Questions Asked on
December 31, 2012

  1. geometry

    The Polygon Angle-Sum Theorem states the following: The sum of the measures of the angles of an n-gon is ____. (1 point) (n – 1)180o (n – 2)180o 9. What is the measure of one angle in a regular 16-gon? (1 point) 2,520o 202.5o 157.5o 78.75o 10. The

    asked by josh
  2. Chemistry..

    What mass of aluminum is produced by the decomposition of 5.0 kg Al2O3? My answer is 3000 g of Al Do you convert kg to g? 5.0kg---> 5000g???

    asked by Anonymous
  3. geometry inequality triangles help if you can

    Two sides of an obtuse triangle are 16 and 21. How many possible lengths are there for the third side, if it is a positive integer? i know that in an obtuse triangle a^2+b^2c but i tried plugging in and it wont work so couldyou guys help me? btw merry

    asked by Knights
  4. Chemistry..

    When sodium chloride reacts with silver nitrate, silver chloride precipitates. What mass of AgCl is produced from 75.0 g AgNO3? My answer: 63.3g AgCl

    asked by Anonymous
  5. maths

    THE Perimeter of a triangle is 2004. One Side of a triangle = 21 Times the other. the shortest side is integral length. SOLVE For lengths of the sides of the traingle in every possible case.

    asked by sonia
  6. Chemistry 30

    How do I complete an ICE table for a solution of nitrous acid, HNO2, one of the acids associated with acid deposition?

    asked by Iris
  7. physics

    A car of mass 1000kg moving with a velocity of 36km/h hits a wall and comes to rest in 5s.find the force and work done by the car on the wall.

    asked by zoya
  8. math

    Given figure A and Figure B such that ar(A) = 20sq.units and ar( B ) = 20 sq. A. Figure A and B are congruent B. Figure A and B are not congruent C. Figure A and B are similar D.Figure A and B may or may not be congruent

    asked by Shivani
  9. maths

    ANDY HAS TWICE AS MANY MARBLES AS PANDY AND SANDY HAS HALF AS MANY HAS ANDY AND PANDY PUT TOGETHER .ANDY HAS 110 MARBLES WHICH IS 115 MARBLES LESS THAN SANDY.HOW MANY MARBLES EACH OF THEM HAVE

    asked by Anamika
  10. Math

    A sixth-grade class completed a survey about favorite foods. Of the students in the class 2/6 chose hamburgers, and 3/8 chose pizza. What fraction of the class chose either hamburgers or pizza.?

    asked by Acacia
  11. Algebra

    Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis

    asked by Katia
  12. physics

    A loudspeaker has a movable diaphragm (cone) that vibrates back and forth in harmonic motion to produce sound. The displacement of the cone playing a sinusoidal test tone is shown above. Find the following values from the graph. (NOTE: t = 0.03 sec, and

    asked by sunny
  13. HELP PLZ MATH

    A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a color television is $90 with a standard deviation of $22. Monte's TV Sales and Services completed repairs on two sets this morning. The labor cost for the first

    asked by Nick
  14. English

    Mr. Smith, my Spanish teacher, is going on vacation. is this correct PUNCTUATION AND GRAMMER

    asked by Phil
  15. Physics

    For a certain transverse wave, the distance between two successive maxima is 1.82 meters and eight maxima pass a given point along the direction of travel every 14.2 seconds. Calculate the wave speed. Answer in units of m/s

    asked by Daniel
  16. Maths

    Three circles are placed on a plane in such a way that each circle just touches the other two each having a radius of 10 cm. Area of the region enclosed by them.

    asked by Shruti katiyar
  17. Physics

    A truck travels up a hill with a 15◦incline.The truck has a constant speed of 26 m/s. What is the horizontal component of the truck’s velocity? Answer in units of m/s What is the vertical component of the truck’s velocity? Answer in units of m/s

    asked by Marsha
  18. altitude triangle inequality

    hi guys ive be struggling on this problem for a couple of days, so please help if you can Problem:Two altitudes of a triangle have lengths 12 and 14. What is the longest possible length of the third altitude, if it is a positive integer? Thanks in advance

    asked by Knights
  19. math

    i need help with this open-ended you are having so much fun in the kitchen you decide that you want to make your aunt,s favorite dessert to show her special she is to you .you find the recipe on the internet for the recipe white raspberry cheesecake

    asked by Eduarda
  20. physics

    A tank holds 2.85 L of oxygen at 22.1 Celsius and 235 atm. (A) how many moles of gas does the tank contain? (B) what is the average kinetic energy per molecule ?

    asked by Physics student need help
  21. math

    7/9 divid 3/6

    asked by Eduarda
  22. music

    what was entertainment like during Mozart's time?

    asked by Anonymous
  23. math

    1. If m∠BAC = 38° and m∠DEC = 100°, then what is the value of x? Explain and show all work.

    asked by mh
  24. Help math plz

    A firm is deciding whether or not to place a product on the market. They envisage three posible market reactions: high demand, moderate demand, and low demand. If demand is strong they expect to sell 200,000 a month of the good; moderate sale levels are

    asked by John
  25. algebra 2

    find all the zeroes of: x^5-3x^4-24x^3-72x^2-25x+75=0 5x^5-20x^4-40x^3-16x^2-45x+180=0 -3x^5+3x^4+9x^3-7x^2+12x=12 x^3-x^2-13x-13=0 x^3+x^2=15x-15 Thank you for any help...I'm desperate please help :(

    asked by nathalie
  26. maths

    one FOURTH OF A HERD OF CAMELSWAS SEEN IN THE FOREST . TWICE THE SQUARE ROOT OF YHE HERD HAD GONE TO MOUNTAINS AND THE REMAINING15 CAMELS WERE SEEN ON THE BANK OF THE RIVER . FIND THE TOTAL NO. OF CAMELS

    asked by sania
  27. physics

    A pendulum and a mass spring system are both undergoing simple harmonic motion on Earth (use g = 10 N/kg). It is observed that every time the pendulum goes back and forth, the spring has gone up and down 14 times. If the pendulum has a length of 5 meters

    asked by sunny
  28. math

    The sum of two consecutive numbers is 37. What are they

    asked by Anonymous
  29. math

    what is the % difference between 288 to 404

    asked by diane
  30. math

    Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0

    asked by algebra
  31. business

    among factors that influence consumer decision-making, buyers remorse is generally associated with

    asked by stephanie
  32. math

    show 7 two different ways

    asked by june
  33. english

    What is the simple subject and simple predicate in the sentence: A good fire is difficult to build.

    asked by jenna
  34. english

    What is the simple subject and simple predicate in sentence: The smell of cooking is delicious to the hungry campers.

    asked by jenna
  35. engineering mechanics

    A person A is trying to keep his balance while on a sled B that is sliding down an icy incline. Let mA = 78kg and mB = 25 kg be the masses of A and B, respectively. In addition, let the static and kinetic friction coefficients between A and B be μs = 0.4

    asked by q
  36. calculus

    solve the following exponential equation. exact answers only 1-8x 3x ¨i =e *I know that I did not post this correctly but I do not know how to put the 1-8x above the pie symbol and 3x above the e.

    asked by Jennifer
  37. history

    in the 1920s, literature played a huge roll in people's lives. however, when the great depression struck in 1929, people were unable to purchase literature and books were focused on the downfall of society and how the glitz and glamour of the 1920s

    asked by Gregg
  38. algebra 2

    identify the vertex, axis of symmetry and the dirction of opening for y=-(x-6)^2-5

    asked by John
  39. algebra

    3 - __2X-2______ X^2-1 Write the expression as a fraction in simplest form. 3 minus 2x-2 over xsquared minus 1 Can anyone help?

    asked by Josie
  40. math

    i need help with this open-ended you are having so much fun in the kitchen you decide that you want to make your aunt,s favorite dessert to show her special she is to you .you find the recipe on the internet for the recipe white raspberry cheesecake

    asked by carina
  41. Physics

    If velocity of wave of 0.15m/s and the frequency of 20HZ,what is the wavelength?

    asked by Musa
  42. physics

    A horizontal spring mass system is set up to keep time so that it goes from one side to the other in 6 seconds. The mass used in this system is 0.69 kg. The distance from one side to the other is 2.4 m. What spring constant should be used if it is to

    asked by sunny
  43. chemistry

    How many grams of NH2OH are needed to prepare 250mL of a solution with a pH of 9.56? kb=6.6x10^-9

    asked by sabryna
  44. Algebra

    Didnt write my question too good last time so here is what I meant. This is a mixed ezpression written as fraction and then to be put in simplest form. 3/1 minus 2x-2/x^2-1 thank you

    asked by Josie
  45. Algebra

    Didnt write my question too good last time so here is what I meant. This is a mixed ezpression written as fraction and then to be put in simplest form. 3/1 minus 2x-2/x^2-1 thank you

    asked by Josie
  46. social studies

    by whom was it built the hanging gardens of babylon

    asked by Eduarda
  47. math

    danielle plays softball and basketball. however because she like basketball more, she spends 3 times as long playing basketball than she does playing softball. if she spends 18 hours a week playing these sports, how much time does she devote tp playing

    asked by paula
  48. math

    2. manielle and ross were playing in the dirt and each found a caterpillar. they decided to race them, giving minelle's caterpillar a 2.5 foot head start from the starting line while ross' caterpillar began at the starting line. minelle's caterpillar

    asked by Gregg
  49. Medical coding 2

    Unknown causes of morbidity or mortality should be coded only when?

    asked by Mhel
  50. Math

    Random samples were taken over 2 weeks (14 days) of a drink machine and data was collected of each drink sold. The sample mean was 65.2 drinks with a deviation of 8.1 drinks. Construct a 95% confidence interval on the mean number of drinks sold per day.

    asked by Kitty
  51. maths

    what is the number of different 10 digit telephone number made from digits 0-9?

    asked by Anonymous
  52. math

    54/9 + 6 14/15

    asked by Carlos
  53. maths

    a pair of dice is thrown ...find the probability of getting 7 as the sum if it is knwn that second die is always exihibts a prime number

    asked by Anonymous
  54. maths

    a right angled triangle has legs a,b (a is greater than b).the right angle is bisected splitting the original triangle into 2 smaller triangles.Find the dist btw. the orthocentres of the smaller triangles.

    asked by Anonymous
  55. calculus

    Find the inverse the following function. Find the domain, range, and asymptotes of each. f(x)=In(x+1)+1 Please show work

    asked by Julienne
  56. Calculus

    A function has a relative Maximum of (0,0) and a relative minimum of (3,-5). What is the function?

    asked by Lost One
  57. algebra

    Please help THANKS write as a fraction in simplest form (a/b +1)(b/a-1)

    asked by Josie
  58. Trigonometry

    1. If tanθ = –√3 , what is the value of cot ? 2. Find the value of 3sec2.4. (Round to the nearest tenth.) 14.if sinθ = -4/5 and tanθ = -4/3, what is

    asked by Alonso
  59. Physics

    An arrow is shot at an angle 35◦ with the horizontal. It has a velocity of 47 m/s.The acceleration of gravity is 9.8 m/s^2.What horizontal distance will it travel? Answer in units of m

    asked by Marsha
  60. math

    4^2(4squared)>or=-2(x-5) 16>or=-2x+10 -10 to both sides 6>or=-2x 6/-2>or=-2x/-2 -3

    asked by es
  61. Physics

    A 68.5kg man is standing still on an elevator that isn't moving, what is the normal force on him?

    asked by Mele
  62. Physics

    A 68.5kg man is standing still on an elevator that isn't moving, what is the normal force on him?

    asked by Mele
  63. Biology

    In a lab on lung capacity where lung volumes (Tidal Volume, Expiratory Reserve Volume, Inspiratory Capacity, Inspiratory Reserve Volume, and Vital Capacity) are measured... Why can't you measure the Inspiratory Reserve Volume (IRV) directly? (In the

    asked by Ash
  64. American Givernment

    Help me create a mnemonic for and about special interest groups.

    asked by Jeri
  65. Medical coding 2

    Can someone tell me the answer for part I I trauma and poisoning coding exercise 5.100

    asked by Mhel
  66. math

    what fraction of 2 hours is 40 minutes ?

    asked by linda
  67. Science

    What is science?

    asked by Sameer yadu