Questions Asked on
July 24, 2016

  1. chemistry

    Nylon 88 is made from the monomers H2N(CH2)8NH2  and  HOOC(CH2)6COOH.  So, would you characterize nylon 88 as rather an addition or a condensation polymer? Please explain your answer

    asked by Chem
  2. Physics

    At what positions is the speed of a simple harmonic oscillator half its maximum? That is, what values of x / X give v = ±vmax/2 , where X is the amplitude of the motion? Hello, I am so confused about this question. I am not really sure where to start.

    asked by Elizabeth
  3. english

    Change underlined phrase to show ownership or possession

    asked by maryellen
  4. Maths-Numeracy

    How many pairs of rabbits will there be after a year if it is assumed that every month each pair produces one new pair, which begins to bear two young two months after its own birth?

    asked by Hoa
  5. 12th grade Chemistry

    BOND BREAKING AND BOND MAKING: Determine by calculations and energy level diagrams, to proof whether these two reactions are endothermic or exothermic reactions.. 1. Methane burns in oxygen 2. Nitrogen (II) reacting with oxygen producing nitrogen

    asked by Barachiel
  6. Physics

    A cyclist moving on a corcular track of radius 40m completes half a revolution in 40 sec. Its average velocity is nearly

    asked by Khilin
  7. Algebra

    The variable Z is directly proportional to X. When X is 6, Z has the value 72. What is the value of Z when X = 13

    asked by Brianna
  8. Chemistry

    Determine by calculation and diagrames to proof whether these two reactions are endothermic or exothermic .. 1. Methane burns in oxygen 2. Nitrogen (II) reacting with oxygen producing nitrogen monoxide.

    asked by Barachiel
  9. Someone Please Help me- PreCalc

    Determine the missing coordinate of the point (4/7,y) that lies on the graph of the unit circle in quadrant IV. Please show the steps because I need to solve more. Thank you.

    asked by chizoba
  10. physics

    three resistors of 2ohm, 3ohm and 4 ohm are connected in (a) series (b) parallel. find the equivalent resistance in each case

    asked by ganga
  11. Statistics

    Assume that​ women's heights are normally distributed with a mean given by mu equals 63.8 inμ=63.8 in​, and a standard deviation given by sigma equals 3.1 inσ=3.1 in. Complete parts a and b.

    asked by Keith
  12. math

    a bullet is fired horizontally with a velocity of 200m/s.if the acceleration due to gravity is 10m/s-2, un first second through which height it will move.

    asked by pawab
  13. maths

    The temperature in a town was 24 degrees at midday. The temperature rose by 5 degrees to reach a maximum at 2pm and the dropped 17 degrees before midnight. what was the temperature at midnight?

    asked by daniel
  14. Math

    Agnes had 4 times as many blue beads as yellow beads. For every 5 beads she used to make a necklace, she used 3 yellow beads. She completed the necklace after she had used up all the yellow beads. If she had 35 blue beads left, how many yellow beads did

    asked by Anonymous
  15. math: permutations

    Hi, I need your help. I just cant figure out how to solve this problem. Question: There are two rows of chairs. The first row has two chairs and the second row has four chairs. In how many ways can six people be seated if a couple from the group must sit

    asked by Aina
  16. physics

    a pendulum swing with a speed of 1.5 m/s at its lowedt point. How high will it rise before it stops

    asked by Anonymous
  17. Math

    John makes $9.25 per hour. He gets time and a half for overtime. (Overtime is more than 40 hours per week.) How much money would he make for working 45 hours?

    asked by Unknown
  18. Math

    A right circular cylindrical can is 6 inches high , and the area of its top is 36 square root square inches . What is the minimum number of square inches of construction paper it would take to cover the lateral surface of this can ?

    asked by Amy
  19. math

    Could someone please help me answer this question i am stuck! A Marketing company provides the following formulas to the owner of an amusement park to help him make decisions about the park. -The number , N, of people who attend the park is a function of

    asked by angelina
  20. Math

    Evaluate the integral using u substitution ((y^3)/((1-y^2)^2))dy

    asked by ANON
  21. Aviation Security

    Question 1 of 20 Why is microwave holographic imaging not being used as a security measure in U.S. airports? A. The cost is prohibitive. B. It violates the Fourth Amendment rights of passengers. C. It issues too many false alarms. D. Each passenger must

    asked by KC
  22. mathematics

    an equilateral triangle is placed inside and a right angled isosceles triangle.determine the value of x + y

    asked by fikile
  23. Math

    Please Help A body consists of a solid hemisphere of radius r joined to a right circular cone of base radius r and perpendicular height h. The plane surfaces of the cone and hemisphere coincide and both solids are made of the same material. Show that the

    asked by Joe
  24. math

    justine a security guard has 3 successive night duties a week when will they see again if they are together now. find gcf

    asked by krisha reyes
  25. Some Please Help me - PreCalc

    Verify that the point ( square root(31)/7, -3square root(2)/7 ) lies on the graph of the unit circle. If it does, use symmetry to find three other points that also lie on the graph of the unit circle. (direction - Type ordered pairs). PS: The -3 is outside

    asked by chizoba
  26. math

    there are 91 students that attend mass .this represents 70% of the students. how many students at mass

    asked by jeff
  27. Math

    5/3+x=2; x

    asked by Ethel
  28. Maths & numeracy

    Loose almonds in a supermarket cost $6.48 for 250gm, or you can buy 375 gm of pre-packaged almonds for $10.65. Which is the better buy?

    asked by Hoa
  29. MATH

    Integrate 1/(x(x^2+1)) dx using trig substitution

    asked by ANON
  30. counseling

    During the initial session, counselors should be sure to assess clients for each of the following problems except for a. if there is an actual plan. b. the availability of the method and the degree to which the method is lethal. c. past, present, and

    asked by cudy
  31. PHYSICS

    a bus starts from rest and in 30s it reaches speed of 20m/s.then the speed remains steady for 15s and decreases steadily until it stops 5s later.what the distance covered from strat to finish.

    asked by Muuka
  32. Msths

    If i have 26 months to pay back 15000 dollars how much would i pay monthly?

    asked by Donovan
  33. Math

    5= 6y; y=

    asked by Ethel
  34. physics

    Calculate the momentum of a 100 kg object moving with velocity 10m/s

    asked by rishabh
  35. english

    1. my parents work hard to support us. 2. we help them do the household chores.

    asked by faustina labadan
  36. physics

    Calculate the momentum of a 100 kg object moving with velocity 10m/s

    asked by rishabh
  37. MATHEMATICS

    Exactly four years ago the Moloto family had 4 members, and their average age was 22. The Moloto’s then adopted another child. If the average age of the family today is 24, at what age was the child adopted, given that he was adopted exactly two years

    asked by SERIRI
  38. Math

    the perimeter of a rectangle is 24cm.express tha area of the rectangle in terms of width x

    asked by Giyang
  39. Math

    Find two number whose product is a 1-digit number and the sum is a 2-digit number.

    asked by Arjun kv
  40. Physics

    Jet of water striking series of radial flat vanes of the wheel is 200 mm and the velocity of the jet is 100 m/s. The velocity of the vanes is 46 m/s Calculate the force exerted on the series of vanes by the jet of water.

    asked by Herman
  41. Calculus

    If x^2 + y^2 = 25 and dx/dt = 8, find dy/dt when x=3.

    asked by Brad
  42. Java

    Need help how to do this not sure how or anything can someone help please. Which class contains the function pow ? Write the statement to use the method pow to compute and output 6.5 3.5.

    asked by Poohboi
  43. Java

    Need help with this it my first time and not get it can someone please help here. Which class contains the function pow? Write the statement to use the method pow to compute and output 6.5 3.5 .

    asked by Poohboi
  44. geometrey

    Decide whether perimeter or area should be considered when buying tilestiles needed for a floor.

    asked by jena
  45. math

    The amount of medicine ingested by the body is a function given by A(t)= 5/6 (12t-t^2) Estimate the slope of the tangent at the point (4, 80/3). Use an interval of 0.01. Explain what the value represents for this situation.

    asked by Bob
  46. Chemistry

    Why Fe(III) can be estimated in acidic medium by dicromet not by permanganet? — please give answer basis on value of reduction potential

    asked by yeasin
  47. math

    Evaluate the expression: s = 8; 6s^2

    asked by Miguel
  48. Math

    Find the solution of the given equations. x-1/x^2-9+1/x-3=2/x+3 Thank you! :)

    asked by Gennelle
  49. MATHEMATICS

    There are thrice as many girls as boys at a school. If 35% of the girls and 45% of the boys have already completed their holiday project, what percentage of the learners still needs to complete their project?

    asked by SERIRI
  50. Maths

    Jet of water striking series of radial flat vanes of the wheel is 200 mm and the velocity of the jet is 100 m/s. The velocity of the vanes is 46 m/s Calculate the force exerted on the series of vanes by the jet of water.

    asked by Herman
  51. Algebra

    $ 3420 Is To Be Shared Btw Two Ppl. But One Of The Two Must Have 28% Morethan The Other, How The Sharing Would Be Made Then?

    asked by somay
  52. Algebra

    If x

    asked by Hannah
  53. Math

    Could someone please help me to solve this equation using exact values. 9^(2x)+4(9^x)=21 and also check for extraneous roots. thank you

    asked by angelina
  54. MATH

    Solve the integral using trig substitution (1/((x)(x^2+1)))dx

    asked by ANON
  55. chemistry

    pH of 1.0 x 10-8 M RbOH

    asked by Richard
  56. maths

    simplify 6x+4y*-3x+5x-2x*3y

    asked by sarah
  57. $15000.in 1999

    How much should pay back now.

    asked by Anonymous
  58. Maths

    Please Help Differentiate Sin sqrt x from first principles

    asked by Joel
  59. Maths

    Prove That If the equation x^2+ax+b=0 and cx^2+2ax-3b=0 have a common root then b=5a^2(c-2)/(c+3)^2

    asked by Joe