Questions Asked on
January 31, 2009

  1. statistics

    Data on number of days of work missed and annual salary increase for a company's employees show that in general exployees who missed more days of work during the year received smaller raises than those who missed fewer days. A detailed analysis showed that

  2. statistics

    A college professor decides to run for Congress in a district with 450,000 registered voters. In a survey she commissioned, 58% of the 4000 registered voters interviewed indicated that they plan to vote for her. The population of interest is the: A.

  3. math-Inverse functions

    f(x)=-4x-2 & g(x)=5x-6. Find (f*g) and state domain. f(x)-x^2-1 what is the equation for f^-1(x)? f(x)=3x+2, find f(f^-1(14)). f(x)=4x+7 and g(x)=3x-5 find (f*g)(-4) f(x)=sqrt x+3 what is equation for f^-1(x)? Graph y=sqrt x-2 +5 which point lies on graph?

  4. Physics

    please check these: 1. which of the following statements applies to the motion of a ball rising and then falling in free fall? I.The ball has constant acceleration as it moves upward. II.The ball has constant acceleration at the top of its path. III.The

  5. Physics

    A novice pilot sets a plane's controls, thinking the plane will fly at 2.50 * 10*2 km/h to the north. If the wind blows at 75 km/h toward the southeast, what is the plane's resultant velocity? Use graphical techniques please show me how to solve this. the

  6. chem

    Calculate the molar mass of K2[Cu(C2O4)2]*2H2O I got 353.81 is this correct ?

  7. Geometry

    In Triangle RST, SR < ST and RT > ST. If angle R = 2x + 10 and angle T = 3x - 25, which is a possible value of x? f. 25 g. 30 h. 35 j. 40 So far I've just drawn a picture for reference and I've been pondering about the problem for about 15 to 20 minutes

  8. Science

    In a wet type of voltaic cell, what is the electrolyte? a. a bridge made of salt b. a copper strip c. an acidic liquid d. a spontaneous flow of electrons A believe the answer is C

  9. Literature

    please check my answers: 1. In "go Down, Death", Death is personified as a a. preacher in heaven b. cruel and devious angel c. rescuer on horseback d. huge comet in the sky i chose C 2. In the last stanza of "Tableau", the boys a. angrily comfront the

  10. calculus

    Consider the solid obtained by rotating the region bounded by the given curves about the line x = 6. y = sqrt(x), y = x Find the volume V of this solid.

  11. Maths

    In the formula , F= ma, F = Force (N) , m = mass (Kg) and a = acceleration (m/s²) a) Find F , if m = 26.5kg and a = 2.4m/s² b) Find a , if F = 86N and m = 10.2Kg

  12. Literature;Crucible.

    please check my answers to these 5 questions: 1. In "The Crucible", when Abigail threatens Betty, Abigail is motivated by her a. jealousy of Betty's pampered life as the daughter of a minister b. need for attention in the village because she is an orphan

  13. Poem:Birthday by M.T Buckley

    I type the poem for you Birthday Geronimo. I jumped into the world No parachute. Bootless, falling into enemy territory into the night (had my eyes closed). Didn't take them long to find me These suicide missions are all the same Name? Not yet. Unit? 82nd

  14. PARTS OF SPEECH

    Thousands of years ago, fish were caught in nets and traps. Is the word (in) a preposition?

  15. Literature

    please check these 7 answers on Huck Finn: 1. Huck goes along with the king and the duke until a. they decide to steal from the Wilks sister b. they sell Jim to the Phelps farm c. they try to steal the raft d. he realizes they aren't actually royal i chose

  16. Chemistry

    1) When calcium is reacted with cold water, the equation is as follows: - Ca(s) + H2O(l) -->Ca(OH)2(aq) + H2(g) Isn't Ca(OH)2 insoluble? Why is the state symbol aqueous? When I conducted the experiment in a test tube with cold water, I got a white

  17. Physics

    please check these: which of the following is an example of a vector quantity? a. velocity b. temperature c. volume d. mass i picked A identify as vecor or scalar 1. speed of a snail---vector 2. the time it takes to run a mile-scal 3. the free-fall

  18. 9th grade

    how many parts is earth's lithosphere divided into?

  19. Poetry, English

    hmm what might be an example of onomatopeia in this poem? Conquerors By sundown we came to a hidden village Where all the air was still And no sound met our tired ears, save For the sorry drip of rain from blackened trees And the melancholy song of

  20. Literature

    which quote form "The River Merchant's Wife" is the BEST example of an objective correlative? what is an objective correlative, and what is an example of it: a. "And I will come out to meet you" b. "The monkeys make sorrowful noise overhead" c. "At sixteen

  21. Literature

    kindly check my answers to these 7 questions on Huck Finn: 1. Writing that values intuition, emotion, and imagination over reason is called a. realistic b. romantic c. naturalistic d. ironic i chose B 2. Writers who concentrate on everyday life and close

  22. Literature

    the jar in "Anecdote of the Jar" can be seen as a metaphor for a. the slovenly wilderness of Tennessee b. the crushing boredom of nature c. humanity's interaction with nature d. humanity's love of wilderness areas i don't get this question cuz i don't even

  23. Literature

    Ibsen, Strindbert, and Chekhov were innovative a. european playrights who realistically presented characters and situations b. american playrights who presented the psychological complexities of their characters c. NY producers of Absurdist dramas who

  24. Literature

    A play is not finished in the same way that a poem or a novel is because a. it must have a definite beginning, middle, and end b. it has to be beautifully written c. after it is written, it still needs to be brought to life on stage d. after it is written,

  25. english

    in Obama's speech...Yet, every so often the oath is taken amidst gathering clouds and raging storms...Is this an example of imagery...i feel this is appealing to sight...in analysing...the oath is taken place among a crisis in america...economical crisis

  26. grade 12 english

    please explain...metaphors compare two things...example "gathering clouds" and "raging storms" ...am I comparing these to obama's oath...i need to know if i state this as imagery or a metaphor...please explain

  27. stats...please help, I don't really understand

    A college professor decides to run for Congress in a district with 450,000 registered voters. In a survey she commissioned, 58% of the 4000 registered voters interviewed indicated that they plan to vote for her. The population of interest is the: A.

  28. Chem Help

    In body of fresh water, a dissolved oxygen concentration of 0.225 mM or higher is usually needed to maintain a healthy aquatic ecosystem. For a lake to maintain this concentration, what is the maximum water temperature?

  29. biology

    If plant species has a diploid number of 12 and plant species B has a diploid number of 16. What would a new species, C, that arises as an allopolyploid from A and B, diploid number be? I was thinking 14, because it would get 6 sets from plant A and 8 from

  30. Science

    Why is it that when you put a Mento's candy in a coke bottle, the bottle explodes? Thanks -MC

  31. biology

    All of the following important concepts of population genetics are due to random events or chance except mutation natural selection the bottleneck effect the founder effect sexual recombination I am pretty sure that the answer would be "natural selection",

  32. Literature;Antigone

    why does the poem "Chicago" use apostrophe what is apostrophe? the use of it in this poem shows what? a. shows possession b. reveals the speaker's anxiety c. makes the poem confusing d. gives the poem immediacy i think its B or D

  33. Maths [Algebra]

    There's a rectangle. The width is 6p + 4 and the length is 2p + 1. Simplify your expression.

  34. math

    the angles in a triangle are x + 20, x -30 and 3x. write an expression connecting these and then solve it for x.

  35. chemistry

    if my molality is 1.08 m and my mass of unknown is 25 g. then how would i find my molecular weight of known. you don't have to solve it for me. what equation do i have to use

  36. english

    i have to analyse and evaluate two figurative devices from obama's inaugural speech...is this an example of a metaphor...we remain a young nation, but in the words of scripture, the time has come to set aside childish things.

  37. Econ

    Change of reserves: An increase in foreign assets held by the central bank is recorded with a positive or a negative sign for the change of reserves?

  38. functional design

    I am doing a power point of functional design for health care and am having trouble as this design is best used in small organizations but we are not doing a organization(like nursing homes or small offices) so what can i put for bullets in my slide for

  39. chemistry

    Ok, in my lab, I measured the freezing point of NaNO3 and it was 0.79 C and I have to answer the question: Why might your measured value of the freezing point of water not equal 0oC?

  40. Science

    Why does the Moon exert a greater tidal influence than the Sun?

  41. Literature

    Expressionist drama aims to a. shock the audience by portraying characters with unrealistic conflicts b. make the audience focus on themselves rather than on the stage c. keep drama within the confines of a "beginning, middle, end" pattern d. reveal the

  42. english

    understanding posssessives.the families yards. my teachers desk. the mans hat. my brothers toothbrushes. the girls bicycle. pleaes tell me if these are correct

  43. english

    is imagery a figurative device...example.. an oath is taken admist gathering clouds and raging storms

  44. Poem: Birthday by M.T. Buckley

    For this poem can I get your opinion on something. What would you tell the baby that is born to make him feel better of what lies ahead.

  45. design technologyy

    why muffin packaging is important

  46. Maths 2unit

    FUNCTIONS AND THEIR GRAPHS; find f(2), F(0) AND F(-2) for each function. (a) f(x)=3x-1 (b) f(x)=4-x^2 (c) f(x)=x^3+8 (d) f(x)=2^x please explain how to do these questions as well. :)

  47. Integtrated math three

    describe how the value of z changes as the values of x and y changes when z=xy

  48. english; poetry

    i need a poem to compare with emily dickinson's "Hope is the Thing With Feathers' - any ideas? :D

  49. chemistry

    When an aqueous solution is cooled to low temperatures, part of the water freezes as pure ice. What happens to the freezing point of the remaining solution when this occurs? Explain.

  50. trig

    rules of logarithms: can someone please explain how to do these problems? I understand the rules I just don't understand how they apply 1. e^(3lnx) 2. e^(1+2lnx) thanks!

  51. Macroeconomics

    Is the slope of the savings equivalent to the size of the multiplier

  52. Biology!!! HELP

    Does anyone understand what "reciprocal genetic exchange" is? Is it just crossing over during prophase in meiosis?

  53. Science

    what is the "commom center of gravity"?

  54. math

    In a mountain village it rains on average 5 days a week. Find the probability that over a weekend it rains on exactly one of the two days.

  55. Science

    Why can't the ozone layer be higher in the atmosphere?

  56. Math 012

    if anyone can help explain what im doing wrong, id appreciate it. thanks. 4x+3=-3+2x+14 4x=3=11=2x -4x -4x 3=11+6x -11 -11 x=6

  57. physics

    a 200 kg block was moved along an inclined plane to a height of 10m. during this process 3000J of energy was lost due to friction. a. calculate the efficiency of the inclined plane. b. what would the efficiency of the simple machine be if the incline were

  58. math 012

    not so sure about this one either. (anything typed such as 7/6 are fractions, not sure how to type it. x+7/6=2x-7/6 6(x+7/6)=6(2x-7/6) 6x+7=12x-7 -6x -6x 7=6x-7 +7 +7 6x/6= -14/6

  59. Science

    If pale green FeCl2 solution is left in the open for some time, will some of it gradually oxidise to become brown FeCl3 solution?

  60. Algebra

    I am supposed to find the equation for the boundary lines, using the points 0,4 and 3,5. I got 5-4/3-0, which plugged into y=mx+b would equal y=1/3x+b. The book says b equals four, but where does this number come from? Thanks!

  61. math

    there is a graph, and the title is Students who dress up for spirit week.60 grade 7 boys did,70 grade 7 girls did,70 grade 8 boys did, and 80 gr 8 girls did. the question is what this graph is showing. I put the graph is showing how many gr 7 boys dressed

  62. Physics

    what is the speed of an object at rest?

  63. 11th grade

    during what holiday did german and english soldiers observe an informal truce they shared their food buried theri dead and sang together

  64. Math 012

    Can anyone help explain how to do this problem. i am not sure what im doing wrong. thanks 4(2n+1)=3(6n+3)+1 8n+4=18n+9+1 8n-8n+4=18n-8n+10 4-10=10n+10-10 not sure what to do.

  65. Math 012

    im having trouble with this one too. 6y-8=-6+3y+13 heres what ive done so far...not good. 6y-8=-6+3y+13 6y-8=7+3y -6y -6y 8=7-3y

  66. physics....again

    A typical light bulb is 2% efficient. It means that only 2% of electric energy is converted into visible electromagnetic radiation and 98% is converted into ultraviolet radiation known as heat. Suppose a 100W bulb is turned on for 10h. a. how much energy

  67. Physics

    please show me how to work out this problem: A roller coaster moves 85 m horizontally, then travels 45 m at an angle of 30.0 degrees above the horizontal. what is its displacement from its starting point? use graphical techniques. the answer is 126 m at

  68. Science

    What will happen if I mix Muriatic acid (just a drop) in room temperature water? (about 80 ml of it) Thanks -MC

  69. math

    36 divided by 8

  70. Biology

    Darwin was able to formulate his theory of evolution based on several facts. Which of the following facts was unavailable to Darwin in the mid-nineteenth century? Natural resources are limited. Individual organisms in a population are not alike.

  71. English

    hmm how to write this in ur own words... I do agree that this poem is like "the whoosh of the imagination at work". Firstly, there is the style of writing in the poem. There is no punctuation at all in this poem. This shows how quickly the boy's

  72. General

    could someone tell me please what is meant by "sense of urgency"

  73. Algebra

    Right now we are learning about absolute value inequalities. I have to solve and graph this inequality: Pretend my paranpheses are absolute value signs (x-4) + 5 is greater than or equal to 10. I assume I would take 5 away from each side first. But what

  74. spanish

    Hello. Can you please see if this is written in Spanish correctly based on the English? I am a good candidate because I am always flexible, dedicated, and responsible. I have been swimming for over five years. I am trained to be a lifeguard. I like to be

  75. Enzyme Kinetics-Km values

    Hi guys, I don't quite understand why a lower Km value means more effective binding? Sincerely, Sandy

  76. Math

    Write 0.06 as a percent

  77. Grammar

    "...the absorbance at 260 nm was measured." (would it be were or was here? how would you know?)

  78. Physics

    how do you solve this a single water particle in a fountain travels through an 85 m system and then returns to the same point. what is the displacement of this water particle during one cycle? how do you get the answer ZERO?

  79. elementary

    WHAT TYPE OF ANIMAL IS THE TYROISORUS

  80. sra jmcguin

    after my b-day party will edit span and send back

  81. Java

    1 public class testOperators 2 { 3 public static void main(String[] args) 4 { 5 int x; 6 int y = 12 7 double z = 13.0; 8 x = 14 9 System.out.println(“x + y + z = “ + (x + y +z)); 10 x += y; 11 y--; 12 z++; 13 z *= x; 14 System.out.println(“x + y + z

  82. Java

    I need help putting the following trace into pseudocode 1 public class testOperators 2 { 3 public static void main(String[] args) 4 { 5 int x; 6 int y = 12 7 double z = 13.0; 8 x = 14 9 System.out.println(“x + y + z = “ + (x + y +z)); 10 x += y; 11

  83. Chemistry

    How would you balance this equation Mg(s)+FeCl3(aq)=Fe(s)+MgCl2(aq)

  84. Physics

    i have a line graph with positions 1-10 in the positive direction. if a toy car rolls from +3m to +5m, which of the following statements is true? a. Xf=+3 m b. Xi=+3 m c. delta x=+3 m d. Vavg=3 m/s

  85. calculus

    Find the average value of the function on the given interval f(x) = 2x^3(1+x^2)^4, [0,2]

  86. calculus

    Compute the area of the region in the fi…rst quadrant bounded on the left by the curve y = sqrt(x), on the right by the curve y = 6 - x, and below by the curve y = 1.

  87. U.S.History

    i'm stuck on this essay question.. Discuss how both the North and South defended their position on the question of secession by tracing the history of their argument?

  88. Chemistry

    How would you write skeleton equations for these reactions? I am very confused Hydrogen iodide(G)= Hyrdrogen(G)+Iodide(G) Aluminum(s)+iodines(s)= Aluminum iodide(S) Silver Nitrate (aq)+Sodium sulfide (aq)= silver sulfide(S)+ sodium nitrate (aq)

  89. Math

    My friend and I are both going to start working. I'm starting Sunday and will have every 9th day off. She's starting Monday (the day after me) and will have every 6th day off. When is the first day we'll both have off to go to the mall? I'll need the

  90. Physics

    this question came up in my work, and i don't remember reading about it in my book. can you tell me what it is asking for, and how to do it.. if the change in position delta x is related to velocity v(with units of m/s) in the equation delta x=Av, the

  91. Science

    Piezoelectricity is caused by pressing or squeezing___________? a power rods. b. crystals c. zinc plates d. magnets I believe the answer is b.

  92. sra jmcguin

    Santiago, estás sacando notas malas. Primero, insisto en que tú limites el tiempo con tu novia o que estudies con ella. Tu novia te puede ayudar en tus estudios. Segundo, te recomiendo que tú decidas entre tocar la guitarra o jugar para el equipo de

  93. geography/ english

    Would it make sense to say: "He hopes the violence would soon be assuaged"?

  94. calculus

    Use integrals to prove that the volume of a sphere of radius R is equal to (4/3)(pi)R^3

  95. Physics

    i got the first part of this quesion, please show me how to do the second part A truck driver travels 8 km ease, and then he turns around and travels 3 km west. then he turns again and travels 12 km east. a. what distance has the driver travele that would

  96. 3rd grade-music

    In "Jambalaya" by Hank Williams Jr, create the next stanza for the song by making a prediction based on the details. The stanza should follow the pattern of the other stanzas in the song. I am totally confused with this question and have no idea how to

  97. International Business

    Most command economies are in the process of transition to a market economy. What is the meaning of transition, and also discuss the related factors that can make an economic transition more successful

  98. 3rd grade-math

    When counting blocks and they ask for standard form, what do they mean? What is standard form?

  99. algebra 1

    [2(6-1)]/2=? PLEASE HELP ME!??!

  100. spanish

    I updated my paragraph. Can you see if this is written correctly? Yo soy una buena candidata porque soy siempre flexible, dedicada, y trabajadora. Hace más de cinco anos que nado. Me he entrenado para ser una salvavidas. Me gusta estar al aire libre y

  101. Chemistry

    Pb(s) + KNO3(aq) ----> No reaction HNO3(aq) + Sr(OH)2(aq) ----> H2O + Sr(NO3)2 NO3 being Nitrate, and (OH)2 meaning 2 Oxygen and 2 Hydrogen atoms in the second problem. The second two in the products of the second problem is a subscript for NO3. Are these

  102. English

    i need help finding the themes of this essay. i know that 1 possible theme is about losing something when you learn something. But my teacher said there was another theme on " the importance to look in-dept" i'm not sure what he meant by that. Mark Twain's

  103. Physics

    how do you do this the motion of a ball on an inclined plane is described by th eequation delta x =1/2 a(delta t)^2. which of the following quantities must have a value of zero? a. Xi b. Xf c. Vi d. Tf :)

  104. Chemistry

    1) When we say calcium reacts readily with cold water, it means the reaction is moderately fast? 2) When we react Fe with dilute HCl, we get FeCl2 & H2. Why won't we get FeCl3? 3) Similarly, when we react Fe with CuSO4, displacement reaction occur to give

  105. Microsoft Access Help please

    need to make a switchboard that inclures a main menu, reports menu, and a forms menu. The main menu should include four buttons: Open forms meno Open reports menu Help exit The reports menu should include buttons to open the two reports and the forms menu

  106. chemistry

    If a satellite orbits the earth at a velocity of 3.2 x 10⁶ km/hr, this would be the same as how many ft/s?

  107. chem

    If .275 moles of ferrous ammonium sulfate and an excess of all other reagents are used in a synthesis of K3[Fe(C2O4)3]*3H2O, how many grams of product will be obtained if the reaction gives a 53% yield? Can you plz explain to me in steps

  108. chem.

    A bird is flying around the world at a rate of 26.4 ft/sec. How many days will it take to complete its journey? (circumference of earth = 25,000 miles)

  109. Psychology

    Does someone know where I can get a brain and nervous system diagram that is labeled well. i can not find one?

  110. biology

    i need to find websites or something on monotremes biological systems, and i can't find anything for my project about them! help!!!

  111. heritage report

    I am going to write information about my personal heritage if I write about three different ideas they will be special accomplishments of different family members ,a special family tradition and a traditional recipe. i want the two pages of information to

  112. English

    What we should take note of is the fact that the designation of English as a second language will not solve everything. (What is the grammar mistakes in the sentence above?)

  113. Chem

    The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is 762 mm Hg. If the flask is immersed in a water bath at 450C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at

  114. Chemistry (repost)

    Pb(s) + KNO3(aq) ----> No reaction HNO3(aq) + Sr(OH)2(aq) ----> H2O + Sr(NO3)2 NO3 being Nitrate, and (OH)2 meaning 2 Oxygen and 2 Hydrogen atoms in the second problem. The second two in the products of the second problem is a subscript for NO3. Are these

  115. English

    Prepare for going out. Prepare going out. Prepare to go out. (Which one is correct? Are all correct?) Give me three garlics. Give me three pieces of garlics. (Which one is correct?) Did you Unplug the electric cord from the socket after cooking? Don't do

  116. History

    Hi. I need to find a lot of information on World War II. My teacher wants me to use only websites that have .edu at the end. Could you help me find a website?

  117. E.V.S

    A paragraph on decipline

  118. social studies

    what is decipline

  119. Macroeconomics

    If the consumption function is a straight line then the MPC is greater then one I think that's right can anyone verify this for me thanks

  120. Grammar

    Another quick question about grammar... "...two large single stranded DNA, which have a low viscosity" (would it be have or has????)