Questions Asked on
September 20, 2012

  1. english

    1. What makes “The Seafarer” an elegy? a.It celebrates the speaker’s faith in God. b.It describes a strong and fearless traveler. c.It focuses on feelings of loss and mourning. 2. What is the fate of the speaker in “The Wanderer”? a.He must

    asked by tiyan
  2. SIG FIGS

    How many significant figures does 22.0, 0.22, 22. , 0.022? Im just confused as to the decimal addition to numbers and what the sig figs will be for them. If you don't mind can you please state some rules for sig figs that are helpful and some confusing

    asked by Sally
  3. Chemistry

    A 0.41 g sample of limestone was dissolved in HCl and all the calcium in the limestone was converted to Ca2+(aq). The solution was treated with excess ammonium oxalate, (NH4)2C2O4(aq), and it was found that 3.0 g of calcium oxalate, CaC2O4(s) was

    asked by Bob
  4. Chemistry

    The solubility of acetanilide in hot water (5.5 g/100 mL at 100C) is not very great, and its solubility in cold water (0.53 g/100 mL at 0C) is significant. What would be the maximum theoretical percent recovery from the first recrystallization of 0.5 g of

    asked by david
  5. Calc 3

    Find all partial derivatives? v = (xy)/(x-y) vxx= vxy= vyx= vyy=

    asked by Becky
  6. calc 3

    Use the Chain Rule to find dw/dt. w = ln (x^2 + y^2 + z^2)^.5 , x = 9 sin t, y = 6 cos t, z = 7 tan t

    asked by Becky
  7. physics

    A swimmer is capable of swimming 0.95 m/s in still water. (a) If she aims her body directly across a 150-m-wide river whose current is 0.65 m/s, how far downstream (from a point opposite her starting point) will she land?

    asked by jeje
  8. Math

    Suppose 8 out of every 20 students are absent from school less than 5 days a year. Predict how many students would be absent from school less than 5 days a year out of 40,000 students

    asked by Deontai
  9. Physics

    A solid of density 5000 kg/m^3 weighs 0.5 kgf in air.It is completely immersed in water of density 1000 kg/m^3. Calculate the apparent weight of the solid in water.

    asked by Mayank
  10. Calculus

    Consider the function f(x)=(5^x−1)/x. A) Fill in the table values for f(x): x= -0.1, -0.01, -0.001, -0.0001, 0.0001, 0.001, 0.01, 0.1 f(x)= 1.4866, 1.5866, 1.6081, 1.6093, 1.6096, 1.6107, 1.6225, 1.7462 B) Based on the table values, what would you expect

    asked by Sofia
  11. Physics

    A 5.2-m-diameter merry-go-round is initially turning with a 3.0s period. It slows down and stops in 28s. i found the v = 5.4 m/s, How many revolutions does the merry-go-round make as it stops?

    asked by Brion
  12. Chemistry(Please check)

    List the conjugate base for the following acids: 1) Acid = CH3CH2CH2NH3^+ Conjugate base = CH3CH2CH2NH2^- 2) Acid = CH3CH2CH2OH2^+ Conjugate base = CH3CH2CH2OH^- Are my answers correct? Thank you!

    asked by Hannah
  13. phsycis

    A tight-rope walker walks across a 30.0 m long wire tied between two poles. The center of the wire is displaced vertically downward by 1.0 m when he is half-way across. If the tension in both halves of the wire at this point is 3675 N, what is the mass of

    asked by nate
  14. geometry

    Type a counter-example that would have to exist in order for the conclusion to be false. 5 0, 6 0, 12 0, 16 0, 20 0, 100 0. Conclusion: All numbers are greater than 0.

    asked by haley e
  15. General Chemistry (Chem101)

    A chemist mixes two liquids A and B to form a homogeneous mixture. The densities of the liquids are 2.0514 g/mL for A and 2.6678 g/mL for B. When she drops a small object into the mixture, she finds that the object becomes suspended in the liquid; that is,

    asked by Emily
  16. Chemistry

    Carborundum (silicon carbide) boiling chips are better than calcium carbonate chips in the recrystallization of an unknown,why ?

    asked by david
  17. mathematics

    in triangle abc if acosA= bcosB then how to prove the triangle is isosceles or right angled

    asked by edward
  18. Chem

    There are two stable isotopes of Gallium Their masses are 68.92558 and 70.9247050 AMU. If the average atomic mass of gallium is 69.7231, what is the natural abundance of the lighter isotope? I don't know where to start!

    asked by Emily
  19. Chemistry

    25.00 mL of heavy water (D2O where D is a hydrogen with a neutron in its nucleus) at 20 degrees C was pipetted into a 37.234 g beaker. The final mass of the beaker was 64.859 9 a- what is the density of heavy water at 20 degrees C b-The density of normal

    asked by Teresa
  20. arrays

    Rock bands often stack their speakers in an array. One teen band has 24 speakers. They stack them at least 2 high, but no taller than 8 high. What are all the different arrays they can make.

    asked by william
  21. chemistry

    The mass of an empty flsk is 49.74 g. what is the mass of the flask filled with acetone ( d = 0.792 g/mL) if the same flask weighs 75.2 g. when filled with water?

    asked by ClaudYIA
  22. MATH

    IT TOOK STACY 6 MINUTES TO COUNT TO 1,000. IF SHE CONTINUED COUNTING AT THE SAME RATE, HOW LONG WOULD IT TAKE HER TO COUNT TO 1,000,000?

    asked by TCRUZ
  23. mathematics

    how many liters of water will have to be added to 1125 liters of 45% solution of acid so that the resulting mixture will contain more than 25% but less than 30% acid content.

    asked by edward
  24. Chemistry

    A modern penny weighs 2.5 g but contains only .063 g of copper. How many copper atoms are present in a modern penny? Thanks in advance for any help you can give!

    asked by Danya
  25. phsyics

    a 100 kg block being released from rest over a pulley from a height of 1.0 m. It takes 0.98 s to reach the floor. What is the mass of the block hanging on the other side of the pulley.

    asked by mike
  26. arrays

    One band has fewer than 40 speakers. They stack them in a array exactly 9 high. How many speakers could they have? Explain how you know.

    asked by william
  27. calculus

    2 posts one is 10m high and other is 15m higs stand 30m apart they are to be stayed by transmission wire attached to a single stake at the ground level, the wire running to the top of the post , where should stake place to used least amount of wire ?

    asked by erico
  28. math

    if you diluted 145 ml of a 9% benzocaine lotion to 6% how much could you produce

    asked by toby
  29. physics

    when the shuttle bus comes to a sudden stop to avoid hitting a dog, it decelerates uniformly at 4.7m/s as it slows from 8.7 m/s to 0 m/s. find the time interval of acceleration for the bus

    asked by danni
  30. Chemistry

    Which cannot be broken down chemically or physically into a simpler substance between sugar, salt, seawater, and copper?

    asked by Jenny
  31. Math

    How many significant figures does 22.0, 0.22, 22. , 0.022? Im just confused as to the decimal addition to numbers and what the sig figs will be for them. Thank you!!!

    asked by Sally
  32. Chemistry

    The solubility of compound A in ethanol is 0.4 g per 100 mL at 0C and 5.0 g per 100 mL at 78C. What is the minimum amount of solvent needed to recrystallize an 8.0 g sample of compound A? How much would be lost in the recrystallization? Show your work.

    asked by david
  33. Chemistry

    Carborundum (silicon carbide) boiling chips are better than calcium carbonate chips in the recrystallization of an unknown,why ?

    asked by david
  34. Physics

    A tortoise can run with a speed of 0.13 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 4.0 minutes. The tortoise wins by a shell (35 cm). (a) How long does the race take? (b) What is

    asked by Kelly
  35. Chemistry

    Why can a water-ethanol solution be used for recrystallization but not a water-hexane solution?

    asked by david
  36. English

    Why was literacy a prime concern in the Massachusetts Bay colony?

    asked by Daysha
  37. Physics

    tammy leaves the office drives 50 km due north, then turns onto a second highway and continues in a direction of 32 degrees north of east for 93 km. At what angle is her displacement? (consider east to be 0 degrees and north 90 degrees)

    asked by Krystal
  38. Chemistry

    • A student crystallized a compound from benzene and observed only a few crystals when the solution cooled to room temperature. To increase the yield of crystals, the students chilled the mixture in an ice-water bath. The chilling greatly increased the

    asked by david
  39. Physics

    Standing on a balcony, you throw your keys to a friend standing on the ground below. 1.2 seconds after you release the keys, they have an instantaneous velocity of 15.7 m/s, directed 52° below the horizontal. What initial velocity did you give them?

    asked by Andrew
  40. Physics

    Standing on a balcony, you throw your keys to a friend standing on the ground below. 1.2 seconds after you release the keys, they have an instantaneous velocity of 15.7 m/s, directed 52° below the horizontal. What initial velocity did you give them?

    asked by Andrew
  41. mathematics

    write the number of points of intersection of 2y=1 and y= sinx. -2pi

    asked by edward
  42. arrays

    One band has 30 speakers. They stack them at least 3 high, but no taller than 6 high. What are all the different arrays they could make?

    asked by william
  43. math

    A tight-rope walker walks across a 30.0 m long wire tied between two poles. The center of the wire is displaced vertically downward by 1.0 m when he is half-way across. If the tension in both halves of the wire at this point is 3675 N, what is the mass of

    asked by john
  44. physics

    A 2.14 kg block is held in equilibrium on an incline of angle q = 67.7o by a horizontal force, F. If the coefficient of static friction between block and incline is ms = 0.314, determine the minimum value of F. Determine the normal force of the incline on

    asked by AB
  45. chemistry

    The atomic mass of chlorine is listed as 35.454 amu on the periodic table. It has two naturally occurring isotopes, CI-35 and CI-37. What are the approximate percentage of each?

    asked by Sara
  46. science

    why is scientific inquiry a process with many paths, not a rigid sequence of steps?

    asked by katie
  47. arrays

    another band has 30 speakers. they stack them at least 4 high, but no taller than 6 high. what are all the different arrays they could make?

    asked by william
  48. Ratio and Proportions

    Salina had some local and foreign stamps. The ratio of the number of local stamps to the number of foreign stamps was 3:4. She bought 21 more local stamps and the ratio became 9:8. a. How many foreign stamps did Salina have? b. How many local stamps did

    asked by Dottie
  49. math

    two fourths of a circle plus two tenths of a circle is what decimal part of a whole circle?

    asked by Carol
  50. physics

    A window washer drops a brush from a scaf- fold on a tall office building. What is the speed of the falling brush after 2.7 s? (Neglect drag forces.) The acceleration due to gravity is 9.8 m/s2 . Answer in units of m/s How far has it fallen in that time?

    asked by Melanie
  51. physics

    A hiker makes four straight-line walks A 31 km at 299 degrees B 32 km at 210 degrees C 29 km at 59 degrees D 22 km at 150 degrees in random directions and lengths starting at position (41 km, 41 km). Which vector will return the hiker to the starting

    asked by Joe Rogers
  52. dynamics

    The acceleration of a particle is defined by the relation a = -60x^-1.5, where a is expressed in m/s^2 and x in meters. Knowing that the particle starts with no initial velocity at x = 4 m, determine the velocity of the particle when x = 2 m, x = 1 m, x =

    asked by Bwelvin
  53. Physics

    A bear spies some honey and takes off from rest, accelerating at a rate of 2.3 m/s2.v If the honey is 18 m away, how fast will his snout be going when it reaches the treat?

    asked by Jacob
  54. Physics

    A gull is flying horizontally 8.17 m above the ground at 6.35 m/s. The bird is carrying a clam in its beak and plans to crack the clamshell by dropping it on some rocks below. Ignoring air resistance, what is the horizontal distance to the rocks at the

    asked by Lisa
  55. Math

    This isn't a question for math homework but i have a really low grade in math and i want to raise it up. What can i do to get my grade up because i am getting progress reports on Monday and i want to get a really good grade.PLEASE HELP!!!!

    asked by Jimena
  56. Physics

    The average person passes out at an acceleration of 7g (that is, seven times the gravitational acceleration on Earth). Suppose a car is designed to accelerate at this rate. How much time would be required for the car to accelerate from rest to 59.1 miles

    asked by Kelly
  57. Physics

    A person climbs from a Paris metro station to the street level by walking up a stalled escalator in 96.5 s. It takes 60.0 s to ride the same distance when standing on the escalator when it is operating normally. How long would it take for him to climb from

    asked by Caitlin
  58. 3rd math

    April needs to estimate the sum of 427 and 338 should she round to the nearest ten or hundred to get the closer answer? Explain.

    asked by morgan
  59. physics

    Two cars are driving toward each other on a straight and level road in Alaska. The BMW is traveling at 115 km/h north and the VW is traveling at 54.0 km/h south, both velocities measured relative to the road. At a certain instant, the distance between the

    asked by Lisa
  60. english 11

    What is Henry's answer to the objection that the colonists are not ready to fight against the British?

    asked by diamond
  61. physics

    A boy is riding a bicycle in a rainy day. The force exerted by the boy and the force due to which rain falls downward.

    asked by Abhishek
  62. physics

    a stone is dropped from rest at the top of a mine shaft. it takes 59 s for a stone to fall to the bottom of a mine shaft. how deep is the shaft? the acceleration of gravity is 9.8 m/s2

    asked by shaniqua
  63. Math

    How many liters of oil are required to supply the electrical energy needs of an average home for a month? Energy released by burning 1 liter of oil= 1.2 x 10(7th power) Electrical energy used in an average home daily 5 X 10 (7th power) I got 125 liters. Is

    asked by Sam
  64. Physics

    After falling from rest from a height of 35 m, a 0.49 kg ball rebounds upward, reaching a height of 25 m. If the contact between ball and ground lasted 1.7 ms, what average force was exerted on the ball?

    asked by Freedo
  65. physics

    (a) If a person can jump a maximum horizontal distance (by using a 45° projection angle) of 3.43 m on Earth, what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and g = 9.80 m/s2

    asked by Anonymous
  66. physics

    A crate of potatoes of mass 13.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.76 and μk = 0.35. Find the frictional force (magnitude and direction) on the crate if the crate is sliding up the ramp.

    asked by Becky
  67. Math

    Daniel Filled the gas tank in his car with 14.6 gallons of gas. He then drove 284.7 miles before needing to fill up his tank with gas again. How many miles did the car get to a gallon of gasoline? (I'm just wondering how To set up this problem)

    asked by Ellisyn Noelle
  68. Chemistry

    A chemist conducted a recrystallization on 18.5 g of a solid and collected 12.5 g from the first, and 2.7 g from the second recrystallization. Show your calculation and answer the following questions: What is the percent recovery in the first

    asked by david
  69. math

    a fencing company was asked to enclose three gardens with wire fences: a rectangular garden with a length of 270 meters and a width of 1123.62 meters; a square garden with a side length of 657.955 meters; and a rectangular garden with a width of 35 meters

    asked by christian
  70. Coporate Finance

    Two-State Option Pricing Model T-bills currently yield 5.5 percent. Stock in Nina manufacturing is currently selling for $70 per share. There is no possibility that the stock will be worth less than $65 per share in one year. a. What is the value of a call

    asked by Karen
  71. Algebra 2

    Jason loves to download music. Downloads R Us sells songs only in packages of three, and it charges $2.00 for each package of three songs. jason's favorite group just released their Greatest Hits CD, which has 17 songs on it. Jason wants to buy all 17

    asked by Anonymous
  72. Chemistry

    A mixture of iodine solid and sodium chloride ( Hint: iodine is not soluble in water) What method(s) can I use to separate the mixtures? Filtration Evaporation Centrifugation Decant Magnetic attraction Paper chromatography Distillation

    asked by Anonymous
  73. arrays

    Another band has 48 speakers. They stack them at least 4 high, but no taller than 6 high. What are all the different arrays they can make?

    asked by william
  74. physics

    Position vector r has magnitude of 14.8m and direction angle 240 degrees. 1. Find it's components, enter x and y components of the vector 2. Find the components of the vector -2r, enter x and y components of the vector 3. Find the magnitude of the vector

    asked by Jessica
  75. algebra

    Find the value of 7n when n is 7565

    asked by Andie
  76. Math Ratios

    Julian, Majid and Pillay had the same number of rubber bands. During a game, Julian lost 12 rubber bands to Pillay and Majid lost 20 rubber bands to Pillay. The ratio of Julian's rubber bands to Majid's rubber bands became 4:3. How many rubber bands did

    asked by Dottie
  77. algebra

    a boy is b years old and his father is 6 times as old as him. find the father's age. and also the sum of their ages in years time?

    asked by zeenia
  78. Algebra

    A farmer plans to enclose a rectangular region using part of his barn for one side and fencing for remaining sides. The area of the region is maximized when the width is 30 feet. a.) write an equation that could model the area as a function of the width.

    asked by Kristen
  79. Science (Physics)

    1.A hiker started to walk from her campsite heading east with a velocity of 5 m\s after 6 seconds, she attained a velocity of 7 m\s. What is the average velocity of the hiker? What is the hiker’s acceleration? If the hiker continues walking for another

    asked by Shannon
  80. physics

    A daredevil is shot out of a cannon at 41.6 ◦ to the horizontal with an initial speed of 28.6 m/s. A net is positioned a horizontal distance of 29 m from the cannon. At what height above the cannon should the net be placed in order to catch the

    asked by asdfghjk
  81. Physics

    1) A physics book is moved once around the perimeter of a table of dimensions 1 m by 3 m. What is the distance traveled? 2) A window washer drops a brush from a scaf- fold on a tall office building. What is the speed of the falling brush after 2.7 s?

    asked by Melanie
  82. Chem

    The mass of a cube of iron is 277 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?

    asked by Reg
  83. Chemistry

    Which cannot be broken down chemically or physically into a simpler substance between sugar, salt, seawater, and copper?

    asked by Jenny
  84. calculus

    Differentiate the function. S(R) = 4πR^2

    asked by michelle
  85. Algebra

    I'm totally confused help please?!? In 1990, 253 million people visited theme parks in the United States. In 2000, the number of visitors increased to 317 million people. What was the percent of increase?

    asked by Claire
  86. Physics

    A ball is thrown from a point 1.38 m above the ground. The initial velocity is 19.9 m/s at an angle of 33.8° above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the

    asked by David
  87. algebra

    5x/9-11=-51

    asked by charles
  88. Financial Investments

    The number of years n required for an investment at interest rate r to double in value must satisfy (1+r)^n = 2. Using the approximation ln(1+r)=r valid for small r, find the number years n as a function of r.

    asked by John
  89. physics

    A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant, a ball is dropped from rest from a building 15 m high. After how long will the balls be at the same height?

    asked by Shayla
  90. MATH

    a large stadium holds almost 100,000 people about how many times does the stadium have to filled for total attendance to reach one million?

    asked by TCRUZ
  91. math

    order these decimals greatest to least 0.08, 0.09, 1.4, 0.0045, 2.9

    asked by Moolly
  92. physics

    A car traveling initially at +5.7 m/s acceler- ates uniformly at the rate of +0.79 m/s2 for a distance of 262 m. What is its velocity at the end of the accel- eration? Answer in units of m/s What is its velocity after it accelerates for 132 m? Answer in

    asked by Melanie
  93. math

    A jewelry designer is making identical bracelets. She has 21 blue beads and 14 red beads. What is the greatest number of bracelets she can make using all of the beads

    asked by kennady
  94. Physics

    A gull is flying horizontally 8.17 m above the ground at 6.35 m/s. The bird is carrying a clam in its beak and plans to crack the clamshell by dropping it on some rocks below. Ignoring air resistance, what is the horizontal distance to the rocks at the

    asked by Josh
  95. Physics

    Instructions for building a buried treasure include the following: Go 872 paces at 167 degrees turn to 286 degrees and walk 135 paces, the travel 319 paces at 152 degrees. A) Find the magnitude of the resultant displacement from the starting point. B) What

    asked by Krystal
  96. chemistry

    When 14 grams of a sample cools from 59C to 27.8C it loses 20.9 Joules of heat. What is the specific heat of the sample?

    asked by Opal
  97. MATH

    IT TOOK STACY 6 MINUTES TO COUNT TO 1,000. IF SHE CONTINUED COUNTING AT THE SAME RATE, HOW LONG WOULD IT TAKE HER TO COUNT TO 1,000,000?

    asked by tc
  98. Math

    The perimeter of a rectangular deck is 175 feet. The length of the deck, L, is 6 feet longer than 2 times the width, W. Which system of equations can be solved to determine the length and width, in feet, of the deck? What is the correct formula and why? a)

    asked by Allison
  99. Physics

    A stone is dropped from a height of 5 meters. How long will the stone be in the air?

    asked by Makayla
  100. physics

    A heat engine has a hot reservoir of 680°C and a cold reservoir of 220°C. What is the efficiency of the engine?

    asked by Erika
  101. Chemistry(Please check)

    an acid with the equilibrium concentration is listed below: 1) HA + H2O = H3O^+ + A- HA= 10^-1 M, H3O=10^-3M, A=10^-3M Calculate the Ka and pKa for the acid. Ka=[10^-3][10^-3] / [10^-1] = 1.00 X 10^-5 pKa = -log[1.00 X 10^-5] = -1.00 Did I do this

    asked by Hannah
  102. physics

    Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If mass one equals 3.6 Kg and mass two equals 9.2 Kg, and block two is initially at rest 140 cm above the floor, how Long does it take block two to reach the

    asked by Anonymous
  103. 3rd math

    The flower shop just received a shipment of 432 roses. They need to fill an order for 273 roses. Use any method to how many roses they will have left.

    asked by morgan
  104. math

    A function whose domain is all reals and whose range is all integers.

    asked by Felipe
  105. college us history to 1877

    compare and Contrast the New England, Southern and Middle colonies using geography including a appraisal of a geographic perspective that considers physical and cultural processes as they effect the areas, population, reason for coming to America,

    asked by tristen
  106. Physics

    A motorist drives north for 40.0 minutes at 61.5 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 1.70 h. (a) What is his total displacement? (b) What is his average velocity?

    asked by Kelly
  107. Accounting

    Calculate variable cost variances—explain results The standards for one case of Springfever Tonic are: Direct materials . . . . . . . . . . . . . . . . . . 8 lbs. @ $3.00/lb. = $24 Direct labor . . . . . . . . . . . . . . . . . . . . . 6 hrs. @ $1

    asked by Jasmine
  108. math

    dr.chen told miranda that her new puppy needs a diet that includes at least 1.54 ounces of protein and 0.56 ounce of fat each day to grow into a healthy dog. each cup of good start puppy food contains 0.84 ounce of protein and 0.12 ounce od fat. each cup

    asked by ann
  109. Calculus

    During a sale, a music store is selling all drum kits for 20 percent off. Preferred customers also receive an additional fifteen percent off. Write a composite function to represent the final cost of a kit that originally cost c dollars. Find the cost of a

    asked by Anonymous
  110. Abnormal Psychology

    Behaviors such as fighting, destructiveness, and threatening others are referred to as _______ behaviors. A. aggressive C. externalizing B. delinquent D. externalizing and aggressive

    asked by Felicia
  111. Physics

    A particle's constant acceleration is north at 108 m/s2. At t = 0, its velocity vector is 61.7 m/s east. At what time will the magnitude of the velocity be 102 m/s?

    asked by Caitlin
  112. math

    how do i figure out the volume that 90g would occupy?

    asked by malcolm
  113. physics

    With an average acceleration of −0.96 m/s2, how long will it take a cyclist to bring a bicycle with an initial speed of 14.8 m/s to a complete stop? Answer in units of s

    asked by Melanie
  114. physics

    A car starts from rest and travels for 4.1 s with a uniform deceleration of 2.1 m/s2. What is the final velocity of the car? Answer in units of m/s

    asked by shirley
  115. Language Art

    In the giver, i guess headdresses and hair ribbons represent sameness. Does anyone know what page number it talks about the headdress because im not able to find it ?

    asked by edon
  116. science

    10 grams of ice at 0 degree centigrade absorbs 5460 joules of heat to melt and change itno water at 50 degree centigrade.calculate the specific latent heat of fusion of ice?

    asked by Anonymous
  117. Physics

    A rollercoaster travels 135ft at an angle of 58.7 above the horizontal. How far does it move horizontally?

    asked by Krystal
  118. Conditional Probability

    A box contains 1 green ball, 2 blue balls, and 3 red balls. These balls are selected at random, one after another without replacement, and their colors are noted. Find the conditional probability that the third ball is red given exactly one ball is red.

    asked by Sarah
  119. math

    how to solve 2x-9/3=8-3x

    asked by erin
  120. physical

    From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval

    asked by Aa
  121. biology

    Why are antibiotics and vitamins not normally autoclaved when preparing microbiological media?

    asked by geeta
  122. English

    I need help in writing a summary for the article posted in the new york times. The article is Texting may be taking a toll by Katie Hafner.

    asked by Vicky
  123. stats

    a horse race has 11 entries, assuming that their are no ties what is the probability that four horses owned by one person finish first second third and fourth

    asked by chuck
  124. Spelling

    From the vocabulary word in lis 6, choose the word that bests completes each sentence. Write the word in the blank provided. 1. Sir Lancelot's _______ was so great that it was said, "He hath the strenght of ten because his heart is pure. - Is the words

    asked by Losa
  125. math

    if one sign binks every 7 seconds and the other sign blinks every 9 seconds in how may seconds will they blink together again?

    asked by connie
  126. Calculus -Series3

    Find the sum of the following convergent series: (a) Ei=1 1 / (3i - 2)(3i + 1) I know that it equals: = 1/4 + 1/28 + 1/70 + 1/130 + 1/208 a= 1/4, but I can't figure out what r = 1/4 * 1/7 = 1/28, but from 1/28 to 1/70 and so on it doesn't work anymore.

    asked by Paul
  127. math

    how do i do the problem 3.14=7x=2y

    asked by liam
  128. mathematics

    not drawn to scale, shows a prism of length 30cm. the cross section wyxz is a square with area 144cm^2 (i) the volume in cm^3. of the prism

    asked by mckeia thomas
  129. Math

    Can You help me with this question? The distance from the earth to the sun is about 1.5 X 10^8 km, while the distance from the earth to the moon is about 3.8 X 10^5 km. If a scale model of the solar system is constructed so that the distance from the Earth

    asked by Sam
  130. social studies

    Use a map to describe the earliest explorations of the New World by the Vikings.

    asked by Yog
  131. math

    how do you put 2√45 in simplest radical form?

    asked by Mandi
  132. Abnormal Psychology

    Which of the following is not true of the meta-analytic findings of research therapy with children? A. Changes achieved by children receiving treatment are greater than those for children not receiving treatment. B. Treatment effects are larger for

    asked by Felicia
  133. Math

    If you have 7 striped socks and 3 red ones. How many must you take away to be sure to have a striped pair?

    asked by Misty
  134. math

    a large stadium holds almost 100,000 people about how many times does the stadium have to filled for total attendance to reach one million?

    asked by tc
  135. Intro to Accounts

    Hello, I really don't know where to begin Travis Fortney, an architect, opened an office on April 1, 2010. During the month, he completed the following transactions connected with his professional practice: a.Transferred cash from a personal bank account

    asked by Ann Marie Moiten
  136. chemistry

    drysol contains 5g of aluminum chloride hexahydrate in 60 ml of an alcohol base. what is the final strength of drysol

    asked by kim
  137. mathematics

    what is the maximum value of sinthetacostheta?

    asked by edward
  138. Advanced Alegebra

    How do I solve the following problems? My homework was to correct a puiz that I failed, but I do not know how to solve these problems..please help! Solving systems of equations using elimination: 7.) 10x - 10y = 0 5x - 4y = 8 Answer (8,8) I got the right

    asked by JT
  139. mathematics

    the complex numbers 1,-1,iorta root3 form which type of triangle in graphical form

    asked by edward
  140. MAT

    The recommanded weight range for a person who is 64 inches tall

    asked by CC
  141. Math

    Find the present value of $9500 in 6 1/2 years if money earns 7.5% compounded continuously.

    asked by Eunice
  142. INFORMATION LITERACY

    Exam: 050006RR - INFORMATION LITERACY:STUDY UNIT

    asked by g
  143. Abnormal Psychology

    _______ refers to the concept that the child’s behavior is both influenced by and influences the behavior of others. A. Coercion C. Reciprocal influence B. Attachment D. Influential factor

    asked by Felicia
  144. Abnormal Psychology

    The formal assignment of a clinical case to a DSM-IV-TR classification category is referred to as a/an _______ diagnosis. A. empirical C. proper B. taxonomic D. psychological

    asked by Felicia
  145. algebra

    $16 added to an amount of money saved,s, then spent equally on 3 items what does the expression mean?

    asked by Bobby
  146. probability

    From a well- stuffed deck of playing cards is drawn. Find the probability that: a.) it is a spade? b.) it is a face card? c.) it is a jack?

    asked by Anonymous
  147. calculus

    Determine whether the series is convergent o divergent and say what test you used to solve it. (d) sum n=1 to infinity (5n)^(3n) / (5^n + 3)^n (e) sum k=1 to infinity 5 / sqr(2k - 1)

    asked by Paul
  148. physics

    A boy is riding a bicycle in a rainy day. The force exerted by the boy and the force due to which rain falls downward.

    asked by Abhishek
  149. math

    A bead maker wants to separate 10,000 beads in boxes. She will put 100,000 beads in one box. Where will she put the 4358216th bead?

    asked by Anonymous
  150. math

    Every year there is a race to the top of the empire state building. In 1993 the winner got to the top in 10 minutes, 18 seconds. how many stairs did the winner go up per second, rounded to the nearest whole number

    asked by annie
  151. chemistry

    what is the bond order of n2 positive, n2neagative, n2 2neagative?

    asked by edward
  152. Physics

    Your 2.85kg physics book rests on a horizontal tabletop. A. Find the normal force on the book. B. Suppose you pull up on the book with a 15.0N force, now what's the normal force? C. Suppose you push down on the book 15.0N Force now what's the normal force?

    asked by Jessica
  153. Math

    Solve each equation for x e^(4x+1)=p log (kx)/ log (5) = c

    asked by Anonymous
  154. BIOLOGY

    Why does the quadrant streak technique able to give single colonies?

    asked by geeta
  155. math

    list all the factors of 48

    asked by connie
  156. Math

    While visiting their uncle's farm, Francine and Leah caught 68 turtles in the creek on Saturday. What was the total number of tickets sold for the two days? Estimate using on the front digits.

    asked by Susan
  157. English

    1. When my teacher stopped [making reeds. Sending] all of her students on a wild goose chase. a. no change b. reeds. Thus sending c. reeds, she sent d. reeds, sending 2. They tend to take their time sending reeds to [you. I usually] have to wait a. no

    asked by Mac
  158. physics

    determine the acceleration for a jet taking off on a run way as it starts from rest and reaches a velocity of 50m/s over a period of 10s

    asked by damarcus foggle
  159. math

    To cook 4 cups of rice, you use 8 cups of water. To cook 10 cups of rice, you use 20 cups of water. Write an expression to show how many cups of water you should use if you want c cups of rice. How many cuos of water shou you use to cook 5 cups of rice?

    asked by sharon
  160. Abnormal Psychology

    In comparison with youth on the life-course-persistent path, those on the adolescentlimited path A. display more extreme antisocial activity. B. are more likely to drop out of school. C. are often influenced by situational factors, such as their peers. D.

    asked by Felicia
  161. Math

    A function whose domain is all reals, and which maps all rational numbers to 1 and all irrational numbers to 0.

    asked by kenny
  162. Math

    The ruble is the currency in Russia. In 2005, 1 united states dollar was worth 28 rubles. How many rubles were equivalent to 10 united states dollars

    asked by Shion
  163. Geometry

    x+4/-3=6-x

    asked by Jonay
  164. AP Human Geography

    What are some mathmatical examples of physiological and agricultural density?

    asked by Juno
  165. physics

    200 gram cube is moved by a 100 gram water filled Styrofoam cup

    asked by harry
  166. calculus

    Differentiate the function. g(x)= x^2(1-2x) g'(x)= i tried doing 2x(1-2x) 2x-4x^2

    asked by maura
  167. Physics

    A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant, a ball is dropped from rest from a building 15 m high. After how long will the balls be at the same height?

    asked by Shayla
  168. physics

    A boy is riding a bicycle in a rainy day. The force exerted by the boy and the force due to which rain falls downward.

    asked by Abhishek
  169. literature

    Where is Hrothgar leading the warriors at the beginning of Episode Seven?

    asked by anonymous
  170. music

    why college students learn about music that is not their favorite type

    asked by shelby
  171. Geometry

    What is the simple term for a converse? Like what is it? Like when they say "Same Side Interior CONVERSE" Whats the converse part mean?

    asked by Bryce
  172. science

    After you have worked out at the gym on a stationary bike for 44.0 minutes, the distance gauge indicates that you have traveled 16.1 miles. What was your rate in km/hr?

    asked by Jim
  173. physical

    From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval

    asked by Aa
  174. 24 game

    How can you add,subtract,multiply, or devide the number 8,1/4,2,7 to get 24? You can only use the nunbers once

    asked by edwin pena
  175. math

    2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

    asked by Jack
  176. chemistry

    Concentrated hydrochloric acid is a 38% solution of hcl in water and has a density of 1.18g/ml. How many milliliters of concentrated hydrochloric acid are needed to prepare 500ml of a 1:200 hcl solution. My own three calculation 1.18g/ml x 1000ml x0.38 /

    asked by Fai
  177. physics

    a car traveling in a straight line has a velcoity of 2.43 m/s at some instant. After 6.73 s, its velocity is 9.81 m/s. what is its average acceleration in this time interval?

    asked by shaniqua
  178. physics

    a car traveling in a straight line has a velcoity of 2.43 m/s at some instant. After 6.73 s, its velocity is 9.81 m/s. what is its average acceleration in this time interval?

    asked by shaniqua
  179. Physics

    Judy, by chance, spots a potted plant falling outside the window at 2.88 m/s . Further down the same building, Judy’s boyfriend clocks the pot at 54 m/s . How far apart are the friends? The acceler- ation of gravity is 9.8 m/s2 . Answer in units of m

    asked by Melanie
  180. Physics

    A ball is thrown straight up and reaches a maximum height of 6.71 m. What was its initial speed? The accelera- tion of gravity is 9.8 m/s2 . Answer in units of m/s please give right answer and explain how you got it, thanks !

    asked by Melanie
  181. Chemistry

    Calculate the quantity of cold water assuming that 50mL of cold water weighs 50g.

    asked by Jamie
  182. Calculus - Series4

    Determine if the following sequence: { (n + 1)^2 / (n^2 + 1) }, is ascending, descending and find the lower bound b OR the upper bound B. (n + 1)^2 / (n^2 + 1) > ((n+1) + 1)^2 / ((n+1)^2 + 1) so the sequence is descending, it's the bounds I don't know how

    asked by Paul
  183. word power

    4. Someone who is urbane is A. tireless. B. poised. C. witty. [D. friendly.]

    asked by jake
  184. physics

    A car travels along a straight stretch of road. It proceeds for 11.9 mi at 58 mi/h, then 29.4 mi at 44 mi/h, and finally 36.9 mi at 31.6 mi/h. What is the car’s average velocity during the entire trip? Answer in units of mi/h

    asked by Melanie
  185. calculus

    Differentiate. y = x^3/3 − x^2

    asked by michelle
  186. English

    The Modern Drama collection theme is Opening Doors. Discuss examples of the ways in which doors and keys are used as symbols in The Miracle Worker. Make at least two references to specific details in the play to support your ideas.

    asked by Anonymous
  187. Check my Essay?

    The story I am writing about is similar to a song called "Chain of Love" by Clay Walker. This song and the story, "What Goes Around Comes Around," by an unknown author have the exact same concept. "The Chain Of Love" “You don't owe me a thing, I've been

    asked by sk8rgurl
  188. physics

    what is time paradox and time dillation?

    asked by edward
  189. physics

    A bug completes one lap along the edge of a circular planter of radius 14.4 cm in 12.94 s.

    asked by django
  190. Math

    How do you solve a(x+1)= b solving for x

    asked by Brittney
  191. Math

    How do you solve a(x+1)= b solving for x

    asked by Brittney
  192. Geometry

    What is the simple term for a converse? Like what is it? Like when they say "Same Side Interior CONVERSE" Whats the converse part mean?

    asked by Bryce
  193. Chemistry

    This is meant to be simple, but for some reason I'm not getting the right answer. Question is: Perhaps the most famous horse race ever in the United States was the 1938 race between two thoroughbreds, War Admiral and Seabiscuit, both of whom stood about 15

    asked by Emily
  194. statistics

    how do i calculate the SAT score that defines the bottom 3% of students with a mean of 500 and standard deviation of 100

    asked by Penny
  195. math

    find the value of 7n when n is 7565?

    asked by aalyahjackson
  196. Abnormal Psychology

    The single most powerful predictor of conduct problems in adolescence is A. early antisocial behavior. B. early antisocial behavior and involvement with deviant peers. C. early antisocial behavior and poor parenting. D. poor parenting and involvement with

    asked by Felicia
  197. math

    find the value of 7n when n is 7565?

    asked by aalyahjackson
  198. math

    find the value of 7n when n is 7565?

    asked by aalyahjackson
  199. Accounting

    In a trial balance there are amounts in the debit side and credit side. How do i know which one is debtors or creditors? Returns are on both debit and credit side. Which one is Return Inwards?

    asked by Mike
  200. statistic and probability

    a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)

    asked by nitz
  201. sociology

    what can occur when a social norm is dysfunctional?

    asked by Hunter
  202. math

    using the terms factor, division, multiple, product, and divisible by, write as many statements as you can about the number sentence 4x7=28

    asked by enrique
  203. health

    why is it imporant to take part in team disussion on care plans and reviews for clients?

    asked by jessica
  204. ASAP MATH!

    A paper carrier rides a bicycle to deliver newspapers on his route.He averages 5 miles per hour during his route.At that rate,how long would it take him to deliver papers to a street that is 680 yards long?Round the answer to the nearest tenth of a minute.

    asked by Sarah
  205. literacy

    8. Which of the following sets of Dewey Decimal call numbers is in the correct order? A. 813.54 C78A, 813.54 C780B, 813.54 C781D, 813.54 C782A B. 813.54 C781D, 813.54 C78A, 813.54 C782A, 813.54 C780B C. 813.54 C78A, 813.54 C782A, 813.54 C780B, 813.54 C781D

    asked by mandie
  206. math

    a poster reproduces the Mona Lisa in the original size, but adds a 4 1/2 inch border around each side. What is the perimeter of this poster if the length is 30 3/10" and width is 20 7/8"?

    asked by Kyle
  207. physics

    how do you find the initial velocity on a velocity time graph

    asked by shaniqua
  208. physics

    how do you find the initial velocity on a velocity time graph

    asked by shaniqua
  209. physics

    how do you find the initial velocity on a Velocity Vs Time Graph

    asked by shaniqua
  210. Math

    Find the formula for the inverse of the function y =(e^x) / (1+8e^x)

    asked by Anonymous
  211. Math

    the height of a rocket with an upward speed of 1000m/s is expressed as h=1000t-4.9t^2. what is the hight of the rocket after 8 seconds?

    asked by Anna
  212. math

    what is the lcm of 24 and 48

    asked by connie
  213. mathematics

    what is the domain of the function f(x)=1/root[2x-3]

    asked by edward
  214. 7th grade math

    How do you arrange the numbers 2 4 5 and 6 ans insert the symbols "-" and "x" in a way that u follow PEMDAS/ order of operations to get the answer 8

    asked by Diana
  215. word power

    9. A person described as perspicacious is [A. smart and perceptive.] B. inclined to be optimistic. C. inclined to be pessimistic. D. foolishly persistent.

    asked by jake
  216. physics

    list the contact and non contact forces in mathematics. What is the cold welding?

    asked by edward
  217. English Vocab

    For the sentence, The school administration declared a new rule that all students, even boys, must wear pink socks, but when questioned, they refused to ______________ upon the reasoning for this decision. In the blank, which word suits best? Expound or

    asked by Isis
  218. ela

    The narrator points out that Emily, who has only recently blossomed, struggled with her appearance in the past. What this means..

    asked by hannah
  219. Principle of Finance

    How do I calculate profit margin with the following data? Total equity - 639,400 Net incoome - 51,700 Debt equity ratio - .55 Total asset turnover - 2 Thanks!

    asked by Robson
  220. earth science

    astonomer think planets formed from interstellar dust and gased that clumped together in a process is called what?

    asked by Anonymous
  221. calculus

    Differentiate the function. y = (Square root x)(x − 10)

    asked by maura
  222. language arts

    The Giver.At the age of 3, each child needs to have hair ribbons and for boy head dresses. Those are the community rules. But now i need to know what do the hair ribbons and hair dresses symbolize ? Why ? And how do they relate to the outside world or to a

    asked by edon
  223. Global Warming

    What are some ways to stop global warming? I know clean eneregies are involved. (Thanks for the last one!!!)

    asked by Jibbie
  224. Calculus

    The line y=2x+b is tangent to the graph of y=x^1/2 at the point P=(a, a^1/2). Find P and determine b. I don't know what to do because they don't give you the x coordinate or anything to plug into the derivative. Help?

    asked by Macy
  225. World History

    What was the role of women in Muslim society?

    asked by Desdani
  226. Math

    Is there a way to simplify this further? Thanks (√ x + √ y) / x^2+y^2 ( Square root of x plus square root of y) All divided by x^2+y^2.

    asked by Shadow
  227. law/421

    What types of problems was the UCC designed to address?

    asked by at
  228. English

    Can you please give me three examples of friendship and sacrifice? Thanks.

    asked by Emma
  229. Algebra 2

    1. |x^2-3x+3|=3 2. |x^2+2x+1|=-4 3. |3x+2|+3=0

    asked by lulu
  230. math

    anoter poster reproduces the Mona Lisa in the original size, but adds a 4 1/2 inch border around each side. What is the perimeter of this poster if the length is 30 3/10" and width is 20 7/8"?

    asked by Kyle
  231. health

    Adults and children should limit their intake of sodium because? A. Keeping blood pressure in the normal range reduces an individual’s risk of cardiovascular disease, conges¬tive heart failure, and kidney disease. B. Keeping blood pressure in the

    asked by Anonymous
  232. math

    how do you solve 4(3d-2)=8d-5

    asked by erin
  233. Math

    If g(x) = 5 + x + e^x, find g^-1(6) g^-1(6) = ?

    asked by Anonymous
  234. LA

    what links the subject of the sentence with a description of the subject?

    asked by Bob
  235. Social Studies

    Which three countries makes up most of North America?

    asked by joshua
  236. stat

    Help my name is Gee and i have posted several question on and ive waited for help and no one will answer can someone please assist me. My post were on Sept 13 and 18 2012 thank you

    asked by Gee
  237. pre-calculus--Please help, urgent.

    For the function f(x)= 8/x+7,find the average rate of change of f from 1 to x.

    asked by ladybug
  238. Math help ASAP!

    A truck has a maximum-load rating of 5 tons.It is going to be loaded with machine parts that each weigh 66 pounds 9 ounces.How many of the machine parts can be loaded into the truck without exceeding its maximum-load rating?

    asked by Sarah
  239. heath

    What sources might you use to gain information on a new client to aged care facility?

    asked by jessica
  240. MATH FAST NOW!!!!

    1.-80%(-2) (=,) 120/3 2.-1750%70 (=,) -1008/48 3.240/-80 (=,) -150/50 4.675/-45 (=,) 865/-51 5.-3755%x= -15 7.x%(-17)=-35

    asked by An
  241. Math

    I am in need for help on laws of exponents. 1) 4/x^-3== I do not understand... 2)x^4/y^-3 = Early thanks.

    asked by Wilson
  242. 9th Grade Biology

    Assume that the fish have an average mass of 280g. The average caloric value is 8kcal/g. The heron is able to digest 60% of the fishes’ mass. How many will it need to eat to sustain its caloric intake of 3,000kcal/day?

    asked by Aidan
  243. math

    2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

    asked by Jack
  244. Math

    What is the integral: 1/root(2x-x^2)

    asked by Sam
  245. phsyics

    A place kicker must kick a football from a point 35 m (about 38 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 24 m/s at an angle of 48 ◦ to the horizontal. By how

    asked by asdfghjk
  246. science

    What is the relationship between landscape and psychological well being?

    asked by Michelle
  247. health

    What might be disadvantage of rearranging the furniture for the clients with dementia at aged care?

    asked by jessica
  248. chemistry

    how would you, explain ans how calcium chloride [CaCl2] is bonded.

    asked by charlie
  249. math

    A jumbo jet carries 150 passengers, 30 in first class and the remainder in coach. If the average first class ticket is $550 and the average coach ticked is $150, how much will the airplane gross if the plane is full?

    asked by Mary
  250. Math

    Can you help me with this question? Could a person walk across the United States (New York to California) in a year? If not, about how long will it take? Explain your reasoning.

    asked by Sam
  251. math

    there were 32 cookies and 48 carrots served,each cast memebers had the same number of whole cookies and the same number of whole carrots.nothing was left over .what was the most cast members that could have been at the party?

    asked by connie
  252. pre-calculus

    for the function f defined by: (x)=3x^2+3x+2;find the following values. a. f(-1)= b. f(-x)= c. -f(x)= d. f(x+h)=

    asked by ladybug
  253. science

    what is the best way to study for my chemistry test tomorrow

    asked by liam
  254. math

    48.3-12.716=

    asked by connie
  255. math

    8 boxes of 1000 counters

    asked by Anonymous
  256. algebra2 PLEASE

    what are three important thing for an evaluating and inequalities and abs. values please and thank you

    asked by molly
  257. college us history to 1877

    you need to compare and Contrast the New England, Southern and Middle colonies using geography including a appraisal of a geographic perspective that considers physical and cultural processes as they effect the areas, population, reason for coming to

    asked by tristen
  258. math

    what is the prime factorization of 42.

    asked by connie
  259. earth

    what is geography?

    asked by amber
  260. 3rd grade math

    your teacher has told you to subtract by adding on to find the difference in this problem: 71-36. what do you do first?

    asked by zoie
  261. math 116

    need help with the final

    asked by connie
  262. science

    What conclusion could you make for Sun emitting a continuous spectrum of radiation crossed by dark bands

    asked by gideon
  263. English

    1.I started play the oboe because [I've heard] it was a challenging instrument (a) no change (b) I'd have heard (c)I've been hearing (d) I'd heard 2. That was [four years ago and, I've] enjoyed learning to play (f) no change (g) four years ago, and I've

    asked by Becky
  264. English

    On an invitation, it says "Come celebrate at my pad!" and has a picture of a lilly pad on it. Is this an example of a pun?

    asked by Cam
  265. math

    bill stacks a 5-centimeter square on top of a 2-centimeter by 20-centimeter rectangle. what is the smallest rectangle box he can use to pack them together

    asked by nicole
  266. Math

    Show me how to solve (-3.18)(-1)

    asked by Anonymous
  267. physics

    A cara accelerates uniformly from rest to a speed of 21.9 km/h in 8.5 s. Find the distance it travels during this time.

    asked by tammi
  268. Physics

    With what speed relative to the rocks does the clam smash into the rocks? and With what speed relative to the gull does the clam smash into the rocks?

    asked by Lisa
  269. factor completely

    2x^2-8

    asked by Pavleen
  270. Calculus AP

    Use the table of integrals to find int cos^4 3x dx I found the table: ∫cos^n u du = (1/n)cos^(n-1)u sinu + (n-1/n)∫sin^(n-2)u du = 1/4 cos^(4-1)u sinu + (4-1/4)∫sin^(4-2) u du so what i did the problem: let u=3x then du=3dx =1/4*1/3 cos^3u sinu +

    asked by Vicky
  271. math

    I am a number less than 15. The sum of my 4 digits is twice my hundredths digit. My greatest digit is in the ones place. what number am I?

    asked by Anonymous
  272. LA

    A noun in the predicate that is used as a description is called a _______> Please help!

    asked by Darry
  273. Maths

    What is the integral of: 1/root(2x-x2)

    asked by Sam
  274. Science

    pH of: 2.50mL of 0.100M nitric acid added to 30mL of 0.200M potassium hydroxide Please show me working out :)

    asked by Laura
  275. English 8R - HELP! (FAST!)

    English 8R HW - literacy elements + literacy devices, look it up and take notes Please help!!!!! ps -- what is literacy devices????????/

    asked by Lauren
  276. Math

    Explain how to write 40,000 in two different ways (not meaning standard, expanded, or word form).

    asked by Silas
  277. English

    Would a soldier sacrifice their life to serve the country?

    asked by Emma
  278. 7th Grade Math

    How do you identify whether a ratio is a rate??? Thank you for all help.

    asked by completeidiot
  279. science

    how are the purposes of science and technology different?

    asked by katie
  280. Math

    what is 90 rounded to the greatest place?

    asked by Stephanie
  281. us/101

    How would you determine the best way to communicate with each group?

    asked by danielle
  282. word power

    13. One who is intrepid [A. is brave and fearless.] B. is reckless and foolhardy. C. practices self-honesty. D. doesn't stumble and fall.

    asked by jake
  283. maths

    if alpha and bita are the zeros of polynomial p(x=3xsquare+2x+1,find the polynomial whose zeros are 1-alpha/1+alpha and 1-bita/1+bita

    asked by Anonymous
  284. History

    What is moral law? What is civil law? Contrast the both. can someone name me anything relating to those from current events or historical events?

    asked by bob
  285. math

    -h-7= -13 explain on how to the variable while theirs a negative in front of it

    asked by jr