Questions Asked on
April 15, 2010

  1. chemistry

    what is the boiling point that contains 3.15 moles of ethylene C2H6O2 and 250.0g of H2O? answer should end in degree's celcius a) 1.03 C b) 93.55 C c) 106.45 C d) 6.45 C e) 103.44 C

    asked by brandi r
  2. math

    evaluate: cos (arc sin (4/5) - arc tan 2) with out using a calc.

    asked by krista
  3. Phsyics

    The center of a 1.10km diameter spherical pocket of oil is 1.10km beneath the Earth's surface. Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a uniform Earth? Assume the density of oil is . Express

    asked by Mikhail
  4. ochem

    What's an equation of the hydrolysis of one ester group in tannins by CaCO3?

    asked by kim
  5. Physics

    It can be shown that for a uniform sphere the force of gravity at a point inside the sphere depends only on the mass closer to the center than that point. The net force of gravity due to points outside the radius of the point cancels. How far would you

    asked by Mikhail
  6. Physics

    In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016 and a radius of 8.50 . What is the speed of a satellite orbiting 4.70km above the surface? What is the escape speed from the asteroid?

    asked by Mikhail
  7. MATH

    Find the amount of compound interest earned in an account that opens with $21,000, earns 5.5% interest compounded daily, and is held for 20 years. Assume 360 days in a year. (Round your answer to the nearest cent.)

    asked by Anonymous
  8. Trig

    Sin theta = 4/5 i got 53.1 as an answer but on my answer sheet is also has 126.9 How do i get that 126.9?

    asked by Dho
  9. ,math

    Find the number of subsets of the given set. {math, English, history, science, art} Is this correct: 1. {} 2. {math} 3. {English} 4. {history} 5. {science} 6. {art} 7. {m, E} 8. {m,h} 9. {m, s} 10. {m, a} 11. {e, h} 12. {e, s} 13. {e, a} 14. {h, s) 15. {h,

    asked by bwb
  10. Osciallations

    A partridge of mass 5.01kg is suspended from a pear tree by an ideal spring of negligible mass. When the partridge is pulled down 0.100 m below its equilibrium position and released, it vibrates with a period of 4.20s . What is its speed as it passes

    asked by Mikhail
  11. Religion

    Origen was the first Bishop of ______in what year. Studying for midterm and this is one of the questions I can't find an answer to

    asked by Maria
  12. accounting

    What is the impact on the financial statements of missing a step when completing the accounting cycle?

    asked by lisa
  13. english

    identify two arguments outine the premise and conclusions

    asked by Anonymous
  14. nutrition

    What are some of the health problems associated with undernutrition? Explain the cycle of malnutrition. Who does it impact?

    asked by Anonymous
  15. statistics

    An ecologist uses the line, based on 13 colonies, to predict how many birds will join another colony, to which 54% of the adults from the previous year return. What is the prediction? Give your answer to two decimal places, and use the regression line

    asked by applebottom
  16. Osciallations

    A harmonic oscillator has mass 0.530km and an ideal spring with force constant 146N/m . Find the period, frequency, and angular frequency.

    asked by jack
  17. Maths

    the histories and development of Hindu-Arabic number system and the egyptain number system? plez.. i'm so confuse with these i need good explanation about this two system

    asked by LAy
  18. Osciallations

    You pull a simple pendulum of length 0.237m to the side through an angle of 3.50 degrees and release it. How much time does it take the pendulum bob to reach its highest speed? Take free fall acceleration to be = 9.80 . How much time does it take if the

    asked by abby
  19. statistics

    Information given:the distribution of male head circumference (HC) is normal with a mean of 56cm and a standard deviation of 1.8cm first question -the prob that HC of a random chosen man is larger than 57.8cm is? Work: pr(x)>57.8cm z=(57.8-56)=1.8--->.9641

    asked by UPD
  20. statistics

    Info given:With a random sample of 9 men. let X denote the number of men with head circumference larger than 57.8cm. the normal mean=56cm and standard dev=1.8cm. So this is a binomal dis- they ask; For X, calculate pr(X=2)? second part, Let X denote the

    asked by UPD
  21. Finance

    If I had put 50,000 dollars away today in some kind of cd or money market account, and did not touch it or the interest for 20 yrs, how much money would I have, same ? with 80,000 please help

    asked by samantha
  22. MATH

    A set of numbers has “the triple-sum property” (or TSP) if there exist three numbers in the set whose sum is also in the set. [Repetitions are allowed.] For example, the set U = {2, 3, 7} has TSP since 2 + 2 + 3 = 7, while V = {2, 3, 10} fails to have

    asked by DAVID
  23. math

    Suppose 100 dots are arranged in a square 10 × 10 array, and each dot is colored red or blue. (a) Prove that this array must contain a “monochromatic” rectangle. That is, no matter how the red and blue colors are assigned, there must be either a set

    asked by Tyler
  24. Integers

    Suppose a1, a2, . . . , an is a list of n numbers with the following properties: The sum of those n numbers is 500. The sum of the smallest three of those numbers is 48. The sum of the largest two of those numbers is 35. (Note: There might be some

    asked by Rock
  25. Math

    Suppose p and q are odd integers. (a) Show that the quadratic equation x2 + px + q = 0 has no rational roots. (A number á is a “root” of that equation if: á2 + pá + q = 0. A number is rational if it is expressible as m/n for some integers m and n. )

    asked by Tiny
  26. Algebra

    A ¡§lattice point¡¨ has integer coordinates. Then, A = (m, n) is a lattice point if both m and n are integers. Let¡¦s call a point P = (x, y) ¡§generic¡¦¡¦ if all the distances from P to lattice points are different. With some algebraic work, I

    asked by Shrek
  27. Math

    What numbers can be expressed as an alternating-sum of an increasing sequence of powers of 2 ? To form such a sum, choose a subset of the sequence 1, 2, 4, 8, 16, 32, 64, . . . (these are the powers of 2). List the numbers in that subset in increasing

    asked by CSI
  28. Pre Calculus

    Establish the following identity Sin2x/1+cos2x=tanx

    asked by Tyler
  29. Pre Calculus

    Establish the identity tanx/2=cscx-cotx

    asked by Peter
  30. Pre Calculus

    Establish the identity (cosx/2-sinx/2)^2=1-sin x

    asked by Peter
  31. Pre Calculus

    Establish the following identity sin 2x/sinx - cos2x/cosx = secx

    asked by Tyler
  32. Pre Calculus

    Establish the following identity tan(x+pi/4)=1+tanx/1-tanx

    asked by Tyler
  33. home economics

    uses of computer in home economics

    asked by Anonymous
  34. Chemistry

    Hydrogen peroxide, H2O2, solution can be purchased in drug stores and used as an antiseptic. A sample of such a solution weighing 1.00 grams was acidified with sulfuric acid and titrated with .02000 M solution of KMnO4. The unbalanced reaction is H2O2(aq)

    asked by HELP!!!
  35. Chemistry

    Using ƒ´Hfo and So values, calculate the standard molar free energy of formation for each of the following: a. CuSO4(s) b. ZnSO4(s

    asked by Kristen
  36. hairdressing

    descibe curved asin hairdressing

    asked by Anonymous
  37. chemistry

    2. Methanol, CH3OH, is used as fuel in race cars. This liquid fuel can be synthesized using the following process C(s)+ ½ O2(g) + 2H2(g)  CH3OH(l) Calculate delta G using the deta Gf of the reaction. Calculate Kp. What is the relation between the

    asked by Kristen
  38. hairdressing

    descibe curved lines

    asked by Anonymous
  39. health

    Identify and describe three causes for the increasing costs of health care

    asked by robin
  40. chemistry check my work

    C7H6O3+CH3OH→C8H8O3+H2O In any experiment, 1.50g of salicyclic acid is reacted with 11.20g of methanol. The yield of methyl salicylate, C8H8O3, is 1.31g. What is the percent yield? percent is 77.l1% is this correct?

    asked by Molly
  41. Ag Bio

    I'm stuck on a few questions. If you can just answer what you can- 25. Describe the role of an operon in a prokaryotic cell, and give an example of how an operon works. 31. The word transcribe means "to write out," and the word translate means "to express

    asked by Abby
  42. english

    Which of the following sentences best represents culturally unbiased writing?

    asked by bruno
  43. psychology

    what is the effect of enrolling in the university on our social life ?

    asked by Ehab
  44. chemistry

    How many milliliters of NH3 (at STP) are needed to react with 45.0 mL of NO2 (at STP) according to the equation. Can someone please... help me? a) 45.0 mL b) 27.5 mL c) 33.8 mL d) 60.0 mL

    asked by Diana
  45. physics

    the position of the box 3 seconds after the oscillations have started

    asked by Anonymous
  46. math

    Which of the following conditions does not ensure that a quadrilateral is a parallelogram? Answer choice: a) the diagonals bisect each other b) both pair of opposite sides are parallel C)a pair of opposite angles are congruent d) all of the above

    asked by nicole
  47. math

    Which of the following conditions does not ensure that a quadrilateral is a parallelogram? Answer choice: a) the diagonals bisect each other b) both pair of opposite sides are parallel C)a pair of opposite angles are congruent d) all of the above

    asked by nicole
  48. English

    I write again,bcause yesterdeay nobody could really help we with this homework :( Hello everybody! Today a I have to write a complain letter to "my"boss.I should write about my difficulties,and about what's bothering me. In the letter I should propose a

    asked by Lulu
  49. Algebra

    Please help me I have been trying to get the answer and for some reason is not coming up correct can someone please help. evaluate the polynomial for x=1 3x^2-4x+6

    asked by Ross
  50. ethinic culture

    how has African slavery influenced our contemporary society

    asked by toria
  51. accounting

    I just have a small question about how to calculate the shares of common stocks, no par having the information below, thanks. The following stockholders' equity accounts arranged alphabetically are in the ledger of Tyner Corporation at December 31, 2010.

    asked by mayasa
  52. geometry

    building a ramp that will be in the shape of a perfect right angle triangle vertical height will be 10 feet and horizontal base will be 15 feet what is the lenght of downward sloping side or the ramp

    asked by sharon
  53. College Chemistry

    Consider the evaporation of methanol at 25.0 C: CH3OH(l)--->CH3OH(g) Delta G= 4.3 kJ Find Delta G at 25.0 C under the following nonstandard conditions: Pressure of CH3OH= 108.0 mmHg.

    asked by Kyle
  54. Health Care

    What are three issues faced by the aging population that you believe to be a problem? Why do you see these as problems? Are there any agencies in your community that address these problems? If so, what are they? If not, why do you think they are not being

    asked by Falguni Patel
  55. Chemistry

    How many grams of sodium nitrate, NaNO3 are needed to make 250 ml of .500 M solution? MM of NaNO3 is 85 g/mol?? I'm not sure which equation to use, help please?

    asked by Nick Bones
  56. Organic chemistry

    I know that sulfuric acid acts as a catalyst and removes water to help shift the equilibrium to form more productin an esterification. Can someone tell me if it is consumed? My thought is no. If I am right, can someone tell me why it is not consumed. If

    asked by TJ
  57. biology

    The structure of chromosomes is best explained as DNA broken apart into separate genes. extended to form very long, thin molecules. wrapped tightly around associated proteins. coiled up into a ball.

    asked by ballamoney1
  58. Health Care

    I posted my question 40 minuts ago, how do I find out my answer? where would I will go to look for it?

    asked by Falguni Patel
  59. biology

    The synthesis (S) phase is characterized by DNA replication. cell division. replication of mitochondria and other organelles. the division of cytoplasm.

    asked by ballamoney1
  60. writing

    i need help finding a title for my paper. im writing it about my relationship to a place and i wrote it about my relationship to this small town in new york. i talked about a creek and horse races and how its my second home, but i cant think of a creative

    asked by nat
  61. geometry

    A tourist in France wants to visit 5 different cities. If the route is randomly selected, what is the probability that she will visit the cities in alphabetical order? Answer choice: a)120 b)1/5 c)1/120 d)1/25

    asked by nicole
  62. HCA/220

    how does blood clotting, immune response, allergic reaction and hormone resonse relate to each other

    asked by Anonymous
  63. 10th grade

    geometry in Triangle xyz, ab is a midsegment of xyz. ax is = 26, bz=36 ay is congruent to ax and bx is congruent ot bz. I get that side yx = 52 and side yz is equal to 72 how do you get the value of side yz? is it 72?

    asked by Anonymous
  64. math

    How do you find the perimeter of a square with all sides equal 15 inches?

    asked by Naomi
  65. physics

    The average lifetime of muons at rest is 2.20 us. A laboratory measurement on muons traveling in a beam emerging from a particle accelerator yields an average muon lifetime of 19.668 us. What is the speed of the muons in the laboratory?

    asked by Andy
  66. biology

    Carbohydrates and lipids have many carbon-hydrogen bonds; therefore, they both store energy in these bonds. are easily dissolved in water. dissolve only in vinegar. exist only in cells of plants.

    asked by ballamoney1
  67. biology

    Which of the following is true about the relationship between energy and chemical reactions? Activation energy is required for a chemical reaction to occur. Activitation energy is not necessary in a chemical reaction which releases energy. Chemical bonds

    asked by ballamoney1
  68. biology

    Internal membranes play important roles in protein production and processing except they do NOT anchor ribosomes in place. transport substances to different areas. contain the hereditary information for the protein. modify proteins to go into vesicles.

    asked by ballamoney1
  69. geometry

    11. Infinitely many different sectors can be cut from a circular piece of paper with a 12-cm radius, and any such sector can be fashioned into a paper cone with a 12-cm slant height. (a) Show that the volume of the cone produced by the 180-degree sector is

    asked by Sarah
  70. Geometry

    A sphere consists of all the points that are 5 units from its center (2, 3,−6). Write an equation that describes this sphere. Does the sphere intersect the xy-plane? Explain.

    asked by Sarah
  71. Physics

    Two 0.20 g metal spheres are hung from a common point by non-conducting threads that are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threads is 20 degrees. How much charge was

    asked by Newberger
  72. Physics

    A speed boat at rest begins to move in a straight line from a dock. The boat has a constant acceleration of +3.0 m/s squared. Attached to the dock is a siren that is producing a 755 Hz tone. If the air temperature is 20 degrees C, what is the frequency of

    asked by Lenzen
  73. chemistry

    You need to find the number of moles in 5mL of a substance given the density and the molecular weight. How do you do this?

    asked by Max
  74. Physics

    a) What is the tangential acceleration of a bug on the rim of a 6in. diameter disk if the disk moves from rest to an angular speed of 79 rev/min in 5 seconds? b) One second after the bug starts from rest, what is its tangential acceleration? What is its

    asked by Elizabeth
  75. Math

    A boat is sailing due east parallel to the shoreline at a speed of 10 miles per hour. At a given time the bearing to the lighthouse is S 70 degrees E, and 15 minutes later the bearing is S 63 degrees E. Find the distance from the boat to the shoreline if

    asked by Abbey
  76. Chemistry

    Hi, I posted a question yesterday : A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of 0.157 of the compound produced 0.213g CO2 and 0.0310 g H20. In another experiment, it is found that 0.103g of the compound produces 0.0230 g

    asked by Anonymous
  77. Math

    will someone just double check my answers, please. Identify which types of sampling is used:random,stratified, systematic,convenience. 1. a sample consists of every 20th student who leaves the bookstore. answer:systematic 2. a pollster uses a computer to

    asked by Charlene
  78. English

    Thank you very much for helping me! Here is the lyrics of the song I have to rephrase. You know parents are the same No matter time nor place They don't understand that us kids Are going to make some mistakes So to you other kids all across the land

    asked by Franco
  79. Physics

    If a 5.40g bullet is fired horizontally into a suspended(hanging)10kg block of wood and causes the block, with bullet embedded, to move off with horizontal velocity of 0.30m/s, What is the impact velocity of the bullet?

    asked by Kirsten
  80. Chemistry

    Maleic acid is an organic compound composed of 41.39% C, 3.47% H, and the rest oxygen. If 0.271 mol of maleic acid has a mass of 31.4 g, what are the empirical and molecular formulas of maleic acid? My work: C: 41.39 g x (1 mol/12.01 g) = 3.44629 = 1 H:

    asked by Anonymous
  81. algebra

    Tree diagrams/ counting principles/ scp question: Two cards are drawn in succesion and with out replacement from a deck of 52 cards. find the following a. the number of ways in which we can obtain the ace of spades and the king of hearts, in that order. b.

    asked by Jennifer
  82. Math

    Hi! Can someone solve these for me pls? Y=10/x y=1/2x+4 solve for x and y thanks

    asked by Me
  83. Math

    I hate word problems! Can anyone just change this Following word prob to equations pls. I can do the rest! Sam invested $4500, part at 7%, the rest at 8 1/2%. After one year, the interest earned on 7% investment was $150 less than the interest earned on

    asked by Me
  84. ETH125 cultural diversity

    With gaming such a fresh, and practically always fresh, issue between the Native Americans and the federal government, does the federal government ( or have they in the past) taxed the Native American casinos that are not on reservations?

    asked by Cindy
  85. math

    I am not totally understanding this process. Factor Completely: x^5y^2 - x^4y^2 - 2x^3y^2

    asked by marco
  86. dps

    how to find a (x1^3n+x2^3n) if x1 and x2 are the root of quadratic equation x^2+x+1

    asked by vikash
  87. Project Management

    How does the project audit differ from the performance measurement control system?

    asked by Jerry
  88. engineering

    in a proposed telesurgery application the image will be transmitted at 2*10^8m/s ovwe a roundtrip distance of 740km, the compression and decompression process for the images will take a total of 60m/s. what is the largest permissible value for the sources

    asked by Kenji86
  89. Physics

    How do you find the phase constant of the oscillation on a graph.

    asked by Tyler
  90. engineering

    a data with an availability of 93.4% is accessed via a network with an availability of 99.2%. on average for how much time in a week would a user be unable to retrive data from database.

    asked by Kenji86
  91. 11th grade

    A flight attendant pulls her 70.0 N flight bag a distance of 263 m along a level airport floor at a constant speed. The force she exerts is 41.0 N at an angle of 52.0° above the horizontal. (a) Find the work she does on the flight bag. (b) Find the work

    asked by brittany
  92. History

    We're learning about Roman Supremacy. What was the function of art and architecture in the Roman Empire? Thanks!

    asked by Bee
  93. Brain Teaser

    When Professor Sum was asked by Mr. Little how many students were in his classes, he answered, “All of them study either languages, physics, or not at all. One-half of them study languages only, one-fourth of them study French, one-seventh of them study

    asked by dan
  94. GCF Math Check

    Can you see if my answers are correct? Directions find the GCF: (I did the factor tree for each) 40; 2^3 times 5 128; 2^7 GCF: 2 90; 3^2 times 2 times 5 105; 5 times 3 times 7 180; 3^2 times 2^2 times 5 GCF: 5 3x^3; what is that suppose to be 6x; 2 times 3

    asked by Courtney
  95. Calculate the oscillation frequency f of the H2 mo

    When displaced from equilibrium by a small amount, the two hydrogen atoms in an \rm H_{2} molecule are acted on by a restoring force F_{x}=-k_1 x with k_1 = 510 N/m. Calculate the oscillation frequency f of the H2 molecule. Use m_eff = m/2 as the

    asked by Tyler
  96. Geometry

    The measure of the shorter parallel side of B is 6 inches and that of the longer side is 8 inches. The height of that figure is 10 inches. What is the area?

    asked by Patricia
  97. Math

    120 Are the last two digits divisible by 4 Are the last three digits divisble by 8 Are the sum of the digits divisible by 9 1048 Are the last three digits divisible by 8

    asked by Scott
  98. algebra II

    I have been working on this problem for a while and for some reason I don't come up with the answer. a^2+b^2=c^2 I came up with 2square root 5 please tell me if this is correct. In a right triangle, Find the length of the side not given b=1, c=square root

    asked by betty
  99. physics

    A thin cylinder of copper has a mass m=50g and is 1 meter long. what is the minimum current that has to flow through the cylinder for it to levitate in a magnetic field of 0.1T. would i use B=uI/2pi(d) im confused about what d is and how the mass relates

    asked by lauren
  100. algebra II

    I have been working on this problem for a while and for some reason I don't come up with the answer. a^2+b^2=c^2 I came up with 2square root 5 please tell me if this is correct. In a right triangle, Find the length of the side not given b=1, c=square root

    asked by betty
  101. oscillation

    An object with mass 0.250 kg is acted on by an elastic restoring force with force constant 10.8 N/m. The object is set into oscillation with an initial potential energy of 0.150 J and an initial kinetic energy of 6.00×10−2 J. What is the amplitude of

    asked by Tyler
  102. PHYSICS WORK PROBLEM due tonight!! please help!

    A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x = 0.93 m from the end of the track after falling a vertical distance h2 = 1.18 m from the end of

    asked by brittany
  103. another physics problem that i dont understnad..

    An 58.0 N box of clothes is pulled 5.2 m up a 30.0° ramp by a force of 95 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.

    asked by brittany
  104. language arts

    words that ryme with kite

    asked by kenneth
  105. Algebra

    How do you solve this system to find x and y? what is x and y? 3x + 4y = 8 y = 3x + 17

    asked by Larura
  106. Geology

    If a rock contains an isotope with a half live of 600 million years, and 0.5 half lives have elapsed since the rock formed, how old is the rock in millions of years?

    asked by Dana
  107. Discrete Math

    True or False ∅ ⊆ {∅}.

    asked by Ashley Everette
  108. Math(Please check)

    I am trying to find the standard form of this equation for an ellipse. 9x^2 + 4y^2 - 36x + 8y + 31 = 0 First I grouped the x and y's together. 9x^2 - 36x + ? + 4y^2 + 8y + ? = -31 + ? + ? Then I factored the 9 and 4. 9(x^2-4x+4) + 4(x^2+2x+1) = -31+36+4

    asked by Abbey
  109. Discrete Math

    Calculate R(4) where the recursively defined sequence R is given by: R(1) = 2, R(2) = 3, and, R(n) = R(n − 1) + 2R(n − 2) + n, n > 2

    asked by Ashley Everette
  110. math

    find the percent increase in the population between 1950-2000. 965,000,000 in 1950 2251,000,000 in 2000 I tink it is 2251 / 965 = 2.33 = 233% Is ths right or did I do my math wrong

    asked by Kyle
  111. Discrete Math

    In the questions below determine the size (i.e. cardinality) of the set. • {x|x ∈ N, x2 < 10} • P({a,b,c,d,e }) where P denotes the Power set • A × B where A = {1, 2, 3, 4, 5} and B = {1, 2, 3} • {x|x ∈ Z, 9x2 −1 = 0} • A × B where A =

    asked by Ashley Everette
  112. Math

    A die is rolled once. What is the probability of getting number 5?

    asked by Dylan
  113. physics...

    Tarzan swings on a 26.2 m long vine initially inclined at an angle of 39° from the vertical. (a) What is his speed at the bottom of the swing if he starts from rest? (b) What is his speed at the bottom of the swing if he starts with an initial speed of

    asked by brittany
  114. fiance

    what is the pv of an annuity that promises to pay you $500 per year for the nest 20 years if the interest rate is 7%?

    asked by Pat
  115. Math

    Find an equation for the ellipse. center:(3,2) a=3c Foci:(1,2)(5,2) h=3 k=2 I do not know where to start.

    asked by Abbey
  116. math

    how do you solve (and show your work for): 5-2x=7

    asked by martha
  117. chemistry

    What is sulute

    asked by Andisani chauke
  118. algebra

    in graphing quadratic functions what are the ordered pairs for y=x*x+2

    asked by Jenny
  119. finance

    what is the pv of an annuity due that promises to pay you $500 per yeaR FOR THE NExt 20 years if the interest rate is 7%?

    asked by Pat
  120. Math

    find the vertex of (x+1)^2-2

    asked by jay
  121. english

    using these words : animate, dogged, gravity,indomitable,retaliate 1.This is what people do by dettling a score, getting even, and given other people a dose of their own medicine. which word describes this

    asked by melissa
  122. SCI/275

    Can someone please help me with week 1 discussion question 2?

    asked by Lawnette Webber
  123. Math

    Solve this equation log8 (x2 - 7x) = 1

    asked by Anonymous
  124. geometry

    the scale factor of 2 similar polygons is 2:3. The perimeter of the larger one is 150 centimeters, what is the parameter of the smaller one

    asked by Jennifer
  125. Geometry

    1. In the formula -2x-y=7, what is the slope? 2. An isoceles trapezoid has____pair(s) of parallel sides. 3. Is a triangle with sides of 6,8, and 10, a right triangle? yes or no. 4.Find the area of the rectangle(30cm, 40cm,40cm. 5. Use factoring to simplify

    asked by Patricia
  126. physics!!

    A flight attendant pulls her 70.0 N flight bag a distance of 263 m along a level airport floor at a constant speed. The force she exerts is 41.0 N at an angle of 52.0° above the horizontal. (b) Find the work done by the force of friction on the flight

    asked by brittany
  127. Math

    I am trying to find the standard form of this equation for an ellipse. 9x^2 + 4y^2 - 36x + 8y + 31 = 0 First I grouped the x and y's together. 9x^2 - 36x + ? + 4y^2 + 8y + ? = -31 + ? + ? Then I factored the 9 and 4. 9(x^2-4x+4) + 4(x^2+2x+1) = -31+36+4

    asked by Abbey
  128. physics problem that i neeeed help with!

    A person lifts a 3.8 kg cement block a vertical distance 0.9 m and then carries the block horizontally a distance 7.3 m. Determine the work done by the person and by the force of gravity in this process. ? J (by person) ? J (by force of gravity)

    asked by brittany
  129. physics

    A 2.40 kg object is hanging from the end of a vertical spring. The spring constant is 53.0 N/m. The object is pulled 0.200 m downward and released from rest. Complete the table below by calculating the translational kinetic energy, the gravitational

    asked by mike
  130. world history

    what single factor-geography, culture or economics- best explains why japan and china were not colonized by europeans in the same way as was africa?

    asked by ANNETTA
  131. math

    Vernon Wells hits a baseball that travels for 142m before it lands. The flight of the ball can be modelled by a quadratic function in which x is the horizontal distance the ball has travelled away from vernon, and h(x) is the height of ther ball at that

    asked by Taha
  132. Math

    A vase had 4 yellow flowers, 4 red flowers and 8 blue flowers. Donna takes one out, smells it and returns it to the vase. What is the probabilty she picked a red flower? What is the probabilty she picked a blue flower? Is it red 4:16 and blue 8:16?

    asked by Dylan
  133. math

    how many circleswith radius 2 cm will have the sametotal area as a circle with the radius 4 cm ? please help i am confused

    asked by Katherine
  134. Math

    How do you find the axis of symmetry for this problem: -2(x+2)^2-1

    asked by Bree'Anna
  135. math

    what is the area of the largest circle that will fit in a square with area 64 cm squared

    asked by Katherine
  136. Chemistry

    How do I decide whether something is polar or not?

    asked by Megan
  137. Math

    How to solve x^6 3x^3 2=0

    asked by Samantha
  138. last physics problem!

    A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x = 0.93 m from the end of the track after falling a vertical distance h2 = 1.18 m from the end of

    asked by brittany
  139. Math

    log 6.44 + 3 log x - log x^2 = log 6.44 + 3 =?

    asked by Anonymous
  140. science

    How do plants vary in their efficiency at producing joules for human consumption?

    asked by kelly
  141. math

    Can you help me solve this solving quadratic equation.x^2-x-1=0

    asked by lauren
  142. it/205

    o What is the difference between IT and information systems? Describe some functions of information systems.

    asked by robbie
  143. chemistry

    For the following reaction: 2NH3 ----> N2 + 3H3 6.42 moles of NH3 were placed in a 7.4 L flask and allowed to come to equilibrium. 3.60 moles of NH3 remain at equilibrium. Calculate Kc for the reaction.

    asked by Sue
  144. math

    what is the area of the largest circle that will fit in a square with area 64 cm squared please help me its confusing

    asked by Katherine
  145. chemistry

    For the following reaction: 2NH3 ----> N2 + 3H3 6.42 moles of NH3 were placed in a 7.4 L flask and allowed to come to equilibrium. 3.60 moles of NH3 remain at equilibrium. Calculate Kc for the reaction.

    asked by Sue
  146. chemistry

    For the equilibrium system: H2 + F2 2HF Kc = 230 If 5.80 mol of hydrogen gas and 5.80 mole are added to a 1.00 L flask what will be the concentration of HF at equilibrium?

    asked by Sue
  147. chemistry

    What would be the result if 5.0 L of hydrogen were burned with 2.0 L of oxygen in a closed containner?

    asked by Myriam
  148. Organic chemistry

    I know that sulfuric acid acts as a catalyst and removes water to help shift the equilibrium to form more productin an esterification. Can someone tell me if it is consumed? My thought is no. If I am right, can someone tell me why it is not consumed. If

    asked by Dakota
  149. Math

    Nikki is planning a program of recordings by Chicago jazz clarinetist Benny Goodman.The program will include:BG and the Big Tea in NYC, The Birth of Swing, after You've gone, and Avalon. If Avalon is to be first,how many different orders are possible?

    asked by Kayla
  150. Math analysis

    How do I simplify cscx-cotxcosx?

    asked by Lauren
  151. college

    What is the concentration of a solution of HCL in which a 10.0 mL sample of acid required 50.0 mL of 0.150 M NaOH for neutralization?

    asked by Anonymous
  152. language please check these

    ARE THESE CORRECT(do they make sense to u): -he is a columnist -the remedy is working -you will receive a bonous -i don't know a reason -i bought an anniversary gift -the jewel is expensive -may i borrow an almanac -kate wants the checkersthe signature was

    asked by martin
  153. math

    When a soccer ball is kicked with a vertical speed of 25 m/s its height, h metres, after t seconds is given by the equation h=-5t^2+25t a) how long after it is kicked is the soccer ball at a height of 30 m ? b) How long is the soccer ball in the air?

    asked by Joe
  154. Math Analysis

    How do I simpllify 1-sin^2x/1-cos^2x?

    asked by Lauren
  155. Trigonometry

    How do I find the value of sin(a-b) if tana=4/3, cotb=5/12, 0

    asked by Lauren
  156. language check please

    SUFFIXES: -dairy=dairies -ability=abilities -cry=cries -journey=journies -liberty=liberties -dictionary=dictionaries -worry=worries -cherry=cherries -lady=ladies -supply=supplies -lazy=lazyness -penney=pennies

    asked by martina
  157. Math

    If x is an angle in the first quadrant and cscx = 3 find the exact value of cos 2x

    asked by Nicole
  158. calculus

    Three ships are at points P, Q, and R such that PQ=2km PR=7 km, and

    asked by lALA
  159. math

    Find the number of subsets of the given set. {math, English, history, science, art} Is this correct: 1. {} 2. {math} 3. {English} 4. {history} 5. {science} 6. {art} 7. {m, E} 8. {m,h} 9. {m, s} 10. {m, a} 11. {e, h} 12. {e, s} 13. {e, a} 14. {h, s) 15. {h,

    asked by bwb
  160. calculus

    Two roads intersect at an angle of 48º. A car and truck collide at the intersection, and then leave the scene of the accident. The car travels at 100 km h down one road, while the truck goes 80 km h down the other road. Fifteen minutes after the accident,

    asked by lALA
  161. math

    List all the subsets of S. You may use "C" for chocolate, "V" for vanilla, and "M" for mint. 1. {} 2. C 3. V 4. M 5. CV 6. CM 7. VC 8. VM 9. MC 10.MV 11. CVM Is this correct.

    asked by bb
  162. math

    4x^3y-20x^2y+16y

    asked by tia
  163. science help please

    i don't understant what sexual reproduction is and what asexual reproduction is could please help me understand

    asked by anna
  164. math

    If Cosinex = 4/5 and x has its terminal side in quadrant lV, find the exact value of tangent 2x

    asked by Jaslin
  165. chemistry

    We have two liters of a buffer solution that is 0.10 M in CH3COOH and 0.10 M in NaCH3COO. How many moles of solid NaOH are to be added to this solution to increase its pH by 5.0 percent? Assume no volume change due to the addition of solid NaOH. I have the

    asked by Bharg
  166. bus. calc

    Use the rectangle (mid-point) rule, with n=3 to approximate the integral of 2x-x^2 from -6 to 0.

    asked by sam
  167. Chemistry

    A certain Geiger counter is known to respond to only 1 of every 1000 radiation events from a sample. Calculate the activity of each radioactive source in curies, given the following data. My text barely attempts to explain how to do this problem, and there

    asked by Trixie
  168. PHYSICS Gr.11

    A bicycle of mass 14.6 kg and a rider of mass 50kg generate a net force of 12N.How fast are they going after 2.0 seconds?

    asked by nini
  169. writing

    what is the difference between arab and muslims

    asked by cam
  170. language ms.sue could u please check these thanks

    suffixes empty-empties monkey-monkeys security-securities holiday-holidays pity-pities friendly-i don't know this one strawberry-strawberries delay-delays birthday-birthdays say-says vocabulary-vocabularies conspiracy-conspiracies memory-memories

    asked by me
  171. PHYSICS Gr. 11

    A of car of mass 2000 kg has a force forward due to the engine of 4500N and experiences an air resistance of 1500N. IF we ignore the friction with the road, what is the acceleration of this car? thanx :)

    asked by Anonymous
  172. writing

    since 911, what are some changes the united states has made to policy concerning arabs and muslims treatment

    asked by cam
  173. writing

    what are two characteristics of orientalism

    asked by cam
  174. language

    victory-victories baby-babies country-countries multiply-don't understant enemy-enemies marry-married highway-highways tiny-don't understant thirsty-thirstiness? carry-carries family-familys justify-justifies pray-prayed vary-varies dry-dryness

    asked by anna
  175. Social Studies/History

    How did Southerners and Northerners differ in their understanding of "majority rule"? Thanks!

    asked by Anonymous
  176. math

    how much fencing is needed to close a circular garden whose radius is 4.5

    asked by Aaliyah
  177. Math

    You are playing a card game with a full deck of 52 cards. You win if you draw a red card that is a multiple of 5. What are your chances of winning on the first draw?

    asked by Mikayla
  178. math

    Solve 2cosx-sin^x +2 =0 for all real values of x

    asked by Alex
  179. physics

    A bicycle of mass 14.6 kg and a rider of mass 50kg generate a net force of 12N.How fast are they going after 2.0 seconds?

    asked by nelly
  180. Math

    Can you see if my answers are correct? Directions find the GCF: (I did the factor tree for each) 40; 2^3 times 5 128; 2^7 GCF: 2 90; 3^2 times 2 times 5 105; 5 times 3 times 7 180; 3^2 times 2^2 times 5 GCF: 5 3x^3; what is that suppose to be 6x; 2 times 3

    asked by Courtney
  181. Math

    120 Are the last two digits divisible by 4 Are the last three digits divisble by 8 Are the sum of the digits divisible by 9 1048 Are the last three digits divisible by 8

    asked by Scott
  182. Chemistry

    When a sample of PCl5(g) (0.02087 mol/L) is placed in 83.00 L reaction vessel at 491.0 °C and allowed to come to equilibrium the mixture contains 103.0 grams of PCl3(g). What is the equilibrium concentration (mol/L) of Cl2(g)? PCl5(g) = PCl3(g)+Cl2(g)

    asked by Drew
  183. Research Writing

    I have to pick a topic and list argument and counter-argument for a research paper (com 220 class). I would like to write about the death penalty, I just need help chosing a pro and con to write about. I believe I need more detail than just saying my topic

    asked by Reshi
  184. Algebra

    Without writing them all out, what is the number of subsets of set A = {tongue, ear, mouth, eye, nose, cheek, forehead, neck, shoulder}?

    asked by Brad
  185. language

    victory-victories multiply-multiplies tiny-don't know thirsty-thirstness? justify-justified pray-prays or prayed dry-dryness anniversary-anniversaries? body-bodies rainy-not really sure comedy-comedies crazy-crazyness industry-industries decay-decayed?

    asked by anna
  186. MATH

    WHAT IS A COORDINATE PLANE?

    asked by PLEASE HELP!!!!!!
  187. biology

    why is the fovea important?

    asked by Mary
  188. algebra

    83% of 335 =

    asked by jamie
  189. college philosophy

    I'm utterly lost!! What are the phenomenal and noumenal realities according to Kant?

    asked by Alex Casimir
  190. English

    I'm doing a persuasive speech on why people should donate blood. What would a good title be?

    asked by Lindsey
  191. Chemistry

    When a sample of NO2(g) (849.9 grams) is placed in 390.0 L reaction vessel at 961.0 K and allowed to come to equilibrium the mixture contains 248.2 grams of NO(g). What is the concentration (mol/L) of NO2(g)? 2NO2(g) = 2NO(g)+O2(g) I keep getting .0212 or

    asked by Amphee
  192. physics

    A stone is dropped into a deep canyon and is heard to strike the bottom 15s after release. How deep is the canyon? The speed of sound waves in air is 343 m/s and the acceleration of gravity is 9.8m/s^2. Answer in units of m.

    asked by Anonymous
  193. Physics

    A boat is rowed due North at 7.0 km/h directly across a river that flows due East at 4.0 km/h. Find the boat's resultant speed.

    asked by Tony
  194. math

    a series of numbers starts with 2.each number in the series is two times as great as the number before it.what is the sixth number in the series.

    asked by james
  195. math

    the graphs of the equations y = x to da 2nd and x = 2 intersect in A.1 point B. 2point C. 3point D. 0point?

    asked by crystal
  196. math

    solve 2cos^2x = square root of three cosx (couldnt find the sign on keyboard sorry) for principal values of x. express the solutions in degrees

    asked by Kathy
  197. 6th grade

    The measure of AB is 4 units, the measure of BC is 5 units and the measure of CD is 12 units. Find the measure of DE?

    asked by Rachael
  198. EGYPT

    I NEED TO KNOW ABOUT EGYPT THESE ARE THE QUESTIONS THAT I HAVE TO ANSWER: -IS THERE RURAL AREAS -IS THERE ANY CONFLICT(RELIGIOUS,SLAVERY ETC.) -IS THERE ANY POLUTION THAT'S ALL THANK U

    asked by KEVIN
  199. math

    the graphs of the equation y = x to the 2nd and x = 2 intersect in A. 1point B. 2point C. 3point D.0point??

    asked by crystal
  200. Statistics

    True or False and explain: If the slope of a regression line is large, the correlation between the variables will also be large. I was thinking false but am now second guesing myself. Thanks.

    asked by Anonymous
  201. nutrient

    you determine that 1 ounce of the peanut butter container contains 115 calories and 9 grams of fat. What percent of the calories come from fat?

    asked by Nika
  202. algebra

    dan has 6 worms on each pole and gary has 11 worms on each pole there are total of 13 poles and 103 how many poles does each guy have

    asked by lashell
  203. Contest-Help-more thoughts

    Hey, I need help coming up with a few lines. Lines you never wantto hear during summer vacaation. ex. that piece of newspaper is the toilet paper I don't know if these are good: -That was our plane money -I thought you were in charge of the kids -These are

    asked by Sara
  204. physics

    a cell membrane is 70 angstrom (A)unit thick if angstrom unit is o.1nm what is the membrane thickness in a. meter b. micrometers

    asked by glyn jane
  205. university of phoenix

    i was trying to find information about finding out if a graph if a function

    asked by ladonna
  206. math 4th grade

    Leah liked to balance objects she found around the house using the science kits she got for Christmas. She found that 3 identical apples and a 5-gram weight exactly balanced with a 50-gram weight.Leah said she could tell how much each apple weighed by

    asked by Mikayla
  207. 12th grade government

    micromanagement of party goals a possible weakness of political parties?

    asked by diane
  208. biology

    where is sound perceived?

    asked by Mary
  209. Stats

    nformation given:the distribution of male head circumference (HC) is normal with a mean of 56cm and a standard deviation of 1.8cm first question -the prob that HC of a random chosen man is larger than 57.8cm is? Work: pr(x)>57.8cm z=(57.8-56)=1.8--->.9641

    asked by UPD
  210. stats

    Info given:With a random sample of 9 men. let X denote the number of men with head circumference larger than 57.8cm. the normal mean=56cm and standard dev=1.8cm. So this is a binomal dis- they ask; For X, calculate pr(X=2)? second part, Let X denote the

    asked by UPD
  211. Social Studies

    Prince Henry had a school for sailors and for the advancement of navigation. Where did he send ships?

    asked by Anya
  212. physics help

    A car travels at 80 km/h on a level road in the positive direction of an x axis. Each tire has a diameter of 66 cm. Relative to a woman riding in the car and in unit-vector notation, what are the velocity at the (a) center, (b) top, and (c) bottom of the

    asked by beav
  213. Social Studies cont.

    Explain a very negative outcome of these explorations.

    asked by Anya
  214. riddle

    How do you make a w made out of pens into a square by moving only 1 pen

    asked by jeremy
  215. physics

    A bicycle of mass 14.6 kg and a rider of mass 50kg generate a net force of 12N.How fast are they going after 2.0 seconds?

    asked by Anonymous
  216. math(advanced algebra&trigonometry)

    the playground at a daycare center has a triangular-shaped sandbox. Tow of the sides measure 20 feet and 14.5 feet and form and included angle of 45 degree. Find the length and the third side of the sandbox to the nearest tenth of a foot.

    asked by Rony
  217. math

    How do you make a w made of 4 pens into a perfect square by only moving one pen

    asked by jeremy
  218. math

    how do i collect the like terms 10p+5q-7p-7q would the answer be 3p,2q

    asked by ladonna
  219. math Did I do it right?

    Calculate using expanded notation, showing steps. 72 + 806 Did I do it right? 72 + 806 (7*10) + (2*1) + (8*100) + (6*1) =(8 * 100) + (7*10) + (6*1)

    asked by bart
  220. Algebra2

    I can't get the right answer to this problem...what am I doing wrong? (2x-4)(x+1)^2 (2x-4)(x^2+2x+2) 2x^3+4x^2+4x-4x^2-8x-8 2x^3-4x-8 but the answer I'm supposed to get is 2x^3-6x-4 what am I doing wrong? Please help! thanks

    asked by Tim
  221. algebra

    How do you do it?:( im stuck! y=-x+4 y=-1/5x

    asked by Rebecca
  222. math

    -18

    asked by ladonna
  223. Algebra

    Diane has one stamp of each positive integer value 1 cent through 9 cents, inclusive. She wants to put 10 cents worth of postage in a row across the top of an envelope. If arrangements of the same stamps in different order are considered different, how

    asked by -Z
  224. English

    Why does Daisy cry over Gatsby's shirts in the "The Great Gatsby" when he is showing her his house. Is there any significance?

    asked by Kathleen
  225. math

    Two chips are selected from a box containing 6 blue chips, 4 red chips, and 3 green chips. The first chip selected is not replaced before the second is drawn. Find P(red, then green).

    asked by brandon
  226. stats

    A human resources manager at a large company wants to estimate the proportion of employees that would be interested in reimbursement for college courses. If she wishes to be 95% confident that her estimate is within 5% of the true proportion, how many

    asked by Chad
  227. English

    1. What was your parents' dream? Mother wanted to be a nurse, and Father wanted to be an architect. 2. What were our parents' dreams? Mother wanted to be a nurse, and Father wanted to be an architect. (Which question is corect? Do we have to use the

    asked by rfvv
  228. social studies

    okay, I have to draw the hierarchy pyramid for Japan. I've looked on google and I can't find it anywhere. Please help!!!!

    asked by Ashley
  229. math

    use fraction bars to find the quotient 2/9 divided by 1/6

    asked by alex
  230. Math Help Please

    How is dividing a polynomial by a binomial similar to or different from the long division you learned in elementary school? Can understanding how to do one kind of division help you with understanding the other kind? What are some examples from real life

    asked by Michelle
  231. chemistry

    How many milliliters of NH3 (at STP) are needed to react with 45.0 mL of NO2 (at STP) according to the equation. Can someone please... help me? 8NO2 (g) + 6NH3 (g) --> 7N2) (g) + 9H2O (g) IS this help? a) 45.0 mL b) 27.5 mL c) 33.8 mL d) 60.0 mL

    asked by Diana
  232. Economics

    The “medical arms race” literature suggests that hospitals compete on the basis of: a. costs. b. costs and price. c. quality. d. (b) and (c) are correct. Is (c) correct?

    asked by Ryan
  233. teenage society today

    Hello everyone, I am an adult going back to school. I have to write a report about the changes in society today, especially in teenagers. So teenagers, my question for you is what is the type of "text messaging language" you are using? What do some of the

    asked by Cindy
  234. Math

    so confused on this. I have answered but want someone to check me. Identify the distribution as symmetric, left-skewed, or right skewed. 1. exam scores for an exam in which most students did well, but a few students failed. Answer: Left Skewed 2. Amount of

    asked by charlene
  235. 4 grade math

    what are two addition problems with the answer of -30

    asked by priscilla
  236. Math

    Dividing the square root of 63 by what number will give a rational number solution?

    asked by Andie Weaver
  237. math

    translate to an algebraic expression the product of 27% of some number

    asked by mya
  238. Critical Thinking

    Controlling Irrational Fears After 9/11* We present this selection as an example of a fairly well-reasoned argumentative essay. There is more here than arguments—there’s some window dressing and you’ll probably find some slanters here and there as

    asked by Amanda
  239. Quantum Physics

    An electron and a proton each have a thermal kinetic energy of 3kBT/2. Calculate the de Broglie wavelength of each particle at a temperature of 2170 K. (kB is Boltzmann's constant, 1.38×10-23 J/K. The mass of the electron is 9.11×10-31 kg and the mass of

    asked by Sam
  240. Math

    Diane has one stamp of each positive integer value 1 cent through 9 cents, inclusive. She wants to put 10 cents worth of postage in a row across the top of an envelope. If arrangements of the same stamps in different order are considered different, how

    asked by -Z
  241. practice book

    get rid of the double negatives you never wanted to be no miner your sure its too hard a life?

    asked by priscilla
  242. math

    the product of 27% in algebraic expression.sorry the ? says to type the % as a decimal and use q to represent some number. would i write that like q=0.27

    asked by mya
  243. math grd 11-midterm tomm

    please explain how do u draw an asymtote ? and whats the diff btwn set and interval notation? and example plz thanks

    asked by just wondering
  244. practice book

    grt rid of the double negatives you sure its too hard a life?

    asked by maya
  245. Health Administration

    Describe three potential barriers to entry in the pharmaceutical industry.

    asked by Hilary
  246. Religions Of the World

    How do you think the importance of these relationships developed? What spiritual purpose do you think they serve for indigenous peoples?

    asked by Ray
  247. geometry

    HELP.... In a certain lottery, 3 numbers between 1 and 9 inclusive are drawn. These are the winning numbers. How many different selections are possible? Assume the order in which the numbers are drawn is not important. Answer choice: a.) 6 b) 84 c) 504 d)

    asked by nicole
  248. math grd 11

    how do u draw an asymtote ? diff btwn set and interval notation? and example plz

    asked by forki
  249. Math

    Eliminate the parameter and write the corresponding rectangular equation whose graph represents the curve. x = sqrt t y = 1 - t

    asked by Abbey
  250. Calculus - urgent

    Find the dimensions of the largest cylinder that can be inscribed in a cone of fixed height H and fixed radius R

    asked by Aliza
  251. geometry

    How many 5 card poker hands consisting of 3 aces and 2 kings are possible with an ordinary 52-card deck? Answer choice: a).12 b).288 c).6 d).24 I got 24 is that correct?

    asked by nicole
  252. Calculus - urgent

    An isosceles triangle is inscribed in a circle of fixed radius R and centre O. What is the minimum area of the region outside the triangle and inside the circle?

    asked by Aliza
  253. grammar

    10 verbs and adjectives that are frequently overused or very mundane . HELP!

    asked by ashley
  254. MATH MID TERM TOMM PPL PLZ HELP

    how do u draw an asymtote ? diff btwn set and interval notation? and example plz

    asked by forki
  255. Cultural diversity

    What are some of the changes the united States has made to policies concerning the immigration and treatment of Muslim and Arabix members of society?

    asked by Anonymous
  256. Economics

    What is medical arms race (MAR)?

    asked by Ryan
  257. math

    25% of what number is 20 i got 1/4 can you tell me if i am right

    asked by mya
  258. algebra

    2r-9s=-24 9r+2s=62 the quest asks to write a order pair or tell if there is infinitely solutions or no solutions. can you help

    asked by curt
  259. COMMON PPL MATH MIDTERM

    how do u draw an asymtote ? diff btwn set and interval notation? and example plz

    asked by forki
  260. Physics 11th Grade

    A foam ball of a mass of 0.150 g carries a charge of -2.00 nC. The ball is in a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

    asked by Adam
  261. English

    1. What was their job? 2. They worked at a bakery. 3. He worked at a bakery, and she worked for a bank. 4. What were their jobs? 5. He worked at a bakery, and she worked for a bank. 6. They worked at a bakery. (Will you look at the questions and answers?

    asked by rfvv
  262. geometry

    5. The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR.

    asked by sally
  263. English

    1. I am all ears. (What is the part of speech of 'all'? Is 'all' an adjective or an adverb? What is the meaning of 'all' here?) 2. They are all happy. (What is the part of speech of 'all'? Is 'all' an adjective or an adverb? What is the meaning of 'all'

    asked by rfvv
  264. Economics

    Analysts believe that although the medical arms race may have led to quality competition in the 1980s _____ has led to more price competition since the 1990s. a. selective contracting through managed care b. prospective payment c. economies of scale d.

    asked by Ryan
  265. geometry

    The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR.

    asked by sarah a
  266. Reading

    Which word would fit best for the word endangered, suffering, disappearing,or menacing in the sentence "With fewer than 100 Vancouver Island marmots living in the wild, it is one of the world's most endangered animals." ?

    asked by Eliza
  267. science, 7th,6th,8th,9th grade

    In what three ways can machines make work easier?

    asked by Nyla Rose
  268. algebra

    -6x>1/13 the question is asking me for a solutions set using the multiplication principle

    asked by curt
  269. Math

    Eliminate the parameter and write the corresponding rectangular equation whose graph represents the curve. x = sqrt t y = 1 - t

    asked by Abbey
  270. Reading

    Which sentence sounds more like an opinion? 1.The workers move in military-like columns and fan out from the nest. 2.The largest known Amazon colony has more than one million army ants.

    asked by Ida
  271. math

    Mark hid a $10 bill inside his favorite book. He forgot the pages where he hid it. If the sum of the pages where the bill is hidden is 177, on what pages will Mark find his money?

    asked by Victoria
  272. Math

    Write the slope-intercept form of an equation of the line that passes through the given point and is perpendicular to the graph of each equation. 1.(-2,-2),y=-1/3x+9 2.(-4,-3),4x+y=7 3.(-4,1),4x+7y=6 4.(-6,-5),4x+3y=-6 These are the answer I came up with,

    asked by Shadow
  273. math

    How many 5 card poker hands consisting of 3 aces and 2 kings are possible with an ordinary 52-card deck? Answer choice: a).12 b).288 c).6 d).24 I got 24 is that correct?

    asked by nicole
  274. Pre-calc-urgent

    How do you find a formula for f(x) and g(x) if h(x)=f[g(x)] h(x)=(2x^3-5)^4

    asked by Erica
  275. CHEM

    given the general chemical equation, A yields 3C + D , a. how many moles of C can be produced from one mole of A? b. how many moles of D can be produced from four moles of A?

    asked by Sienna
  276. math

    Two matrices can be multiplied only if their sizes are compatible. Suppose that U is an m × n matrix, and that V is a p × q matrix. In order for U•V to make sense, what must be true of the dimensions of these matrices? Although matrix multiplication

    asked by yadlay
  277. statystics

    A company manufactures wind turbines. A random sample of 25 turbines is taken and the sample mean life is 20.00 years with a standard deviation of 2.50 years. If you were constructing a 90% two-sided confidence interval estimate, the upper limit would be

    asked by Anonymous
  278. college math

    can you help me factor 3xy@+9xy+6x=

    asked by Anonymous
  279. college math

    canyou help me factor x^3-x=

    asked by Anonymous
  280. science

    suppose 35 grams of waterare cooled from 15 c to 10 c how much heat is given off?

    asked by Roselyn
  281. statystics

    : Human Resources took a survey and found that the average commute time one way is 25.4 minutes. However one of the executives feels that the commute is less. He randomly selects 25 commuters and finds that the average is 22.1 minutes with a standard

    asked by Adela
  282. chem lab (webwork)

    What is the pH of the solution created by combining 1.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH pH wHCl pH wHC2H3O2 1.80 Complete the table below: What are the pH values if you take

    asked by anonymous
  283. math help

    Let u = [2,−3, 1] and v = [0, 1, 4]. Calculate the vector u − v. Place u and v tail-totail to form two sides of a triangle. With regard to this triangle, what does u−v represent? Calculate the number u•u and discuss its relevance to the diagram you

    asked by jillian
  284. physics

    How far would you have to drill into the Earth, to reach a point where your weight is reduced by 8.0 ? Approximate the Earth as a uniform sphere.

    asked by Adam
  285. physics

    Can a person, in principle, travel from Earth to the galactic center (which is about 2.3e4 lightyears distant) in a normal lifetime? Explain, using either time-dilation or length contraction arguments. If they want to make the trip in 24 y what distance

    asked by Andy
  286. math

    Centered 6 meters above the ground, a Ferris wheel of radius 5 meters rotates at 1 degree per second. Assuming that Jamie’s ride begins at the lowest point on the wheel, find how far Jamie is above the ground after 29 seconds; after 331 seconds; after t

    asked by sarah b
  287. geometry

    There are two noncongruent triangles that have a 9-inch side, a 10-inch side, and that enclose 36 square inches of area. Find the length of the third side in each of these triangles.

    asked by sarah b
  288. Economics - stock purchase

    Can someone please help me? I am so confused! My homework is called stock purchase and I need to find some information abut three stocks. I'm starting with microsoft. The first three questions are the stock name, symbol, and address of the headquarters.

    asked by Samantha
  289. social studies

    in what ways does religon affect american society?

    asked by cynthia
  290. 6th grade

    what is a word for what happens when you are confused?

    asked by annie
  291. math 140

    how do i determine if the amount of credit card debt of familiesin the US is left-skewed, right-skewed, or symmetric? I have read and re-read my book and still can not figure it out. thanks

    asked by rasha
  292. Math

    Triangle ABC has vertices A(0,4),B(1,2),and C(4,6). Determine whether triangle ABC is a right triangle.Explain. How do I do this?

    asked by Shadow