Questions Asked on
September 29, 2011

  1. Physics

    A soccer ball is kicked with an initial horizonal velocity of 18 m/s and an initial vertical velocity of 18 m/s. 1) What is the initial speed of the ball? 2)What is the initial angle of the ball with respect to the ground? 3)What is the maximum height the

    asked by Aziz
  2. biology

    A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur. Solution A: 3.21% (m/v) NaCl Solution B: 1.65% (m/v) glucose Solution C: distilled H2O Solution D: 6.97% (m/v) glucose Solution

    asked by sol
  3. Organic Chemistry

    What are the advantages of using a solvent pair for recrystallization? Select all that apply. A) You can control the solubility of the substance in the mixed solvent. B) You don't have to know the exact amounts of the solvents needed. C) You can quickly

    asked by Lisa
  4. Calculus

    An airplane is flying in still air with an airspeed of 325 miles per hour. If it is climbing at an angle of 20°, find the rate at which it is gaining altitude.

    asked by Mary
  5. Physics

    The ocean's level is currently rising at about 1.5 mm per year. At this rate, in how many years will sea level be 3 meters higher than now? This seems like it should be a simple question but the change in measurements is confusing me.

    asked by Morgan
  6. English-Author's Purpose

    5. Thomas Jefferson and Thomas Paine shared a similar purpose for writing. What was their purpose? (2 points) to express and reflect to persuade to inform to invite Thomas Jefferson wrote the Declaration of Independance and Thomas Paine wrote the

    asked by Amy
  7. Cemistry

    When a 0.952 g sample of an organic compound containing C, H,and O is burned completely in oxygen, 1.35 g of CO2 and0.826 g of H2O are produced. What is the empiricalformula of the compound?

    asked by Eddy
  8. chemistry

    Given the following list from the activity se- ries of metals (from most active to least ac- tive) K, Na, Al, Mn, Cr, Cd, Co, Pb, Hg which reaction would you NOT expect to oc- cur? 1. Na(s) +Mn2+(aq) ! Na+(aq) +Mn(s) 2. Co2+(aq) + Al(s) ! Al3+(aq) + Co(s)

    asked by Chandler
  9. algebra

    maria rented the same car twice in one month. She paid $180 the first rime for 3 days and she drove a total of 150 km. The next time, she also paid $180 and had the vehicle for only 2 day, but traveled 400 km. A. What was the cost per day. B. What was the

    asked by Anonymous
  10. english1994m

    Typical of ballad "lord randall" omits details and ends with half the strory told. do you think the young man's lover poisned him? why or why not. what other questions in regarding the plot are left unanswered? MY ANSWER: Using dialogue and passion, this

    asked by Mark J
  11. Chemistry

    C4H10O(l) + O2(g) --- CO(g) + H2O(g) When I balanced it I got this C4H10O(I) + 4O2(g) --- 4CO(g) + 5H2O Am I correct

    asked by Monique
  12. Math

    A rock is placed into a graduated cylinder containing 80 mL of water. What is the volume of the rock if the water level rises to the 120 mL level?

    asked by Miracle
  13. Chemistry

    HCN is mixed with water. Which is the best description of what you would expect to find in the solution? 1. CN−, OH−, and water molecules 2. HCN molecules, H3O+, CN1−, and water molecules 3. H2CN+, OH−, and water molecules 4. H3O+, CN−, and

    asked by Anonymous
  14. Chem

    A volume of equimolar strong acid like HCl is mixed with an equal volume of equimolar strong base like NaOH in a beaker of water. What exists after the reaction?

    asked by Chandler
  15. statistics

    A job in an insurance office involves telephone conversations with policyholders. The office manager estimates that about half of the employee’s time is spent on the telephone. How many observations are needed in a work sampling study to estimate that

    asked by rodrigo
  16. Geometry

    Given: angle ABD is a right angle , angle CBE is a right angle. Prove: angle ABC is congruent angle DBE

    asked by Sam
  17. CHEM

    Calculate G° for each reaction using G°f values. MnO2(s) + 2 CO(g) Mn(s) + 2 CO2(g)

    asked by Amanda
  18. Chemistry

    How many CO2 molecules can be made with 0.500 mol of oxygen atoms?

    asked by Monique
  19. Physics

    A 61 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is one-quarter of a circle with a radius of 2.89 m. What speed does he need at the bottom?

    asked by Jose
  20. chemistry

    4NH3 + 5O2 → 4NO + 6H2O 2NO + O2 → 2NO2 3NO2 + H2O → 2HNO3 + NO In this process, the NO made in the last reaction is recycled back into the second reaction and used as a reactant. In the end, all of the NO produced is recycled back so that when the

    asked by jane
  21. Math

    Express the repeating decimal 0.513 (the 13 is repeating so the decimal is 0.5131313131313...) as a fraction in lowest terms using the infinite geometric series method.

    asked by Haile
  22. Physics

    A 27.59 kg child is on a swing that hangs from 2.26-m-long chains. What is her maximum speed if she swings out a 48° angle?

    asked by Jay
  23. chemistry

    An oxalic acid solution contains the following species in varying concentrations: H2C2O4, HC2O4-, C2O4^2-, and H+. Which of the above four species can act only as acids, which can act only as bases, and which can act as both acids and bases?

    asked by Amber
  24. physics

    A diver springs upward with an initial speed of 1.6 m/s from a 3.5-m board. (a) Find the velocity with which he strikes the water. [Hint: When the diver reaches the water, his displacement is y = -3.5 m (measured from the board), assuming that the downward

    asked by Anonymous
  25. chemistry

    which is the more active metal 2Li+Cu(NO3)2----2LiNO3+Cu

    asked by shells
  26. help please:)

    Which one of the following statement best describes what a budget is ? A.A method of figuring out the inflation rate. B.An organized plan for spending money C.A way to keep people from really enjoying life. D.A plan for saving money. i got C what do you

    asked by ciara
  27. Math 111

    This is a question that deals specifically with WebWork. Here is the question: Write the set of points from -2 to 4 but excluding -1 and 4 as a union of intervals my solution to this would be: [-2,4]U(-1,4) my reasoning: The first set includes -2 and goes

    asked by Joey
  28. physics

    solve for Vf in a=Vf^2-Vi^2/2d how do you do it???

    asked by lia
  29. Chemistry

    Which of the following aqueous solutions should form a precipitate with aqueous Fe(NO3)3? 1. KOH 2. KCl 3. K2SO4 4. KNO3

    asked by Yep
  30. Statics

    a solid hemisphere of weight W rests in limiting equilibrium with its curved surface on a rough inclined plane and its plane face is kept horizontal by a weight W1 attached to a point in its rim. prove that the coefficient of friction is W1/√(W(W+2W1))

    asked by Vasuki
  31. Chemestry

    What property of paradichlorobenzene may convince you that it is an ingredient in mothballs?

    asked by Helena
  32. Pre-calculus

    The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of theta by finding a point on the line. y= -3/2x in quadrant 4

    asked by Maria
  33. physics

    Suppose a person weighs 160 pounds on Earth. How much would that person weigh on a planet that was three times as massive as Earth and had a radius that was twice that of Earth's?

    asked by Ruth
  34. Chemistry

    Calculate G° for each reaction using G°f values. MnO2(s) + 2 CO(g) Mn(s) + 2 CO2(g)

    asked by Amanda
  35. math

    You are driving home from college steadily at 95km/hour for 130km. It begins to rain and you slow to 65km/hour. You arrive home after driving 3 hours and 20 minutes. How far is your hometown from college?

    asked by Sam
  36. organic chemistry

    Michael & Aldol Condensation Reaction We are preparing an a,b-unsaturated ketone via Michael and aldol condensation reactions. The reactants are trans-chalcone and ethyl acetoacetate (in ethanol and NaOH). This creates

    asked by Anonymous
  37. organic chemistry

    Michael & Aldol Condensation Reaction We are preparing an a,b-unsaturated ketone via Michael and aldol condensation reactions. The reactants are trans-chalcone and ethyl acetoacetate (in ethanol and NaOH). This creates

    asked by Anonymous
  38. math

    The surface area of the moon is 37932330 km square. Calculate the side length of a square with the same area.Show your work.

    asked by cool1997
  39. Free Enterprise

    Explain whether you think the supply of the following goods is elastic or inelastic, and why. (a)Hotel Rooms (b)Taxi Rides (c)Photographs

    asked by CP
  40. physics

    Only two forces act on an object (mass = 5.27 kg), as in the drawing. Find the (a) magnitude and (b) direction (relative to the x axis) of the acceleration of the object.

    asked by Anonymous
  41. precalculus

    the Ohio turnpike has a maximum uphill slope of 3 degrees. how long must a straight uphill segment of the road be in order to allow a vertical rise of 450 feet

    asked by Anonymous
  42. geometry

    Point T bisects RS. If R(-2,-5) and S(-14,-21), find the coordinates of point T.

    asked by George
  43. organic chemistry

    Michael & Aldol Condensation Reaction We are preparing an a,b-unsaturated ketone via Michael and aldol condensation reactions. The reactants are trans-chalcone and ethyl acetoacetate (in ethanol and NaOH). This creates

    asked by Anonymous
  44. chemistry

    Which of the following is best described as an acid-base reaction? 1. NaCl + AgNO3 !NaNO3 + AgCl 2. Ca + 2H2O ! Ca(OH)2 + H2 3. 2HgO ! 2 Hg + O2 4. KCl + NH4NO3 ! KNO3 + NH4Cl 5. NH3 + H2O ! NH+ 4 + OH−

    asked by Chandler
  45. chemestry

    a coin is composed of gold and silver. the 5.00g coin is dissolved in nitric acid and the solution treated with NaCl to precipitate out 2.35g of AgCl. Gold chlorides do not precipitate under the same conditions. What is the composition of silver (by mass)

    asked by Help please!
  46. 3rd grade math

    Use the digits 3, 7, 1, 5 to write a number that rounds to each of the following 2,000 3,500 6,000 7,400

    asked by Jaylen
  47. College Math

    What is conditional, and identity or a contradiction ? in terms of a linear equation. Please can you give some examples

    asked by HM
  48. Chemistry

    What is the formula mass for (NH4)3PO4

    asked by Monique
  49. chemistry

    Which of the following is a possible set of n, l, ml, and ms quantum numbers for the last electron added to form an As3+ ion? (a) 3, 1, -1, ½ (b) 4, 0, 0, -½ (c) 3, 2, 0, ½ (d) 4, 1, -1, ½ (e) 5, 0, 0, ½

    asked by bob segar
  50. algebra

    "Tanya's age is ten years greater than half Aarons age. If the sum of their ages is 55, how old is Tanya?" can who ever solves this explain how to do it too???

    asked by Trisha
  51. math

    1. Estimating the Temperature of a Yam Suppose you put a yam in a hot oven, maintained at a constant temperature of 200C. As the yam picks up heat from the oven, its temperature rises.16 (a) Draw a possible graph of the temperature T of the yam against

    asked by Anonymous
  52. chemistry

    With the aid of a labelled diagram,explain how molten Aluminium Oxide (bauxite) is electrolysed.

    asked by Mary
  53. physics

    A golf ball with an initial angle of 35° lands exactly 218 m down the range on a level course. (a) Neglecting air friction, what initial speed would achieve this result? m/s (b) Using the speed determined in item (a), find the maximum height reached by

    asked by allyson
  54. engineering science

    A ramjet is to propel an aircraft at Mach 3 at high altitude where the ambient pressure is 8.5 kPaand the ambient temperature T-node is 220 K. The turbine inlet temperature T is 2540 K. If all components of the engine are ideal - that is, frictionless -

    asked by david
  55. Physics

    A student places her 442 g physics book on a frictionless table. She pushes the book against a spring, compressing the spring by 4.44 cm, then releases the book. What is the book's speed as it slides away? The spring constant is 1102 N/m.

    asked by Juan
  56. science

    a man drops a stone in a well and hears the sound of the stone hitting the water after 4 sec calculate the depth of the well ( assuming the speed of sound in the well is 364 m\s )

    asked by meera
  57. physics

    A car starts from rest and travels for 5.5 s with a uniform deceleration of 1.3 m/s 2 . What is the final velocity of the car? Answer in units of m/s

    asked by izzy
  58. Math

    Express the repeating decimal 0.513 (the 13 is repeating) as a fraction in lowest terms using the infinite geometric series method.

    asked by Haile
  59. math

    the sum of 1 half + 1 fourth + 1 eith...

    asked by Anonymous
  60. Biology

    Animal cells can take up sucrose against its concentration gradient using a Na+/sucrose symporter. Indicate if the following statements are true or false. 1. In the Na+/sucrose symporter Na+ is also moving against its concentration gradient. False 2. For

    asked by Cady
  61. Language arts/writing

    An acrostic poem for the bill of rights?

    asked by Fred
  62. Physics

    A proton is projected perpendicularly into a magnetic field that has a magnitude of 0.32 T. The field is then adjusted so that an electron will follow a circular path of the same radius when it is projected perpendicularly into the field with the same

    asked by Breanna
  63. chemistry

    A dilute aqueous solution of CaCl2 contains 0.159 grams of solute per liter of solution. It is fully dissociated. What is the osmotic pressure of the solution against a membrane at 20.0 °C?

    asked by sarah
  64. Chemistry

    The solubility of a certain compound in ice-cold water is 0.22g in 100mL. Its solubility in hot water is 4.35g in 100mL What is the best possible percent recovery we can expect for the re-crystallization of this compound in water?

    asked by tom
  65. geometry

    Angle ABC measures 120 Degrees and is bisected by line BD. Find x if the measure of angle ABD is (1/2)x+5

    asked by hally more
  66. Chemistry

    A student forgot to measure the mass of an empty 100mL beaker before adding about 2g of a chemical to it, and decided to simply obtain the mass of another empty 100mL beaker instead. Would this be a satisfactory alternative?

    asked by -Untamed-
  67. Chemistry

    The solubility of salicilyc acid in water at 20C is .2g in 100mL. The solubility is salicilyc acid in boiling water is 6.67g in 100mL. Calculate the minimum volume of water needed to re-crystallize .550g of crude salicilyc acid.

    asked by Jessie
  68. Math

    1. First of all, pick the number of times a week that you would like to have chocolate (try for more than once but less than 10) 2. Multiply this number by 2 3. Add 5 4. Multiply it by 50 5. If you have already had your birthday this year add 1761 ; If you

    asked by Caryls
  69. algebra

    What is the 32nd term of the arithmetic sequence where a1 = 13 and a13 = –59?

    asked by jes
  70. CHEMISTRY

    Suppose that 30.0 mL of 0.20 M C6H5COO(aq) is titrated with 0.30 M KOH(aq). a) What is the initial pH of the 0.20 M C6H5COOH(aq)? b) What is the pH after the addition of 15.0 mL of 0.30 M KOH(aq)? c) What volume of 0.30 M KOH(aq) is required to reach

    asked by Sarah
  71. Calculus

    Can someone explain to me how to do these? Given the following definite integral and n=4 answer the following questions. (Round your answers to six decimal places.) 1. Use the Trapezoidal Rule to approximate the definite integral. Answer: T4= 2. Use the

    asked by Patrick
  72. English

    how to write a newspaper review?

    asked by Jessica
  73. College Abstract Algebra

    If H is a subgroup of G and K is a normal subgroup of G,prove that HK = KH

    asked by Jackie
  74. math

    What is 6% sales tax on $2.59

    asked by sara
  75. physics

    Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. When you increase your speed by 4.5 mi/h, the time to go one mile decreases by 12 s. What was your original speed?

    asked by Pili
  76. Math

    Kevin has a rabbit, a ferret, a gerbil and a turtle. He feeds them in a different order each day. In how many different orders can Kevin feed his pets?

    asked by Carter
  77. geometry

    Find if segments QU and RT are parallel and they are cut by transversal VS

    asked by Anonymous
  78. Chemistry

    When the following equation is balanced with the smallest integral coefficients, the coefficient of the HNO3 is Li2CO3(s) +HNO3(aq) -- LiNO3(aq)+H2O(l)+CO2

    asked by Monique
  79. operations management

    a manager is trying to estimate the appropriate learning curve for a certain job. the manager notes that the first four units had a total time of 30 min. which learning curve would yield approximately this result if the firs unit took 10 minutes. A) .70

    asked by u of a
  80. physics

    A ball player hits a home run, and the baseball just clears a wall 17.3 m high located 131.0 m from home plate. The ball is hit an an angle of 35° to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 1.0 m above the

    asked by kaylee
  81. ap government

    what are two ways that amendments to the constitution can be proposed?

    asked by angela
  82. Physics

    A 0.55 kg block slides across a tabletop with initial velocity of 3 m/s and it comes to rest in a distance of 0.53 m. Find the average friction force that retarded its motion.

    asked by Anonymous
  83. english

    Although the trend is shifting, careers in science and technology continue to attract predominately men.

    asked by Katy
  84. Algebra

    logx4 = 1/3

    asked by Blue
  85. math

    A class of 25 students has 10 boys. Three boys have braces and 4 girls have braces. a) What is the ratio of boys with braces to boys in class? b) What is the ratio of girls with braces to girls in class? c) Which group has the largest ratio of students

    asked by sara
  86. Algebra I

    How do you solve the following literal equation: xp + yp = z

    asked by Jane
  87. physics

    A car travelling at a constant speed of 136 km/hr passes a tropper hidden behind a billboard. One second after the speeding car passes the billboard, the tropper sets in a chase after the car wit ha constant acceleration of 3.8 m/s^2. How far does the

    asked by nikki
  88. Chemistry

    Calculate the volume of 2 M acetic acid needed to prepare 50 ml of 0.1 M acetate buffer.

    asked by Allie
  89. C#

    Write a program that displays your initials in a pattern on the screen. Compose each initial with six lines of smaller initials, as the following example: J FFFFFF J F J FFF J F J J F JJJJJJ F

    asked by Mike
  90. math

    A rectangle was constructed using 24 square tiles. If you add the length and width of her rectangle together, you would get 11. What is the length and width of this rectangle?

    asked by Hannah
  91. Calculus

    For what values of x is the tangent line of the graph of f(x)=8x3+36x2+46x−72 parallel to the line y=−2x+1.9 ? Enter the x values in order, smallest first, to 4 places of accuracy: x1= ≤ x2=

    asked by Allison
  92. Math

    For a 3-person relay race, a coach can choose from 4 of his top runners.how many different 3- person teams can he choose ? Use the act it out strategy.

    asked by Math
  93. pre-calculus

    suppose a triangle has two sides of lengths a and b. if the angle between these sides varies, what is the maximum possible area that the triangle can attain? what can you say about the minimum possible area? could you explain by detail

    asked by tatiana
  94. english 30-1

    explain how a thankless expereince is a satire. support with direct reference to the essay.

    asked by high school student
  95. geometry

    is it possible to draw a triangle whose sides measure 5 inches, 9 inches, and 14 inches?

    asked by kelli
  96. mean median mode

    i need to find from the following data the outlier and how the outlier affects the mean. find also the mean median mode here are the numbers: 156 145 162 215 148 163 here is what i got: outlier; 215 with the outlier the mean is: 164.8 with out the outlier

    asked by Marko
  97. physics

    Two children are playing on two trampolines. The first child can bounce 1.4 times higher than the second child. The initial speed up of the second child is 4.8 m/s. The maximum height of the second child is 1.17m and the initial speed of the first child is

    asked by Brianna
  98. Physics

    A 1596 kg car traveling at 24.91 m/s skids to a halt. What is the change in the combined thermal energy of the car and the road surface?

    asked by Joe
  99. fundamental of management

    what of organization structure is best for competing in the international car war?why?

    asked by anurag
  100. Chemistry

    I'm supposed to do this for an organic chemistry prelab. I've read my books and tried Googling everything possible, but I still don't know how to set this up. Please help! The solubility of a certain compound in ice-cold water is 0.18g in 100 mL. Its

    asked by Katy
  101. Chemistry

    What is the net ionic equation for the reaction Cu(s) + 2 Ag (NO3)2(aq) --- Cu(NO3)2(aq) + 2AG(s)

    asked by Monique
  102. math

    Find the volume generated by rotating the area between y = cos( 3 x ) and the x axis from x = 0 to x = π/ 12 around the x axis

    asked by sk
  103. Chemistry

    At 298 K, nitrous acid (HNO2) dissociates in water with a Ka of 0.00071. a)Calculate G° for the dissociation of HNO2. (Use Ka to calculate the answer.) b) Calculate G if [H3O+] = 0.00070 M, [NO2 - ] = 0.16 M, and [HNO2 ] = 0.21 M.

    asked by Heather
  104. math

    logx4 = 1/3 Solve. Is this the right answer? x^logx4 = x^1/3 4 = x^1/3 x = 4^3 = 64

    asked by Nemo
  105. calculus

    Express the given quantity as a single logarithm. 1/3ln(x + 2)3 + 1/2[ln(x)− ln(x^2+3x+2)^2]

    asked by Anonymous
  106. physics

    Harry accidentally falls out of a helicopter that is traveling at 80 m/s. He plunges into a swimming pool 4 seconds later. Assuming no air resistance, what was the horizontal distance between Harry and the swimming pool when he fell from the helicopter?

    asked by Abby
  107. Algebra

    Simplify the expression. Write the answer without negative exponents. (4a^3b^3)(4ab^2)^2

    asked by Christina
  108. psychology

    According to behavioral treatment approaches, abnormal behavior is learned through: (a.)thoughts based on the perception of events. (B.)vicarious experiences. (c.) rewards and punishments. (D.)conflict experiences in early childhood.

    asked by lachelle
  109. chemistry

    If 5 g of solid sodium hydroxide is dissolved in 100 mL of water, what is the molarity of the solution in moles of NaOH/L of solution (moles/L)?

    asked by Sarah
  110. Pre-calculus

    The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of theta by finding a point on the line. y= -3/2x in quadrant 4

    asked by Maria
  111. Finance

    A state's lottery winner is promised $200,000 a year for 3 years(starting at the end of the first year). Interes rate is annually 7 percent on its fund. How much is the present value of this lottery?

    asked by Anne
  112. math

    A bumblebee can flap its wings 200 times per second. About how many time times can it flap in l000 min.

    asked by help
  113. redwine

    what measures does patrick henry say the colonists have already tried in their dealings with england?

    asked by rachel
  114. chemistry

    what makes matter exist in three states (solid,liquid,gas)

    asked by sujith
  115. earth

    Compared with the strength of Earth's gravity at its surface, how much weaker is gravity at a distance of 11 Earth radii from Earth's center?

    asked by chris
  116. chemestry

    the mass of CuSCN precipitate is 1.379g, what is the mass of copper in the precipitate?

    asked by Help please!
  117. math

    Solve for y, then find the value of y when given x = –2. 6x = 7 – 4y

    asked by katie
  118. math

    Lara wrote the statements shown in the chart. Statement One: If two lines intersect, then they intersect at exactly one point Statement Two: In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the length of

    asked by Please Help Me
  119. help please :)

    What is the last thing you should do before turning in your essay? A.Write the secong draft. B.proofread the essay to make it is free from errors. C.Revise and edit,changing and rearranging the content. D.All of the above. i got D what do you think ?

    asked by ciara
  120. Math Analysis

    (3.) The plane 2x + 3y – 4z = 5 intersects the x-axis at (a,0,0), the y-axis at (0,b,0), and the z-axis at (0,0,c). The value of a + b + c is?

    asked by B
  121. Chemistry

    Calculate the number of molecules in 3.11mol of CCL4 this is what I'm doing I got the molecular weight of CCL4 which is 181.88 Then I set it up like this 3.11 mol CCL4/ 181.88 mol CCL4 x 6.022E23 = 1.03E22 Am I right

    asked by Monique
  122. Math

    Determine the coordinates of the endpoint of a segment CE with one endpoint at C(3,10) and a midpoint at (-1,-6). Disclaimer: This is 10th grade geometry.

    asked by Sahana E.
  123. Language

    A naturalistic language-learning environment

    asked by Daisy
  124. physics

    A projectile is launched at 45 degrees above the horizontal plane, How fast is it moving at the top of its curved trajectory? 141m.s?

    asked by Anonymous
  125. chemistry

    The initial concentration for the compounds involved in the reaction displayed were determined to be [CH4(g)] = 0.9530 mol/L, [H2O(g)] = 0.9911 mol/L, [CO(g)] = 0.7474 mol/L, [H2(g)] = 0.2717 mol/L. Calculate the value of the equilibrium constant (Kc) at

    asked by BOB
  126. SOCIAL STUDIES ECONOMICS 7TH GR

    I need to explain the terms from an economic view rather than a political view of. But I need to show this 3 concepts of economics with just pictures and symbols that reflect how i understand the concept. I need to use minimal words. I need to make sure my

    asked by MARKO
  127. calc

    How do you simplify tan(sin^-1 (x)) ?

    asked by Anonymous
  128. Math Analysis

    lim x-->infinity (3x^2+4x-5)/(6x^2+3x+1)

    asked by B
  129. Physical Science

    Alpha particle tracks through gases and thin metal foils show few deflections. What does this tell us about the atom??

    asked by Brooke
  130. College

    My dream is to go to Harvard University. When I grow up I want to become an artist, & creative writer (like writing stories & stuff. Here are some questions I would like to ask you guys. Please answer these questions please I know I'm too young (age 12,

    asked by Kim
  131. Physical science/football/algebra

    suppose that Andrew is running down the field at 8 yards per second and then cuts right running 6 yards per second. He executes this maneuver in 0.5 seconds. Calculate his acceleration

    asked by Mercedes
  132. Math

    ln x^2(x+1)/x+2 Write in terms of ln(x), ln(x+1), and ln(x+2) is the correct steps this? lnx^2 + ln(x+1) - ln(x+2) = 2lnx + ln(x+1) - ln(x+2)

    asked by Blue
  133. Physics

    Two students are on a balcony 24.9 m above the street. One student throws a ball, b1, vertically downward at 19.6 m/s. At the same instant, the other student throws a ball, b2, vertically upward at the same speed. The second ball just misses the balcony on

    asked by Chris
  134. math algebra 98

    a lawn is in the shape of a trapeziod with a height of 60 ft and bases of 30 ft and 170 ft. how many bags of fertilizer must be purchased to cover the lawn if each bag covers 3200 sq. ft

    asked by rubirose
  135. cemestry

    Scientists in 1962 became very excited when they were able to create xenon tetrafluoride. Why was this an unusual feat?

    asked by Anonymous
  136. physics

    It takes you 7.6 min to walk with an average velocity of 2.5 m/s to the north from the bus stop to the museum entrance. How far did you walk? Answer in units of m What is your direction? (multiple choice) 1. West 2. North 3. South 4. East

    asked by Sam
  137. physics

    how to calculate the vibration when the car hits a bump?

    asked by nunu
  138. Physics

    John weighs 660 N, and Marcia weighs 486 N. Estimate the gravitational force between them when they are 0.47 m apart. I've tried finding the mass of john and marcia by doing m=F*a (F being their weight in Newtons and a being 9.8 m/s^2). When I found their

    asked by Kellie
  139. PHI 103

    PHI 103 Symbolic Logic- write 2 argument in English,one in the form of modus ponens and one in the form of modus tollens.Then write the argument in symbols using sentences letters and truth-functional connectives.

    asked by Vandella
  140. Government.

    Regarding the commerce clause, which statement is incorrect? A. The states may regulate interstate commerce. B. The national government may not regulate interstate commerce. C. Commerce is to be unregulated by gov't. D. Local taxing authorities may

    asked by Adryan
  141. statistics

    AB ia a uniform rod of length 120 cm and weight 18kg.wt it rotates about a hinge at its end A. its end B is pulled by a light string whose other end is tied to point C over A. the rod is in equilibrium when it inclines to the horizontal at 30degree if the

    asked by Anonymous
  142. Math

    The sum of 25 consecutive integers is 1000. What is the smallest integer used as an addend.

    asked by Vic
  143. College Math

    Another question which is confusing. The position of an object moving in a straight line is give by s=2t^2-3t, where is s in metres and t is the time in seconds the object has been in motion.. how long will it is take the object to move 6 meters? I first

    asked by HM
  144. physics

    If a race car completes a 2.8 mi oval track in 41 s, what is its average speed? Answer in units of mi/h

    asked by Kate
  145. physics

    A car (m = 1670 kg) is parked on a road that rises 10.3 ° above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires?

    asked by Anonymous
  146. trig

    All solutions in interval [0,2pi) of cosine theta plus one equals zero

    asked by Anonymous
  147. help plesse :)

    Which one of the following statement best describes what a budget is ? A.A method of figuring out the inflation rate. B.An organized plan for spending money C.A way to keep people from really enjoying life. D.A plan for saving money. so is it D ?

    asked by ciara
  148. statistics

    A normal distribution has a mean of 20 and a standard deviation of 2. If you convert every score in the distribution to Z scores, which of the following statements would be true of the resulting distribution?

    asked by Anonymous
  149. physics

    A ball in tennis is lofted with an initial speed of 15m/s, at and angle of 50 degrees above the horizonal. At this instant, the opponent is 10m away from the ball. He begins moving backwards 0.3s later, hoping to reach the ball and hit it back at the

    asked by billy
  150. chemistry

    which is the more active metal Co+Cr(NO3)2....no reaction

    asked by shells
  151. business

    A loan of face value $30,000,000 is issued in bonds each face value $300. The bonds will be repaid with a bonus of 20%. 1/5th of the total capital will be repaid each year, the first payment being at the end of the 10th year. Coupons on the outstanding

    asked by Kevin
  152. computer

    Simplify Boolean algebra f(X,Y,Z)=(X’Y+XZ)(X+Y’)

    asked by Ardi
  153. 156

    is this a strong thesis statement? Legalizing marijuana has many benefits such as, reducing overcrowding in prisons, helping create jobs for low to mid income individuals, reduce the budget for ”the war on drugs” and can treat different medical

    asked by Anonymous
  154. Math 116AA

    find the slope if it exists of the line containing the pair of points (5,1)and (6,-2) the slope is M= the slope is undefined Help!!!!!

    asked by Katie A
  155. Chemistry HELP

    Calculate the number of molecules in 3.11 mol of CCL4 I got 2.88E26 am I correct

    asked by Monique
  156. Calculus

    If f(x)=(3x)/(1+x2) find f′(4)______. Use this to find the equation of the tangent line to the curve y=(3x)/(1+x2) at the point (4,0.70588). The equation of this tangent line can be written in the form y=mx+b where m is: ________ and where b is:______

    asked by Robin
  157. Language

    A naturalistic language-learning environment is

    asked by Daisy
  158. math URGENT HELP

    Mr. Hobbs was just about to take out a home mortage of $120,000 for 20 yrs at the rate of 10.0% compounded monthly. The monthly payments would have been $1158.03. But a competitive bank offered him a 30 yr mortgage at 9,5% which has monthly payments of

    asked by Blaire
  159. Physical science/football/algebra

    suppose that Andrew is running down the field at 8 yards per second and then cuts right running 6 yards per second. He executes this maneuver in 0.5 seconds. Calculate his acceleration

    asked by Mercedes
  160. CHEM

    The equilibrium constant for the reaction below is Kc = 9.1 10-6 at 298 K. 2 Fe3+(aq) + Hg22+(aq) 2 Fe2+(aq) + 2 Hg2+(aq) Calculate G when [Fe3+] = 0.21 M, [Hg22+] = 0.013 M, [Fe2+] = 0.022 M, and [Hg2+] = 0.020 M.

    asked by Amber
  161. Spanish Literature Question 2

    Ok so I understand that Historia del hombre que se convirtio en perro relates to existensialism and the politicla in Argentina. But HOW exactly to the events in the story convey that?

    asked by Cassie
  162. Math 116AA

    Solve using the multiplication method 5/6x=-7/6 X=

    asked by Katie A
  163. Science

    A crate of mass 2000 kg is hanging from a crane at the end of a cable 12 m long. If we attach a horizontal rope to this crate and gradually apply a pull of 1800 N, what angle will the cable finally make with the vertical?

    asked by May
  164. Math 116a Fraction

    Solve using the multiplacation method -2x>1/9 {x x } I have no clue how to do this?

    asked by Katie A
  165. Calculus

    Can someone tell me how to do these? Estimate INT from 0 to 1 2/(1+x^2)dx by subdividing the interval into 8 parts, using (i) the left Riemann sum: INT from 0 to 1 2/(1+x^2)dx (ii) the right Riemann sum: INT from 0 to 1 2/(1+x^2)dx (iii) the trapezoid rule

    asked by Jason
  166. math

    If there are 36 buttons in a jar and there are 3 times as many white buttons than red, how many of each are in the jar? What is the equation and how do I solve?

    asked by chad
  167. English

    I have to write an essay on the theme of the short story "All is clam" by Ann Walsh. The story is about a girl who has to take her grandmother, who has alzheimers, to the hosptial. She has difficulty dealing with her grandmother acting very "strange" on

    asked by Raymond
  168. geometry

    write an equation for the line parallel to the given line that contains C. C(-3,7); y=8/9x +7

    asked by Terre
  169. COMPUTER

    Hexadecimal to decimal (4D.C8)

    asked by Sia
  170. Math

    Solve (log base 2, cube root of 2) log2(2^1/3) You transform it into the form above, right? then you cancel the 2s to get 1/3

    asked by Nemo
  171. Math

    log(x+5) = log(3x+2) +1 Solve.

    asked by Nemo
  172. algebra

    write an equation that models the relationship between x and y. x= 1, 2, 3, 4, 5, Y= 2 21/2 31/2 4

    asked by Anonymous
  173. astronomy

    What is the wavelength of electromagnetic radiation that has a frequenc of 3 x 10 16 Hz? In what part of the spectrum does this radiation occur?

    asked by lynn
  174. algebra

    Please please help, this is like the only thing i am having trouble on right now, and no one my my family knows about this stuff. Any help would be great! (: x 3 6 9 12 f(x) 9 18 27 36 Does this relationship show direct linear variation?_______________ If

    asked by Anonymous
  175. Word Problem

    In last Saturdays parade Tom counted a total of 76 bicycles and tricycles, for a total of 227 wheels. How many tricycles were in the parade? i got a 73 x 3 =219 wheels in tricycle 3 x 2 = 6 wheels in bicycle for a total of only 225 wheels im short by 2

    asked by Marko
  176. pop culture

    do you think consolation is true in todays culture

    asked by g
  177. chemistry

    Calculate the molarity (M) of Na+ in a solution prepared by adding 1.00 L of 0.800 M NaHC2O4 and 250 mL of 0.300 M NaHC2O4 . Assume volumes are additive. the answer is 0.700 but im not sure how to go about solving it please help thanks

    asked by BOB
  178. Health

    20. RDAs provide 4 sets of reference values, which are guidelines that recommend amounts of nutrients and other food components, needed to prevent deficiencies, avoid toxicities, and promote best health. -Myth or Fact? I say fact. 29. Which of the

    asked by mysterychicken
  179. Ms Sue help word problem

    In last Saturdays parade Tom counted a total of 76 bicycles and tricycles, for a total of 227 wheels. How many tricycles were in the parade? word problem - Marko, Thursday, September 29, 2011 at 10:31pm i go 75 tricyles x 3 = 225 wheels 1 bike x 2 = 2

    asked by Marko
  180. math/science

    Please can you explain how to do the following: a) a non-smoker with low blood pressure has a plasma chloesterol concentration of 5mmol per litre. Over a period of time this concentration increases to 8mmol per litre. By how many times has this risk of

    asked by peter
  181. Science - Chemistry

    A certain elixir is 92 proof. A proof is twice the volume percentage of alcohol in a blend. Ethanol's structural formula is CH3CH2OH with a molar mass of 46 grams/mole. The density is .79 g/ml. How many liters of elixir must one have in order to have 50

    asked by Ashley
  182. MATH

    WHAT IS THE CORRECT PROPERTY OF MATH FOR XY=YX

    asked by christian
  183. College Mathematics. 3

    (3t+1)/5=(t+7)/10+(t-5)/10 I solved this question through the linear equation simplification timing both sides by the least common denominator. 5 Once I did the the result was > 3t+1= 2t+14+2t-10 T= 3 However the real answer is t=0 Where am I going wrong?

    asked by HM
  184. calculus

    A rectangle is bounded by the x-axis and the semicircle y = ¡Ì36 ¨C x2, as shown in the figure below. Write the area A of the rectangle as a function of x, and determine the domain of the area function.

    asked by Bridgette
  185. Algebra1

    graph of two infinite lines that intersect at a point. One line is solid and goes through the points (0, 2) (negative 2, 4) and is shaded in below the line. The other line is solid, and goes through the points (0, 2) (2, 0) and is shaded in below the line.

    asked by Marla
  186. Calculus

    If f(x)=(3x)/(1+x^2) find f′(4). Use this to find the equation of the tangent line to the curve y=3x1+x2 at the point (4,0.70588). The equation of this tangent line can be written in the form y=mx+b where m is: and where b is:

    asked by Allison
  187. Pre-calculus

    The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of theta by finding a point on the line. y= -3/2x in quadrant 4

    asked by Maria
  188. algebra

    x 3 6 9 12 f(x) 9 18 27 36 Does this relationship show direct linear variation?_______________ If so, what is your k value?

    asked by Anonymous
  189. algebra

    Help would be greatly appreciated!!! This gets really confusing for me. Write an inverse variation equation. If y varies inversely with x and y=2 when x=4…. a. Find K. b. Write a general equation. c. Use your equation to find y when x=8 Draw a chart to

    asked by Anonymous
  190. social studies

    5. At the Constitutional Convention in Philadelphia, Madison drafted the plan presented by Virginia Governor Randolph, and William Patterson of _______ presented a plan that was similar to the Articles of Confederation. A. Massachusetts B. New Jersey C.

    asked by Anonymous
  191. Physics

    An engineer needs to determine the distance across a rive whose banks are approx. parallel. Standing on one side of the bank, the engineer can see the other side. The engineer only has a 30 foot measuring tape ( which is shorter than the distance from one

    asked by Janie
  192. 4th grade math

    Please help solved the below problem. Explain in words how to add 352 + 958. Make sure to explain regrouping, if necessary? Thanks, Stella

    asked by Stella
  193. business

    why have japanese car companies been so successful in the united states,germany and india?

    asked by anurag
  194. Algebra

    (log base 2, cube root of 2) log2(2^1/3)

    asked by Blue
  195. Spanish Literatue for Cassie

    Please refer back to your original post, which I JUST found again! http://www.jiskha.com/display.cgi?id=1317246435 Sra

    asked by SraJMcGin
  196. Algebra

    Can someone help me do this problem? Solve: -6(2r+8)=-10(r-3)

    asked by Shelby
  197. help please :)

    All of the following statements about reading skills are true EXPECT: A.Different activites require different types of reading. B.It is not always necessary to perform a thorough reading. C.It is best to use skimming when you look for specific information.

    asked by ciara
  198. Math

    log4x^4 + log4^2 = 3 Solve the logarithmic equation.

    asked by Blue
  199. psychology

    One common aspect of among dissociative disorders is: (a.)memory of childhood abuse. (B.)escape from an anxiety-producing situation. (C.)a painful physical symptom.(d.) departure from reality.

    asked by lachelle
  200. nursing

    How would you prevent misconduct in any reserach study

    asked by jen
  201. Math 116a

    p(x)+x^2-2x+7 What is the domain of P?

    asked by Katie A
  202. Calculus

    Let f(x)=sqrt(3+2x) f′(5)=

    asked by Allison
  203. science

    which solution is made entirely of gases? cough syrup,soda,helium,or clean air.

    asked by tricia
  204. math

    A cuo is 12cm high and has a radius of 2.5 cm. What is the volume of the cup?

    asked by Anonymous
  205. Calculus

    Let f(x)=21−x^2 The slope of the tangent line to the graph of f(x) at the point (−4,5) is ______ . The equation of the tangent line to the graph of f(x) at (−4,5) is y=mx+b for m=______ and b=_______.

    asked by Allison
  206. Math

    At a party, if 1/3 of one sheet cake and 1/6 of another sheet cake remain uneaten, what fraction of a whole sheet remains uneaten .

    asked by Jj
  207. ENGLISH RIDDLE

    AT TIME, I AM UNAVOIDABLE. IM THERE EARLY IN THE MORNING LATE IN THE EVENING. SOMETIMES I GO EASY ON YOU AND OTHER TIMES I MAKE YOU WISH YOU NEVER LEFT HOME. YOU TRY HARD TO IGNORE ME ONCE YOU'RE IN THE MIDST OF ME. I CAN MAKE A SANE PERSON CRAZY. I EXIST

    asked by KIM
  208. Algebra

    Please help me. Provide steps to arriving at the answer. Write the equation in function form. 6x-3y=12

    asked by TryToForgetLove
  209. Physics

    How fast does a rocket need to be going to break free of Earth's gravity? How fast would it have to be going in order to completely leave the solar system? (For the second part of this problem, assume that the Sun is the only mass in the solar system and

    asked by Kaitlyn
  210. lang.srts

    in the book the outsiders why would pony boy feel reluctant to fight at the end of the novel?

    asked by o9
  211. AP European History

    Is the term renaissance a valid concept for a distinct period in European History or was the renaissance just a continuation of the Late Middle Ages? Support your answer.

    asked by Keegan
  212. Chemistry

    Which of these is best described as an acid-base reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH

    asked by Anna
  213. physics

    Two cars are initially moving at constant speeds of 50 m/s (first car) and 30 m/s (second car) along a straight track with the first car being behind. At a certain point (e.g. point A) on the track the first car overtakes the other one. At this very moment

    asked by Chris
  214. Please help!!!!!Physics

    Find the resultant force on (a) the mass m1 = 0.183 kg and (b) the mass m2 = 0.106 kg (the masses are isolated from the earth).. The first mass is 400kg and its 10 cm from the second mass which is 0.183 kg (m1). the second mass is 10 cm away from the third

    asked by kellie
  215. Math

    What two simpler problem can you use to find 9x38?

    asked by Vic
  216. Math

    A regular hexagon has six sides of equal length. If each side of a hexagon is 25mm, what is the perimeter?

    asked by Sam
  217. physics

    Given that x-2 is a factor of x^3-4x^2-2x +k,find k.

    asked by Luc
  218. science

    Given that P(x)=x(x^2-13) +12,express P(x)as a product of linear factors.

    asked by Luc
  219. capitalization and punctuation

    I manage to be satisfy by doing my homework.

    asked by sharon
  220. Statistics

    9 trucks arrive per hour. It takes 6 minutes after reaching the loading station. Two alternatives to modify the situation. One is to change the trucks and add a helper at the loading station at a cost of 50,0000. This would change the arrival time of the

    asked by Sammy
  221. algebra

    Ms. Sue thanks a ton for solveing my last problem. But now I have another one. Can you help??? "Tanya's age is ten years greater than half Aarons age. If the sum of their ages is 55, how old is Tanya? also do you think you could explain how to do this so I

    asked by Trisha
  222. anatomy and physiology

    I need to know what are the skeletal muscles their functions and their locations

    asked by erianne
  223. psychology

    12. It wasn’t a test day, there were no oral reports due, and the class was getting ready to view a video. Regardless of the relaxed nature of the class, Baxter suddenly felt his muscles tighten and his heart rate increase as if he had had a sudden

    asked by lachelle
  224. physics

    a tugboat is pulling a ship backwards with the chandalier at a 2 degree angle. how fast is ship going?

    asked by frank
  225. Math

    y = f(x) = 5 - x - 3x^2 Find the y-intercepts, x-intercepts, and the vertex

    asked by Nemo
  226. Reading

    Compare Dan in Night of the Twisters and Jinathan in Earthquake Terror. How are the characters alike and different?

    asked by Anonymous
  227. Geometry

    how do you solve using midpoint equation if you only have one pair of points? like to use midpoint equation you usually get two points (4,3) and (5,2) but ive been given only one point (3,1). how do i solve for midpoint with only one set of points? help

    asked by Madison
  228. physics

    How long does it take an automobile traveling 62.0 km/h to become even with a car that is traveling in another lane at 37.5 km/h if the cars' front bumpers are initially 138 m apart? in seconds

    asked by Megan
  229. College Math

    There is a question > Write the slope intercept form of the equation for the line passing through the points (-6,3) and (0,7) Now my answer started with > Slope = 7-3/0-(-6) = Slope = 2/3 Then to find the intercept > Y=mx+c 3= 2/3(-6) + c c= 7 In my

    asked by HM
  230. Calculus

    Could anyone please help me figure out the discontinuity that is removable of the following function?? Any help would be greatly appreciated! Thanks in advance!!! f(x)=4x/x^2+x-2

    asked by Eric
  231. Chemistry

    What is the percent zinc in Zn(NO)3 2xZn/189.41]=34.52% am I right

    asked by Monique
  232. astronomy

    Suppose the distance between two stars doubled while the mass of each star doubled as well. What would happen to the orbital period of the two stars?

    asked by lynn
  233. College Math-

    I hope my questions are not very silly. But here is another one I want to understand. Write an equation in slope-intercept form of the line satisfying the following conditions. through (6,7); perpendicular to x=2 My answer was 7/6(X)+2 But in truth the

    asked by HM
  234. human bahavior in organization..ms.sue pls.help me

    please help my answer to correct the grammar thank you. QUESTION 1.How effectively your staff communicates and relates to each other can tell you how much they care for their work and the people around them. MY ANSWER. To be able to instruct them correctly

    asked by jessie
  235. Chemistry

    Which of these is best described as an acid-base reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH

    asked by Anna
  236. physics

    using newtons third law explain what is meant by action and reaction pairs of forcess

    asked by Anonymous
  237. algebra

    Are these lines parallel, or perpendicular 2x+4y=4 4x-2y=1 I think they are niether

    asked by Katie A
  238. 6th grade math

    i have to make a conjecture on if there is more or less than 50 numbers that can be written as product of 3 digit numbers w/o using the number 1 more than once as a factor. Example: 10 can be 1*2*5 and 24 can be 2*3*4

    asked by STUDENT
  239. trig

    All solutions in interval [0,2pi) of cosine theta plus one equals zero

    asked by Anonymous
  240. Math

    Area of a triangular wall with a base of 5ft 9inches and height of 7 ft 2 inches equals how many square feet

    asked by Andy
  241. algebra

    The length of a certain rectangle is 4 m greater than five times it's width. What are the dimensions of the rectangle if its perimeter is 20m??? please help i have no idea how to do this!

    asked by Trisha
  242. English

    Can you please check the following sentences? I just want to make sure that the tense choice is correct. 1.Enter the airport and look at the departures board to check your flight number and the departure time of your flight. 2.Go to the check-in desk to

    asked by Henry2
  243. Science

    Are eukaryotic or prokaryotic cells more advanced?

    asked by Need Help
  244. geometry

    Find the perimeter of the polygon using the distance formula of Triangle ABC with vertices A(3, 5), B(3, 1), C(0, 1)

    asked by fsgdfgsd
  245. algebra

    x=9/10 4x+y=3 4(9/10) +y= 3

    asked by ruth
  246. spanish

    what goes in the blank son or estan aquellos profesores _______ muy inteligentes.

    asked by kaylee
  247. algebra

    The value of a particular car dropped from 25,000 in may 21,000 in october.find the rate of change in value

    asked by babygirl
  248. Science

    A species of bacteria in a laboratory undergoes exponential growth, reproducing every 30 minutes. Starting with one bacteria cell, how many bacterial cells will there be after 3 hours? Would the answer be 64? Thanks

    asked by Shadow
  249. Math

    1/2z - 1/4w = 1/6 1/2z + 1/4w = 1/6 Solve the system of equations algebraically.

    asked by Blue
  250. science

    How to properly format a science procedure paper

    asked by Smartypants
  251. human bahavior in organization.. please help me

    is anyone can help me to get the correct answers for the questions below.please help me thank you 1.How effectively your staff communicates and relates to each other can tell you how much they care for their work and the people around them? my answrs: To

    asked by jessie
  252. Algebra

    What is 7u+3v-4 simplified using like terms

    asked by Aaron
  253. Psychology

    How can you fix a problem if you don't know what it is?

    asked by Sharon
  254. College

    Is Harvard is really the best college ? also what high school grades are require to get to Harvard ??? When I be a 9th grader will they prepare me for SAT ???

    asked by Kim
  255. math

    please give examples of working models on SAS congruence

    asked by njggfg
  256. Sociology

    I am having some trouble with a sociology assignment concerning research methods. I know this is not a subject covered on this site, but I do not know of any sites for help in this area. If you know of any or have knowledge in this area, then your help

    asked by Jackie
  257. Math

    The median and mode are equal for this set of seven whole numbers: {1, 3, 4, 5, 6, 11, x}. The mean is also one of the six known members of the set. What is the value of x?

    asked by Heather
  258. math

    Tony and Tom are brothers.This year both of their ages are prime numbers. Last year both of their ages were composite numbers. Both of their ages will be composite numbers again over the next three years. If Tony and Tom are both teenagers, how old are

    asked by peter
  259. math

    30 minutes before the community pool closed, there were 15 swimmers in the pool . Six minutes later, there were 3 swimmers in the pool. What is the average change per minute in the number of swimmers in the pool?

    asked by ginger
  260. MATH-

    A ROCK IS DROPPED INTO A DRY WELL. THE TOTAL TIME TO REACH THE BOTTOM NAD FOR THE SOUND TO TRAVEL BACK TO THE TOP IS 6.7 S. WHAT IS THE DEPTH OF THE WELL TO THE NEAREST FOOT.

    asked by CHRIS
  261. Chemistry

    Which of these is best described as an acid-base reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH

    asked by Anna
  262. chemistry

    What is the heat evolved of oxalic acid if the temperature change initial is 28 degrees celcius and the final is 29 degrees celcius and the change in temperature is 1 degree celcius,what is the heat capacity of axolic acid

    asked by Tebogo Maphanga
  263. U.S HISTORY

    WHAT LAWS DIRECTED TRADE BETWEEN ENGLAND AND THE COLONIES? PLZ HELP

    asked by I NEED HELP
  264. reading

    Who is EL Grande's child?

    asked by ardonte
  265. history

    I need help picking a easy topic. the topic should be like historical events but i can't think of any. can you please help me!!!!

    asked by maryam
  266. word problem

    The number whose digits have a sum the same as the digits in 36. This number is less than 50 and greater than 36.

    asked by bea
  267. Spanish Lit Take 2

    Ok so because I received a ridiculous response with a link to someone's class syllabi I've decided to re-post my question.... Ok so I understand that Historia del hombre que se convirtio en perro relates to existensialism and the politicla in Argentina.

    asked by Cassie
  268. english

    Rewrite each run or sentence as two sentences or a compound sentence using and, but , or or. 1. Most fish are about a foot long some fish are giants.

    asked by Jess
  269. physics

    True or false, the acceleration of an object and the net force acting on it are proportional.

    asked by Ben Oo
  270. english

    I have an assignment regarding an argumentative essay the title is "drug and alcohol abuse is a serious problem among many young people." I need 1 to 4 pages if you could help me on this.... It would be greatly appreciated. Thanks

    asked by erianne
  271. alcohol counselor

    Select one core function you have learned about so far and describe at least three global criteria. Explain why you believe these criteria are important elements in the substance abuse counseling process.

    asked by cecilia henderson
  272. Math

    How to I do algebra with fractions? 2 -K = 22 5

    asked by Kad
  273. cultural diversity

    1. Advocates of social skills building and role modeling would not be inclined to choose a Western style of play because Western play: A. Has a people focus, not an object focus B. Is impossible for many non-mainstream children to master. C. Lacks a

    asked by Vanessa
  274. problem solving

    place a counter on the left side,place a counter on the right side then color the middle cloud. What is a counter

    asked by Jon
  275. Calculus

    If f(x)=(3)/(x^2) find f′(4).

    asked by Allison
  276. english CITING

    hey i tried to do the following hope there correct this time my work is the last the upper from my work is the original one that i need to correct Source C: An article in the Chicago Tribune entitled “Happiness is Contagious, New Study Finds.” It was

    asked by Anonymous
  277. algebra

    Any help with this would be great! Graph this absolute value equation. |x + 1| - 2 = y A chart has been provided for your use. x- y-

    asked by Anonymous
  278. Chemistry

    Which of these is best described as an acid-base reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH

    asked by Anna
  279. geometry

    true or false : The supplement of 59˚ is 120˚.

    asked by Hailey
  280. Algebra

    comlete the table by continuing this relationship between x and y. x 1 2 3 4 5 y 2 2 1/2

    asked by Anonymous
  281. Physics

    I need help figuring this out. I am asked to write about similarities of two different ways of determining the value of g. One of them is using the slope of the line, and one of them is using the average. Each method used the same L and T values.

    asked by Help
  282. math

    a 4 foot by 8 foot panel, the top of wich is located 18 foot below the water line on a dam wall is subject to how much forec? ( assume the panel is oriented with the long side horizontal)

    asked by Anonymous
  283. Chemistry--Pretty simple question

    You dissolved a solute in some water to make a solution. If you had needed to know how much solute dissolved, how could you have determined this? I was just guessing of using a scale, but there must be some other way.

    asked by -Untamed-
  284. English

    I need help with the following qestions thy have to do with Subject and Verb Recognition.It says identify the subjects of the followig sentences by underliing them once. Identify the verbs by underlining them twice. 1.Betty visited a television studio

    asked by Melissa Roberge
  285. Algebra

    ln x^2(x+1)/x+2 Write in terms of ln(x), ln(x+1), and ln(x+2)

    asked by Blue
  286. 6th grade science

    what are two objects with the same volume. why does one feel heavier?

    asked by DeDe
  287. MBA

    Analyze the following portfolios performance using Jensen index, Treynor index and Sharpe index versus the market: Observed Rate of Return Beta (β) Residual Variance Magic fund 15% 1.5 0.02 Shanti fund 10% 0.5 0.00 Risk-free rate of interest is 50%,

    asked by lakshmi
  288. science

    A cannon ball is fired straight up into the air at a speed of 80 ft/sec from a height of 2 ft. a)when will be the cannon ball be 98 feet in the air. b) when will the cannon ball hit the ground?

    asked by muthu
  289. math

    Mr. Hobbs was just about to take out a home mortage of $120,000 for 20 yrs at the rate of 10.0% compounded monthly. The monthly payments would have been $1158.03. But a competitive bank offered him a 30 yr mortgage at 9,5% which has monthly payments of

    asked by Blaire
  290. Chemistry

    I have to put the correct complete and balanced equation for Li(s) + N2(g) Li(s) +N2(g) --- LiNi2(s) I think I'm correct what do you think

    asked by Monique
  291. physics

    Measuring in foot pounds of toque what pressure can the world’s strongest man exert by pulling on an object?

    asked by Phill
  292. Physical science/football/algebra

    suppose that Andrew is running down the field at 8 yards per second and then cuts right running 6 yards per second. He executes this maneuver in 0.5 seconds. Calculate his acceleration

    asked by Mercedes
  293. English

    I forgot to include the following examples.I urgently need to know if they are possible. 1) I usually ride my bike to school. My father drives his car to work. You can drive at 50 kilometers per hour on an Italian urban road. 2) You can drive at 130

    asked by Henry2
  294. Chemistry

    Li(s) + N2 6Li(s) + N2 ==> 2 Li3N Li =6. Li =6 N= 2. N =2 Am I correct now

    asked by Monique
  295. social studies

    what happens on sadie hawkins day

    asked by jennifer white
  296. calculus

    Let h(x) = ( x2 + 2 if x > 2 ��mx if x  2 (a) Find the value of m that will make h continuous everywhere. (b) Using the value of m you have found to determine limx!2 h(x)

    asked by Salena
  297. Math

    Let f(x)=sinh^−1(6x). Then f(x) can be written in the simplified form (Ax+B)/(sqrt(Cx^2+D). What are the values of A,B,C and D? Again, please show me how to do this. Thanks

    asked by Sara
  298. math

    3200000*0.064 in scientific notation

    asked by Mercedes
  299. math

    a piece of fabric is cut into 12 equal lengths with 3 inches left over. Define a variable, and write an expression for the length or the original piece.

    asked by pedro
  300. ECONOMICS

    Could you recommend a video for me to understand socialsm communism capitalism for 7th grader to udnerstand i need to see visual representation of each concept

    asked by MARKO
  301. astronomy

    suppose the sun were twice as massive a it actually is. What would be the orbital period of a planet at a distance of 10 AU from the sun?

    asked by lynn
  302. Math 116A

    Solve 7x¡Ý21 I think it is {x©¦x>or equal to 3}

    asked by Katie A
  303. Math 116A

    Solve 7x¡Ý21 I think it is {x©¦x>or equal to 3}

    asked by Katie A
  304. math

    if i have a 90 length and a 40 width inch of a house and i want to add tiles so i get a 16 inch by 16 inch tile for a "perfect square" how may tiles will i need

    asked by racuel
  305. Social Science

    Suppose a friend of yours suggests that poor people and affluent people have different rates of involvement in marihuana use. You will interview 100 adults outside of Grand Central station and you will ask them some questions. How involved are you in

    asked by Dana
  306. calculus

    pleeeeeeas help meeee i used an online integral calculator and got an answer which says -1/2cot(x^2) but i don't know how to get there. the problem is "integral{xcsc^2(x^2)}

    asked by mo
  307. Geometry

    need to find x x+153=130+2x+23

    asked by Janet
  308. math

    can anyone help me with this problem Divide (35b^3+18b^2+32b+41)

    asked by Lois
  309. Health

    20. RDAs provide 4 sets of reference values, which are guidelines that recommend amounts of nutrients and other food components, needed to prevent deficiencies, avoid toxicities, and promote best health. -Myth or Fact? I say fact. 29. Which of the

    asked by mysterychicken
  310. math

    the sum of 13 consecutive integers is 26. what is the largest of the integer

    asked by Anonymous
  311. 6th grade math

    what is 1/3 of 3/2? is that means multiply??? or devide???

    asked by Kate
  312. Math

    Four couples have purchased ticket to the school play. Their sear are next to one another in a single row. If each couple sits side by side, how many seating arrangements are possible? (I came up with 24. correct??)

    asked by Monique
  313. Math

    Jusity 7+2x+(-6)+5x

    asked by Kierra
  314. math

    how can you tell where the absolute value of (x^2-1) is differentiable?

    asked by t
  315. Calculus - - Dividing Radicals

    For the radical symbol, I'll just make a v. 3V240/V108 V240 = 4V15 V108 = 6V3 4V15/6V3 = ??? I am able to divide 3 into 15, and I get 5. But I cant do the same with 4 and 6 because they don't go into eachother evenly, and I can't reduce them either,

    asked by -Untamed-
  316. geometry

    how did you get 29/3 for C write an equation for the line parallel to the given line that contains C. C(-3,7)y=8/9x +7

    asked by Terre
  317. Math

    Let f(x)= (sqrt(25−x^2))+5 arccos (x/5). Then f(x) can be written in the simplified form − [(x+c)/mx+n)]^p. What are the values of c,m,n and p? Please tell me how to do this question. Thanks

    asked by Sara
  318. writing

    hi what is an on-page word? And where can it be found?

    asked by xavier 6th grader
  319. math

    Explain how you would use anumber line to round 148 to the nearest ten

    asked by Dilyan
  320. math

    what is 1,000m3 mean. how do it get to the answer of 96,050 x 1,000 m3.

    asked by courtney
  321. English

    I corrected sentence 3 as you told me. I just wanted to know if sentence 2 is possible and if "tollbooth" is used. 1) I usually ride my bike to school. My father drives his car to work. You can drive at 50 kilometers per hour on an Italian urban road. 2)

    asked by Henry2
  322. WORD PROBLEM

    In last saturdays parade. Tom countged a total of 76 bicycles and tricyles for a total of 227 wheels. how many tricycles were in the parade?

    asked by Marko
  323. music

    an acrostic poem on rhthym

    asked by Imogen
  324. english/usgov URGENT

    can you guys help me write a conclusion for this and also help me elaborate my essay better. I've worked so hard and it's due tomorrow Politicians can't agree on how to create more jobs and this is a major problem. The U.S. economy is in trouble because it

    asked by Harold
  325. math

    A building is 4 feet higher than twice the height of a nearby tree. If B represents the height of the building and t represents the height of the tree,

    asked by dajanai
  326. math

    5 items = a mean of 98 6 items =mean of 102 possible anwers 25,24,117,122 please show how to do

    asked by Robert
  327. Sociology

    Define Sexual Selection?

    asked by Casey
  328. Chemistry CONFUSED

    Ok I'm really confused on the question I asked how many CO2 molecules can be made with 0.500 mol of oxygen atoms. Please help with setting this up

    asked by Monique
  329. science

    nonvascular plants water passes from what

    asked by lynn
  330. physics

    why does saturn have smaller density than earth and mars which is smaller than saturn?

    asked by anonymous
  331. understanding psychology

    when physical energy has resulted in a response in a sense organ, it is clear that:

    asked by shan
  332. Chemistry

    What is the mass of 0.0065 mole of ruthenium 6.5 mol Ru x101.07g Ru/1mol Ru = 0.656g Ru Or is it 0.66g Ru

    asked by Monique
  333. algebra

    how far can you simplify7(3-6y)

    asked by rob
  334. math

    simplify 20 minus 16 divided by 4 times 5 plus 10

    asked by shawn
  335. English

    1. Q1: What kind of work Orbis people have done so far: - They have traveled to underdeveloped countries to provide free eye surgery. 2. Q2: What kind of work have Orbis people done so far?: - They have traveled to underdeveloped countries to provide free

    asked by rfvv
  336. Math

    I am a number with the same number of tens as ones. The sum of my digits is less than 5. Is am a number greater than 15. What number am i?

    asked by Zoe
  337. english

    what are some example of overcompensating

    asked by rosa
  338. English

    Mnemonics of word "teacher" is. My teacher is absent because she has ache. I want mnemonics of elephant,and often

    asked by Bilal
  339. Math 116

    if I solve this by substitution 8x+7y=-13 x=29-7y I end up with -3.8 But I think there is no solution

    asked by Katie A
  340. Science

    Can someone please help Thank you. What are the main goals and strategies of green intelligence?

    asked by John
  341. math

    3(20-12)+8 what is the answer to this problem?

    asked by kobi
  342. math

    solving equation 20x-7=2+17x

    asked by kathie
  343. english

    in at least two well developed paragraphs, describe two events during the civil right movements that cause dreams to be deferred.you must have at least 2 evidence from 2 different documents to receive full credit. HELP!

    asked by help me days left!
  344. hsl

    i can play tomarrow...this is write sentence or not

    asked by nazo
  345. math

    what would 6% sales tax on $2.59 be

    asked by jeassica