Questions Asked on
November 15, 2011

  1. Math

    Random variables X and Y are both normally distributed with mean 100 and standard deviation 4. It is known that random variable X+Y is also a normal distribution. a. What is the mean of X+Y? b. What is the standard deviation of X+Y? I see that the mean is

    asked by Rob
  2. ratio

    24 people in 6 cars, find the unit rate?

    asked by alex
  3. palmetto high school

    a landscape architect wants to make a triangle garden insde a square of land as shown at the right. What is a rule for the area A of the garden as a function of a?

    asked by Amy
  4. ASTRONOMY-HELP!!!

    IM DESPERATE!!!!!!!!!!!!! HELLLPPPPPP!!!! Can someone explain to me this asteroid article??? ?i am so confused! (google: asterioid 21 lutetia:low mass, high density-first link)

    asked by Rebecca
  5. modern world studies

    what kind of reforms were enacted in Germany and Britian?

    asked by alethea
  6. chemistry

    25.0 g of sodium carbonate is combined with an excess of hdrochloric acid. in the end 5.70 g of sodium chloride is isolated. what is the percent yield of sodium chloride

    asked by Anonymous
  7. chemistry

    An experiment in your laboratory requires 500 mL of a .0200 M solution of Na2CO3. You are given solid Na2CO3, distilled water and a 500 mL volumetric flask Describe how to prepare the required solution showing all calculations and describing each step

    asked by Jennifer
  8. Math (Calculus)

    this is a question I don't understand: Demonstrate the following derivative rule: (Arccsc(u))' = (-1/u(u^2-1)^1/2) * u' Where u = g(x) Do they want me to start with (Arccsc(u)) and get to (-1/u(u^2-1)^1/2) * u' ? Thank you

    asked by Jim
  9. Math

    Find the vertex of the graph of f(x)=2x^2+8x+6

    asked by Lynn
  10. chemistry

    The density of liquid water is 0.997 g/mL at 25 degrees Celsius. a) Calculate the mass of 250.o mL (about a cupful) of water. b) How many moles of water are in 250.0 mL of water? Use the result from letter a. c) Calculate the volume that would be occupied

    asked by khloe
  11. government

    what are the strict and liberal attitudes toward state power?

    asked by haya
  12. Solubility of gases

    Can somebody tell me a list of (common) gases that are soluble, moderately soluble, and insoluble in water? I would like to know which gases can be collected using the downward displacement of water method. CO2 O2 SO2 H2 CO Noble gases F2 Thank you!

    asked by Hae
  13. physics

    A man of mass 67.1 kg stands on a scaffold supported by a vertical rope at each end. The scaffold has a mass of 24.6 kg and is 3.6 m long. Suppose the man stands to the right from the middle of the scaffold that is a distance one sixth of the length of the

    asked by ruth
  14. maths

    SOLVE THE EQUATION FOR Z Z divied by Z+2+i=3+i

    asked by vmu
  15. math

    a train left podunk and traveled north at 75 km/h. two hours later, another train left podunk and traveled in the same direction at 100 km/h. how many hours had the first train traveled when they were 1420 km apart?

    asked by angie
  16. math

    joe left a campsite on a trip down the river in a canoe, traveling a 6 km/h. four hours later, joe's father set out after him in a motorboat. The motrboat traveled at 30 km/h. how long after joe's father started did he overtake the canoe? how far had joe

    asked by angie
  17. JavaScript

    I'm working on a javascript exercise. I have written function called count where the count function take in one parameter and the parameter is a array of number. The problem I having is how do i return the numbers of negative elements, zeros, and values

    asked by Adam Johnson
  18. trigonometry

    A pilot is flying with an air speed of 185mph. Find the ground speed of plane and the direction of flight.

    asked by Anonymous
  19. Physics(light)

    why the ray reflected by the prism is brighter than that by the plane mirror?

    asked by demolitrate
  20. physics

    A load of mass 80kg fell dwn from d floor of a lorry whch is 1.2m high.calculate wrk dne by gravity on d land

    asked by Emeka
  21. math

    i am greater than 40 but less than 50. i am 5 times a number. who am i?

    asked by gian
  22. Physic Help please

    an object of mass 1.5 kg on a spring of force constant 600N/m loses 3% of its energy in each cycle.THE SYSTEM IS DRIVEn by a sinosuidal force with maximim value of F0=0.5N.(a) What is Q for this system?.(b) What is the resonance (angluar)frequency? (c) If

    asked by jjena
  23. To Jordan, Brittany, and Kate ~

    Your umpteen posts have been removed. Here’s the way this website works: You post a question you have about your assignment, and then tell us what you think about it all so far. Then we can tell what help you need and work with you on your answers.

    asked by Writeacher
  24. physics

    A rough wooden block of mass 4kg place on a rough horizontal plank is applied by a force of 35n until it just starts to move calculate the coefficient of static friction (take 9=10m/52)

    asked by Anaebo
  25. Physics

    why the ray reflected by the prism is brighter than that by the plane mirror?

    asked by demolitrate
  26. statistics

    In a state,52%of the voters supports party-R, and 48% supports party-D. In second state 47% of the voters supports party-D. Suppose 100 voters are surveyed from each state. Assume the survey uses simple random sampling. what is the probability that the

    asked by johnprabhakaran
  27. statistics

    Ram earned a score of 940 on a national achievement test. The mean test score was 850 with a standard deviation of 100.what proportion of student had a higher score than Ram?(Assume that test scores are normally distributed)

    asked by johnprabhakaran
  28. statistics

    which of the following statements is true? Justify your answer with an example. i)When the margin of error is small, the confidence level is high. ii)When the margin of error is small, the confidence level is low. iii)A confidence interval is a type of

    asked by johnprabhakaran
  29. geometry

    An aeroplane when 6000 m high passes vertically above another plane at an instant when their angles of elevation at the same observing point are 60° and 45° respectively. How many meters higher is the one than the other?

    asked by amar
  30. physics

    A rough wooden block of mass 4kg placed on a rough horizontal plank is applied by a force of 35n until it just starts to move calculate the coefficient of static friction (take 9=10m/s

    asked by Anaebo
  31. geometry

    if area of triangle wxz is 48 cm squared, x =10 cm, xz = 10 cm, middle =8 cm then what is the perimeter of wxz

    asked by tim
  32. UST PHYSICE

    a body of mass 6kg is whirled in a horizontal circle of radios 1.5m with a uniform velocity 3m/s. calculate 1. the angular velocity 2. the centripetal acceleration.

    asked by Anaebo
  33. Math

    Input x 2 output y=17, input x 4 output y=28, input x 6 output y=42, what is the rule for the table?

    asked by Jay
  34. world history

    With the adoption of Christianity by Constantine, the emperor A. stopped using images of pagan gods. B. ended pagan rituals and ceremonies. C. was no longer worshipped as a god. D. was called God's deputy on Earth. im not sure its it B or D

    asked by firedup
  35. trig

    What is the exact value of 19 pie divided by 12.

    asked by Jimmy
  36. world history

    Peter the Great's decision to move the capital of Russia to St. Petersburg reflects the shift of power in Europe to the A. north. B. east. C. west. D. south.

    asked by firedup
  37. algebra

    Cramer's rule I understand the method but idk how to do this question 6x+2y=-44 -7+9Y=-96

    asked by Bob Brown
  38. algebra

    Explain in your own words what it means for an equation to model a real world situation an give an example. -it is right to say that when given a problem, we want to identify the quality of the problem we want to find, translate form word to algebra, and

    asked by lan
  39. physics

    A large, solid metal sphere is suspended from a the ceiling by a cable, and is free to rotate about the wire. If the mass of the sphere is 176 kg, its radius is 0.7 m, and it is initially rotating at 28 rpm (revolutions per minute), what work is required

    asked by john
  40. physics

    At 15 minutes past the hour, a 50 g mouse runs up a grandfather clock and sits himself down at the end of the minute-hand. If the minute-hand for the clock is 16 cm long, what is the magnitude of the torque exerted by the mouse on the minute-hand? Give

    asked by lisa
  41. history

    How did african slavery contributed to the economic growth of the british economy

    asked by Natasha
  42. math

    Mary's age is 2/3 that of peter's. two years ago mary's age was 1/2 of what peter's age will be in 5 years tim. how old is peter now?

    asked by rafael
  43. chemistry

    A rolaids tablet contains calcium carbonate which neutralizes stomach acid. If rolaids tablet neutralizes 42.15 mL of 0.320M hydrochloric acid, how many milligrams of calcium carbonate are in a Rolaids tablet CaCO3 + 2 HCl ------> CaCl2 + H2O + CO2 Pls

    asked by monique
  44. physics

    At 15 minutes past the hour, a 50 g mouse runs up a grandfather clock and sits himself down at the end of the minute-hand. If the minute-hand for the clock is 16 cm long, what is the magnitude of the torque exerted by the mouse on the minute-hand? Give

    asked by henry
  45. geometry

    a rectangle measures 30 feet by 20 feet and has a post at each corner and a post every 2ft. How many posts in all?

    asked by Jay
  46. Math, Please Help!!!

    an engineer designs a satellite dish with a parabolic cross section. The dish is 15 ft wide at the opening and the focus is placed 4 ft from the vertex. find an equation of the parabola. I know how to work this problem, but how do I know that I use the

    asked by BOB
  47. math

    1/2 of students walk to school. 1/3 of students take the bus. What is the remainder? Put in order from from greatest to least.

    asked by Jay
  48. math

    1/2 of students walk to school. 1/3 of students take the bus. What is the remainder? Put in order from from greatest to least.

    asked by Jay2
  49. English

    Could you please chech the writing of the dates in letters? I included a few questions on Macbeth. 1) 2003: two thousand and three/twenty oh three 2) 1805: eighteen oh five/eighteen hundred and five. 3) What are the most dominant themes in Shakespeare’s

    asked by Henry2
  50. writing

    Could anyone please help me with this question? Is the phrase below a smilie, metaphor, or personification. The sky lit up with a huge web of lightning. I know what a smile, a metaphor, and what a personification is, but I can't seem to be able to answer

    asked by Howler
  51. math

    A rectangle measures 30 feet by 20 feet and has a post at each corner. If posts are placed 2 feet apart. How many posts will there be in all?

    asked by coach
  52. Science project fair

    Hello: My daughter is in 4th gde and is about to turn in her displayboard but we are not coming up with a good title. She wants to title it "Flowers with sweet tooth". In her science projct she has discovered that sugar helps cut flowers live longer than

    asked by priscila
  53. MATH

    Please help me with these: 1. 5/8 + 5/6 = 2. 2 3/5 + 4 4/5 = 3. 13 1/2 + 7 2/3 = 4. 3/8 - 3/8 = Thanks!

    asked by JOSH
  54. english

    Conor's sense if his own INFALLIBILITY has contributed to his succes at chess. A. inability to make an error B. worth c. open-mindedness D. srtategic skills

    asked by lola
  55. ECON - urgent please help

    demand for sulfur dioxide by coal-fired electricity electricity producers is: Firm A's demand: P= 1,000 - 80 Q Firm b's demand: P= 1,000 - 20 Q where Q is quantity of sulfur dioxide measured in thousands of tons, and P is price per ton of sulfur dioxide.

    asked by Sushmitha
  56. Econ - please help

    demand for sulfur dioxide by coal-fired electricity electricity producers is: P= 1,000 - 16Q where Q is quantity of sulfur dioxide measured in thousands of tons, and P is price per ton of sulfur dioxide. Supposed EPA restricted the number of one-ton sulfur

    asked by Sushmitha
  57. chemistry

    the number of grams of KCI per 100g of water that would produce a saturated soluion at 50 degrees C is?

    asked by Janet
  58. natural science

    hi can sm1 help me hw many kilojoule (kg) are there in 1kwh?

    asked by zinhle
  59. geometry

    if ac=17 and bd=15 nd ab=11.2 what is the area of the rhombus

    asked by ***
  60. physics

    A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential

    asked by sand
  61. managerial economics

    draw a game tree when sony makes its technology decision first.does sony experience a first-mover advantage

    asked by mark
  62. science fair project

    Thank you Howler but do I put the title with a question mark, like "Flowers with a sweet tooth? or just "Flowers with a sweet tooth...." thany you again

    asked by priscila
  63. Chemistry- HW Check

    I have seven homework problems. I did them but I wasn't sure if I did them correctly. Did I do them correct? Thank you! Give the reaction that describes how the hydrazine, N2H4(aq), / hydrazinium ion, N2H51+(aq), buffer reacts with a strong base such as

    asked by Maegan G
  64. maths

    a carpenter needs to cut a plank of wood that is 3.75m long into 5 equal pices what is the length of each piece of wood?

    asked by jebril
  65. physics

    A coin with a diameter of 2.10 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 13.3 rad/s and rolls in a straight line without slipping. If the rotation slows with an angular acceleration of magnitude

    asked by Anonymous
  66. physics

    two strings are connecred to a 10 Kg mass with T2 making an angle 30 degree with the horizontal find the tension in the other string

    asked by jak
  67. SLOPE MATH

    The grade of a road is its slope given as a percent. for example, a road with a 6% grade has a slope 6/100. it rises 6 feet for every 100 feet of horizontal run. describe a 100% grade. Do you think you could drive up it?could you walk up it? Is it possible

    asked by manal HELP ME
  68. English

    Shall I consider the following sentences as gramatically wrong? 1) How many times do you do your homework after dinner? (instead of "how often") 2) I always do my homework with attention (instead of "carefully") 3) I think that two thousand three (2003),

    asked by Henry2
  69. Math (Calculus)

    without any simplification, find the derivative of h(x) Arcsin^4 (3x-1) / (3)^1/2 (square root) I end up with h'(x) = 12Arcsin^3 (3x-1)sqr(3) / 3 (squr(1-(3-x)^2))

    asked by Jim
  70. French

    Can someone to correct mistakes? Thank you! Le 4 septembre a été volé un vélo. Une fille avait laissé son vélo près d'un bar. Quand elle est sortie du bar elle a vu que son vélo avait été volé et a appelé la police. Aussi elle lisait des

    asked by Ana
  71. chemistry

    what volume will53ml of gas measured at 25degree and 97 k pa become if the temperature is changed to 55 degree and pressure to 93 k pa ?

    asked by imshat
  72. mecs 101

    How has Islamic law attempted to adapt to modernity?

    asked by lou
  73. MS Office Suite

    I am familiar with Excel 2007. I just got the news that I will be expected to use Excel 2010 instead. What are some of the differences between Excel 2007 and 2010? Were there many changes between those two editions? If someone has used both versions, do

    asked by Rufus
  74. 3rd grade math

    A rectangle measures 30 feet by 20 feet and has a post at each corner. If posts are placed 2 feet apart. How many posts will there be in all?

    asked by steph
  75. Discrete Math

    You have two decks of 26 cards. Each card in each of the two decks has a different letter of the alphabet on it. You pick at random one card from each of the two decks. A vowel is worth 3 points and a consonant is worth 0 points. Let X = the sum of the

    asked by Martin
  76. Social Studies

    The question is "Evaluate the effectiveness of this action" The action was the government appologizing for Chinese Head Tax. Not only did the gov't appologize , it also gave symbloic payments to those affected by the head tax. Then it says "does it

    asked by Brooke
  77. physics

    A sled is initially given a shove up a frictionless 32.0 incline. It reaches a maximum vertical height 1.50 higher than where it started.

    asked by Anonymous
  78. science

    A man fires a gun 150m from a cliff. A second man who is standing 300m further away from the cliff hears the gun 1 second after he sees the flash. When will the second man will hear the echo from the cliff?

    asked by surbhi
  79. math

    how do you write a situation that can be represented by the algebric expression $3.50t?

    asked by jadah
  80. math

    How many cubic yards of concrete will it take to fill a cylindrical column that is 24 feet high and whose diameter is 2 feet

    asked by Mike
  81. PreCalculus

    I'm trying to find the x-intercepts of a polynomial function = 4x^4-3x^3-6x^2+2x+6. I don't want anyone to solve it, could someone please just tell me how to start factoring this so I can find the x-intercepts, I'm lost.

    asked by Manny
  82. Algebra

    How many three symbol codes using the digits 3 through 9 are possible if repetitions are allowed? (243 is an example of a three symbol code).

    asked by Lori
  83. Introduction to Psychology

    The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were colorful

    asked by Anonymous
  84. geometry

    The height of a triangle is 12 centimeters greater than the width of its base. If h represents the height of the triangle, then the area of the triangle as a function of h is

    asked by lola
  85. physics

    A boat’s speed in still water is vBW = 1.85 m/s. If the boat is to travel directly across a river whose current has speed vWS = 1.20 m/s, at what upstream angle must the boat head?

    asked by ahmed
  86. History

    How did the Indians flight against Andrew Jackson and the government

    asked by Shelly
  87. managerial economics

    Recently one of the nation’s largest consumer electronics retailers began a nationwide television advertising campaign kicking off its “Take It Home Today” program, which is designed to encourage electronics consumers to buy today rather than

    asked by mark
  88. English

    I still have a few doubts about some more sentences. 1) wide-apart eyes : is "distant" eyes possible? 2) pale-skinned: is fair-skinned possible? 3) happily: is "contently" possible? I watch TV (is the TV also possible?) a quite large mouth (or quite a

    asked by Henry2
  89. physics

    what temperature is bose- einstien condensate?

    asked by lissa
  90. statistics

    the times required to assemble a product part are normally distributed with a mean of 54.4 minutes & a standard deviation of 5.2 minutes. What fraction of the assemble workers require more than one hour?

    asked by lia
  91. chemistry

    what is the solubility of CuS in water at 25 C and 1 bar ? for equilibrium : CuS + H2O = CuSO4 + H2O

    asked by tota
  92. geometry

    In a right triangle, one side is 9 units in length, and the hypotenuse is 15 units in length. What is the length of the other side?

    asked by ginA
  93. Math

    Find x-intercepts of x^4-9x^3+29x^2-40x+20

    asked by Anonymous
  94. geometry

    Triangle XYZ above is similar to triangle UVW (not shown). If the length of one side of triangle UVW is 60, then what is one possible perimeter of triangle UVW?

    asked by matt
  95. world history

    can you check over my answers? Q.) With respect to human rights issues in Southeast Asia, which statement is most accurate? A.)The leaders of the Khmer Rouge fled from Cambodia after 1979. B.)The Khmer Rouge leaders have never been brought to trial.

    asked by nike
  96. Science

    What geological forces might have created land, sea, and sky by Phil Brodatz?

    asked by DestinyLashea
  97. math

    create the equation: x=2 and x=5

    asked by Allison
  98. algebra

    40y/88 explain what steps you took to simplify and show your work

    asked by keyanna
  99. African American History

    What European nations were the first to engage in trade talks with Africans

    asked by Shay
  100. Business Law

    Background: ABC is a multinational enterprise (MNE) incorporated in State X. ABC entered into a joint venture agreement with XYZ, an MNE incorporated in State Y, to jointly produce a new line of hydraulic equipment in ABC's new factory in State Z, a

    asked by Lakeisha
  101. math

    150 miles in 8 gallons

    asked by Anonymous
  102. chemistry

    The following reaction is used to produce tungsten(VI)oxide: WS3(s) + O2(g) → WO3(s) + SO2(g) The WO3 is then heated and undergoes a decomposition reaction produce tungsten and oxygen gas. How many grams of tungsten could be produced if 16.91 grams of

    asked by kim
  103. world history

    correct? 17. Toyota's remarkable growth as a multinational company is uniquely associated with which of the following? A. Kaizen and jidoka *B. Kaizen and chaebols C. Jidoka D. Chaebols _______________________________________ 18. From 800–1200, the Khmer

    asked by ness
  104. physics

    A wooden block with a volume of 29.59 cm3 is held under water. What is the buoyant force on the block (see sheet 19)? Indicate with a positive (negative) sign whether the force you calculate depends (does not depend) on the density of the wood.

    asked by cassie
  105. Biology

    what are the radiometric dates of: Homo sapiens, stone tools, sabre toothed cat, wolly mammoth, apes, whales, horses, dinosaursflowering plants, birds, earthworms, reptiles, spiders, sharks, amphibians, land plants, jawless fish, jellyfish bacteria and

    asked by JG
  106. history

    i think its rite is it? 13.) . The visit of an influential nuclear physicist to a population symposium in 1979 led to A. the two-child policy in China. B. the election of Deng Xiaoping in China. C. new nuclear-power safety measures in populated areas in

    asked by man
  107. Algebra

    Search: List (a) the coordinates of any y-intercept and (b) the coordinates of any x-intercept. Do not graph. x = -5

    asked by Kameesha
  108. physics

    A 4-kg block is connected by means of a massless rope to a 2-kg block in the figure. If the coeficient of sliding friction between the 4 kg mass and the table is 0.150, find the acceleration of the system, and the tention in the connecting cable.

    asked by Anonymous
  109. Math

    How do I fing volume of a shape?

    asked by Zoe
  110. Please Help!!!!!!

    an engineer designs a satellite dish with a parabolic cross section. The dish is 15 ft wide at the opening and the focus is placed 4 ft from the vertex. find an equation of the parabola. I know how to work this problem, but how do I know that I use the

    asked by Desperate!!!!
  111. English

    Are these constructions possible in English? I know they are possible in German. 1.I'm long-, curly- and dark-haired. 2. She is a curved-eyebrowed person. 3. She is narrow-mouthed. 4. She is a thick eye-lidded girl. 5. I hardly every sulk about people

    asked by Henry2
  112. chemistry

    Acetic acid (CH3COOH) reacts with isopentyl alcohol (C5H12O) to yield the ester isopentyl acetate which has the odour of bananas. If the yield from the reaction is 45%, how many grams of isopentyl acetate are formed when 3.90 g of acetic acid and 6.28

    asked by kim
  113. calculus

    Show that the equation x+3sinx=2 has a root between 0.4 and 0.6.express the root to four significant figures

    asked by farouk
  114. language arts

    Complete the analogies by selecting the pair of words whose relationship most resembles the relationship of the pair in capitol letters. SAGE:WISDOM a. author:anthology b. speaker:tirade c. acrobat:agility (I'm thinking c but I'm not sure) SCOLDING:TIRADE

    asked by Bre
  115. Biochemistry (BCMB)

    Why do plants go on to manufacture energy-rich sugars when they already have ATP and NADPH for chemical energy from light reactions of photosynthesis?

    asked by Kevin
  116. Physics

    A high school cheerleader has a baton that is 1 meter long with a 100 gram mass on each end. Another cheerleader has a baton that is 0.5 meter long with the same mass on each end. Neglecting the mass of the rod holding the masses together, which baton will

    asked by Kevin
  117. 8th Grade Chemistry

    This is from the Glencoe book Chemistry, Book L. Unlike sodium and chlorine, some atoms becomre more stable by sharing_______, forming______________rather than charged__________. The bonds in a molecule of oxygen are _______ _______ bonds, while the bonds

    asked by Eric
  118. Finite

    Assume the box contains 7 balls: 3 red, 2 blue, and 2 yellow. A ball is drawn and its color noted. If the ball is yellow, it is replaced; otherwise, it is not. A second ball is then drawn and its color is noted. What is the probability that the first ball

    asked by Athena
  119. ASTRONOMY-HELP PLEASE!!!!!

    Equipment:      Geiger counter.    Laboratory emitters of alpha, beta and gamma radiation.    Substances which may or may not be emitters    Assorted possible radiation blocking material. 

    asked by Rebecca
  120. physics

    A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential

    asked by sand
  121. people

    Which of the following people do you think is most important to Egyptian history:King Menes,Manetho,Khufu or Amenenhet?

    asked by Glorious
  122. government-pos110

    The political system in which those who have governmental authority get and retain authority directly or indirectly because of winning free elections is called: A.a republic. B.an authoritarian system. C.a direct democracy. D.a representative democracy. D?

    asked by Shelly
  123. algebra

    if the lengths of a triangle are y, y-1 and 7 what is the length of the longest side if the perimeter is 65

    asked by dan
  124. language arts

    Complete the analogies by selecting the pair of words whose relationship most resembles the relationship of the pair in capitol letters. AFFABILITY:SMILE a. pain:grimace b. resilience:recovery c. turbulence:pseudonym d. abrasion:bruise (I think it is "a"

    asked by Bre
  125. maths

    how do i work out 7.25/0.25 without using a calculator???

    asked by Nabiha
  126. Biochemistry (BCMB)

    Waste gases containing CO2 from power stations are sometimes pumped through pools containing an aquatic green unicellular alga, such as Chlorella. Explain two benefits of this.

    asked by Kevin
  127. Social Studies

    What do the British call the American Revolution,due to the "Little Colonies" being a thorn in the mighty British Empire side?

    asked by Austin
  128. statistics permutations and combinations

    Selecting a committee: There are 7 women and 5 men in a department. How many ways can a committee of 4 be selected if there must be at least 2 women?

    asked by Celee
  129. math

    A rectangle measures 30 feet by 20 feet and has a post at each corner. If posts are placed 2 feet apart. How many posts will there be in all? Explain and show work please.

    asked by wurm
  130. Algera

    If x is divisible by 4,5,20. Which of the following statement must also be divisible by 4, 5, 20? x+4 x+5 x+10 x+20

    asked by Lee
  131. government-pos110

    Which of the following is true regarding U.S. Senators? A.Senators are elected to 2 year terms. B.Senators can approve executive agreements. C.Each state has two Senators. D.Senators must be 25 years old. d sounds famaliar

    asked by Shelly
  132. calculus

    two curves are orthogonal at a point of intersection of their tangents at that point cross at right angles. Show that the curves 2x^2+3y^2=5 and y^2=x^3 are orthogonal at (1,1) and (1,-1). Use parametric mode to draw the curves and to show the tangent

    asked by Anonymous
  133. Calculus

    With y=f(x) (2x-10)^1/2 having a virtual line joined at point Q from the origin (0,0), determine the coordinates of point Q that maximises the angle of vision of an observer, situated at the origin, following the movement of point Q along the curve. Note

    asked by Jim
  134. English

    Could you please check these last sentences? Thank you very much. 1) I'm quite long, straight, brown-haired.(Should there be a hyphen to separate adjectives?) 2) After homework I help my mum with the housework. 3) Can you say “at 13:45 o’clock”?

    asked by Henry2
  135. math

    i am less than 200 sum of the digits =6 product of the digits =0 each factor of 75 is its factor too

    asked by broklyn
  136. Math

    Kyle and his brotherJoe have 24,000 family photos. They saved 600 photos on CD each month. How many months did it take to save the photos ?

    asked by help please !!!!!!!!!!!!!!!!!!!!
  137. Math

    Omggg I don't understand this at all! My teacher did not explain fully and he gave this assignment. Express using absolute value notation. 1. x< -3 or x> 3 I know the answer is |x|>3 but why?

    asked by Jelal
  138. accounting

    A city is served by two newspapers—the Tribune and the Daily News. Each Sunday reader purchases one of the newspapers at a stand. The following transition matrix contains the probabilities of a customer’s buying a particular newspaper in a week, given

    asked by Zanobia
  139. chemistry

    Determine the molarity of a 2.15-L aqueous solution containing 1.45 moles of KCl.

    asked by Anonymous
  140. government

    The Federal Administrative System's main goal is to ________________________. implement the laws that are passed by Congress and signed into law by the President be as independent as possible from the executive branch create a huge bureaucracy to ensure

    asked by Shelly
  141. gov.

    Presidents can circumvent checks upon themselves in all of the following ways EXCEPT executive privilege. executive statements. executive agreements. executive orders. I have no idea, I can't find it in my book. the first one?

    asked by Shelly
  142. geometry

    Write a two-column proof of Theorem 6-2-3, which is: If a quadrilateral is a parallelogram, then its consecutive angles are supplementary.

    asked by Lauren
  143. SERVEY

    Im doing a servey for school and I need to know Which is better to you: music or sports??? i already have 7 people and i need 20 people

    asked by Auggie
  144. math/117

    Explain three rules for exponents listed in the chart on p. 239 (Section 4.2). Do not explain the first two definitions listed in the table (Exponent of 1 or 0). Create an expression for your classmates to solve that uses scientific notation and at least

    asked by Anonymous
  145. 6th grade english

    What is the verb, direct object, and/or the indirect object in the follow sentence. The boy saw a huge beanstalk outside his window the next morning. Is it: Verb: saw or huge? Direct object: beanstalk? Indirect object: the boy? Or what is it?

    asked by Mad(:
  146. Science

    A 0.5-kg baseball is pitched at 45 m/s and is struck by a bat and sent back toward the pitcher at -45 m/s. If the ball is in contact with the bat for 0.0025 seconds, how hard does the bat hit the ball? What forces act on the ball after the bat hits it?

    asked by Horace
  147. Math

    A Japanese beetle has a length between 0.3 and 0.5. Find two lengths that are within the given span. Write them as fractions in simplest form.

    asked by Susana
  148. English (answer quick)

    Tonight for english I have to print out 2-3 articles about the historical I choose to research. My historical person is Emma Amos (artist african american painter), I got one article about her (remember I was going a journal entry for english about me

    asked by Laruen
  149. physics

    The 67 kg man in the roller coaster car is sitting on a bathroom scale. If he is traveling at 33.4 m/s at the point shown and the radius of the vertical coaster track is 73 meters, to the nearest newton what does the scale read?

    asked by herm
  150. Physics

    After an unfortunate accident at a local warehouse you have been contracted to determine the cause. A jib crane collapsed and injured a worker. The horizontal steel beam had a mass of 88.50 kg per meter of length and the tension in the cable was T = 11.78

    asked by Morgan
  151. algebra

    it took stephen 3 1/2 hours to do the yarrdwork he spent 2/3 of that time mowing the grass how long did it take stephen to mow the grass

    asked by lazaria
  152. geometry

    A carpenter must ensure that a large window frame is a rectangle. If the corners are labled E,F,G, and H, the carpenter knows that EF=51 inches, FG=28 inches, GH=51 inches, and EH=28 inches. The carpenter could measure the diagonals EG and FH and verify

    asked by alisa
  153. physics

    A 220 N crate is pushed along the ground with a horizontal force. The coefficient of kinetic friction is 0.21 and the coefficient of static friction is 0.31. The crate moves at a constant speed of 4.1 m/s. a) Draw a free-body diagram for the crate. b) What

    asked by Kelsey
  154. Alg 1

    The largest town square in the world is Tiananmen Square in Beijing, China, covering 98 acres. A. 1 sq mile is 640 acres. Assuming that the Tiananmen Square is a square, how many feet long is a side to the nearest foot? B. To the nearest foot, what is the

    asked by Austin
  155. physics

    A policeman with a very good ear and a good understanding of the Doppler effect stands on the shoulder of a freeway assisting a crew in a 40-mph work zone. He notices a car approaching that is honking its horn. As the car gets closer, the policeman hears

    asked by maria
  156. Biology

    Each phenotype can only be represented by a single genotype. True or False? Help would be appreciated, thanks in advance!

    asked by Jimmy
  157. physics

    You drop a stone down a well that is 12.37 m deep. How long is it before you hear the splash? The speed of sound in air is 343 m/s.

    asked by maria
  158. history

    who did rome destroy and then put salt over the land so nothing would grow again? answer: Carthage

    asked by mike
  159. MATH

    Brenda and her family were driving to her grandmother’s house during a holiday. During the drive, Brenda fell asleep halfway through the trip. When she awoke, her family still had to travel half the distance that she had traveled while she was sleeping.

    asked by MATH Please Help
  160. socials

    explain why for intentional purposes, german forces needed to invade Britian if they were to hold western europe. what efforts they make to do this? i confused on this i think maybe britain real strong so germany want to invade first but what real reason?

    asked by Mohammad
  161. socials

    do u think it was an error on germanys part to invade ussr? i think yes because they promised not to fight with it but they broke promise.

    asked by Mohammad
  162. socials

    german defeat at stalingrad is thought of some historians to be the point in which the defeat of germany became expected. why is this? my friend not come again can please make my sentence proper? it because it place they get most desperate and it where

    asked by Mohammad
  163. geometry

    the degree measure of angle A is represented by 2x-20 and the degree measure of angle B by 2x. Find the value of x, measure of angle A and B.

    asked by diana
  164. socials

    what the purpose of the dieppe raid? why were canadian troops selected for it? why did it fail? what useful information have been learned from raid? purpose to practice and test new techniques and equipment. canadian troops selected for this because they

    asked by Mohammad
  165. history

    whom did Rome face attacks from ? answer Macedonia, Greece and part of Asia

    asked by mike
  166. Cultural Anthropolory

    How does the identication of cultural universals impact our understanding of what it means to be human?

    asked by willie lemon
  167. algebra

    me bought 2lb of sliced ham for 3.75 per lbs.sales tax is 12% how much do i pay

    asked by toyw
  168. Math

    Samantha saved $13 by buying a used DVD. She paid $5 less than half the original price of a new one. How much did Samantha pay for a used DVD?

    asked by Marc
  169. statistics

    A business researcher wants to estimate the average number of years of experience an account manager has working with the company before getting promoted to account manager. Eight account managers are randomly selected and asked how long they worked with

    asked by alessandria
  170. Physics

    An airplane is flying with a constant speed of 275 m/s along a horizontal circle with a radius of 1.23 x 104 m. If the lift force of the air on the wings is perpendicular to the wings, at what angle, relative to the horizontal, should the wings be banked?

    asked by kim
  171. physics

    If a 1-megaton nuclear weapon is exploded at ground level, the peak overpressure (that is, the pressure increase above normal atmo- spheric pressure) will be 0.2 atm at a distance of 6 km. What force due to such an explosion will be exerted on the side of

    asked by Marti
  172. math

    what is the elapsed answer for 4:05pm to 8:45pm

    asked by Tivonna
  173. riddle

    what word can you make with these lettters tttlrmheee

    asked by mom
  174. Science 7R (Homework Check, answer quick)

    Can you check if the answr is correct and of there any any grammar mistakes. 1. Explain why the invention of the microscope was important in the study of cells? Answer - The reason why the invention of the microscope was important in the study of cells is

    asked by Laruen
  175. Science

    I need help determining what the second phase of a Succession Diorama for a forest fire would contain.

    asked by Marsha
  176. sentences

    Can you give me a sentence with the word difficulties?

    asked by Kate
  177. Physics

    A 66.7 kg cart is moving at 11.9 m/s around a horizontal curve whose radius is 30.5 m. What is the magnitude of the fictional force required to keep the cart from sliding?

    asked by dummy
  178. socials

    tv film produced by cbc in 1920's implied the firebombing of german cities by allied forces was a war crime. film aroused great controversy. what ur opinion on this? dont that make the allied forces look negative? that bad i say. ms. sue i right?

    asked by Mohammad
  179. Psychology Please Help!!!!

    The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were colorful

    asked by Anonymous
  180. history

    whom did Rome face attacks from ? answer Macedonia, Greece and part of Asia all of them what do you think ?

    asked by mike
  181. Math

    Is the product of 4 x 8,827 less than 36,000? How do you know?

    asked by Isabella
  182. math

    if the radius is 24 ft. what is the circumference?

    asked by hunter
  183. sentences

    Can you give me a sentence with the word eddies?

    asked by Marie
  184. sentences

    Can you give me a sentence with the word batches?

    asked by Gary
  185. socials World War 2

    i don't understand what winston churchill mean to say when he say everything in war depend on outcome of battle of the atlantic

    asked by Mohammad
  186. geometry

    find x if m

    asked by ashley
  187. Computer Club (please read)

    Ok next week I have computer club and idk when to bring. What should I bring to computer club my teacher said I can take notes. Any Recommended Thank You!!!

    asked by Laruen
  188. geometry

    True or false Tangent circles always have exactly one common tangent.

    asked by alisa
  189. chemistry

    will someone please help me on dimensional analysis

    asked by Rose
  190. Physics

    Estimate the density of the water 6.0 deep in the sea. By what fraction does it differ from the density at the surface?

    asked by Anonymous
  191. SCI

    How can just 4 different nucleotides in DNA be responsible for the almost endless variety found in nature

    asked by Nolagrl
  192. Social Studies

    WAS THE FALL OF THE HAN DYNASTY INEVITABLE?

    asked by SYNC
  193. Math

    In this problem, x cubed = 12y...how do you solve to determine if this is direction variation or not?

    asked by K
  194. history

    whom did Rome face attacks from ? Germanic people , Carthage . is my answer right?

    asked by mike
  195. Math

    Put in standard form(Ax +By=C) y=-x/5

    asked by Anonymous
  196. Anthropology11

    what are some canadian statistics on generalized anxiety disorder?

    asked by rebecca
  197. physcis

    A crane whose motoer has a power input of 5.0kW lifts a 1200-kg load of bricks through a height 30m in 90s. Find the efficency of the crane which is the ratio between its output power and its input power

    asked by Ania
  198. history

    Who began a savage campaign to overthrow Europe? julius caesar

    asked by mike
  199. geometry

    Two similar solids have a scale factor of 3:5. If the height of solid 1 is 3cm, what is the height of solid 2?

    asked by alisa
  200. geometry

    Two similar solids have a scale factor of 3:5. If the height of solid 1 is 3cm, what is the height of solid 2?

    asked by alisa
  201. Math

    What property is for 9 + n = 9 + n ?

    asked by Laruen
  202. chemistry

    A balanced equation that represents an overall cell reaction is shown. Choose the cell notation which corresponds to the electrochemical cell that is described by this equation. a) Sn2+(aq) + 2Cu+(aq) → Sn4+(aq) + 2Cu(s) b) Pt(s) l Sn2+(aq), Sn4+(aq) ll

    asked by Bob, NEED YOUR HELP
  203. chem

    can you explain half - equations and oxidation and reduction and how they are linked

    asked by anonymouscientist
  204. geometry

    If the ratio of the volume of two similar solids is 8:125, then what is the ratio of their surface areas?

    asked by alisa
  205. algebra the slope- intercept form

    Find the slope and y-intercept for the graph of each equation: y=x-7 how would you solve this type of equation? i know that with an equation like: y=2x+4 that it would be m=2/1 and b=4. but how would you solve the first one.

    asked by Alie Mae
  206. 3rd grade math

    Even mom cant get this one A sets up pet parade. Pet owners walk in rows with pets Row 1 = 1 owner 1 pet Row 2 = 2 owners i pet each Row 3 = 1 owner 2 pets Row 4 = 2 owners 2 pets each Row 5 = 1 owner 3 pets ROW 6 = we have come up with 2 owners 6

    asked by daniel's mom
  207. geometry

    A rectangle with a length of 32 untis and a width of 18 units; find the length of a diagonal.

    asked by Anonymous
  208. math

    how to do arrays and expanded algorithms for multiplication example 17x 23 this is for a fourth grader help

    asked by Anonymous
  209. Physics

    A 60 kg skier moving at 14 m/s strikes a snow bank and comes to a stop in 4 seconds. What is the average impact force on the skier?

    asked by Shari
  210. Physics

    A 80 kg astronaut fires a 20 kg torpedo at 50 m/s from his torpedo gun. What is the astronaut's recoil speed?

    asked by Shari
  211. history

    What war directly led to the Athenian golden age under the rule of Pericles ? Persian war

    asked by mike
  212. math

    An arena seats 7,893 people. The circus is in town and all of the tickets have been sold. If the circus has 4 performances, about how many tickets were sold?

    asked by Isabella
  213. Physics

    Compared to a 400 kg plane flying at 5200 km/hr, how much momentum does a 2000 kg plane have at the same speed?

    asked by Shari
  214. Physics

    Why does a cannonball shot from a cannon with a long barrel travel faster than the same cannonball shot from a cannon with a shorter barrel?

    asked by Shari
  215. Physics

    Compared to a bicycle moving at 20 km/hr, how much momentum does the same bicycle have when moving at 60 km/hr?

    asked by Shari
  216. Physics

    Two objects are dropped from the same height. One object has a mass of 5 kg and the second a mass of 10 kg. What quantity(s) is/are different about the two masses just prior to impact with the ground?

    asked by Shari
  217. math geometry volume

    What are things that have to do with volume and geomrtry? List four things.

    asked by Race
  218. Physics

    a 25 kg slab of putty is moving to the East at 6 m/s. What is the momentum of the putty?

    asked by Shari
  219. Physics

    A 3 kg slab of putty moving at 8 m/s strikes, and sticks to, a 5 kg slab of stationary putty. What is the final speed of the combined mass?

    asked by Shari
  220. Physics

    A car slows to a stop over a certain distance. What could cause the stopping force to be greater?

    asked by Shari
  221. Physics

    A gun fires a bullet. When will the muzzle velocity of the bullet be equal to the recoil speed of the gun?

    asked by Shari
  222. Physics

    What exerts the force obn a rocket in outer space to make it move forward?

    asked by Shari
  223. MATH

    Please help me with these: 1. 5/8 + 5/6 = 2. 2 3/5 + 4 4/5 = 3. 13 1/2 + 7 2/3 = 4. 3/8 - 3/8 = Thanks!

    asked by JOSH
  224. english

    what does occassion mean as a literary element

    asked by jaelon
  225. english

    Organized in 1884, the first African American professional baseball team was the Cuban Giants. What are the phrases in these sentences?

    asked by Anonymous
  226. Math: Homework Questons (answer quick)

    Can you check if the answer is correct and of there any grammar mistakes. Write True or False and EXPLAIN your reasoning for the answer!!!! 8. (5 - 2) - 1 = 5 - (2 - 1) Answer: True Reason: The reason why my answer to this question is true is because when

    asked by Laruen
  227. physics

    A total of 10000kg of water per second flows over a waterfall 30m high.If half of the power this flow represents could be converted into electricity, how many 100-W lightbulbs could be suplied?

    asked by Ania
  228. english

    The view from Mount Fuji is great. From Mount Fuji is the prepositional phrase. Is it an adjective phrase or an adverb phrase?

    asked by Anonymous
  229. physics

    A person's metabolic processes can usually operate at power of 6W/kg of body mass for several hours at time.Of a 60-kg women carrying a 12-kg pack is walking uphill with an energy conversion efficiencyof 20%,at what rate, in meters/hours does her aktitude

    asked by Agata
  230. english

    the second-longest river in africa is the congo is in africa an adjective or an adverb phrase

    asked by Anonymous
  231. english

    After the game, we got something to eat. Are the phrases after the game and to eat? And if yes, are they both adverb phrases?

    asked by Anonymous
  232. physics

    Is the work needed to bring a car's speed from o to 10km/h less than, egaul to or morethen the worked needed to bring its speed from 10 to 20km/h. If the amounts of work are different, what is the ratio between them?

    asked by Agata
  233. english

    Jody was late for the party. The phrase is for the party. it is describing the late so its an adverb phrase right?

    asked by Anonymous
  234. stats

    You took a 5-question multiple choice quiz with 4 choices for each question. If you guess at random on each question, what is the probability that you get at least one question correct?

    asked by sia
  235. Science Word

    Is cell theory is 1. the mayjor theory of life science 2. the cell is the basic unit of life 3. organisms are made up of one or more cells 4. all cells come from other cells I know it's 1 Im justing sure it's more than a answer. You (Ms. Sue) said that I

    asked by Laruen
  236. math 140

    You intend to create a college fund for your baby. If you can get an interest rate of 5.3% compounded monthly and want the fund to have a value of $123,875 after 17 years, how much should you deposit each month? $413.01 $7032.70 $319.14 $375.46

    asked by Doran
  237. 7th grade math

    There are 48 students in a school play. The ratio of boys to girls is 5:7. How many boys are in the school play? Explain how you found your answer.

    asked by Mercedez
  238. physics

    A skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 12 degrees with the horizontal. The rope moves parallel to the slope with a constant speed of 1.0 m/s. The force of the rope does 880 J of work on the skier as the skier

    asked by Anonymous
  239. english

    The Hudson River was one the chief trading route for the western frontier. The phrase is for the western frontier. Its an adjective phrase because it describes was once the chief trading route right?

    asked by Anonymous
  240. english

    Boulder Dam was the original name for Hoover Dam. The phrase is for hoover Dam. Is it an adjective or an adverb phrase?

    asked by Anonymous
  241. geometry

    Suppose a slice of a 10-inch pizza has an area of 15 square inches.What is the angle of this slice? Make a sketch to illustrate your answer.

    asked by Anonymous
  242. English 7 (answer quick)

    What does it means what something say evaluate a person. Does it means I have to describe the person using adj.?

    asked by Laruen
  243. english

    Organized in 1884, the first African American professional baseball team was the Cuban Giants. Is was the Cuban Giants a phrase?

    asked by Anonymous
  244. Statistics

    There are 200 students in a sample. How many of these students will have scores that fall under the score of 41? Mean is 45, standard dev. is 4.

    asked by Vicki
  245. Psychology Please Help!!

    Both Albert's mother and father had dropped out of high school. His brother left school in the eighth grade. Based on the performance of his family members, Albert does not expect that he will complete high school. He had developed a(n): a. availability

    asked by Anonymous
  246. english

    The jacket with a blue collar is mine. What are the phrases?

    asked by Anonymous
  247. english

    My goal is to become a forest ranger. What are the phrases?

    asked by Anonymous
  248. english

    Guillermo hopes to visit us soon. What are the phrases?

    asked by Anonymous
  249. english

    On the sidelines, the coach paced nervously. What are the phrases?

    asked by Anonymous
  250. physics

    1-kg salmon is hooked by fishermen and it swims off at 2m/s. The fishermen stops the salmon in 50cm by breaking his reel. How muchfroce does the fishing line exert on the fish?

    asked by Agata
  251. math

    subtract and simplify 3/4 minus 5/8

    asked by pat
  252. english

    The student, frowning slightly, erased the title. What are the phrases?

    asked by Anonymous
  253. Math

    During a checkers game, there are 16 pieces left. The ratio of black to red is 3:5. How many black pieces are on the board?

    asked by Mercedez
  254. Reading

    L. Frank Baum was born in New York in 1856. He is best known as the author of the book The Wonderful Wizard of Oz. Baum thought of the idea for his book one evening in 1899. He was making up a story to tell his sons and their neighborhood friends. He

    asked by Mikka
  255. math

    How do I find the length of curve f(x)=3x^2-2x+3 on the interval [1,4]? I have no idea on how to start this. Anyways, thanks in advance!

    asked by W
  256. Physics

    The average intensity of sunlight at earth's surface is approximately 1400 W/m^2 , if the Sun is directly overhead. The average distance between the earth and the sun is 1.50E11 m. What is the average power emitted by the Sun? Ok so intensity is power over

    asked by Raquel
  257. physics

    19. In Figure 10-1, if the force exerted on a 3.0-kg backpack that is initally at rest is 20.0 N and the distance it acts over is 0.25 m, what is the final speed of the backpack?

    asked by w
  258. english

    The charity received donations for the hungry. Is received donations the predicate and for the hungry the phrase?

    asked by Anonymous
  259. Math

    Your heart bears 240 times in 4 minutes. What is your heart rate in beats per second? Explain

    asked by Anon
  260. math

    In the voting for city council precinct 5 only 1/2 of all eligible voters cast votes. Shelley- 1/10 votes received and Daley 2/8 votes received. what fraction of all eligible voters voted for shelley? Daley? Who received the most votes? Thank you very much

    asked by sarah
  261. English 7

    What adj. is when someone drop out of school?

    asked by Laruen
  262. calculus

    Find the amount of a continuous money flow in which $175 per year is being invested at 8%, compounded continuously for 20 years.

    asked by Jordan
  263. Jiishka

    How do you put a webpage to this website?

    asked by Luke
  264. Texas History

    Which native tribes lived in the South Plains of Texas?

    asked by Izzy
  265. phyisics

    A computer to be used in a satellite must be able to withstand accelerations of up to 23 times the acceleration due to gravity. In a test to see if it meets this specification, the computer is bolted to a frame that is vibrated back and forth in simple

    asked by christi
  266. Khan

    A person lifts a 4.3 kg cement block a vertical distance of 1.3 m and then carries the block horizontally a distance of 5.3 m. The acceleration of gravity is 9.81 m/s 2 . a) Determine the work done by the person in the process. Answer in units of J

    asked by Hajib
  267. math

    tell which place value positions need to be regrouped after mutiplying a single digit and 2 digit number like 3x29

    asked by Jeremy
  268. physics

    A skier is slidding downhill at 8m/s. When she reaches an icy patch on which her sis move freely with negligible friction. The difference on altitude between the top of the icy patch and its bottom is 10m. What is the speed of the skier at the bottom of

    asked by Agata
  269. english

    I shivered, and ____________* again the moving thing upon the sand-bank. *active voice,past tense of TO SEE

    asked by stacey myers
  270. SOCIAL STUDIEs

    Eli Whitney revolutionized indusrty in the north and south and impacted the Civil War. What 2 key innovations is he attributed with?

    asked by Ana
  271. english, comics, mythology folklore

    What are the changes between the real story of Emperor Norton and the story 3 septembers and a january

    asked by cindy
  272. world history

    what is the term for european nations seek colonies during World war one?

    asked by Marta
  273. Science

    What do polar bears and automobiles have in common?

    asked by Grace
  274. geometry

    the longer base of an isosceles trapezoid is 14 feet. the nonparallel sides are each 10 feet long and the length of diagonal is 16 feet. find the measure of a base angle

    asked by Anonymous
  275. geometry

    The width of a rectangle is 6 cm less than its length. If the area of the rectangle is 135 square cm, find the dimensions. Then find the perimeter of the rectangle.

    asked by jay
  276. Geometry

    What is the x-intercept of the graph 4x-6y=12?

    asked by Lexana
  277. Science

    Definition for Biofuel,Hydroelectricity,Geothermal,and wind energy

    asked by Ana
  278. physics

    A force of 10N is used to lift 600-kg ball from the ground to the a height of 1.8m when it is let go. What is the speed of the bal when it is let go?

    asked by Agata
  279. math

    You borrow $90 from Grandma. You pay back $15 a week. Write an equation in standard form that represents the amount owed(y) after x weeks.

    asked by Jackie
  280. Chem

    How would one balance the following redox reaction using the half reaction method? Fe(OH)2 + O2 + H2O ---> Fe(OH)3 This is in my chemistry teacher's homework, and it comes up with an answer, but I don't see how to use the half reaction method when there is

    asked by Jake UCD 11/15/11
  281. geometry

    the means of a proportion are 4 and 17. List all possible oairs of positive integers that could be the extremes of the proportion

    asked by dana
  282. language

    Are the nouns in this sentence brains and watermelons? Their brains may be as big as watermelons.

    asked by Dakota
  283. Pre Calc

    tan(tan-1 7.4)=?

    asked by Jacob
  284. Pre Calc

    sec(cos-1 (4/5))=?

    asked by Jacob
  285. finance

    You have just graduated and one of your favorite courses was Financial Management. While you were in school, your grandfather died and left you $1 million. You have decided to invest the funds in a fast-food franchise and have two choices–Franchise L and

    asked by kelly
  286. physics

    A grocery shopper tosses a(n) 9.4 kg bag of rice into a stationary 19.9 kg grocery cart. The bag hits the cart with a horizontal speed of 7.0 m/s toward the front of the cart. What is the final speed of the cart and bag? Answer in units of m/

    asked by Anonymous
  287. Math

    which amount is greates? 1/3, 1/4, 1/2 /16 of 12

    asked by Xcequiel
  288. Chemistry

    Glycine,C2H502N, is important for biological energy.Find the heat of combustion deltaHrxn. Delta H [C2H5O2N]=-537.3 kj/mol DeltaH [ CO2(g)=-393.5 kj/mol DeltaH[H2O(l)]-285.8 kj/mol

    asked by Nicole
  289. Chemistry

    How many grams of CO2 would be produced from the following reaction sequence? HI + KHCO3 -> KI + H2CO3 H2CO3 -> H2O + CO2 if 20.0 ml of 1.00 M KHCO3 solution is mixed with 20.0 ml of 1.50 M HI solution.

    asked by Kristi
  290. calculus

    A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 104 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery

    asked by Anonymous
  291. physics

    A 150L water heater is rated at 8kW. If 20%if its heat escapes, how long does the heater take to raise the temp of 150-L of water from 10 to 60 degrees C

    asked by Agata
  292. Biochemistry (BCMB)

    why do plants already have ATP and NADPH for chemical energy from lights reactions of photosynthesis but they still go on to manufacture energy-rich sugars?

    asked by Amanda
  293. ANATOMY

    place the following in order (1-11): Myosin heads bind to active sites on actin molecules ATP is hydrolyzed Myosin heads return to their high-energy shape(******), ready for the next working stroke Calcium ions bind to troponin Cycling continues until

    asked by Katie
  294. SCIENCE

    HOW MUCH HEAT ENERGY TRANSFERRED TO THE COLD WATER

    asked by LINDSEY
  295. Physics

    A 26-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 220 J from 500 J. How high does she rise during this interval? Neglect air resistance.

    asked by Gabby
  296. physics

    A 25 g bullet traveling at 280 m/s passes completely through a wooden block, initially at rest on a smooth table. The block has a mass of 1000 g. The bullet emerges traveling in the same direction, but at 50 m/s. What percentage of total kinetic energy is

    asked by Rebecca
  297. physics

    how much force is exerted on a bag that is lifted at 5m/s^2 with 18.5kg in it

    asked by zach
  298. science

    HOW MUCH HEAT ENERGY TRANSFERRED TO THE COLD WATER

    asked by LINDSEY
  299. science

    HOW DOES ENERGY TRANSFER HAPPEN

    asked by LINDSEY
  300. science

    HOW DOES ENERGY TRANSFER HAPPEN

    asked by LINDSEY
  301. science

    HOW DOES ENERGY TRANSFER HAPPEN

    asked by LINDSEY
  302. SCIENCE

    WHAT IS EQUILIBRIUM

    asked by LINDSEY
  303. chemistry

    How much water must be added to 20liter of 12molar base solution to makt it 8molar?

    asked by merlinda
  304. chemistry

    How much water must be added to 20liter of 12molar base solution to make it 8molar?

    asked by merry lyn