    The unit cell of palladiu m is a cube that is 389. 03 pm on a side. There are 4 Pd ato ms in the unit cell. Calculate the density of palladium in grams per cubic centimeter.

    asked by James
  171. chemistry

    What is the formula weight for Epsom salt?

    asked by James
  172. math

    Solve the equation for x. Write the solution set -4x + x2 – 9x + 6x = 0

    asked by aj
  173. Spanish for Mina

    Please don't forget the corrections on the original Spanish post. It's back at least 3 pages by now. Thanks for the English and I can now correct it to agree with your English: (Look for corrections, additions, etc. within parentheses.) No puedo ir a

    asked by SraJMcGin
  174. exp in math

    divide in the indicated base 3 212 5 / 5

    asked by renee
  175. math

    how do you use the numbers 4, 5, 9, 7, and 21 to get the number 23 (using it in a number sentence) i cannot get it and its driving me crazy! please help

    asked by k
  176. math

    terry got 40% of his 3 pointers what is the probability that out of 3 shots he makes 2 of them

    asked by Anonymous
  177. mnm

    Write one paragraph explaining the key differences between the four types of writing (summary, analysis, synthesis, and evaluation).

    asked by Anonymous
  178. math

    Multiply using duplication and mediation 8 x 169

    asked by nichole
  179. math

    find the compund interest on Rs 15000 at 6% for one and half years,the interest payable halfyearly.

    asked by susanta
  180. chemistry

    What is the structural formula of malathion,parathion?

    asked by joy
  181. chemistry

    please me,,,what is the structural formula of endosulfan?

    asked by joy
  182. chemistry

    please me,,,,,its urgent...what is the structural formula of the toxaphene?

    asked by joy
  183. MATH

    divide in the indicated base 2 ___ 3 /121 3

    asked by Anonymous
  184. geometry

    a ladder leaning against a vertical wall has its top 8m from the level ground and whose foot is 4m from the wall.how long is the ladder?

    asked by aiza
  185. Math

    Divide. Express your answer in simplest form. 1 3/5 , 1/4

    asked by Jessica
  186. HCS 325

    In the role of a health care manger, you are expected to respond to daily urgent and emergency situations as they arise by mobilizing your staff and available resources to attain specific objectives. How would you describe the function of control involved

    asked by sassy
  187. To "liz" - English?

    I'm looking for scholarly articles on: Low-income and divorced families beliefs about their role in children's academic learning and the influence of neighborhood quality on adolescent's educational values and school effort. Look for scholarly articles

    asked by Writeacher
  188. geometry

    If two angles are complementary and the measure of one angle is 35 degrees, then the measure of the other angle is______ degrees.

    asked by Raven
  189. Algebra

    Find a polynomial f(x) of degree 3 with real coefficients and the following zeros. -1,3+i f(x)=

    asked by Rachal
  190. literature

    allegoryofcallof the wild

    asked by Anonymous
  191. law

    Which option (front-end solutions, double bunking, or back-end solutions) do you feel is the most effective in our correctional system? Explain your rationale.

    asked by sammyg
  192. Spanish

    I apologize for my previous question, the one with paragraphs in Spanish. I obviously have no idea what I'm doing. They make sense in English, but I'm having a hard time translating to Spanish. Thank you, Sra, for attempting to help. :] The first

    asked by Mina
  193. maths

    Choose the THREE options that define sequences that do not converge. Options A P0 = 40, Pn+1 − Pn = 2.8 Pn (1− Pn/300) (n = 0,1,2, . . .) B P0 = 100, Pn+1 − Pn = 0.7Pn (1− Pn/480) (n = 0,1,2, . . .) C P0 = 250, Pn+1 − Pn = 2.4Pn (1− Pn/420) (n

    asked by albert
  194. algebra2

    [x^9]^11/7

    asked by marilyn
  195. intergrated math

    Solve the equation for x. Write the solution set. 1. x(x – 2) = 0

    asked by aj
  196. math

    The distance from TDC (top dead centre) for the pin is given by x when the crank is at angle . Hence : i) Give an equation for x in terms of the other variables (r, L and ). ii) If the crank rod is rotating at a constant value of ω calculate the

    asked by Karl Haxell
  197. ^^Brand Extension^^

    wat does brand extension mean? cud u give me an example?

    asked by cassandra
  198. Grammar

    Which of the following sentences does NOT employ correct word usage? A. The rivers new status was publicized in a lot of newspapers and magazines. B. Soon the Buffalo River became more popular than many larger rivers. C. The differing amounts of rainfall

    asked by anthony
  199. chemistry

    1. Which of the following is a homogeneous mixture? a. Diamond b. A smoke cloud c. Ethanol d. Gasoline e. Muddy wate

    asked by James
  200. Grammar

    Which of the following does NOT employ correct word usage? A. The bluffs are so steep that they can't hardly be scaled, even by experienced climbers. B. Boats carefully thread their way among the tricky and sometimes dangerous rocks and rapids in the

    asked by anthony
  201. Physics

    what current will flow through a resistance of 11 ohms when the emf impressed acrosss the resistance is 2.8 volts?

    asked by Nilan
  202. Biology Help!

    what r Unstable elements that give off radiation what r Tiny vesicles that form when short chauns of amino acids gather together

    asked by Tranese
  203. math

    how would I find the liquid volume of a glass 6 inches tall and 3 inches round.

    asked by DEEK
  204. Math

    Is x^2 +4x + 4 + y^2 - 2y + 1 = 25 the equation of a circle? Explain why or why not.

    asked by Sara
  205. english

    What are three audience characteristics you think are important to identify when conducting an audience analysis

    asked by hamilton
  206. math

    Solve the equation for x. Write the solution set -x(x + 8) = 0

    asked by aj
  207. SraJMcGin

    Sra here are my corrections for the recent exercise. Je choisi le menu Prix Fixe qui coûte 26, 86 €. Yeah I want to say For the entree there is a choice between..( I had another dialouge, so I took this sentence from there: Voyons, en entée

    asked by Sydney
  208. Math

    Find a vector with magnitude 1 that has the same direction as the following vector U= -3i+7j

    asked by alex
  209. Math

    What is the least possible product for digits 1, 3, 5, 6, and 7 using all digits only once?

    asked by Anonymous
  210. English - Native speakers

    Hello! Can we say the following "The three of them are the best of friends" the best of friends?

    asked by Mark
  211. math

    what is the distance between a (0,0,0) b (2,7,-1)

    asked by teddy
  212. science

    I would like to know migration helps butterflies survive?

    asked by justin
  213. Math

    what is the difference between an equation and an inequality. Also could you give me a example of each

    asked by Karan
  214. ALGEBRA :/

    OMG.. help panicking, have a few questions.. alrite. 5[5m-(m+80]>-8(m-6) { m|m ? ? }

    asked by Imagine
  215. psy

    i need help

    asked by lana
  216. ALGEBRA :/

    Help !! I am lost !! 0.7(3x+4) >/ 1.3-(x+2)

    asked by Imagine
  217. social studies

    what are specific examples of inequality seen in the film?

    asked by luis
  218. math

    7 + x < 20 15x > 50 7 + 14x > 35 need help in solving

    asked by not too bright
  219. Math

    Explain the difference between square root functions

    asked by s
  220. social studies

    how have the rights of African americans improved since reconstrution?

    asked by luis
  221. nutrition

    definition of nutrition

    asked by som
  222. Geometry

    Four golf balls with radius 1 inch each have a total of how many cubic inches?

    asked by Mary
  223. Maths

    AB II CD meet at E find out the angle E.

    asked by Elizabeth
  224. social studies

    when did the allies finally attack germany

    asked by Anonymous
  225. strayer

    ACC422 – Intermediate Accounting II Learning Team D Assignment – Week 2 This assignment is worth a total of 75 points distributed evenly among the two problems. It will be graded based upon both the accuracy of your solutions (2/3) and effort (1/3).

    asked by April
  226. writing

    1. On an application form, you should write n/a next to any question that: A. doesn't apply to you B. you prefer not to answer C. you have answered on an attached sheet D. you think should not have been asked I'm stuck between A and B?

    asked by anthony
  227. personal finance

    what is the monthly payment on a 69,000 loan with a 12% interest rate compounded monthly

    asked by amy
  228. eplorations in math

    divide in the indicated base 5 / 111 8 8

    asked by renee
  229. science

    If an ammeter records 8 amperes and a voltmeter records 1.1 volts, the resistance of the conductor in the circuit is ___ ohms

    asked by Nilan
  230. law

    who are the beneficiaries in bail as I am in total misunderstanding of this question

    asked by shelley
  231. MATH

    multiply in the indicated base 14 5 x 4 5 ________________

    asked by Anonymous
  232. MATH

    Multiply in the indicated base 304 X 5 34 5 __________

    asked by Anonymous
  233. chem

    You have a series of four chemical reactions (1 2 3 4). How do you calculate the H2 if you know the other H values?

    asked by Pat
  234. math

    how do you find the volume of a parallelogram?

    asked by audrey
  235. social study

    how have the right of african americans improved since recontruction?

    asked by luis