Questions Asked on
December 24, 2012

  1. math

    A school has 63 students studying Physics, Chemistry and Biology. 33 study Physics, 25 Chemistry and 26 Biology. 10 study Physics and Chemistry, 9 study Biology and Chemistry while 8 study both Physics and Biology. Equal numbers study all three subjects as

    asked by ifi
  2. maths

    AB=36 cm and M is the mid-point of AB. Semicircles are drawn on AB,AM and Mb as diametrs.A circle with centre C touches all the three circles. Find the area of the shaded region.

    asked by Anonymous
  3. Science 24

    calculate the momentum of a 2000-kg truck travelling 19 m/s.

    asked by seanna
  4. Physics

    A 1.0kg mass weighs 9.8 Newton on earth's surface, and the radius of Earth is roughly 6.4 x 10 to the power of 6. The mass of the earth is 6.02 x 10 to the power of 24. Calculate the average density of Earth?

    asked by Rebecca
  5. Physics-mechanics

    Two spheres are placed so that their centers are 2.6m apart. the force bvetween the two spheres is 2.75 x 10 to the power of negative 12 Newton.What is the mass of each sphere if one sphere is twice the mass of the other sphere?

    asked by Rebecca
  6. pennfoster

    Research project. The HIPAA privacy standards that went into effect in April 2003 greatly affact both the privacy rights of patients and the duties of medical personnel

    asked by Goddy
  7. in chem

    calculate the mass of this sample: 1.05 * 10 to the power of 26 atoms of neon, Ne(g) I know that I have to first divide by the avagadros constant, then once get the moles I need to multiply by the molar mass of neon to get the grams, I did that sevral

    asked by Help
  8. ctu

    Diane works at a public university. She contributes $625 at the end of each month to her retirement fund. For the past 10 years, this fund has returned 3.84% a year, compounded monthly. a. Assuming the 3.84% rate continues, how much will she have in her

    asked by Anonymous
  9. maths --plse help me..

    In a pentagon ABCDE, angle B = 168, angle C:angleD = 23:25 and AB//ED. Find angle C and angle D.

    asked by Anonymous
  10. matg

    erin is makin fruit punch for her friends to make the drink she mixes 3 quarts of fruit juice with half quart of ginger ale.what is the ratio of fruit to ginger ale in her drink

    asked by zoie
  11. maths

    Express sin 2x cos 4x as a sum of trigonometric functions

    asked by tom
  12. fin/370

    The target capital structure for Jowers Manufacturing is 51% common stock, 20% preferred stock, and 29% debt. If the cost of common equity for the firm is 20.8%, the cost of preferred stock is 11.8%, and the before tax cost of debt is 10.8%, what is the

    asked by at
  13. maths --plse help me..

    ABCD ia a parallelogram whose diagonals intersecting at E. AC is produced to F such that CF=AE. Prove that ar(BDF)=ar(parallelogram ABCD)

    asked by Anonymous
  14. science- atmospheric layer

    why is the mesosphere important to the atmosphere?

    asked by Anonymous
  15. maths

    In a parallelogram ABCD, diagonals AC & BD intersect at O. E, F, G, & H be the midpoints of sides AO, DO, CO & BO. Find the ratio of (EF+GH+HG+EH) TO (AB+BC+CD+AD)

    asked by Anonymous
  16. maths --.

    If sin theeta=3/5 , cos alpha= -12/13 and theeta,alpha both lie in 2nd quadrant,find the value of tan (theeta+alpha).

    asked by Anonymous
  17. calculus

    solve the following inequality. write your solution in interval notation. x^3+9x^2-108 less than or equal to 0 please show all work

    asked by Josh
  18. English I Speech

    Can anyone please share their idea of a strong, powerful hook, background information and thesis about fracking? Please this urgent. Be quick like your life depends on it.

    asked by Tony
  19. English I Speech

    Can anyone tell me 3 reasons why fracking is either good or bad and 3 supporting details? Please, thank you It's urgent

    asked by Tony
  20. maths

    A motor boat goes downstream twice as fast as upstream. Find the power speed of the boat if the water flows at 6km/h.

    asked by Anonymous
  21. maths

    If y=x+tanx then prove that cos^2x(y2)-2y+2x=0 where y2 is the second derivative...plz help me out.

    asked by abhi
  22. PLEASE HELP

    WHAT ENVIRONMENT IS BETTER FOR WHALE LAND OR SEA WHY PLEASE HELP PLEASE

    asked by MARK HARIZON
  23. Math

    Factor this a^2b^2 -ab^3+16b^4

    asked by Praphul
  24. calculus

    can someone please help me find all the zeros of the following polynomial. write the polynomial in factored form. f(x)=x^3-3x^2+16x-48 can you please show all work

    asked by Josh
  25. science

    what is the temperature range of the stratosphere?

    asked by Anonymous
  26. math

    three sevenths divided by six thirteenths = ?

    asked by lindy
  27. science

    I would like to know the lists of situations in which DNA fingerprinting is useful

    asked by Nweni
  28. physics

    when an accident happens in the sea due to collision of ships, there is a huge amount of oil spill in the sea .how does this affect of eco system?what spices of the marine life are affected by it and how?

    asked by bhavika
  29. physics

    a cricketer throw the ball to have maximum horizontal range of 120m.if he throws the ball vertically with same velocity what is the maximum height it can reach?

    asked by vidya
  30. business

    suppose that al knows that the probability of an investigation is 0.70 how low must the probability of water's completing its research on time be so that the probability of litres being awarded the contract is at least 0.65?

    asked by vinoth
  31. Math!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    The sound intensity of a rainfall is 4.5×10^-9 W/m^2. Find the corresponding sound intensity level.

    asked by Nicole
  32. English

    Hello. I'll be grateful for some help. 1)Is it possible to use the prepositions "above", "upon", "on" in the phrase "to raise the flag ...Palestine"? 2)Do you think the sentence is OK "He was killed in an Israeli air bombing"? Thank you very much for help.

    asked by Ilma
  33. science

    what is the temperature range of the stratosphere?

    asked by Anonymous