Questions Asked on
April 25, 2010

  1. language arts

    IN the poem “Swift Things are Beautiful” by Elizabeth Coatsworth reveals that every thing is beautiful in its own way. Although the title says that only swift things are beautiful, the poet also lists slow things that are beautiful. She uses unusual

    asked by Hannah
  2. Chemistry

    Consider the following equilibrium process at 686 C C02(g)+H2(g)=CO(g)+H20(g) The equilibrium concentration of the reacting species are [CO]=0.050M, [H2]=0.045M, [CO2]=0.086M, and [H20]=0.040M. (a)Calculate the Kc for the reaction at 686 C. (b) If we add

    asked by Amphee
  3. Chemistry

    could someone help me with this question? A quantity of 400 mL of .6 M HNO3 is mixed with 400 mL of .3 M Ba(OH)2 in a constant pressure calorimeter of negligible heat capacity. The initial temperature of both solutions is the same at 18.46 degrees Celsius.

    asked by Tokey
  4. Chemistry

    Given the following data, determine the heat of vaporization and normal boiling point of ammonia Temp (K): 200 210 220 230 235 Pressure (respectively)(torr): 65.3 134.3 255.7 456.0 597.0

    asked by Timothy Boo
  5. chemistry

    what is the oxidation no of I3-

    asked by fen
  6. Chemistry

    Pure phosgene gas (COCl2), .03mole, was placed in a 1.5 L container. It was heated to 800k, and at equilibrium the pressure of CO was found to be .497 atm. Calculate the equilibrium constant Kp for the reaction CO(g) + Cl2(g) = COCL2(g)

    asked by Adam
  7. Physics

    a tank of helium gas used to inflate toy baloons is a pressure of 15.5 x 10 Pa and a temp of 293 k. The tank's volume is 0.020 m. How are a baloon would it fill at 1.00 atmosphere and 323 k

    asked by Rita
  8. chemistry*

    Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. The reaction is given below. Fe2O3(s) + 2 Al(s) -->2 Fe(l) + Al2O3(s) What masses of iron(III) oxide and aluminum

    asked by Anonymous
  9. physics

    two charges attract each other with a force of 1.5 N. what will be the force if the distance between them is reduced to one-ninth of its original value?

    asked by lara
  10. Calculus

    Give acceleration a=d^2s/dt^2,initial velocity, and initial position of a body moving on a coordinate line. Find the bodys position at time t. a=e^t v(0)=20 s(0)=5

    asked by Anonymous
  11. captitals italics abbreviations and numbers

    Question 1 Which of the following is the correct name of a region? the Southwest the southwest the South-West the south-east Question 2 Which of the following is correct? esperanto klingon Japanese american sign language Question 3 Which of the following

    asked by christopher
  12. math

    what is 8P3

    asked by PAVLEEN
  13. AP Chemistry

    A buffer solution contains .4mol of formic acid, HCOOH and a .6mol of sodium formate, HCOONa, in 1L of solution. Ka of formic acid is 1.8 x 10^-4. a) calculate pH b) if 100ml of this buffer solution is diluted to a volume of 1L with pure water, the pH does

    asked by Jessie
  14. Physics 100

    A bat flying in a cave emits a sound and receives its echo 0.25 s later. How far away is the cave wall?

    asked by Ali
  15. CHEMISTRY

    2NO(g) + O2(g) --> 2NO2(g) Derive the theoretical rate law and indicate whether or not this is a possible mechanism for the above reaction: (1) 2NO(g) * N2O2(g) (fast) (2) N2O2(g) + O2(g) --> 2NO2(g) (slow) Extra Info: This reaction is third order overall.

    asked by Vanessa
  16. physics

    A brass ring of diameter 10.00 cm at 19.9°C is heated and slipped over an aluminum rod of diameter 10.01 cm at 19.9°C. Assume the average coefficients of linear expansion are constant. (a) To what temperature must the combination be cooled to separate

    asked by Kelsey
  17. PHYSICS!

    A 0.15 kg ball of dough is thrown straight up into the air with an initial velocity of 13 m/s. (a) Find the momentum of the of dough at its maximum height. kg·m/s upward (b) Find the momentum of the ball of dough halfway to its maximum height on the way

    asked by britt
  18. Physics

    Three uniform meter sticks, each of mass M, are placed on the floor as follows: stick 1 lies along the y axis from y = 1.3 to y = 2.3 m, stick 2 lies along the x axis from x = 0.0 to x = 1 m, stick 3 lies along the x axis from x = 1.0 m to x = 2.0 m. Find

    asked by Robert
  19. chemistry please check

    for the following reactions label each species as an acid or a base. Indicate the species that are conjugate acids and conjugate bases. A. HSO4-(acid) + NH3(base) SO4^2-(conj base) + NH4+ (conj acid) B. HPO4^2- (conj base)+ NH4+ (conj acid) H2PO4-(acid) +

    asked by Anna
  20. English

    Which of the following items should not be underlined or put in italics? the Bible magazine titles works of art book titles works of art

    asked by christopher
  21. Calculus

    Give acceleration a=d^2s/dt^2,initial velocity, and initial position of a body moving on a coordinate line. Find the bodys position at time t. a=e^t v(0)=20 s(0)=5

    asked by Anonymous
  22. Physics

    (a) An ideal gas occupies a volume of 1.6-cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. (b) If the pressure of the 1.6-cm3 volume is reduced to 1.6 10-11 Pa (an extremely good vacuum) while the

    asked by Kelsey
  23. Chemistry

    Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. The reaction is given below. Fe2O3(s) + 2 Al(s) 2 Fe(l) + Al2O3(s) What masses of iron(III) oxide and aluminum must

    asked by Anonymous
  24. College Physics

    Sirius is about 9.0 light-years from Earth. To reach the star by spaceship in 10 years (ship time), how fast must you travel? How long would the trip take according to an Earth-based observer? How far is the trip according to you?

    asked by Lanise
  25. Physics

    A balloon appears to be yellow when seen in white light. Explain the colour it will appear in a) green light and b) magenta light. I really don't undestand the subtractive theory of light, and it applies to this question. Can you please explain to me how

    asked by Emily
  26. physics

    Find the pressure difference on an airplane wing where air flows over the upper surface with a speed of 119 m/s, and along the bottom surface with a speed of 105 m/s. (b) If the area of the wing is 40 m2, what is the net upward force exerted on the wing?

    asked by Kim
  27. physics

    A spherical steel ball bearing has a diameter of 2.540 cm at 24°C. (a) What is the diameter when its temperature is raised to 82°C? (b) What temperature change is required to increase its volume by 1.1%? I got the first answer right. i am having trouble

    asked by Kelsey
  28. AP Stats

    The mean weight of pears grown in a certain orchard is 6 ounces with a standard deviation of .5 ounces. A random sample of 30 pears is selected. What is the approximate probability that the sample mean weight is less than 5.5 ounces?

    asked by Lilly
  29. Math

    Write and simplify an expression to represent the area of each figure. My answer: 2x +(x+3)(x-2) = x^2-x-6 Textbook Answer: x^2-x-2 Please help. Thanks.

    asked by John
  30. math-please help!

    Determine whether the situation calls for a discrete or continuous random variable. The number of freshmen in the required course, English 101 The braking time of a car I think the first one discrete and the second is continous is this correct?

    asked by KiKi
  31. chemistry

    A scuba diver's tank contains 0.39 kg of O2 compressed into a volume of 2.5 L. Calculate the gas pressure inside the tank at 12°C.

    asked by Laine
  32. math

    Determine whether the situation calls for a discrete or continuous random variable. The number of freshmen in the required course, English 101 The braking time of a car I think the first one discrete and the second is continous is this correct?

    asked by KiKi
  33. Chemistry

    Terephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. It contains only C, H, and O. Combustion of 19.81 mg terephthalic acid produces 41.98 mg CO2 and 6.45 mg H2O. If 0.262 mol of terephthalic acid has a mass of

    asked by sean P.
  34. Trig

    a boeing 747 jet maintains an airspeed of 650 miles per hours in a southwesterly direction. the velocity of the jet stream is a constant 80 miles per hour from the west. find the actual speed and direction of the aircraft. how do i set this up? can anyone

    asked by Karley
  35. physics

    the speed of a transverse wave on a string is 450 m/s while the wavelength is .18m. the amplitude of the wave is 2mm how much time is required for a particle of the string to move through a total distance of 1km

    asked by Tasha
  36. Physics

    An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. use newton's laws to determine the electron's velocity after it moves .10 cm

    asked by Standard C.
  37. accounting

    The following transactions occurred during July: (1) Received $700 cash for photography services provided to customer during the month. (2) Received $1,500 cash from Barbara Hanson, the owner of the business. (3) Received $800 from a customer in partial

    asked by Anonymous
  38. 9th grade Algebra

    A spinner has 3 three sections, each with different point values and areas. -The 1-point section is 2/3 the area of the spinner. -The 2 point section is 1/4 the area of the spinner. -The 3 point section is 1/12 the area of the spinner. To the nearest tenth

    asked by Kaila
  39. English

    Question 1 In what instance should you use a semicolon? between dependent clauses between independent clauses between clauses and phrases in place of a comma Question 2 In what instance should you use a semicolon? between a dependent clause and a phrase

    asked by christopher
  40. Chemistry

    Pure phosgene gas (COCl2), .03mole, was placed in a 1.5 L container. It was heated to 800k, and at equilibrium the pressure of CO was found to be .497 atm. Calculate the equilibrium constant Kp for the reaction CO(g) + Cl2(g) = COCL2(g)

    asked by Amphee
  41. Statistics

    . [16 points] A coach uses a nw technique to train gymnasts. 7 gymnasts were randomly selected and their competition scores were recorded before and after the training. The results are shown below. Before After 9.7 9.9 9.4 9.7 9.6 9.2 9.6 9.4 9.6 9.7 9.7

    asked by Elyse
  42. chem

    Use this percentage to calculate the mass of fluorine in grams contained in 29.0 g of copper (II) fluoride

    asked by melissa
  43. Physics

    During a rescue operation, a 5350 kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 59.0 m/s. What mass of air must pass through the blades every second to produce enough thrust for the helicopter to hover?

    asked by Carden
  44. accounting

    Shania Shelton, the owner, invested $105,000 cash, office equipment with a value of $6,000 and $45,000 of drafting equipment to launch the business in exchange for its common stock. Which journal entry would this be?

    asked by Tiffany
  45. math

    Find the entries of the following matrices: (a) the 2 ×2 matrix M for the reflection across the line y = x. (b) the 2 ×2 matrix N for the 90 degree counterclockwise rotation about the origin. (c) the product MN;what transformation does this represent?

    asked by Eunice
  46. Chemistry

    Why doesn't potassium ion K+ from KMnO4 appear in the following two unbalanced equations: MnO4– + C2O42– Mn2+ + CO2 MnO4– + Fe2+ Mn2+ + Fe3+ ? A. KMnO4 is not added to either reaction. B. K+ is a spectator ion and redox reactions are written as net

    asked by John
  47. Chemistry*

    Oh sorry I forgot the arrows! Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. The reaction is given below. Fe2O3(s) + 2 Al(s) -->2 Fe(l) + Al2O3(s) What masses of

    asked by Anonymous
  48. Math

    For a normally distributed distribution of variable x, where the mean is 50, and standard deviation is 2.5, calculate: a) the percentile rank of x=45 b) the z-score of x=52.6 c) the percentile rank of x=58 d) the 29.12th percentile e) the 89.74th

    asked by Ally
  49. physics

    The gravitatioinal force between two metal sphere in outer space is 2000 N. How large would the force be if the two spheres were four times farter apart?

    asked by Linda
  50. L.A

    What is the effect of onomatopoeia in a poem?

    asked by Evie
  51. Chemistry

    A balloon is filled with 0.75 L of helium gas at 1 atm pressure and 25 degrees Celsius. The balloon is released and floats upward in the atmosphere. The temperature drops to 23 degrees Celsius and the balloon expands to 1.50 L. What is the pressure at this

    asked by Zecnoe
  52. math

    1. To determine the number of deer in a game preserve, a conservationist catches 309 deer, tags them and lets them loose. Later,324 deer are caught ; 162 of them are tagged. How many deer are in the preserve? 2. q+9/3 + q-5/5 = 14/3 3. 6/v =9/v -1/11 4.

    asked by AR
  53. math-please help

    If a two-card hand is dealt from a well-shuffled deck of 52 cards, what is the probability that the hand contains two kings?

    asked by KiKi
  54. geometry

    Three circles are externally tangent to one another. The radius of each of the circles is 2 cm. A belt fits tightly around the three circles. Find the length of the belt. Express your answer in terms of pi with an explanation.

    asked by Brittany
  55. math

    Q.1)Find hcf and lcm of the following using fundamntal theorem of arithematic 12,720 and 540. Q.2)Find the greatest number which divides 418,1354 and 2146 exactly leaving remainder 10 in each case. Q.3)If product of HCF and LCM of two numbers is 5120.One

    asked by stan
  56. Economics

    Which of the following is least likely to affect an economy's capacity to produce? A.Technology B. Capital C. Labor D. Education E. Government spending I know technology and capital both have a significant affect on the economy's economy so I can cross

    asked by Tran
  57. Confidentiality of Health Information

    When should the patient be notified of purging and archaic or inaccurate information? I think it would be Procedures for purging the computerized data base of archaic or inaccurate data should be established and the patient and physician should be notified

    asked by Need Help
  58. 5th grade

    one light year is about 9 trillion kilometers . arctus is a star that is 37 light years from earth.if you are 11 years old now,how old will you be when light that is leaving arcturus today reaches earth. how far in kilometers willit have traveled .sow your

    asked by cheyenne
  59. finance

    The equipment that would be used has a 3-year tax life, after which it will be worthless, and it will be depreciated by the straight line method over 3 years. Revenues and other operating costs are expected to be constant over the project's 3-year life.

    asked by Anonymous
  60. Phsyics Waves

    Earthquakes are essentially sound waves traveling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse seismic waves. These travel at different speeds. The speed of longitudinal

    asked by Michael Moskvich
  61. Waves

    With what tension must a rope with length 2.10m and mass 0.115kg be stretched for transverse waves of frequency 39.0hz to have a wavelength of 0.790m ?

    asked by Michael Moskvich
  62. math-please help!

    The number of complaints received by a business bureau can be represented by the following probability distribution. Find the expected number of complaints per day. complaints per day -0,1,2,3,4,5 probability-0.01,0.11,0.26,0.28,0.19,0.12 can someone

    asked by KiKi
  63. Statistics

    From the coefficient of multiple determination, we cannot detect the strength of the relationship between the dependent variable y and any individual independent variable. A. True B. False

    asked by Sharon
  64. math

    what is 7c2

    asked by PAVLEEN
  65. physics

    Two identical negative charges are located on the y axis, at y = +4m and y = -4m. What is the direction of the net electric field at a point on the x axis at x = 2m?

    asked by physics gal
  66. ratios

    A dessert recipe call for 3 cups of flour and 1 cup of sugar. It serves 4 people. If the recipe must be altered to serve 12 people, how many cups of flour will be needed?

    asked by Anonymous
  67. Chemistry

    40000liter gasoline tank is filled with liquid gasoline with an avg vapor pressure of 20 mm Hg.At 50% saturation, what weight of gasoline would escape to the atmosphere during filling?

    asked by Anna
  68. Accounting

    The following are all of the accounts of Mean Green Company that have a balance at the end of August, the company's first month of operation: Accounts receivable $11,000 Cash $10,100 Equipment 39,700 Advertising expense 3,000 Service revenues earned 32,000

    asked by Anonymous
  69. math

    Two dice are rolled. What is the probability that the sum of the dots on the upward faces is NOT 12

    asked by angie
  70. English

    Question 9 How is an amount indicated for a noncount noun? add an -es to the noun include a noncount noun first add an -s to the noun include a count noun first Question 10 Count nouns are usually what type of words? wrong specific limitless abstract

    asked by christopher
  71. Accounting

    Janfer Book Store purchased a new automobile that cost $10,000, made a down payment of $3,000, and signed a note payable for the balance. The entry to record this transaction is: Cash 3,000.00 Note Payable7,000.00 Automobile 10,000.00 Cash 3,000.00

    asked by Anonymous
  72. algebra

    How do you complete the square by filling in the two blanks so as to produce a true equation. x^2 - 12x + ---- = (x - -----)^2

    asked by dan
  73. physics

    As a bowling ball of radius 14.9 cm rolls down the alley to the right, a frictional force of magnitude 1.43 N, directed to the left, acts on it. Find the frictional torque with respect to an axis through the center of the ball.

    asked by Michael
  74. Chemistry

    i asked this question earlier and thanks to dr bob i got the empirical formula. which is C6H3O2. I need help finding the molar mass to get the molecular formula. Terephthalic acid is an important chemical used in the manufacture of polyesters and

    asked by sean P.
  75. advance geometry

    A plane is flying east, ascending at a constant angle. Jack is standing on the ground, watching the plane come to (horizontally) directly at him. When he first sees the plane, at an angle of elevation of 15 degrees, its horizontal distance from him is

    asked by maha
  76. chemistry

    use resonance theory to account for the fact that aniline(pKb 9.37) is a weaker base than cyclohexanamine(pKb 3.34)

    asked by josh
  77. Physics

    What is the energy of a hydrogen atom with a 1.70 nm diameter?

    asked by MK
  78. math

    This isn't a specific math question. I'm just looking for some tips for my calculus midterm tomorrow. I'm terrible at math and I can't seem to "think outside the box" in order to do problems correctly. I know my stuff but if a teacher throws something a

    asked by Kelly
  79. Physics

    Bobby, a 100 kg football player has a fever of 29 degrees C. What mass of water must evaporate from his body to cool him to 27 degrees C?

    asked by Blah
  80. Physics

    An inductor is in the built in the shape of a solenoid of radius 0.20 cm, length 4.0 cm, with 1000 turns. This inductor is connected to a generator supplying an rms voltage of 1.2×〖10〗^(-4) V AC at an angular frequency of 9.0×〖10〗^3 radians/s.

    asked by Lee
  81. College Chemistry

    explain why krypton can form compounds with other elements, but neon cannot

    asked by Jim
  82. Chemistry

    Help needed on a homework problem - solution of HCN and CN- , Ka 6.2x10^-10 . Is this a buffered solution? Shouldn't the pH be greater than 7, and [OH] >[H]? Does adding a strong acid have more effect than adding a strong base? Thanks.

    asked by Laura
  83. vectors

    3 planes; $: x+2y-2z-6=0 %: 2x-y+z+8=0 £: 2x-y+2z+3=0 (a)(i)Find the cartesian equation for the plane @ parallel to $ and containing the point (1,1,2) (ii)Calculate the distance between $ and @ (b)(i)Find the parametric equations for the line of

    asked by Anonymous
  84. HCA 220

    I am supposed have a draft ready tues, of my power point presentation. Its a medical story board. What exactly is a draft? Is this on paper like when writing an essay or slides?

    asked by Kayleigh
  85. physics

    Hi! could anyone please help me with this problem. Thank you so much. Q: The critical angle for total internal reflection for ice surrounded by air is 49.8°. Calculate the Brewster angle for ice if the light is incident from the air.

    asked by Chan
  86. Vectors

    3 planes; $: x+2y-2z-6=0 %: 2x-y+z+8=0 £: 2x-y+2z+3=0 (a)(i)Find the cartesian equation for the plane @ parallel to $ and containing the point (1,1,2) (ii)Calculate the distance between $ and @ (b)(i)Find the parametric equations for the line of

    asked by Anonymous
  87. math

    When a single card is drawn from an ordinary 52-card deck, find the odds in favor of getting a red 10 or a black 6. I think the answer is 1:12. Is that correct?

    asked by KiKi
  88. Accounting

    Sam's grocery store had the following at the end of 20X5: Cash $22,000 Accounts receivable 49,000 Accounts payable 17,000 Fees earned 61,000 Rent expense 12,000 Insurance expense 3,600 Salary expense 18,000 Supplies 15,000 Sam, capital 49,600 Sam,

    asked by Anonymous
  89. Chemistry

    If 0.00002 mol of Na2S is the limiting reactant...how do I calculate the maximum mass of precipitate formed?

    asked by Stacey
  90. college

    The moral majority and the Christian Coalition are examples of:

    asked by Anonymous
  91. physics

    the earthis moving around the sun in a circular orbit of radius 1.5*10^11. it makes one revolution per year.find the angular speed of earth in radian/sec, and the tangential speed of earth using the formula v=r.w , and tangetial speed ?

    asked by mo
  92. math

    Verify that the circles x2+y2 = 25 and (x−5)2+(y−10)2 = 50 intersect at A = (4, 3). Find the size of the acute angle formed at A by the intersecting circles. You will first have to decide what is meant by the phrase the angle formed by the intersecting

    asked by Ella
  93. ratios in context

    A scale drawing shows the plans for a barn in a 1:48 ratio. On the plan, a wall of the barn is 2 feet in length. How long will the actual wall be?

    asked by Anonymous
  94. chemistry

    what mass of salt can be produced from the reaction of 3.45 grams of sodium hydroxide and an excess of hydrochloric acid?

    asked by Alexis
  95. English shifting and mixed sentences

    1. Which sentence contains a shift in number? The lake contained garbage that flows through the storm drains. He couldn't refuse when offered another helping of dessert; sometimes you just can't resist! His book was returned to the bin, and then Johnny

    asked by christopher
  96. chemistry

    Please I need help...I have been trying so hard to finad this answer... Suggest a test chemical that can be added to the water sample to precipitate the lead(II) ions. please show a chemical eqaution for the formation of the precipitate. Thank u so much:)

    asked by Stacey
  97. Algebra II

    suppose you are biking down a hill at 24 mi/h. What is the angular speed, in radians per second, of your 27-inich-diameter bicycle wheel?

    asked by Alex
  98. chemistry

    2H2O(l)=2H2(g) +O2(g) if water is removed, the direction of equilibrium is unaffected since liquid water is not in the equil equation. What if large amount of water is removed, is the answer still the same

    asked by bme1
  99. maths

    a cylindrical cake with radius 12cm and height 10cm has a slice cut out. The shape of the top of the slice is a sector of the circle that forms the top of the cake. Exluding the sliced piece, the angle is 320 degrees. a) Calculate the area on top of the

    asked by nabiha
  100. 12th grade

    In 10-15 lines critically discuss 5 ways in which the environmental problem impacts on the community. provide relevant sources to support your claims.

    asked by Madimetja
  101. ratios

    A dessert recipe call for 3 cups of flour and 1 cup of sugar. It serves 4 people. If the recipe must be altered to serve 12 people, how many cups of flour will be needed?

    asked by Anonymous
  102. Confidentiality of Health information

    Dr. Bob's computerized records have been compromised by a hacker, resulting in damages to patients. Which of the following is most true? A. Dr. Bob may be liable if he didn't have proper firewall or other protections. B. Dr. Bob won't be liable. C. Dr. Bob

    asked by b
  103. ENGLISH

    hy! Can somebody be so kind and correct my essay on " Being a surgeon is very stressful" I would really appreciate it, because my english is not perfect and I think I made some mistakes :) According to my opinion being a surgeon is one of the most

    asked by Lulu
  104. English

    15.Which of the following is the correct expression of numbers in a series? twelve dogs, eleven cats, and 1 mouse 3 apples, 23 lemon, and one fig one car, two trucks, and a bus ten adults, 2 teenagers, and a baby Question 16 Which of the following is

    asked by christopher
  105. English singulars and plurals

    Please make any necessary corrections to the following sentence. The oldest house in our neighborhood was built thirty five years ago; it is located at fifteen tenth street. my answer The oldest house in our neighborhood was built 35 years ago; it is

    asked by christopher
  106. Adjectives and Adverbs

    Question 1 This modifier illustrates the rule that adjectives of two syllables vary. If the word ends in -y, change the y to i and add -er, -est endings. Otherwise, some two-syllable adjectives take -er, -est endings. Others take more, most and less,

    asked by christopher
  107. 5th grade

    The square and triangle have the same perimeter 12cm.Each figure is made up of sides of equal measure.How long is each side of the triangle ?

    asked by Anonymous
  108. Math

    My answer: x^2+3xy+3x+2y^2-3y Textbook Answer: x^2+3xy+2y^2+3x-3y Does the order matter? Thanks.

    asked by John
  109. math

    is each ordered pair a solution of the given system? write yes or no. 1. y=6x+12 2x-y=4 (-4, -12) 2. Y= -3x x=4y+1/2 (-1/2,3/2) 3.x+2y=2 2x+5y=2 (6,-2) 4. Solve the system by graphing. Check your solution. x + y=3 x - y=-1

    asked by Anonymous
  110. accounting

    The following data represent total revenues (from all sources) for the Palmdale Human Service Agency for the past four fiscal years: 20X1 $15,000,000 20X2 $14,250,000 20X3 $14,000,000 20X4 $13,500,000 Forecast total revenues for fiscal year 20X5 using

    asked by Anonymous
  111. Math 30 Trig

    How do I find the x-intercept of the graph of y=3sin 2x? Could you explain the steps to put this into my graphing calculator to get the graph. Please and thanks

    asked by Rae
  112. Physics

    A particle of mass m0 is given a kinetic energy equal to one-third its rest-mass energy. How fast must the particle be traveling

    asked by Leah
  113. High School

    What are the compulsory and optional subjects in high school?

    asked by Chad
  114. chemistry

    What volume of 12M HCl must be diluted to make 2L of solutioin with a pH of 4?

    asked by Anonymous
  115. chemistry

    in balancing I3- --- I- + IO3- wat is reduced to what

    asked by fen
  116. Chem Dr Bob

    So your saying that sulphuric acid is used to test lead in water?

    asked by Stacey
  117. English

    Can you help me simplify or correct these sentences,too? Thank you very much in advance 1) In fact she resists all her master’s advances protecting her (?) virtue and in her turn gains a proposal of marriage which she accepts obtaining a social position

    asked by Franco
  118. To Writeacher

    Writeacher I am having difficulties taking out the you, ours, we in the fourth paragraph. I am having difficulties rephrasing. It doesn't seem to make sense when I do. English is not my first language, maybe that's why. Here it is. I tried to change some

    asked by Sara
  119. Trig

    Need answer check pls. Find the rectAngular equation for the plane curve by parametric equAtions. X=t +4 , y= t^2

    asked by Stacey grahaM
  120. algebra-is this right

    A basketball player has a vertical leap of about 36 in. If the equation d=48t^2 describes his hang time t as a function of his vertical leap d. what is his hang time? Show your work. 36=48t^2 t^2=3/4 t=(1/2)sqrt(3)seconds

    asked by dan
  121. world history

    Why was the Parthenon, Theater of Dionysus, The Temple of Delphi, The Agora, and the Marble Shop important to Ancient Greeks in Athens?

    asked by Caroline
  122. Biology

    1)If you wish to carry out a cladistic analysis of a group of species, then there are several types of information that you might find useful. Which one of the following choices describes a type of information that would be least useful in a cladistic

    asked by Wande
  123. arithmetic

    A model airplane takes 2.7 hours to contruct and 13.5 hours to finish. Determine the ratio of construction time to finish in simplest form

    asked by Chad
  124. math

    Mike took four tests: English, Math, Science and History. He scored a 74 in English and an 84 in History. The average of the four tests was 72. Math had a better score than Science by 6 points. What was his Science score?

    asked by joey
  125. English

    Question 12 Which of the following is correct? i.e. I.E. ie IE Question 13 Which of the following is incorrect? 16,500 four dollars in his 30s the nineteenth century Question 14 Which of the following is the correct usage of a percentage? 13 percent 13%

    asked by christopher
  126. Grammar and Composition

    Does this sentence make sense for the word coquette?: My friend likes to coquette with most of the guys at school. ?

    asked by y912f
  127. precalc

    Let f(x) be linear f(16)=-5 f(20)= -17 Find f(x) Calculate f(12)

    asked by Reema
  128. classroom management

    Consider other types of interruptions, such as a fire drill or having a student paged to the front office during a lesson. i cant think of any but having a disruptive student address how you will adapt your strategies to work under a variety of unexpected

    asked by scooby
  129. aed 205

    Read the following vignette and identify the factors that threaten the activity flow of the lesson. Once you have identified the problems, explain how you would avoid the problems if you were the teacher. Here is the story Mrs. P.waits while her

    asked by scooby
  130. art

    Give two reasons why jackson pollack's style of painting is considered important?

    asked by Maya
  131. social studies

    what are the resources for developments and what is developments process.

    asked by Tosin
  132. accounting

    how do you find the percent of $20768 ?

    asked by Anonymous
  133. Math (quick)

    |-6| |2-4| |1/2-3/4| What do the vertical signify? Thanks.

    asked by John
  134. English shifting and mixed sentences

    Question 11 Which sentence contains a shift in subject and voice? We drove around the block in Billy's car for a few minutes, and then we discover the flat tire. Everyone should report to your building by 7:00 a.m. Each visitor to the museum should pick up

    asked by christopher
  135. science

    the types of plants and animals that live in a particular what depends on the water, soil and amount of sunlight the area receives.

    asked by gerard
  136. english

    can you suggest me some websites to study for da ela test on mondat

    asked by pAvLeEn
  137. English

    Question 7 Which of the following is correct? Streets in Pittsburgh streets in Pittsburgh sts. in Pittsburgh aves. in Pittsburgh Question 8 5 points Save Which of the following is the correct form to use in a sentence? 25 pct. 25 percent 25 perct. 25%

    asked by christopher
  138. Science ( chemistry )

    how to make electrohemical cell with iron and aluminium foil? I should make that at home and at school teacher will give me acid or something to put metals in that. And i should know how to conect that with wires and make the bulb light - so i should

    asked by angela
  139. Algebra

    3{[3(x-5)15]-[3(4x-3) +3]} I need help to simply this. I have been working on this for 2 hours and still don’t get it, can anyone help?

    asked by Lori
  140. Physics

    A spaceship approaching a planet at a speed of 0.20c fires a probe toward a planet. Observers on the planet see the probe approaching at a speed of 0.61c. What is the speed of the probe as measured from the spaceship

    asked by Amy
  141. Algebra

    Can someone help me with this question? Use the discriminant to determine whether the following equations have solutions that are:two different rational solutions: two different irrational solutions: exactly one rational solution: or two different

    asked by dani
  142. math

    what are some strengths and limitations of predicting populations when using a Exponential expression?

    asked by sarah
  143. 8 math

    A painting by a famous impressionist sold through an auction house where the sale price is not publicly disclosed. The auction house works on a commission rate if 10%. They earned a commission of $400,000 on this painting. What was the price of the

    asked by Anonymous
  144. math

    what are some limitations and strengths of predicting popultion using an power function?

    asked by sarah
  145. Math

    How Do You Solve this: 158=8p+14

    asked by Alisha
  146. english essay

    Hello everyone! Can you write me some ideas about: "Being a surgeon is a stressfull job." i coulkd really use some help and also ideas about solve tis problem=stress. So what could eg a surgeon do to be /more relaxed? thank you!

    asked by Lulu
  147. Inequalities

    5-|x+4| ≤ -3 ≤ is less than or equal to sign Thanks!

    asked by Skye
  148. accounting

    Evaluate the asset, debt, and equity structure of Lucent Technologies, as well as trends and changes found on the common-size balance sheet. 3. What concerns would investors and creditors have based on only this information? 4. What additional financial

    asked by Anonymous
  149. Math (graphing number lines)

    How would I graph the following on a number line? x ¡Ý 3

    asked by John
  150. aed

    o Consider other types of interruptions, such as a fire drill or having a student paged to the front office during a lesson. i cant think of any but having a disruptive student

    asked by scooby
  151. algebra

    I was wondering if my answer is right. Let f (x)=(x+10)^2. Find x so that f(x)=72 (x+10)^2=72 x^2+20x+100=72 x^2+20x+28=0 x=(-20+-sqrt(400-112))/2 x=-10+6*sqrt(2)

    asked by dan
  152. Algebra

    What is the domain and range of the square root of (x-3) 5

    asked by Debbie
  153. physics

    Air will break down as a dielectric when subjected to applied fields in excess of 3 * 10^6 N/C. a parallel plate capacitor using air as a dielectric has a capacitance of 1.0nF and a separation b/t plates of 1.0micrometer. how much energy U was stored in

    asked by K
  154. college

    FIND THE VERTEX THE LINE OF SYMMETRY THE MAX OR MIN VALUE OF THE FOLLOWING F(X)= -X^2+10X+5

    asked by BETH
  155. social studies

    on what peninsula is sparta located?

    asked by bella
  156. English

    Which of the following is correct when using an author’s name in your essay? use the author’s full name throughout the essay use the author’s last name when first mentioned and throughout the essay use the author’s full name when first mentioned in

    asked by christopher
  157. accounting

    consider the purpose of the trail balance. do you feel it is important? How would you use this with your own records?

    asked by kathy ingram
  158. poetry

    Why does Sylvia Plath decide to behin her poem crossing the water with black and repeats it twice in the first line?

    asked by Tara
  159. Math

    Simplify each rational expression. Can you please show me the steps on how you got the answer. Thank you (over means there is a line under the first expression and then the second expression is placed underneath the line) 2c^2-c-1 over 2c^2+3c+1 8c^2+2c

    asked by Stacey
  160. college physics

    We're talking about induction/inductance/electromagnetic induction. Question: dropping two cylinders through a metal pipe for which one is magnet, one drops quickly and the other slowly. Why?

    asked by Mike
  161. Chemistry

    I need to find the mass of solute that will dissolve in 300 g water at 45 degrees C.

    asked by Ernesto
  162. Science (Biology)

    1) In using cladistical analysis to assemble a hypothetical tree of a group of species, there are several things that must first be known. Of the items listed below, which one states an item that is not essential in order to use cladistics? A) Have found

    asked by Wande
  163. fractions and decimals

    Use the four numbers in each line to make a fraction and an equivalent decimal - please show workings. thanks ? - = ?.? ? 8 6 1 5 9 4 5 2 0 9 10 9 13 6 5 2 5 31 2 6 20 0 4 8 1 60 5 40

    asked by montana
  164. math check

    Simplify each rational expression. 3a(a-4)^2 over a^2(a-4) I don't understand how the answer would be 3(a-4) over a because the a-4 would cancel out??? 4-y^2 over y^2-2y once I simplify I get (2-y)(2+y) over (y-2)(y+2) I don't understand how the answer is

    asked by Stacey
  165. algebra

    how do you find the solution set to 7/w=8/w - 1/3?

    asked by marie
  166. Math (quick)

    My answer: x^2+3xy+3x+2y^2-3y Textbook Answer: x^2+3xy+2y^2+3x-3y Does the order matter? Thanks.

    asked by John
  167. com- 425

    Under the Style Approach, where does your "worst manager" fall? Describe your experience.

    asked by meshelle
  168. English shifting and mixed sentences

    Question 16 Which sentence contains a shift in tense? We drove around the block in Billy's car for a few minutes, and then we discover the flat tire. Each visitor to the museum should pick up their visitor pass at the head office. Everyone should report to

    asked by christopher
  169. science

    what differences produce a variety of ecosystems?

    asked by gerard
  170. Math Check

    y^2-5y over y^2-7y+10 What did I do wrong.. for my answer i got (y+5) over (y-2) and the correct answer is y over (y-2)??? How would you do this problem? 3x over x+1 = ? over x^2-x-2

    asked by Stacey
  171. math

    what does ! mean in math

    asked by pAvLeEn
  172. algebra

    7.5 over 12 = 8.5 over a what does a equal?

    asked by rebecca
  173. chemistry

    A strong acid solution with H+=4 is diluted to twice its original volume. Will the pH go up, down, or stay the same?

    asked by Anonymous
  174. math-please help!

    Use the properties of lines to parallel solve the problem. If p ðF q and mÚ8 = 52‹, what are the measures of the other angles?

    asked by KiKi
  175. science

    Write a complete C program that asks the user to enter continuously a series of words and the word “end” to stop. For each word entered, you should output the number of characters of this word and then ask him to enter the other word. Finally, when he

    asked by sami
  176. english

    explain this quote by william shakespeare "Talking is not doing, It is a kind of good deed to say well, but words are not deeds".

    asked by Boo
  177. math

    What is 2/3 minus 1/6

    asked by Michele
  178. Chemistry

    Ni (s) + Cd^2+(aq)-->Ni^2+(aq)+ Cd(s) MnO4^-1(aq)+ Al (s) ---> Mn^2+(aq)+Al^3+(aq) no matter what i do, i can't seem to balance either of these redox reactions. i'm always off. is there a trick to doing these? i need help please.

    asked by Carl
  179. Adjectives and Adverbs

    6. This modifier illustrates the rule that adverbs of two syllables take more, most and less, least. more quickly least dignified prettier larger Question 7 This modifier illustrates the rule that adverbs of two syllables take more, most and less, least.

    asked by christopher
  180. chem homework help

    can you check my work? Give the conjugate acid for each of the following bases. A. CN- = HCN B. SeO4^2- = HSeO4- C. HCO3- = H2CO

    asked by Anna
  181. Math Probability

    A new shipment of 9 VCRs, which will be offered at a very low price, are delivered, Unknown to the manager, 4 of the VCRs are defective, Determine the probability that at least 1 of the first three VCRs sold is defective.Did I do this right? 1-5C3/9C3

    asked by Rae
  182. math

    how do you this question: 4P2

    asked by PAVLEEN
  183. math

    3. You recently started the paperwork to purchase a new home, and you were just notified that you can move into the house in 2 weeks. You decide to hire a moving company, but are unsure which company to choose. You search online and are interested in

    asked by jillian
  184. English

    Question 6 Which sentence contains a shift in person? He couldn't refuse when offered another helping of dessert; sometimes you just can't resist! The lake contained garbage that flows through the storm drains. If a student does not understand the

    asked by christopher
  185. 205 Critical Thinking

    What do you think about this statement? Inductive and Deductive claims such as all,none, or some, impact the assertions od argument.

    asked by Marie
  186. social studies: psychology

    Which is the best example of a conditioned response? A. a gun-shy dog cowers when he sees a shotgun B. a child flinches when a balloon bursts a foot from her face C. a snail withdraws into its shell when someone pokes a stick at it D. a dog perks up its

    asked by Diem
  187. Physics

    A 150.0 g aluminum cup is filled with 450. g of water at 95℃. The combination cools uniformly by 1.20℃ per minute. At what rate (J/s) is thermal energy being removed from the combination?

    asked by Kelly
  188. English

    Thank you very much for your invaluable help. I wrote a few more paragraphs on Richardson's Pamela I hope you can check, too.(the parts in brackets) 1)Pamela is (was) written in epistolary form, that is in the form of letters exchanged between Pamela and

    asked by Franco
  189. Algebra

    How would I write a quadratic equation having the given numbers as solutions 4i, -4i

    asked by dani
  190. Pre Calc

    1) How do you analyze this function: 11x-2y=0 2) Find the equations of the lines to the line whose equation is y-7 -3 ---- = ----- x-13 2 if these lines pass through the point (6,-5)

    asked by Reema
  191. English singulars and plurals

    Question 1 A count noun describes something that what? cannot be divided into distinct units can be divided into distinct units has no plural has no singular Question 2 A noncount noun describes something that what? can be divided into distinct units has

    asked by christopher
  192. social studies

    How does the French Revolution and the Haiti Revolution change the way people live and view the world? and how did they change or shape the way people lived. if possible list a few key points that i can later expand on in each revolution. any answer is

    asked by Evan
  193. calculus

    what is the antiderivative of f(x)= x^4-2 sq root(X) +3/x^3

    asked by leah
  194. MATH

    how do u answer a question that uses !

    asked by pAvLeEn
  195. chemistry

    in balancing I3- --- I- + IO3- wat is reduced to what

    asked by fen
  196. math-help

    what is the formula to find the distance of a cube with three sides that are measured at 6 each.....

    asked by KiKi
  197. Math

    I need to give an example of a function with at least one removable and one non-removable discontinuity. I am not to sure how to do this. Please explain! Thanky you

    asked by Abbey(Please help)
  198. aed 205

    Read the following vignette and identify the factors that threaten the activity flow of the lesson. Once you have identified the problems, explain how you would avoid the problems if you were the teacher. Here is the story Mrs. P.waits while her

    asked by scooby
  199. English

    Last year, his company earned three million $ before June, 30th. my answer Last year his company earned 3 millon dollars before June 30th.

    asked by christopher
  200. math

    It takes 4 workers five days to clean 180 miles of highway. How many workers are needed to clean 250 miles of highway in just 6 days?

    asked by joey
  201. Grammar and Composition

    what about..My friend acted like a coquette at the party last night ? Does this make sence for coquette?

    asked by y912f
  202. Business

    What are some examples of competitive advantages Korea possesses? I've tried searching, but didn't really find anything

    asked by Laura
  203. precals

    find the equations of the lines to the line whose equations is y-17 / x -13 = -3 /2 If these lines each pass through the point (6,-5) Gracias`

    asked by treeema
  204. chemistry

    for chemical equilibrium, what is the difference between percent ionization and percent dissociation

    asked by bme1
  205. Science

    What kind of information has the International Space Station provided us? And what have we benefited from the information? I'm doing a project and I can't find these answeres ANYWHERE!! Any answers or websites would be GREAT!! Thank you!!!

    asked by Ceci
  206. literature

    list the literary works that you would put in your personal literary canon.

    asked by Anonymous
  207. Legal and Ethical Aspects of Health Information

    Write a 200 word paper on the three executive offices which most frequently affect the Health Information profession. What do they mean by three executive offices which most frequently affect the Health Information profession. I do not understand can you

    asked by CC
  208. English

    I forgot to include these other sentences. Thank you vey much for your cooperation. 1) The main features of Richardson’s novels are as follows/Or R’s novels have the following features./ Within R’s novels you can (are there other ways of expressing

    asked by Franco
  209. Math (URGENT)

    Write and simplify the expression. My answer: 2x +(x+3)(x-2) = x^2-x-6 Textbook Answer: x^2-x-2 Please help. Thanks.

    asked by John
  210. Math

    x^2-x-12/x^2-3x-4*x^2-1/x^2+2x-3 Please help me solve, I am desperate!

    asked by Iz
  211. ETH 125

    I am having trouble with a journal entry and how to do with in first person. And finding one to do because I have all kinds of mixtures of blood, I am Indian, Irish, German,and others. So what do I write about?

    asked by Terri
  212. PreCalculus

    Hi im unsure how do this problem becasue I do not how to go about these types of problems were you make monthely payments each month of the same amount... Janene contributes $50 per month inot the Chaing China Bond Fund htat earns 7.26% annual intrerest.

    asked by Kate
  213. faculty of science

    what nursing system are found in the south african health care

    asked by maty
  214. business

    Think of a way Centura College Online could utilize one of the systems for decision making or control mentioned in this chapter to improve the way it educates students. Write a proposal (minimum of one page) to the School Director “selling” your idea.

    asked by Anonymous
  215. med coding

    whats one option for providing your employees with health care coverage for work related injuries? medicaid plans, medical savings plans, self insurance coverage or referrals to other networks

    asked by nikki
  216. English

    20.Which one of the following sentences has a number error? 25 people registered for the event. Sara lost her Social Security number, but she thinks it's 458-71-4782. Our vacation lasted 10 days and 9 nights. We received over 10,000 applications my answer

    asked by christopher
  217. math

    18 girls need a ribbon each that is 3/4 yards long. How many yard do they need?

    asked by Anonymous
  218. Math

    Need help with this one Factor completley, if not write prime 6X2 + X-15

    asked by Gabriel
  219. algrebra

    Solve by applying the quadratic Formula: all radicals should be simplified as far as possible. Show your work. a^2 -12a + 35 =0

    asked by dan
  220. Precalculus

    please post response in this forum so i don't have to search for the old one u skipped this question still need help h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 2 2 4 0 9 7 0

    asked by Kate
  221. PHYSICS RELLY QUICK QUESTION

    is air resistnace negaitve because it opposes the motion?

    asked by NINI
  222. math

    is each ordered pair a solution of the given system? write yes or no. y=6x+12 2x-y=4 (-4,-12)

    asked by Anonymous
  223. Math

    3{[3(x-5)15]-[3(4x-3) +3]} I need help to simply this. I have been working on this for 2 hours and still don’t get it, can anyone help?

    asked by Lori
  224. English

    Please define what is meant by "general to specific logic." Thank you

    asked by Cliff
  225. Math

    how do you find the roots of this equation? 0= -5.1x^3 - 115.38x^2 -866.48x - 2158.26

    asked by Varun
  226. COMPUTER SCIENCE

    I am finding that it is hard to balance the text and graphics without going overboard in cs4? May I have some advise please????

    asked by AMANDA
  227. Subject Selection

    I would just like to know that in what field should i study in. The main problem is that i can't choose between science and commerce. From your perspective please tell me which is better science or commerce?

    asked by Chad
  228. math

    there is a circle with abcd and point at the d, there is a dice and the only side you see on the dice is two three five here is the equations P(d, 4) =

    asked by Angie
  229. math

    what are some limitations and strengths of predicting popultion using an exponential equation?

    asked by sarah
  230. social studies

    How does the French Revolution and the Haiti Revolution change the way people live and view the world? and how did they change or shape the way people lived. if possible list a few key points that i can later expand on in each revolution. any answer is

    asked by Evan
  231. Biology

    when there is a deleterious (harmful) mutation in the gene coding for the protein 6-phosphofructokinase, muscle type

    asked by Jenny
  232. maths

    (6 * 8) × (–1)

    asked by wee
  233. math

    how do u do 3P4

    asked by pAvLeEn
  234. Science

    How do people find/make sodium hydroxide?

    asked by S.S
  235. MATH

    :D HOW DO U DO 7C4

    asked by pAvLeEn
  236. math

    3{[3(x-5)+15]-[3(4x-3) +3]}

    asked by Lori
  237. social studies

    Evaluate the importance of geography in :a) enocouraging exploration of the West and the spread of the fur trade; and b) hindering these activities.

    asked by chooey
  238. Algebra 1

    I forgot how to do this problems. Help? 5-|x+4| ≤ -3 ≤ is less than or equal to sign Thanks!

    asked by Skye
  239. science gr.5

    what 3 things would i miss the most if there were no pulleys and gears in the world?

    asked by alex
  240. math

    is each ordered pair a solution of the given system? write yes or no. y=6x+12 2x-y=4 (-4,-12)

    asked by Anonymous
  241. physics 101

    explain rocket propulsion in terms of conservation of momentum

    asked by lance
  242. English

    Can you please tell me if these sentences are possible? Thank you very much in advance. 1) Are the following adjectives related to weather possible: What's the weather like? It's wet/damp. It's foggy/hazy/misty (are they synonyms?) It's

    asked by Franco
  243. st marys

    what is a column

    asked by pauline