Questions Asked on
July 5, 2017

  1. Maths

    Cos^4(θ)/cos^2(α) + sin^4(θ)/ sin^2(α)=1 Prove that cos^4 alpha/cos^ thetha + sin^4alpha/ sin^2thetha= 1

    asked by Sanjay
  2. Math

    Frank bought supplies for school. In the first store, he spent half of his money plus $10. In the second store, he spent half of what he had left, plus $10. In the third store, he spent 80% of what he had left. He came home with $5. How much did he start

    asked by Alice
  3. English

    1. [(Yoga) The Tree Pose] Try to hold it for 30 seconds. Repeat this with your left foot. 2. [(Yoga) The Tree Pose] Try to hold it for 30 seconds. Do this with your left foot. -------------------------------------- #1 is correct one. One used 'Do' instead

    asked by rfvv
  4. biological science

    please discuss physiologically the importance of human tissues

    asked by gail
  5. Maths

    In addition to spanning a river which is 50 metres wide, a straight bridge also has considerable overlap of both banks of the river. One third of the bridge overlaps one bank and one half overlaps the other bank. The total length,in metres, of this bridge

    asked by jacob
  6. English

    Do you know the website where we can get questions and answers in English about many kinds of subjects for elementary school students?

    asked by rfvv
  7. maths

    Between 1200 and 1300 3 in the tens place Even Numbr One digit is repeated

    asked by shamil
  8. math

    A= (x/7

    asked by ash
  9. algebra

    The fifth term of an A.P exceeds twice the second term by 1.The tenth term exceeds twice the fourth term by 3. Find:1.the first term. 2.the common difference. 3.the sum of first twenty five terms.

    asked by Raj
  10. Math

    If m < 2= 95° and m

    asked by Anonymous
  11. STATISTIC MECHANICS

    An insulated beaker with negligible mass contains 0.250 kg of water at a temperatur 75.0°C.e of How many kilograms of ice at a temperature of -20.0°C must be dropped into the water to make the final temperature of the system 40.0°C?

    asked by arlyn
  12. maths

    Two angles are adjacent and form an angle of 150degree. The larger angle is 30 degree more than twice the smaller angle.find the angles

    asked by Anonymous
  13. Geometry

    Quadrilateral ABCD is a parallelogram. If adjacent angles are congruent, which statement must be true? A. Quadrilateral ABCD is a square. B. Quadrilateral ABCD is a rhombus. C. Quadrilateral ABCD is a rectangle. D. Quadrilateral ABCD is an isosceles

    asked by Lauren
  14. physics

    a store advertises carpet that costs $ 18.95 per square yard. how much does that carpet cost per square meter?

    asked by karla
  15. Calc

    can someone help me get the first and second derviative for X square root 4-X^2. For the first derviative I did this by using the equation F(x)g'(x)+g(x)f'(x). After using this my final answer is looking something like -X^2/(4-x^2)^1/2+ (4-x^2)^1/2 I am

    asked by Amber
  16. astronomy

    Mars has an albedo of 15. Given that it doesn't have much of an atmosphere, estimate the mean surface temperature on Mars. Note: the semimajor axis of the orbit of Mars is 1.52 AU. (Please enter your answer in units of degrees Kelvin)

    asked by vineeth
  17. astronomy

    The red supergiant Betelgeuse has a surface temperature of 3600 K. a) Using the fact that the Sun's surface temperature is about 5800 K and that its continuous spectrum peaks at a wavelength of 500 nm, find the peak wavelength of Betelgeuse's continuous

    asked by vineeth
  18. chemistry

    while chloromethane is reactive towards nucleophiles, the Grignard reagent produced from chloromethane is reactive towards electrophiles. explain pl.

    asked by and
  19. Economics

    What does it mean to influence government? Why should active citizens participate in government? *Influencing government means to help vote, help choose elected officials, contact representatives, etc. Active citizens should participate because they have

    asked by Rose
  20. Stats

    In the last Canadian census, 2.6% of all Ontario residents declared themselves to be Ukrainian ethnic origin. In a recent survey of 500 Ontario residents, 3.1% of people declared themselves to be of Ukrainian ethnic origin. Using the statistical meanings

    asked by terry
  21. History/Economics

    What did President Johnson announce to the American people during his television address on March 31, 1968? Select all that apply. He would not seek another term as president. He would further increase U.S. involvement in Vietnam. He would support Senator

    asked by Rose
  22. Maths

    A rope is wound 50 times round a cylinder of radius 25cm.How long is the rope?Use the value 3,41

    asked by Kudakwashe
  23. History

    What does it mean to influence government? Why should active citizens participate in government? What is the media? Explain how the media can influence government. What is an interest group? Explain how interest groups can influence government, and give an

    asked by Rose
  24. Maths

    If zeros of p(x)=2x2-7x+k are reciprocals of each other,then find the value of me

    asked by Anonymous
  25. English

    17. Some people believe that feelings should be nurtured and cherished, while others argue that feelings should be curbed and kept under control. Indicate one poem that demonstrates the desire to restrain emotion and one poem that demonstrates the desire

    asked by Nikki
  26. Science : physics

    An electron travels in a circle of radius 6.1 m while under the influence of an unknown magnetic field, directed perpendicular to its velocity. If the particle makes 6.6 trillion complete revolutions per second, determine the magnitude of the magnetic

    asked by Zana
  27. science

    A weight of 500kg is suspended by two chains 1.5m and 2.7mrespectively.the chains are attached to a beam that is 3.746m in length. The distance from the suspension to the ground being 900m. A.Calculate the load. B.the vertical and horizontal reactions at

    asked by iris
  28. Chemistry

    When calcium iodate is added to water at 25 degrees Celsius, the equilibrium concentration of calcium ion was found to be 0.011M. Calculate the value of Ksp for this salt.

    asked by Kelsey
  29. History

    What does it mean to influence government? Why should active citizens participate in government? What is the media? Explain how the media can influence government. What is an interest group? Explain how interest groups can influence government, and give an

    asked by Rose
  30. CALC

    can someon help me find the horzontial and verticle asymptotes for x square root 4-x^2. For HA someone told me none but I dont understand how and is the VA -2 and 2. Please help and show all work Thank you

    asked by Amber
  31. Math

    Through how many radians does the minute hand of a clock rotate in 50 min? In 7 h?

    asked by Bhu
  32. Chem

    When 20.0mL of 1.40M solution of calcium nitrate is mixed with 70.0mL of 0.234M potassium iodate, a precipitate Ca (IO3)2 is formed. Calculate the concentrations of both NO3- and IO3- before mixing and after mixing.

    asked by Justin
  33. Chemistry

    When 20.0mL of 1.40M solution of calcium nitrate is mixed with 70.0mL of 0.234M potassium iodate, a precipitate Ca (IO3)2 is formed. Calculate the concentrations of both NO3- and IO3- before mixing and after mixing

    asked by Justin
  34. science

    a loaf of bread has a mass of 2000g and a volume of 500 cm3. what is the density of the bread

    asked by jazmyn
  35. Analytic Chemistry

    Barium Sulfate precipitated from a 1.300 sample was contaminated with 9.4 mg of Fe2(SO4)3 and weighed a total of 314.0 mg. Calculate the apparent % BaSO4 and True % BaSO4

    asked by Nacorda
  36. MATH 123

    Darla purchased a new car during a special sales promotion by the manufacturer. She secured a loan from the manufacturer in the amount of $23,000 at a rate of 4.6%/year compounded monthly. Her bank is now charging 6.2%/year compounded monthly for new car

    asked by Anonymous
  37. STATISTICS

    A bag contains 5 purple marbles, 7 yellow marbles, and 3 orange marbles. If two marbles are selected from the bag: What is the probability that a yellow then an orange are chosen without replacement.

    asked by John
  38. STATISTICS

    Determine which of the four levels of measurement is most appropriate. Heights of survey respondents.

    asked by John
  39. chemistry

    sodium chloride has a molar mass of 58.4g/mole. how many grams of sodium chloride are needed to make 500.mL of a 0.0250 molar solution?

    asked by alyssa
  40. math

    Study the ways of raising a loan to buy a car or a house. You are required to visit personally two banks at least and ask for the documents required by the bank and the whole process of raising a loan. Describe the whole process in written on project

    asked by rogin
  41. Discrete or continuous help

    Identify the given random variable as being discrete or continuous. The number of stories in a specific Manhattan office building.

    asked by John