Questions Asked on
April 9, 2013

  1. Math Ms. Sue please

    1. You flip a coin 30 times and get heads 11 times, so the chance of getting heads is eleven over thirty . Is this an example of theoretical or experimental probability? (1 point) theoretical experimental 2. You have made 3 out of 10 of your last free

    asked by Delilah
  2. Math

    A bag contains 9 tiles numbered 1 to 9. P(4) one-ninth = experimental; the result is found by repeating an experiment. experimental; the result is based on the number of possible outcomes. theoretical; the result is found by repeating an experiment.

    asked by Anonymous
  3. algebra graphing

    according to some students, what is the true purpose of homework?

    asked by danielle
  4. statistics

    A mail order company has 8% success rate. If it mails advertisements to 600 people, find the probability of getting less than 40 sales.

    asked by Anonymous
  5. Math

    Find the circumference of the circle. Round to the nearest tenth. The middle of the circle is 44mm

    asked by Gio
  6. Chemistry

    In a zinc-copper cell, Zn | Zn+2(1M) || Cu+2(1M) | Cu, which electrode is negative? a. Cu(s) b. Zn(s) c. Zn+2(aq) d. Cu+2(aq) Its A or C. Not sure. Please help.

    asked by Cassie
  7. Chemistry: Please check answers

    12. What balances charges that may build up as reduction and oxidation occur in a voltaic cell? *the salt bridge one of the half-cells the electrolyte solutions the moving electrons 13. What is the electrode in the center of the most common dry cell made

    asked by Cassie
  8. statistics

    the mean annual salary for employees at a company is 36,000. at the end of the year, each employee receives a 1,000 bonus and a 5% raise( based on salary)what is the new annula sala

    asked by angela
  9. statistics

    The ages of five randomly chosen cars in the parking lot are determined to be 7,9,3,4 and 6 years old. If we consider this sample in groups of 3, what is the probability of the true mean falling between 5.5 and 6.5?

    asked by terri
  10. AP CHEM HELP

    When NH3 is added to solid Hg2Cl2, some of the mercury ions are oxidized and some are reduced. A reaction where the same substance is both oxidized and reduced is called a disproportionation reaction. Write equations for each of these half-reactions. HELP

    asked by Colin
  11. Area of Triangle

    Find the missing dimension of a triangle: height: 15 ft area: 285 ft squared

    asked by Wyatt
  12. physics

    The figure below shows three circuits, each consisting of a switch and two capacitors, initially charged as indicated. Let qL represent the charge on the left-hand capacitor in each circuit. The switches in all circuits are then closed.

    asked by bryan
  13. Chemistry

    The question is: what is the ratio [NH3/[NH4+] in an ammonia/ammonium chloride buffer solution with pH= 10.00? (pKa for ammonia=9.25) When working the problem, I tried to solve it a bit backwards, in that I plugged in each of the multiple choices I was

    asked by Marcus
  14. Area of triangles

    Aubrey is painting a mural of an ocean scene. The triangular sail on a sailboat has a base of 4 feet and a height of 6 feet. Aubrey will paint the sail using a special white paint. A can of this paint covers 10 square feet. How many cans of white paint

    asked by Wyatt
  15. Physics 203

    A 5m long diving board of negligible mass is supported by two pillars. One pillar is at the end of left of the diving board, the other is 1.50m away. Find the forces exerted by the pillars when a 90kg diver stands at the far end of the board.

    asked by ash
  16. geometry

    Which description does NOT guarantee that a trapezoid is isosceles? A. congruent bases B. congruent legs C. both pairs of base angles congruent D. congruent diagonals

    asked by Anonymous
  17. Statistics

    Given a study of 9804 overweight or obese subjects with preexisting cardiovascular disease and/or type 2 diabetes. Subjects randomly assigned to subitramine (4906 subjects) or a placebo (4898 subjects) in a double-blind fashion. Primary outcome was

    asked by Help Please
  18. Chemistry: please check

    At which electrode does oxidation occur in a voltaic cell? anode only cathode only *both anode and cathode either anode or cathode, depending on the metal Thank You.

    asked by Cassie
  19. physics

    1)An elastic material has a length of 36cm when a load of 40N is hung on it and a length of 45cm when a load of 60N is hung on it. The original length of spring is? 2)A force of 100N stretches an elastic spring to a total of 20cm. If an additional force of

    asked by Anne
  20. precalculus

    Find cos(t) where the terminal ray of the angle t radians in standard position passes though the point (-4,-3).

    asked by marie darling
  21. physics problem!!

    If the water molecules in 5.70 g of water (H2O) were distributed uniformly over the surface of the Earth, how many such molecules would there be on 1.40 cm2 of the Earth's surface? -Molar mass Hydrogen gas(H2)=2.02 g/mol -Molar mass Oxygen gas (O2) = 32.0

    asked by boom
  22. Math

    You have 2 pairs of shorts, 2 pairs of shoes, 2 shirts how many combinations could you wear

    asked by Dakota
  23. Physics

    A circuit consists of a self inductor of L=0.003 H in series with a resistor R1=5 Ohm. Parallel to these is a resistor R2=10 Ohm. A battery of V0=9 volt is driving the circuit. Current has been running for 10 minutes. (a) How much energy (in Joules) is now

    asked by abdul rahman
  24. home work

    A framed picture has length 50 cm and width 40 cm . The picture itself has area 1344 cm^2. How far is it from the edge of the picture to the edge of the frame if thid didtance is uniform around the picture ?

    asked by Kim
  25. physics

    a player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 28 m/s. what is the maximum height attained by the ball? Round the answer to the nearest tenth of a meter.

    asked by faith
  26. algbra 1

    Name the property the equation illustrates. –5 + (8 + 10) = (–5 + 8) + 10

    asked by shahara
  27. math

    Emma weighed 6 pounds, 9 ounces when she was born. If her weight doubled by the time she was six months old, how much did she weigh then?

    asked by Anonymous
  28. physics

    a load 500N is raised 0.2m by a machine in which an effort of 150N moves 1m. what is the work done on the load?

    asked by shanna-kay
  29. social studies

    Referencing Vladimir Lenin, "What is To Be Done?" (1902) Why do you think it was left to the “bourgeois intelligentsia” to transform the quest for working class rights into a philosophy?

    asked by lizzy
  30. chemistry

    calculate the pH of a 0.50 m solution of HCN. Ka for HCN is 4.9*10^-10 (The chemical equation for this.)

    asked by Ahmad
  31. MATH

    A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4

    asked by Luna
  32. chemistry

    How do I calculate the theoretical yield of a catalytic hydrogenation? I have the #s, I just have no idea how to apply it. It's 1-Octene --H2PtCl6--> n-Octane.

    asked by Geoff
  33. maths

    Using the prime factor method find the square root of 31.36

    asked by rahub
  34. physics 203

    The figure shows a 1.50kg block at rest on a ramp of height, h. When the block is released, it reaches the bottom of the ramp and moves across a surface that is frictionless except for one section of width 10cm that has a coefficient of kinetic friction

    asked by ash
  35. ecology

    Ten breeding pairs of rabbits are introduced onto an island having no natural predators and a good supply of water and food. What will most likely happen to the rabbit population? 1. It will decrease and then increase indefi- nitely. 2. It will die out

    asked by sally
  36. physics

    In one mole or 18 grams of water, the total negative charge of all the electrons is: a. zero because its electrically neutral. b. less than one C c. almost 100,000 C. d. almost one million C. e. none of these

    asked by Anonymous
  37. Physics

    Two chunks of ice are sliding on a frictionless frozen pond. Chunk A, with mass mA=5.0kg, moves with initial velocity vA1=2.0m/s parallel to the x-axis. It collides with chunk B, which has a mass mB=3.0kg and is initially at rest. After the collision, the

    asked by Anonymous
  38. Physics

    Two Balls of masses mA = 45 grams and mB = 65 grams are suspended as follows: both Balls are hanging by a 30 cm string and are vertically parallel to each other. The lighter ball is pulled away to a 66 degree angle with the vertical and is released,

    asked by Enzo
  39. Base of a parallelogram

    Find the height of a parallelogram with base 9.44 meters and area 70.8 square meters.

    asked by Wyatt
  40. social science statistics

    a professor was curious to whether the students in a very large class she was teaching who turned in their first scored differently from the overall mean on the test.The overall mean score on the test was 75 with a standard deviation of 10;the score were

    asked by mike
  41. Chemistry

    fumes were allowed to escape from the crucible. (what is the composition of the fumes )

    asked by Student101
  42. chemistry 1 help please!

    Write a chemical equation that shows how acid rain H2SO3 was produced from SO2 gas and water in a zip sealed bag? My chem. teacher never explained how to do this and I have several other questions on this type of subject. If you could help me out it would

    asked by Jess
  43. math

    Adult tickets for a play cost $19 and child tickets cost $17. If there were 36 people at a performance and the theatre collected $646 from ticket sales, how many children attended the play?

    asked by misty
  44. Algebra

    Answer the following quadratic function f(x)= x^2 + 6x - 16 a)What is the vertex (h,k)of f? b)What is the axis of symmetry? c)What are the intercepts?

    asked by Kayleigh
  45. Math

    What will the graph look like for a system of equations that has no solution? A. The lines will be perpendicular. B. The lines will cross at one point. C. Both equations will form the same line. D. The lines will be parallel. I think it is D..?

    asked by Cassie
  46. chemistry

    When 86.7 g of water at a temperature of 73 °C is mixed with an unknown mass of water at a temperature of 22.3 °C the final temperature of the resulting mixture is 61.7 °C. What was the mass of the second sample of water? (Specific heat of water 4.184

    asked by Anonymous
  47. social studies

    In referrencing Lenin's "What is To Be Done" Lenin is here calling for unity among socialist thinkers, emphasizing that criticisms made by socialist thinkers against one another’s thoughts strengthen the enemy (bourgeois ideology”). Put in other words,

    asked by lizzy
  48. Physics 203

    A block with mass of 5.0kg is suspended from an ideal spring having negligible mass and stretches the spring 0.20m to its equilibrium position. A) What is the force constant of the spring? B) The spring is then stretched 0.80m from its equilibrium position

    asked by ash
  49. Physics-

    -Steam at 100 ¡ãC is mixed with 166.4 g of ice at ¨C32.8 ¡ãC, in a thermally insulated container, to produce water at 44.6 ¡ãC. Ignore any heat absorption by the container. -Cwater = 4186. J/(kg ¡ãC) -Cice = 2090. J/(kg ¡ãC) -Lf,water = 3.33

    asked by blur oh no
  50. UOG

    An initial investment of $12,000 is invested for 2 years in an account that earns 4% interest compounded quarterly. Find the amount of mnoey in the account at the end of the period.

    asked by Amy
  51. Chemistry

    I'm reviewing for a test and I'm on Le Chatelier's principle. Decreasing the temperature of an exothermic reaction shifts the equilibrium to the right? I understood this weeks ago but now I can't remember. Wouldn't decreasing the temperature cause there to

    asked by a Canadian
  52. Math

    The profit (in millions of dollars) from the sale of x million units of Blue Glue is given by p= .7x-25.5. The cost is given by c= .9x +25.5 (a) Find the revenue equation. (b) What is the revenue from selling 10 million units? (c)What is the break-even

    asked by Brooke
  53. Math

    A recipe for fruit punch calls for 2 1/2 c of orange juice, 1 1/3 c of pineapple juice, and 1 3/4 c of soda water. If June makes 4 times the recipe, how many cups of fruit punch will she have?

    asked by Nick
  54. Physics

    1) A circular disk 0.20m in diameter starts from rest and accelerates with constant angular acceleration to an angular acceleration to an angular velocity of 210 rad/s in 10.00s. Find the angular acceleration and the angle which the disk has turned in

    asked by Anonymous
  55. Physics

    Calculate the water pressure at the base of the Hoover Dam. The depth of water behind the dam is 220

    asked by Ericca
  56. Chemistry

    How long does it take (in minutes) for light to reach Jupiter from the Sun, a distance of 8.258 × 108 km?

    asked by Lyndzey
  57. Algebra

    A small painting has an area of 400 cm^2. The length is 4 more than 2 times the width. Find the dimensions of the painting. Solve by completing the square. Round answers to the nearest tenth of a centimeter.

    asked by Anonymous
  58. Gr 12 Chem

    Given: N2 + 3H2 = 2NH3 + 92.5 KJ, what is the delta h of f for NH3?

    asked by Ayesha
  59. science 8th grade

    1. The thermal energy of an object is _____. (1 point) its potential energy its average kinetic energy its potential energy minus its kinetic energy its kinetic energy plus its potential energy Thanks, jessica :)

    asked by jessie
  60. Macroeconomics

    The money supply in Freedonia is $200 billion. Nominal GDP is $800 billion and real GDP is $400 billion. Assuming that velocity is stable, if real GDP grows by 10 percent this year, and if the money supply does not change this year, what is the change of

    asked by Jess
  61. algebra

    write a polynomial that represents the sum off an odd integers 2n+1 and the next two consecutive odd integers

    asked by Anonymous
  62. Chemistry

    Which of the following result in buffered solutions when equal volumes of the two solutions are mixed? a.) .1 M HCl and .1 M NH4Cl b) .1 M HCl and .1 M NH3 c.) .2 HCl and .1 M NH3 d.) .1 M HCl and .2 M NH3 By def. I know that a buffed solution is made from

    asked by Marcus
  63. Math

    A bicycle trail is 7miles and 880 yards long.How many total yards is the bicycle trail

    asked by Marissa
  64. Social Studies

    1.What is a savanna? A savanna is a tropical or subtropical woodland ecosystem 2.What would you expect to find if you visited a savanna in Africa? Animals,grass,trees,plants 3.Why do you think so many animals live on a savanna? There's more grass and water

    asked by Jerald
  65. math

    In a manufacturing process, each item leaving an assembly line will be examined by two inspectors: A and B individually. Based on past experiences, Inspector A detects 60% of the defective items. If the defective items are not detected by Inspector A, 90%

    asked by yu
  66. health

    if health care cost continue to rise, insurance companies fear that

    asked by bonnie
  67. Chemistry

    A 0.750 g sample of an unknown solid is dissolved in 100 mL of water and acidfied with 25 mL of 3 M H2SO4 then titrated with a 0.0200 M KMnO4 solution. If the unknown solid requires 12.5 mL of the KMnO4 solution to reach the endpoint, what is the % sodium

    asked by Aaron
  68. physics

    A wave with an amplitude of 1.94 m interferes with a second wave with an amplitude of 0.85 m. What is the largest resulting wave that could occur if these two waves destructively interfere?

    asked by Anonymous
  69. math

    The profit (in millions of dollars) from the sale of x million units of Blue Glue is given by p= .7x-25.5. The cost is given by c= .9x +25.5 (a) Find the revenue equation. (b) What is the revenue from selling 10 million units? (c)What is the break-even

    asked by Brooke
  70. chemistry

    find the mass in grams of a molecule of aspirin c9h8o4

    asked by Anonymous
  71. physics

    The car is travelling along the road with a speed of v  (300 / s) m/s, where s is in meters. Determine the magnitude of its acceleration when t = 3 s if t = 0 at s = 0. ( ans: a = 1.28 m/s2).

    asked by Anonymous
  72. english

    How many fish do you want to catch?" The fishing guide asked us. is the T in the capitalized

    asked by daniel
  73. Probabilities

    In a cookie jar, there are 6 chocolate cookies and 8 oatmeal cookies. I take out the cookies one at a time and proceed to eat them. The probability that the 7th cookie that I eat is a chocolate cookie is a/b, where a and b are positive coprime integers.

    asked by Anna
  74. Physics

    A baseball is thrown from the rood of a 27.5m tall building with an initial velocity of magnitude 16.0m/s and directed at an angle of 37 degrees above the horizontal. A) Using energy methods and ignoring air resistance, calculate the speed of the ball just

    asked by Anonymous
  75. accounting

    Jan Nab is the sole owner of Deer Park, a public camping ground near the Lake Mead National Recreation Area. Jan has compiled the following financial information as of December 31, 2010. Revenues during 2010—camping fees $140,000 Market value of

    asked by cathy
  76. physics

    Two Bals. of masses mA = 45 grams and mB = 65 grams are suspended as shown. The lighter ball is pulled away to a 66 degree angle with the vertical and released: ----------------------------- /| | - /è| | | / | | | 30 cm / | | | mA | | | mA mB - where è =

    asked by SC
  77. English

    Write a 75-150 word essay detailing your previous writing experience. Use the following questions to help you to think about your role as a writer: •In what type of environment do you do your best writing? •How would you characterize your writing? Has

    asked by Kisha
  78. chemistry

    Aspirin, C 9 H 8 O 4 , slowly decomposes at room temperature by reacting with water in the atmosphere to produce acetic acid, HC 2 H 3 O 2 , and 2-hydro x ybenzoic acid, C 7 H 6 O 3 (this is why old bottles of aspirinoften smell like vinegar):C 9 H 8 O 4 +

    asked by vikha
  79. math

    A population of animals oscillates between a low of 1098 on January 1 (t = 0) and a high of 2344 on July 1 (t = 6). (a) Find a formula for the population, P, in terms of the time, t, in months.

    asked by emily
  80. chemistry

    In the experiment you have added 50.0 mL of Ni(H2O)6 2+ to the calorimeter. To this you add 5.0 mL of ethlylenediamine and measure the change in temperature of the solution as the reaction proceeds. The temperature increases by 3.4 oC. Calculate the

    asked by Barb
  81. use the given zero

    Use the given zero to find the remaining zeros of the function. f(x)=x^3-2x^2+9x-18;zero;3i Enter the remaining zeros of f =

    asked by Jill
  82. life orientation

    what are the human and enviromental factors that cause ill-health?

    asked by buhle
  83. physics

    Blood takes about 1.50 s to pass through a 2.0-mm-long capillary. If the radius of the capillary is 5.00 um and the pressure drop is 2.60 kPa, calculate the viscosity of blood

    asked by Alex
  84. College Chemistry

    You weigh a sample of a monoprotic unknown acid and dissolve it in 50.00 mL of distilled water. Exactly half of this solution is titrated with Sodium Hydroxide to the phenolphthalein end point. The pH of the other half of the original solution is measured

    asked by Kim
  85. Chemistry

    If the temperature of 150.0g of water increased from 23.3C to 44.8C, how much heat was absorbed

    asked by Joel
  86. chemistry

    An automobile tire contains air at a pressure of 200. kPa and 25°C. The tire and its air heat up during traveling. If the pressure increases to 250. kPa but the volume remains the same, what is the temperature of the air inside the tire?

    asked by hi
  87. Statistics

    Length of stay in a chronic disease hospital of a certain patient is 60 days with a standard deviation of 15. If it is reasonable to warrant an approximately normal distribution. Of lengths of stay find the probability that a randomly selected patient from

    asked by Varonica b. Miller
  88. Physics

    A package is thrown down a curved ramp as shown in the figure. The package moves from A to B through a quarter-circle with radius R=3.00m. The mass of the package is 25.0kg. The package starts from rest at point A and there is no friction. A) Find the

    asked by Anonymous
  89. Chemistry equation

    Write a correctly balanced series of chemical equations to describe the stepwise protonation of carbonate ion. Na2CO3 with HCl

    asked by Jaden
  90. Chemistry

    Calculate volume of 6MHCL required to prepare a 250 ml of a 0.15MHCL solution??

    asked by Karen
  91. Chemistry

    Calculate volume of 6MHCL required to prepare a 250 ml of a 0.15MHCL solution??

    asked by Karen
  92. Chemistry

    Okay, I feel like this question should be really easy because it's a multiple choice question but how do you figure it out?? I'm completely drawing a blank. Consider the following equilibrium N2O4(g) 2NO2(g) Kc = 4.8E-3 Which set of concentrations

    asked by a Canadian
  93. psychology

    In the article "Conditioned emotional reactions" by John B. Watson and Rosalie Raynor., Explain the initial pairing of the bar and the rat in terms of learning through classical conditioning What are unconditional stimulus (US) conditional stimulus (CS)

    asked by slomomo
  94. Science ASAP please

    1. Which of the following is an example of density? (1 point) ice floating on top of a river convection currents that cause wind oil spill cleanup all of the above 2. What type of property is density? (1 point) chemical property size-independent physical

    asked by Delilah
  95. Calculus

    The unit selling price p (in dollars) and the quantity demanded x (in pairs) of a certain brand of women’s shoes are given by the demand equation p(x) = 100e^-0.0001x f or 0 _< x _< 20,000 a. Find the revenue function,R. (Hint: R(x)= x(p(x)), since the

    asked by Wiz
  96. Physics

    Calculate the water pressure at the bottom of the 110--high water tower

    asked by Ericca
  97. Physics

    HELP!!! Consider an airplane with a total wing surface of 140 . At a certain speed the difference in air pressure below and above the wings is 3.0 of atmospheric pressure.Find the lift of the airplane

    asked by Ericca
  98. math

    If 6 more than 8 times a number equals 30, what's the number?

    asked by Anonymous
  99. physics

    A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 34 N. Starting from rest, the sled attains a speed of 2.9 m/s in 9.9 m. Find the coefficient of kinetic friction between the runners of the sled and the snow

    asked by Anonymous
  100. physics

    An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be

    asked by stuck
  101. viscosity of blood physics

    Blood takes about 1.50 s to pass through a 2.0-mm-long capillary. If the radius of the capillary is 5.00 um and the pressure drop is 2.60 kPa, calculate the viscosity of blood thanks in advance

    asked by Anonymous
  102. Statistics

    In his management information systems textbook,Professor David Kroenke raises and interesting point:"If 98% of our market has Internet access,do we have a responsibility to provide non-Internet materials to that other 2%?Suppose that 98% of the customers

    asked by John
  103. math

    A math contest consists of ten problems.Three points are given for each correct answer. One point is deducted for each incorrect answer. Andy answers all the problems and scores 18 points. How many correct answers does he have?

    asked by matt
  104. chemistry

    When 86.7 g of water at a temperature of 73 °C is mixed with an unknown mass of water at a temperature of 22.3 °C the final temperature of the resulting mixture is 61.7 °C. What was the mass of the second sample of water? (Specific heat of water 4.184

    asked by Anonymous
  105. science questions true or false!

    5. Air is a good conductor of heat. (1 point) true false 6. When you hold a ball above the ground it has kinetic energy. (1 point) true false 7. A good refrigerant must have a low boiling point. (1 point) true false

    asked by jessie
  106. physics

    five joules of work are needed to shift .5 c of charge from one place to another. the potential differences between the places is

    asked by Susan
  107. chemistry

    How many grams of dichloromethane result from reaction of 1.60 of methane if the yield is 48.8 ?

    asked by larry
  108. Chemistry

    At what temperature does 150 mL of n2 at 300 K and 1.13 atm occupy a volume of 550 mL at a pressure of 1.89 atm?

    asked by Elijah
  109. Computer (Visual Basic)

    You are in the process of selecting the BackColors and ForeColors for you new application. When you originally learned to use Visual Studio, you were only aware of one of the palettes that was available to you, but your developer colleague informs you that

    asked by Derek
  110. accounting

    On April 25, 2010, Bullseye Company purchased all of the outstanding common stock of Vista Company, paying $14,000,000. The book values and fair values of Vista's assets and liabilities acquired are shown below in dollar amounts: Accounts Book Value Fair

    asked by Lisa
  111. Math

    A bag contains 4 blue, 4 red, and 4 green marbles. Four marbles are drawn at random from the bag. How many different samples are possible which include exactly two red marbles?

    asked by Kierra
  112. Math

    15-(12(divided by)2)+(-3x4)

    asked by Matt
  113. alegebra

    the perimeter of a basketball court is 268 feet. the area is 4200 ft2. find the dimensions. using quadractics

    asked by Vinnie
  114. physics

    An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be

    asked by stuck
  115. Urgent Help needed in PHYSICS!

    A spherical balloon is inflated to a diameter of 20.0 cm. Assume that the gas in the balloon is of atmospheric pressure (101.3 kPa) and is at a temperature of 20.0 ¡ãC. It is then taken by a diver 15.0 m under the sea. The temperature of the seawater at

    asked by tommy
  116. Math

    Every time Mr. Cold born throws a ball of paper in the garbage can, the probability the ball goes in the cans is 3/4. What is the probability he misses 2 times in a row? Please show all work. Please help I don't understand probability

    asked by Cherie
  117. Math

    The teams ratio of games won to games played was 9 to 11. If the team played 66 games, how many did the team win? Explain your answer.

    asked by Jill
  118. physics - viscosity of blood homework question

    Blood takes about 1.50 s to pass through a 2.0-mm-long capillary. If the radius of the capillary is 5.00 um and the pressure drop is 2.60 kPa, calculate the viscosity of blood not sure how to approach this. any help is appreciated!

    asked by A
  119. american history

    For revolutionaries like Sam Adams, what term embraced a way of life, a core ideology, and an uncompromising commitment to liberty and equality.

    asked by nicholas
  120. physics 203

    Water (p=1000kg/m^3) enters a pipe on the ground with an inside diameter of 2cm at a pressure of 4x10^5 Pa. Then a 1-cm diameter pipe leads the water to a height of 5m above the ground. The flow speed at the inlet is v1=1.5m/s. A) Find the flow speed at

    asked by ash
  121. vocab

    Aunt Lorna ( conferred, balked) when the waiter at the seafood restaurant told her that the dinner special-the"catch of the day"-was $41.00. balked

    asked by cici
  122. Algebra

    Answer the following quadratic function f(x)= x^2 + 6x - 16 What is the axis of symmetry?

    asked by Kayleigh
  123. rational zeros theorem

    Use the rational zeros theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x)=25x^4+26x^3+126x^2+130x+5 Find the real zeros x= Use the real zeros to factor f f(x)=

    asked by Jill
  124. Math

    A bag contains 4 blue, 4 red, and 4 green marbles. Four marbles are drawn at random from the bag. How many different samples are possible which include exactly two red marbles?

    asked by Kierra
  125. science 3 questions!!

    2. A device that can be used both for cooling and heating is a _____. (1 point) heat engine compressor heat pump vaporizer 3. All objects emit _____ radiation. (1 point) electromagnetic kinetic thermal solar 4. Fast food restaurants keep food hot with

    asked by jessie
  126. ECONOMICS

    Among perfect competition, monopolistic competition, oligopoly, and monopoly, how would you classify the markets for each of the following drinks ? Tap water Bottled water Cola Beer

    asked by RAJA
  127. physics

    An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be

    asked by stuck
  128. math

    All varieties of a certain brand of cookies are $3.50 A person buys peanut butter and chocolate chip cookies. Write an expression that tepresents the total cost.

    asked by Chris
  129. business calculus

    the total cost of producing x units of toys is C(x)=110-4x+〖.02x〗^2. a.find the marginal cost b. if 50 toys are manufactured, what is the rate of change of the total cost? c.what is the amount in peso of the actual cost of manufacturing the 51st toy?

    asked by ma.gelifer
  130. Science

    Person weighing 650N lies on a bed of nails,each nail has area of 1m2 Assume 4Nm^-2 pressure is painful what is the smallest number of nails they could lay on and not be hurt

    asked by Bill
  131. physics

    A square loop (side L) spins with angular frequency ω in field of strength B. It is hooked to a load R. Write an expression for current I(t) in terms of B,L,R,ω and t (enter omega for ω). (b) How much work is done by the generator per revolution?

    asked by Ulises
  132. math algebra

    the perimeter of a basketball court is 268 feet. the area is 4200 ft2. find the dimensions. using quadratics

    asked by Vinnie
  133. Algebra

    Use the given zero to find the remaining zeros of the function. f(x)=x^3-2x^2+9x-18;zero;3i Enter the remaining zeros of f =

    asked by Jill
  134. Math

    What is the probability of tossing two coins and having them both show heads? Show all work. Please help I don't understand this.

    asked by Cherie
  135. Physics

    Two satellites, X and Y, orbit a planet in nearly circular orbits. Satellite X takes 20 days to complete one orbit, while satellite Y takes 160 days. If satellite X has orbital radius 1.0r, what is the orbital radius of satellite Y?

    asked by Luke
  136. physics

    Two point charges, +3.27 µC and -6.15 µC, are separated by 1.08 m. What is the electric potential midway between them?

    asked by Anonymous
  137. english

    In a fit of anger after an argument, I __________ out all of my friend's letters and pictures.

    asked by Anonymous
  138. science

    A hydraulic jack is needed to raise an object with a force of 4000 N to a height of 3 metres above the ground. Will the jack do the job? (Answer after working through the rest of the question. I would really appreciate it if someone would please help me

    asked by Cherie
  139. Math

    I need some help. A biologist finds that the population of a certian type of bacteria double seach half-hour. An initial culture has 60 bacteria. 1. What is the population after 3 hours? 2. How long will it take for the number of bacteria to reach 983,040?

    asked by Kris
  140. math

    1. Pat needed more brushes. Pat knew that the Paint Spot was 7/10 of a kilometer away. Sandy said, "People's Paint Store is 3/10 of a kilometer closer." How far away was People's Paint Store? 2. Sandy brought a large bottle of soda to work. It was 3/4

    asked by Anonymous
  141. english

    How would i write a thesis sentence for a biography on C.S. Lewis?

    asked by student17
  142. Physics

    Consider the process of charging a parallel plate capacitor with circular plates of radius R=5 cm separated by a distance d=0.2 cm. At some time t1, the capacitor is being charged with a current I=0.04 A. Consider a point P on the plane which is equally

    asked by abdul rahman
  143. chem

    From the following list, identify the ions that are more easily reduced than H+. Fe2+(aq) Al3+(aq) Cr3+(aq) Ag+(aq) Sn4+(aq)

    asked by sarah
  144. Solve the polynomial inequality

    Solve the polynomial inequality and graph the solution set on a real number line. Express the solution set in interval notation. x^3+x^2+4x+4

    asked by Jill
  145. life orientation

    three environmental health hazards that cause ill health,crises ,and disasters within your community or any other community within south africa and globally

    asked by zuko
  146. chemistry

    calculate the L of 5.00 M HCI required to neutralize 500.0 mL of 1.00 M Ca (OH)2

    asked by maria
  147. physics

    An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be

    asked by stuck
  148. PHYSICS - Waves

    Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test. Sound waves with a wavelength of 2.5 m are traveling 7.5 m/s. How many waves will pass a microphone in 10.0 s?

    asked by Diana
  149. PHYSICS - Waves

    Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test. If 3 sound waves pass a microphone in 4.0 s while traveling 5.0 m/s, what is the wavelength of the waves? (6.67 m)

    asked by Diana
  150. algebra

    factorise the left hand side of the equation xxx+7xx-21x-27=0 and the roots are

    asked by rinku
  151. math

    find p such that 3x^p(4x^2p+^3+2x^3p-2)=12x^12+6x^10

    asked by Anonymous
  152. Chemistry

    One cubic meter of ideal diatomic gas is expanded from 150oC, 8 bar isothermally to the final volume. The gas is then cooled at constant volume until 50oC and 3 bar. Calculate the total change in work, heat, enthalpy, and internal energy.

    asked by BASSS
  153. how many particles...?(Physics

    A person takes a breath as deep as possible by exhaling as far as possible (leaving a volume of 1.170 L in their lungs), and then slowly inhaling to increase their lung volume by 4.580 L. His body temperature is also 37.64 ¡ãC. (i)How many particles of

    asked by tommy
  154. Physics

    Please help! I've tried solving this with trig but I can't seem to figure out what I've been doing wrong. Two positive point charges, each of which has a charge of 2.3 × 10−9 C, are located at y = +0.60 m and y = −0.60 m. A)Find the magnitude of the

    asked by Alex
  155. Physical geography

    what is the fractional scale of oregon? and how do you figure it out. Thanks

    asked by reggie
  156. Chemistry

    When looking at a titration curve, I have to determine which is false and I have it narrowed down to two options: The initial starting point on the titration curve is where pH depends only on [HA]0 or The finial point on a titration curve the pH depends

    asked by ramire2
  157. Science 2 questions

    how and where is electricity generated in British Columbia, Canada? describe how most of the electricity is generated in England or another country. But it must be different than what occurs in B.C. Please help, thanks:)

    asked by Olly
  158. math(check my answers)

    SOLVE THE FOLLOWING EQAUTION BY COMPLETING THE SQUARE: 3. xsquared - 8x - 10 = 0 xsqaured -8x=10 xsquared-8x+(8/2)sqaured=10+(8/2)sqaured xsquared-8x+16=26 Answer: xsqaured-8x+16=26 WHAT DID I DO WRONG?

    asked by ki
  159. Statistics

    There is a mean of 30.23 lbs with a standard deviation of 13.84. Calculate the probability that randomly selected mother in North Carolina gained

    asked by Varonica b. Miller
  160. science

    describe the path of light rays from a leaf to the retina

    asked by Taylor
  161. maths - two dimensional motion

    The problem I am trying to solve is from AQA Mechanics M1 and is as follows: An object is moving in a plane. At time t=0, it is at the origin, O, and moving with velocity u. After 2 seconds it is at A where OA = -2i - 4j. After a further 3 seconds it is at

    asked by Maggie
  162. Calculus

    Find the equation of the line tangent to f(x) = xe^-x at the point where x = 0. What does this tell you about the behavior of the graph when x = 0?

    asked by Tima
  163. math

    3xsquared + 27 = 5 3xsquared -5x = -3xsquared + 6 SOLVE

    asked by katy
  164. Math

    Andrew has 12 coins, all dimes and nickels, and they add up to $1.00. How many nickels does he have?

    asked by Dave
  165. Pre algabra

    write 121 to 4 feet as a ratio in lowest terms

    asked by David
  166. precal

    write as single log -4ln(x+1) + 9ln(x)

    asked by lakyn
  167. math

    if two squares have the same area of 2500 meters squared,when combined what is the perimeter?

    asked by Anonymous
  168. math

    If the distance between location A to B is straight east 10 km. then from B to C is Nw 18KM How far would you be from point C to A. Would you not need to more information then this to calculate this answer?

    asked by Rose
  169. Calculus

    1. In a certain country, the percentage of the population relocating to a new town is given by the following function: p(t) = 20.6e^-0,009t,where 0 _< t _< 52. Time is zero (t = 0) corresponds to the year 1960. 1. Find the rate at which people relocated

    asked by Deeno
  170. math

    Larry and Shamir want to build identical houses. They bought a rectangular piece of land and divided it into two identical squares.Each square piece of land has a area of 2500 meter squared. What is the perimeter of the original rectangle?

    asked by Eugene
  171. Find the intercepts

    Find the intercepts and graph the equation. 3x+4y=12

    asked by Lauren
  172. physics

    waves in a lake are observed to be 5 cm in length and to pass an anchored boat .8 s apart. the speed of the wave is

    asked by Susan
  173. Algebra

    For the given functions f and g find the following and state the domain of each result f(x)=5x+1/4x-7; g(x) = 3x/4x-7

    asked by Kayleigh
  174. physics

    What is the acceleration if change in velocity is 1.2 m/s and the time interval of this change in velocity is 8.25 s? (Your answer will be in m/s^2)

    asked by Anonymous
  175. physics

    An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be

    asked by stuck
  176. 3rd grade mah

    mrs. rothenberg bought a bag of 6 pears for $5.40. what was the unit price per pear?

    asked by mythreyee
  177. physics

    a fish that you are looking at from a boat seems to be 20cm below the water surface. the actual depth of the fish is

    asked by Susan
  178. GRAMMAR

    WORD FORMATION.MY TEACHER GAVE ME A HOME WORK WITH STATES:FIND FIFTEEN WORDS ANS WRITE ITS ADVERB , VERB AND ADJECTIVE PLEASE GIVE ME A SITE WITH SOME OR HELP COME UP WITH SOME

    asked by Anonymous
  179. Engineering

    The power plant is to be operated in a region where the same company operates several other coal fired power plants that were all built in the 1960s. The new power plant is planned to have 500 MW energy generating capacity. The next largest plant is 50 MW

    asked by please help!!
  180. applied calculus

    1. Consider the function y = xx (for x> 0). a) Why does the derivative rule for xn not apply? b) Why does the derivative rule for ax not apply? c) What are the four magic properties of logarithms? d) Take the ln of both sides. Use the properties of

    asked by jack
  181. algebra 1

    why would you add or subtract equations that represents real-world situations

    asked by Anonymous
  182. applied calculus

    3. a) Write out the limit definition for the derivative of y = xx. Attempt to solve it. b) Write out the limit definition for the derivative of the inverse trig function from question 2. Attempt to solve it. c) Discuss the value of implicit

    asked by jack
  183. chemistry

    What would the boiling point be of 300 ml with 40 g CuCl2 dissolved in it?

    asked by Valerie
  184. math

    how do i find the surface area of a rectangular prsim

    asked by itsakid
  185. chemistry

    If 8.72 grams of oxalic acid, H2C2O4, a diprotic acid, is neutralized when 23.4 mL of a solution of KOH is added, what is the molarity of KOH? the topic is acid-base triation, and i have already converted the mass to moles,but I am having trouble finding

    asked by K
  186. Algebra

    Help please! Write the series in sigma notation. 1/4+1/2+3/4+1+5/4+3/2

    asked by Anonymous
  187. arrays and expanded algorithm

    91*64

    asked by Katavia
  188. Math

    Factorise fully: 5pq + 10p

    asked by Ella
  189. english

    Sam and John are building a new house in Florida. is it house or home?

    asked by daniel
  190. english

    Mrs. Jones said that we will have a fire drill at 8:45 on Thursday. I am confused is what she said in quotes and should the word that be taken out - the instructions says to correct sentence.

    asked by daniel
  191. 3rd grade math

    A hlaf dozen hair clip cost 43.90. maria wants to buy 4 hair clips. how much will she pay for them?

    asked by mythreyee
  192. physics

    An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be

    asked by stuck
  193. physics

    when the voltage across a resistor is v the power delivered is p. if the voltage if doubled to 2v, the power delieverd becomes

    asked by Susan
  194. Rbowh

    On the second problem r+11=19 r+11-_=19-_ r=_ Would it be R+11=30=19-11 R=8

    asked by Brooke
  195. maths-

    a man bought a certain number of toys for rs 180 and he broke two of them. Then he sold each of the rest for Rs.10 more than he had given for it and thereby he makes a profit for Rs 60. find the number of toys he initially bought

    asked by anoynomous
  196. 3rd grade math\

    A hlaf dozen hair clip cost 43.90. maria wants to buy 4 hair clips. how much will she pay for them?

    asked by mythreyee
  197. Math

    a cardbord gift-box has a surface area of 478cm2 and a volume of 570cm3. what are the length,width,and height of the carbox gift-box? I Need Help

    asked by Sofia
  198. matematicas

    ¿cual es el area de un terreno rectangular de 15.5 x 10.1m?

    asked by maria
  199. chemistry

    Calculate the mass of co2 produced when 2ch3oh mixed with o2. Given that 2ch3oh is 4o grams and o2 is 46 grams.

    asked by Ruusa
  200. physics

    In a modern art exhibit, a multicolors empty industrial wire spool is suspended from two light wires as shown. (Pic) The spool has a mass of 50 kg with an outer diamter of 75 cm and an inner exle diameter of 18 cm. One wire (#1) is attatched tangentially

    asked by Dem
  201. Calculus

    1. In a certain country, the percentage of the population relocating to a new town is given by the following function: p(t) = 20.6e^-0,009t,where 0 ¡Ü t ¡Ü 52. Time is zero (t = 0) corresponds to the year 1960. 1. Find the rate at which people

    asked by Wiz
  202. Physics

    Consider the LR circuit. We have R1=19 Ohms, R2=23 Ohms, R3=23 Ohms, V=14 Volts, L=0.09 H. L and R2 are connected in series, Combination of L and R2 in series is connected with R3 in parallel. This whole combination is connected in series with R1 and

    asked by abdul rahman
  203. language arts

    During the lecture at Florida state, the audience of scientist was curious about how the guest speaker would treat the topic of life on other planets Q : what is the meaning of the word treat at is used in the sentence? A : To pay another persons expenses

    asked by Diamond
  204. Area of triangles

    height is 12 inches area is 128 inches squared

    asked by Wyatt
  205. math help please

    solve the following quadratic equation and show steps 2z^4 +14z^3 + 20z^2

    asked by Anonymous
  206. Science

    Please please help this is the second time I have posted this question. Calculate the amount of work it will take to lift a lawn mower with a mass of 8kg onto the back of a truck which is 0.75m off the ground.show all conversions in your work.

    asked by Cherie
  207. Bus 599

    In what way does the phrase, "gross domestic product," seem to be a misnome

    asked by Anonymous
  208. mathematics

    a man bought a certain number of toys for rs 180 and he broke two of them. Then he sold each of the rest for Rs.10 more than he had given for it and thereby he makes a profit for Rs 60. find the number of toys he initially bought

    asked by anoynomous
  209. maths- urgent

    a) Forming the smallest six digit number with different digits. Reverse the number and add the sum of the two numbers. b)Forming the smallest five digit number with different digits. Reverse the number and add the sum of the two numbers.

    asked by anoynomous
  210. History

    What are some of the toughest hardships that emigrants faced along the oregon trail?

    asked by Anon
  211. third grade math

    how do i 2- fracture each third

    asked by ganaysia
  212. Chem 1

    Write a chemical equation that shows how acid rain H2SO3 was produced from SO2 gas and water in a zip sealed bag? My chem. teacher never explained how to do this and I have several other questions on this type of subject. If you could help me out it would

    asked by Jess
  213. writing

    I'm terrible at describing things. My prof wants me to give a visual/sensory description of this Child care center I wrote a profile story on... What's some advice on writing descriptive?

    asked by Blaze
  214. physics

    is there an effect on rotational inertia of a bar pendulum if extra mass is added to it .what happans if the added mass is located exactly at the orignal center of mass of the pendulum

    asked by naseer
  215. maths- rational no.

    find two irrational numbers between 2.5 and 4.5

    asked by anoynomous
  216. Chemistry

    I have no idea where to even start with this. It seems like it should be simple, but I have no clue. The question is... "In serum, about 55% of total serum calcium is bound. The measurement of ionized (free) calcium with an ISE is 1.10 mM. What is an

    asked by Maranda
  217. Tourism Industry

    Which of the following is a key tourism management challenge caused by the seasonality of demand, but greatly impacting service quality? A. revenue share B. loyalty systems C. access restrictions D. condo rating systems E. human resource scheduling

    asked by Sarah
  218. Engineering

    The power plant is to be operated in a region where the same company operates several other coal fired power plants that were all built in the 1960s. The new power plant is planned to have 500 MW energy generating capacity. The next largest plant is 50 MW

    asked by please help!!
  219. Clinical Chemistry

    Why is slightly higher serum sodium consistently found by evaluation by ion-selective electrode (ISE) as compared to flame photometry?

    asked by Kelley
  220. chemistry

    Calculate the mass of co2 produced when 2ch3oh mixed with o2. Given that 2ch3oh is 4o grams and o2 is 46 grams.

    asked by Ruusa
  221. 6th grade math

    How to figure if 60 cookies were baked and 7/12 were given away, how many are left?

    asked by zach
  222. math

    Asia is about 3 times the size of antarctica together the 2 continents make up 2/5 of earth's land . what fraction of earth's land does antarctica make up?

    asked by esha
  223. Calculus,math

    Constuct a rectangular box with a square base that holds a given volume V0 cm^3.? The cost of the material for the sides is 1 cent per cm^2, while the top and bottom costs 3 cents per cm^2. Find, in terms of V0, the dimensions of the box that will minimize

    asked by Joegav
  224. language arts

    " Never one to give up, Margo worked Tenaciously to land a part on Prancing with the stars, and her tireless efforts finally paid off". Q : What Is the meaning of the word tenaciously as is used in the sentence? A : Hesitantly B : curiously C : lazily D :

    asked by Diamond
  225. math

    Which of the following gives a set of numbers that are all solutions of the inequality x + 6 < 9 ? a. { -10, -7, -2, -1 } b. { -6, -3, 0, 3 } c. { -5, -1, 3, 6 } d. { 4,7, 10, 16 }

    asked by peter
  226. physics

    Consider a circuit with an RL series with L=0.09 H and R=0.05 Ohm. At t=0 the circuit is connected to a battery which provides V0=12 V. (a)How long does it take to the current to equal a fraction 0.95 of the steady state current? (b) What is the energy

    asked by abdul rahman
  227. Algebra 2

    Solve -2(3x+2y-3)>12

    asked by anonymous
  228. science

    Do temperatures get warmer or colder as you move from the lower stratosphere to the top of that layer?.And how big is the change?.

    asked by dinh
  229. physics

    How much heat is lost in one hour through a 0.15 m × 3.7 m × 6.1 m concrete floor if the inside temperature is 22.0 °C and the ground temperature is 13.0 °C?

    asked by Patrick Molitor
  230. math

    Anyone know what 1/2 is in simplest form??

    asked by katie
  231. PHI

    Is racism and anti-Semitism still a problem in the United States

    asked by LaWanda
  232. math

    4xsquared+ 4x -3 =0 SOLVE

    asked by katie
  233. 3rd grade math

    a package of 4 button costs $1.30. how much will 4 package cost?

    asked by mythreyee
  234. Math

    Factor this polynomial a^5b-a

    asked by T-perry
  235. psychology

    A behaviorist is asked to evaluate five students in the second grade who exhibit impulse control problems. The behaviorist decides it is best initially to study them in the classroom without interfering with the behavior. This behaviorist is conducting

    asked by Anonymous
  236. life orintation

    In 10-15 lines critically discuss 5 ways in which human or environmental problem on the community(water pollution)

    asked by lisa
  237. Math

    One side of a square frame measures 12 inches. What is the perimeter of the frame? Is this right 12*4=48 Perimeter =48

    asked by Gio
  238. Math

    What is the mean number of votes for the snow cone flavors? Cherry 40 Strawberry 7- Grape 30 Lime 20 Rainbow 40 A.180 B.36 C.40 D.18 C The range of a set of numbers is 52. The number with the greatest value in the set is 248. What is the number with the

    asked by Jerald
  239. math

    What are the intersection points of y = 1/x and y = 1/x^2? Is it x = 0 and x = 1? Thank You

    asked by Sam
  240. math

    is there a value for x that makes the statement true, if so find x. explain(x+2)^2=x^2+2^2

    asked by Anonymous
  241. language arts

    No One ever thought the Lake Land DreadNaughts would beat the Tampa Sickles . So when it finally happened , the Dreadnaughts Fans were euphoric. Q : Wich of these is the closest in meaning to euphoric as is used in the sentence ? A : embarrassed B :

    asked by Diamond
  242. physics

    what law is it when gravity pushes down on a rocket that is accelerating at a rate of 270 km/h

    asked by Anonymous
  243. Calculus

    1. In a certain country, the percentage of the population relocating to a new town is given by the following function: p(t) = 20.6e^-0,009t,where 0 ¡Ü t ¡Ü 52. Time is zero (t = 0) corresponds to the year 1960. 1. Find the rate at which people

    asked by Wiz
  244. math

    All varieties of a certain brand of cookies are $3.50 A person buys peanut butter and chocolate chip cookies. Write an expression that tepresents the total cost.

    asked by Chris
  245. physics

    It takes 222 kJ of work to accelerate a car from 22.1 m/s to 29.9 m/s. What is the car's mass?

    asked by Anonymous
  246. language arts

    During the lecture at Florida state, the audience of scientist was curious about how the guest speaker would treat the topic of life on other planets Q : what is the meaning of the word treat at is used in the sentence? A : To pay another persons expenses

    asked by Diamond
  247. language arts

    During the lecture at Florida state, the audience of scientist was curious about how the guest speaker would treat the topic of life on other planets Q : what is the meaning of the word treat at is used in the sentence? A : To pay another persons expenses

    asked by Diamond
  248. History

    Why did people move west in the 1800s?

    asked by Anon
  249. area of triangle

    the base of a triangle is 9 cm the area is 18 cm squared what is the height?

    asked by Wyatt
  250. math

    where is surface area and volume of rectangular prism used in real-life

    asked by S.S
  251. math

    i need to find an equation for (7,1)

    asked by lamika
  252. maths

    prove that: 1/1+x^b-a + x^c-a + 1/1+x^a-b +x^a-c = 1

    asked by tuhituhi
  253. English

    e.g. I missed the history exam. What should I do? (What does that mean? Did "I" not take the test by mistake or on purpose? What did "I" do?)

    asked by rfvv
  254. math

    1. 2xsquared-7x=-6 2. xsquared + 12x + 1= 0 3. xsquared + 6x + 20 = 0

    asked by robert
  255. tourism industry

    Governments invest in many different industries, including the tourism industry. As a result, economic impact studies are conducted to assess the ______________ of this government spending. A. TFC B. TSA C. MUI D. ROI E. TEI

    asked by Sarah
  256. Clinical Chemistry

    I have 2 questions relating to clinical chemistry... 1st: I have no idea where to even start with this. It seems like it should be simple, but I have no clue. The question is... "In serum, about 55% of total serum calcium is bound. The measurement of

    asked by Jesse
  257. Chemistry

    Between Mg and Zn which one is the anode and which one is the cathode? And between Mg and Fe which one is the anode and which one is the cathode? Please help!!

    asked by shyanne
  258. maths-

    A and B are two different values of C lying between 0 and 360 which satisfy the equation (p cosC + q sinC=r) then prove that cos(A+B)=(p^2- q^2)/(p^2+ q^2)

    asked by anoynomous
  259. computer programming

    how do I figure out the math problem for Excel 2010?

    asked by joni
  260. Math

    If Kelly gave 1/3 of a pizza to Holly and 1/5 to Diane how much did she have left?

    asked by Melissa
  261. applied calculus

    Let y=〖tan〗^(-1) x Rewrite it as an equation involving a trig function. Use implicit differentiation to determine an expression for y.

    asked by jack
  262. childhood edu

    One of Rudolph Dreikur's contributions to the field of early childhood education is his belief that? A. All behavior is goal directed. B.There's a difference between behavior and misbehavior I think it's A,am I correct

    asked by sara
  263. PHYSICS - Waves

    Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test. It takes 2.30 s for an echo to come back from a sound wave sent to the bottom of a 25 degree C lake. How deep is the

    asked by Diana
  264. chemistry

    What would the boiling point be of 300 ml with 40 g CuCl2 dissolved in it?

    asked by Valerie
  265. Chemistry

    What mass of silver can be produced by reacting 0.300 L of 0.100 M AgNO3 with an excess of Mg?

    asked by Jeff
  266. Math

    The output values in a function table are 11, 17, and 23. The rule for the table is output=3m-4. What are the input values ...

    asked by Anonymous
  267. math

    julia picked 2 cards from a face down stack of cards containing 4 hearts 4 diamonds 4 clubs and 4 spades. Make a treediagram to find all the possible combinations for the 2 cards Julia picked

    asked by tina
  268. math

    if two squares have the same area of 2500 meters squared,when combined what is the perimeter?

    asked by matt
  269. math

    The problem I am trying to solve is from AQA Mechanics M1 and is as follows: An object is moving in a plane. At time t=0, it is at the origin, O, and moving with velocity u. After 2 seconds it is at A where OA = -2i - 4j. After a further 3 seconds it is at

    asked by Maggie
  270. math

    make a setof 15 numbers with landmarks. max152 range 25 mode 139 median 142

    asked by Malik
  271. maths

    if x=2^1/3 + 2^2/3 show that x^3-6x =6

    asked by tuhituhi
  272. Math

    Bill earns 1 dime the first day, 2 dimes the second day, 3 dimes the third day, 4 dimes the fourth day, etc. How many days will it take him to earn $2.

    asked by Reece
  273. math

    Bob and Jim had a total of 90 marbles. Bob had half a dozen more than Jim. How many marbles did Jim have?

    asked by reid
  274. Clinical Chemistry

    This one seems like an easy question but I don't know where to start. Please help! In serum, about 55% of total serum calcium is bound. The measurement of ionized (free) calcium with an ISE is 1.10 mM. What is an estimate of the total calcium in this

    asked by Cosette
  275. Air pollution Engineering

    The power plant is to be operated in a region where the same company operates several other coal fired power plants that were all built in the 1960s. The new power plant is planned to have 500 MW energy generating capacity. The next largest plant is 50 MW

    asked by hariram1111
  276. Math ( Number Theory )

    How many numbers from 1 to 1000 inclusive can be expressed as the sum of k >= 2 consecutive positive integers for some value of k ? Sorry to post question from Brilliant, I got 997 integers, but it's wrong. If you think you can answer ...

    asked by Lucy
  277. Math

    I am in third grade and have a word problem that I don't understand. There is a picture of a retangular window with 12 little squares inside divided by wood. The question is how many feet of lights would be needed to hang around five windows like this one.

    asked by Deborah
  278. Algebra

    factor -2w / w(w+4)

    asked by Please Help - Megan
  279. lA

    the havasupai are ararian; they live off the summer crops they grow in the valley. .. .. what is the meaning of the word agrariam as is used in the sentence? A. farming the land to survive b . hunting south of the canyon c . herding animals such as deer d

    asked by Annie
  280. Algebra

    Soymeal is 12% protein; cornmael is 6% protein. How many pounds of each should be mixed together in order to get 240lb mixture that us 9% protein

    asked by Anonymous
  281. math

    The total hours allotted for writing and oral competition is 2 three fifth hours. The writing competition is allotted 1 hour and five sixth. How many hours are allotted for the oral competition

    asked by Anonymous
  282. chemistry

    What would the boiling point be of 300 ml with 40 g CuCl2 dissolved in it?

    asked by Valerie
  283. computer

    the meaning of this words • FOR- • DO - • SELECT- • MID$- • ASC- • SQR- • LEN- • LEFT$- • TIME$- • INT-

    asked by jolomi
  284. Math

    Tim practiced batting at a batting cage. For 25 cdnts he got 10 pitches . How many pitches did he get for 1.25?

    asked by Zoraida
  285. Math

    I am really confused.i don't understand.please help me figure this out W-8=26 W-8+_=26+_ W=_

    asked by Brooke
  286. science

    explain the priniciples of light thaat enable the convex lens to function as it does

    asked by Taylor
  287. Writing

    for this profile story i'm doing one of my sentences was Originally from central Indiana, Gilbert did not grow up in a diverse neighborhood, nor did she attend a diverse school system. My teacher told me to elaborate on when I say diverse.. Is this better?

    asked by Blaze
  288. Math

    1 1/8 in. = how many miles?

    asked by T. Reed
  289. math

    The platform is 1 foot by 4 feet by 6 feet. What ha the surface area of the platform?

    asked by stacy
  290. math

    xsquared + 8x- 10 =1

    asked by katy
  291. math

    What is 2:1 and 1:2 in simplest form?

    asked by katie
  292. math

    height = 15 ft area = 285 ft2

    asked by Wyatt
  293. math

    i need to find an equation for (7,1)

    asked by lamika
  294. Math

    R+11=19 r+11-_=19-_ r=_

    asked by Brooke
  295. To rbowh

    Was 34 right?

    asked by Brooke
  296. To rbowh

    I don't understand how w-8+8=26+8.wouldn't the first blank be 0?

    asked by Brooke
  297. Math

    W-8=26 w-8+_=28+_. W=

    asked by Brooke
  298. math (Reiny please)

    how would i do these problems: 6. xsquared + 2x -7 =0 7. 6xsquared - 2x -1 = 0

    asked by kathy
  299. maths

    if 3^x = 5^y = 75^z show that z= xy/2x +y

    asked by tuhituhi