Questions Asked on
December 11, 2015

  1. Physichs

    Two metal disks, one with radius R1 = 2.40 cm and mass M1 = 0.900 kg and the other with radius R2 = 4.95 cm and mass M2 = 1.50 kg , are welded together and mounted on a frictionless axis through their common center. A light string is wrapped around the

    asked by 121
  2. Language Arts

    1. Which sentence contains an opinion? (1 point) Thomas Jefferson supported American independence from Great Britain. He was a lawyer in his home state of Virginia. Jefferson authored the Declaration of Independence, the most important document in

    asked by Alex
  3. history

    The last part of the Declaration of Independence contains a list of complaints the colonists had against King George. Which of the following best describes an economic complaint the colonists had toward the king? A)He cut off trade. B)He took away colonial

    asked by Anon
  4. Math

    A single fair die is tossed find the probability of rolling a number different than 12. Please help me.

    asked by Roa
  5. History

    1.)Which of the following represents the civic virtue of diversity? Being open to the opinions of others Seeking honesty in oneself Arguing a point based on fact Focusing on individual rights A? 2.)What was the goal of the Alien and Sedition Acts? To stop

    asked by YRN DJ
  6. Math

    A system of equations is shown below: x + y = 3 2x − y = 6 The x-coordinate of the solution to this system of equations is _____. I'm thinking it could be X=3

    asked by Student
  7. Math

    10. What is 0.00000512 in scientific notation? The answer is 5.12 x 10 -6 but I have to explain why and idk? :(

    asked by Alana
  8. gammar

    True/False. Determine if the following sentences employ the correct use of commas and apostrophes. Choose true if the sentence is punctuated correctly or false if it is punctuated incorrectly The infant’s first dextrose stick after delivery was 23;

    asked by kerston
  9. Math

    A children's play area is triangular. The sides of the play area measure 100 m 250 m and 275 m respectively. Find the area

    asked by Giuseppe
  10. hbi pact for adults

    There are 106-8d common nails in one pound. How many are in 50 pound box

    asked by wannetta
  11. Math

    Heather drove 715 miles in 13 hours. At the same rate, how long would it take her to drive 495 miles?

    asked by SSundee
  12. Math TRUE or FALSE Help

    You do not need to flip the inequality sign when solving the inequality -3t + 7 ≥ 9. TRUE or FALSE? I'm not that great at knowing when to flip inequality signs... Can someone help me ASAP? Thank you for your assistance in advance. Nic

    asked by Natasha
  13. Physics

    A uniform rod is 4m long and weighs 10 kg.if it is supported on a knife edge at one metre from the end what weight placed at that end keeps the rod horizontal?

    asked by priya
  14. math

    Given the equation of a closed curve is x^2-2x+4y^2+16y+1=0.Find the coordinates of the two points where the lines tangent to the curve are vertical.

    asked by CC
  15. Math

    If a 14-ft ladder leans against a building, with an angle of elevation of 70°, how far up the building will the ladder reach? I believe this requires law of cosines but otherwise I am lost.

    asked by Nick
  16. FUW

    Chlorine is prepare by the reaction 2KmnO4 + 16Hcl 2Kcl + 2mncl2 + 5cl2 + 8H2O what mass of KmnO4 is required to prepare 500cm3 of chlorine gas at 73mmHg pressure at 25oC?

    asked by Julius Isaac Awudu
  17. Geometry

    1. In an isosceles triangle that is not equilateral the angle between the congruent sides is called a ____ A> Leg B> Vertex C> Base D> Corollary

    asked by Chase
  18. Chemistry

    At its normal boiling point of 126°C n-octane, C8H18, has a vapor pressure of 760 torr. What is its vapor pressure at 25°C? the enthalpy of vaporization of n-octane is 39.07 kj/mol.

    asked by Nicole
  19. math

    Alexandra correctly answered 90% of the questions on a math test. If she missed 4 questions, how many questions were on the test?

    asked by warda
  20. statistics

    Directional and nondirectional hypotheses can be easily interchanged according to the hypothesis the researcher is testing. For instance, a drug company might predict that a drug will help a subject lose weight while another drug company might predict that

    asked by tanisha
  21. math written assignment help

    A’s DJ service charges a $200 setup fee and $75 an hour after that. B’s DJ service charges no setup fee but costs $125 an hour. (4 points) Set up equations for both of the services using x and y. Determine the variables and provide an explanation for

    asked by kate
  22. state

    A machine put the juice in the bottle with normal distribution with mean is equal to 50 cl, with the standard deviation 5 cl. Test was done to see if the claim is right. A sample of 100 bottles were tested. They got the average content of 48.9 cl. At ∝

    asked by iram
  23. physics

    A runner of mass m = 58 kg and running at 2 m/s runs as shown and jumps on the rim of a playground merry-go-round which has a moment of inertia of 408 kg·m2 and a radius of 2 meters. Assuming the merry-go-round is initially at rest, what is its final

    asked by Anonymous
  24. Chemistry

    If you reacted 100.0 g of carbon tetrachloride (CCl4) with excess antimony fluoride (SbF3), how many grams of carbon dichloride difluoride would be produced?

    asked by Catherine
  25. gRammar

    Proofread the following sentences. Insert punctuation as required. After a Maylard incision was made through the abdomen a retractor was used for visualization of the pelvic contents.

    asked by Anonymous
  26. Chemistry

    Suppose we had mixed 52.37 mL of 1.00 M HI solution with 25.42 mL of 1.00 M KOH solution, and measured a heat of reaction of -1.52 kJ. What is ΔH for this reaction, in kJ? Assume that all solutions have the same density as water (1.00 g/mL).

    asked by Will
  27. Math

    If someone could help me with these 6 questions, that would be great, Thank you. :) 5.) Chris wants to buy a cell phone that costs $215.00. His parents say Chris must raise 35% of the money himself. How much money much Chris raise? A.$705.00 B.$75.25

    asked by Todd Thicket
  28. Math, Algebra II

    Help would be great, it is for a "test" to see what we know, so it is not worth anything but I still would like to see if I can make changes to it before I submit it. :D 3.) Select the equation that has infinitely many real solutions. (these are all

    asked by Ronald
  29. Math:Finance

    What amount must be remitted if the following invoices, all with terms 4/10, 2/30, n/60, are paid on May 10? $850 less 20%, 10% dated March 21 $960 less 30%, 16 2/3% dated April 10 $1040 less 33 1/3%, 25%, 5% dated April 30

    asked by Mike
  30. ELA

    Determine the ideas that would be most worthy to share in a literary discussion about The Watsons Go to Birmingham-1963. Provide an explanation for your choices. How did the role you selected and the work you completed help you to understand more about the

    asked by Peyton
  31. Math

    You have 8 liters of a 60% alcohol solution. How many liters of water should be added to make a 35% alcohol solution?.

    asked by Help Please!
  32. Math

    A number, plus one third itself, plus one eighth of itself, equals 70. What is the number?

    asked by Emily
  33. Math

    Find all values of 𝑐, so that the solutions of the following equation are real numbers 2x2 − 4𝑥 + 𝑐 = 0

    asked by Help Please!
  34. Chemistry

    Rank the following in order of increasing vapor pressure at 298 k: CH3CH2OH, CH3OCH3, CH3CH2CH3.

    asked by Nicole
  35. Algreba

    What is the simplified form of the expression? (2x^6)(3x^1/2) A.6x^13/2 B.6x^3 C.5x^13/2 D.5x^3 I got the answer 3x^7 but that's not one of the answer choices and I'm really lost.

    asked by Jasmine
  36. Calulus

    Fundamental Theorem of Calculus 1. (4e^x-3)dx plus the number in x (6,1)

    asked by Daniel
  37. science + check over

    please check my answers + help me improve them. * 1.) explain why earth & other planets were not solid when they formed during the beginning of the precambrian, approximately 4,600 million years ago + what was this particular time period called & why is

    asked by abx +
  38. Math

    Sample size= 16 mean=3.48 and standard deviation=0.92. For a 99% confidence interval, what is the Margin Of Error

    asked by Knight
  39. Chemistery

    consider the reaction N2O5 + h2o -> 2HNO3 how many moles of N2O5 must be dissolved into one more of H2O to obtain an aqueous solution of HNO3 in which the mole fraction of HNO3 is 0.5

    asked by PInk ROSEE
  40. Math

    Results for: Rumpelstiltskin Could Pronounce His Name In Six Tenths Of A What Rate, How Many Times Could He Pronounce His Name In 15 Seconds?

    asked by Asiyah
  41. Math

    Rumpelstiltskin Could Pronounce His Name In Six Tenths Of A What Rate, How Many Times Could He Pronounce His Name In 15 Seconds?

    asked by Asiyah
  42. Math

    wahts 10 gallons of gas at the price of $1.599 per gallon?

    asked by Asiyah
  43. Physics

    Salt water is poured into a U tube until it stands 0.250 m high in each arm. Oil is then added slowly to one arm until the salt water in the other arm stands 0.300 m high. The free surface of the oil then stands at 0.321 m high. (the weight density of the

    asked by Jon
  44. math

    Assume you are throwing a baseball up from the top of a building. The equation for the height of the ball, h, at time, t, is represented by the equation: h=-16t^2+64t+512 (5 points) After how many seconds does the ball reach 560 feet? Explain what your

    asked by kate
  45. Math

    lim (6x+1)/(|6-2x|) as x->infinity is what number? I thought it was 0, but answer key says 3. How?

    asked by Kenny
  46. math

    two airplanes travelling in opposite directions , leave an airport at the same time. if one plane averages 480 ml/hr and the other averages 520 ml/hr, how long will it take before they are 2000 ml apart?

    asked by jj
  47. Math

    Find the right end behaviour of x^3- e^(-x). The answer choices are -x^3, x^3, -e^-x, e^-x, e^x.

    asked by Bella
  48. Math

    piece wise function{y=x^2-2, x=1. find slope of tangent at x=1 of piece wise function. So is it 2, 1.5, or no tangent? I am confused by the 2 graphs(piecewise). Thanks

    asked by Kenny
  49. Physics

    A woman holds a 1.90-m-long uniform 5.0-kg pole as shown in (Figure 1) ( its horizontal). A. Determine the force she must exert on the pole at A. Express your answer to two significant figures and include the appropriate units. Enter positive value if the

    asked by Natalie
  50. Mathematics

    Solve: 3^x=7 3^2x+1=12 4^x-6=2^3x

    asked by James
  51. Finance

    Mooncorp Insurance has quoted you an annual premium to insure your car of $3100. You are offered a 15% discount if you pay the lump sum immediately. They also offer an alternative payment method. You can pay the account in full by making 12 equal beginning

    asked by Raila
  52. Maths

    There were a some men, women , children in a hall.there 1 1/4 times as many men as women,and the ratio of number of women to the number of children is 8:5.when 105 more children entered the hall, the ratio of men to the children changes to 3:2. find the

    asked by Mullai
  53. pobability

    Suppose that 16% of the CD's that are distributed are defective. If you choose 5 CD's randomly, what is the probability that at least 1 of them is defective?

    asked by Sarah
  54. probability

    Grace has flipped a coin 500 times and each time is has come up tails. If she flips the coin 500 more times, how many tails should she expect? Why?

    asked by Hillary
  55. probability

    Mike Vanderjagt is the most accurate kicker in the history of professional football. He makes 91.2% of his field goal attempts. What is the probability that he will miss at most 1 out of the next 4?

    asked by Anonymous
  56. maths

    The angle of elevation and angle of depression of the top and base of a mobile tower from a mobile handset are 60 degree and 30 degree respectively. If the distances of the top and the base of the tower from the mobile handset are 15m and 8m respectively,

    asked by keya
  57. maths (trigonometry)

    The angle of elevation and angle of depression of the top and base of a mobile tower from a mobile handset are 60 degree and 30 degree respectively. If the distances of the top and the base of the tower from the mobile handset are 15m and 8m respectively,

    asked by keya
  58. Health

    Which of the following is a controllable risk factor of acquiring a non-communicable disease?

    asked by Sinistare Stewie

    If you were creating a lamp by hand what type of material would you chose for the wiring and what material would you chose to coat the wiring? Why?

    asked by JENE
  60. Physics grade 11-

    A car traveling at 72 km/hr hits a tree. the driver, who has a mass of 55.0 kg comes to a rest 0.10s after the impact. What is the force that acts on the driver?

    asked by Maddie
  61. english

    Which sentence is correct? a.Each guitar must be in their own case. b.Each guitar must be in its own case.****** c.Each guitar must be in his or her own case. ******-answer

    asked by Scott
  62. science

    A cattleman has installed a new electric fence. The cows keep escaping because they are not deterred by the low power they experience when touching the fence. There are two dials on his controls. Would you tell him to change the amperage or voltage?

    asked by JENE
  63. Spanish

    Answer. Use a possessive adjective in your answer. Tus padres tienen un carro. ¿Es viejo o nuevo el carro de tus padres?

    asked by Naomi
  64. probability

    On a typical scantron exam, there are 4 choices for each problem (a, b, c, or d). If you are given an exam with 6 problems and you guessed randomly, what is them probability of getting at least half the problems right?

    asked by Anonymous
  65. Health

    This type of auto-immune disease occurs when the immune system attacks the layer of insulation that surrounds the nerves and slows nerve impulses. A. asthma B. allergies C. multiple sclerosis D. rheumatoid arthritis

    asked by Sinistare Stewie
  66. gammar

    There were separate instructions for the (mens', men's) examination.

    asked by kerston
  67. intro to algebra written assignment help

    Assume you are throwing a baseball up from the top of a building. The equation for the height of the ball, h, at time, t, is represented by the equation: h=-16t^2+64t+512 (5 points) After how many seconds does the ball reach 560 feet? Explain what your

    asked by kate
  68. gammar

    The (doctors', doctors) conclusions were very similar to one another.

    asked by kerston
  69. Chakote school solapur

    if three resistors are connected in parallel there are 10 ohm 20 ohm and 60 ohm to a battery of 12 volt then find the effective resistance ?

    asked by Bhharti
  70. English

    1. Each woman is carrying her own bag. 2. Each woman has her own bag. 3. Each woman is moving her own back (to a place). ============== Does #1 mean #2 or #3? The expression 'is carrying' represent 'the state.' Am I right? Action of State?

    asked by rfvv
  71. World Geography

    Employment opportunities for more than five hundred people will be lost when New Development Solutions, Inc., closes its headquarters in the city of Nowhere, USA.

    asked by KeSean
  72. Ap physics 1

    The mass of a star in a galaxy far, far away, is 3.12 × 105 Earth masses, and the mean distance from the center of this star to the center of a planet with the same mass as our Earth is 2.46 × 108 km. Treating this planet and star as particles,with each

    asked by Jonathan
  73. English

    A:Sarah, have you had bibimbap before? B:No, I haven't. A: How about bulgogi? B:___________________ 1. I haven't had it, either. 2. Neither have I. 3. Nor have I. 4. Me, neither. =================== Can we use the expressions for the blank? Do you have

    asked by rfvv
  74. Gr. 8 Math- angles

    Kendra has recently purchased a 27-inch flat screen television. If the width of the screen is 22 inches, then what is the height of the television? Round to one decimal place.

    asked by Sinead
  75. probability

    In the game of blackjack, the player automatically wins if his two cards add up to 21 points. If you assume an Ace is worth 11 points, and the Jacks, Queens, Kings, as well as 10's are all worth 10 points; what is the probability that you get a 21 when you

    asked by Anonymous
  76. Math

    solve the exponential function for x by using common logarithms. 5^x=50^x+1

    asked by Help Please!
  77. Physics

    If I use 1.013x10^5 instead of given it wrong?

    asked by Shah talal
  78. economics

    Suppose three neighbors must vote on installation of a traffic light that costs $210. All three will share the cost of the light – that is, each person will contribute $70 to the installation. Leona values the light at $50; Lionel values the light at

    asked by Matt

    A marble with a mass of 0.5 kg is moving to the right at 1.25 m/s and a second marble with a mass of 0.35 kg is moving to the left at 2.15 m/s. If they collide head on and the collision is elastic find the final velocities of the two marbles

    asked by DAVID
  80. gammar

    I.True/False. Determine if the following sentences employ the correct use of commas and apostrophes. Choose true if the sentence is punctuated correctly or false if it is punctuated incorrectly. The patient’s first visit, to the office, was for lower

    asked by Anonymous
  81. algebra

    Jess ate 1/4 of a pizza.Jack ate 1/3 of the same pizza.Dennis ate 1/2 of the same pizza.Explain and show with math if this is possible?

    asked by Esau
  82. English

    1. If you do it at all, do it well. (What is the meaning of 'at all' here?) 2. Do you believe it at all? (What is the meaning of 'at all' here?) 3. I don't know him at all. (What is the meaning of 'at all' here?)

    asked by rfvv
  83. Physics

    You have a boat that is capable of moving at 10.4 m/s through still water. You wish to cross a river that flows due west at 2.8 m/s. At what numerical compass heading must you pilot your boat so that you will reach a destination that is due south of your

    asked by Cynthia
  84. math

    Chip and Arlene have 60 shares of stock between the two of them. If you double the number arlene has and halve the number chip has, then they ahve the same number of shares. How many shares does charlene have?

    asked by Tria
  85. Math

    The Japanese yen corresponds to the american dollar. If the exchange rate is 150 Yen for 1 Dollar, then A japanese car sold in america for $10,000 will bring in 1,500,000 yen. If the exchange rate changes to 120 yen for each dollar, then what price in

    asked by Robert
  86. math

    The property taxes on a business office were $3000. What was the tax rate if the business office was valued at $200,000?

    asked by sierra
  87. gRammar

    Proofreading. Proofread the following sentences. Insert punctuation as required. The x-rays revealed: an articular fracture of the tibia, a butterfly fracture of the fibula, and a longitudinal fracture of the femur.

    asked by Anonymous
  88. Physics

    mass of 4.00 kg rests on a rough horizontal table. The coefficient of static friction between the block and the table is 0.54. The block is attached to a hanging mass by a string that goes over a smooth pulley, as shown in the diagram. Determine the

    asked by Anonymous
  89. Chemistry

    how many milliliters of a 2.61 m h2so4 solution are needed to neutralize 71.50 ml of a 0.855 m koh solution

    asked by Anonymous
  90. Chemistry

    how many milliliters of a 2.61 m h2so4 solution are needed to neutralize 71.50 ml of a 0.855 m koh solution

    asked by Patty
  91. physics

    A Student jumps off a diving board that is 6.7 meters above the ground. As a student falls down what happens to the Potential energy, Kinetic energy, and the Total Mechanical energy.

    asked by ayleen
  92. blair

    For history class, I have to pretend to be a canadian soldier writing a letter home during ww2. However, I am experiencing writer's block and would appreciate if any of you had any creative ideas I could focus on in my letter.

    asked by evie
  93. science

    which of the following is the function of live

    asked by betty
  94. Physics

    An aeroplane is heading north at a speed of 300km/h . If wind begins blowing at a speed of 50km/h from the west , calculate the magnitude of the velocity of the aeroplane relative to ground?

    asked by Ranya
  95. calculus

    Anti-Derivatives 2x^6-x^3/x^2

    asked by Jason
  96. Math

    The base of a triangle is three inches more than its height. If each is increased by 3 inches the area of the triangle (1/2 bh) is 14 square inches. Find the original base (𝑏) and the original height (ℎ) in inches. (Lesson 15)

    asked by Help Please!
  97. Pre Algebra

    -Scale you will need to use _______________________ | Height:3 |6 | 8 |10 | |Burn time:45|80|120|150| |_______________________| The candle company wants a candle that will burn for the equivalent of 3 full days. Assuming the pattern continues, how tall

    asked by Austin
  98. Calculus

    As an ice cube melts its surface area in decreasing at a rate of 6 cm^2 / sec. Find the rate at which the length of each side is decreasing at the moment when each side has length 2 cm.

    asked by Daniel
  99. Math

    A woman rows a boat 1.75 miles upstream against a constant current in 35 minutes. She then rows the same distance downstream (with the same current) in 15 minutes. What is the rate of the current?

    asked by Help Please!
  100. Calulus

    You have 300 square feet of wood you will use to construct a rectangular shed with a square base and top. What is the maximum volume of your shed? Optimization Question

    asked by Daniel
  101. Algebra 1

    I'm currently working on a project for algebra in which we have to study two cab companies and their flat fees/how much they charge per mile. One of the taxi services has a flat fee of $4.25, with an added $0.50 for every mile driven. The question I need

    asked by anon
  102. Calulus

    Consider the function y = 2x^3-3x^2+9x+5. 1. Find where the function is increasing, where the function is decreasing, and calculate all relative extrema (local max and local min) 2. Find where the function is concave up, where the function is concave down,

    asked by Daniel
  103. English

    In the presidential election of 1860, Lincoln received 180 out of a possible 303 electoral votes. In the election of 1864, he received 212 out of a possible 233 electoral votes. (The number of possible votes declined because in the second election, only

    asked by Kayla