Questions Asked on
October 14, 2010

  1. Physics

    A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.24 and the push imparts an initial speed of 3.8 m/s?

    asked by John
  2. Physics

    An elevator in a tall building is allowed to reach a maximum speed of 3.3 m/s going down. What must the tension be in the cable to stop this elevator over a distance of 3.4 m if the elevator has a mass of 1330 kg including occupants?

    asked by John
  3. CHEM- solution/freezing piont

    a solution of sulfur (2.560g) in naphthalene (100g) freezes 0.68K lower the freezing point of pure naphthalene (353.10K). for naphthalene, Kf= 6.8K kg mol. calculatem the molecular formula of the sulfur dissolved in the naphthalene?

    asked by lulu
  4. CHEMISTRY

    brass is a subtitutional alloy consisting of a solution of copper and zinc. a particulae sample of red brass consisting of 80% copper and 20% zinc by mass has a density of 8750kg/m^3. a. what is the molality of zinc in the solid solution and B. what is the

    asked by lulu78
  5. 8th grade

    this is a algebra pizzazz question what happened to the glass blower who inhaled?

    asked by victoria wh
  6. CHEMISTRY- vant hoff

    a 0.100m k2so4 solution has a freezing point of -0.43 degrees. what is the van hoff factors for this solution? kf=1.86degree/m? 0.77 3.0 1.0 2.3 i have used the equation dT=iKfm and get -2.3?

    asked by lulu
  7. chemistry

    How many silver atoms are there in 3.88g of silver

    asked by ria
  8. economics

    The following information applies to the market for a particular items in the absence of a unit excise tax: Price($ per unit) Quantity Supplied Quantity Demanded 4 50 200 5 75 175 6 100 150 7 125 125 8 150 100 9 175 75 According to the information above,

    asked by Anonymous
  9. 2nd grade reasoning

    my ten digit is double my one digit. i am less than 70 and greater than 60. what number am i

    asked by san miguel elementary
  10. physic

    Search: The barrels of the 16 in guns (bore diameter = 16 in. = 41 cm) on the World War II battleship U.S.S. Massachusetts were each 15 m long. The shells each had a mass of 1050 kg and were fired with sufficient explosive force to provide them with a

    asked by Anonymous
  11. chemistry

    Imagine that you have been asked to prepare 500ml of a 0.25 mol L solution of Sodium Hydroxide, NaOH. Describe how you would prepare this solution. Include any calculations that you would perform.

    asked by Dexter
  12. trig

    wha tis the exact value of sin 9pi/4

    asked by kia
  13. Algebra

    a rectangle with perimeter of 198 cm is divided into 5 congruent rectangles. What is the perimeter of one of the five congruent rectangles? i got the expression 5w + 4L = 198 the rectangle has two smaller rectangle on the top facing horizontally on the top

    asked by Kevin
  14. Geography/History

    How do command economies and market economies affect a worker's life?

    asked by Cassie
  15. CHEMISTRY

    calculate the number of moles of solute present in 124.0g of a solution that is 6.45% glucose by mass.

    asked by lulu
  16. Chemistry

    What is the mass, in grams, of each of the following? 44.3 mol Xe

    asked by Lisa
  17. Chemistry

    What mass of electrons would be required to just neutralize the charge of 3.9 grams of protons?

    asked by Alyssa
  18. Chemistry

    A sample of gas collected over water at 42 C occupies a volume of one liter. The wet gas has a pressure of 0.986 atm. The gas is dried, and the dry gas occupies 1.04 L with a pressure of 1.00 atm at 90 C. Using this information, calculate the vapor

    asked by Bree
  19. physics

    a skydiver who weighs 500N reaches terminal velocity of 90 km/h. the air resistence on the diver is then... a)90N b)250N c)410N d)500N e)none of these EXPLAIN PLEASE :)

    asked by katella
  20. physics

    In Rutherford's famous scattering experiments that led to the planetary model of the atom, alpha particles (having charges of +2e and masses of 6.64 10-27 kg) were fired toward a gold nucleus with charge +79e. An alpha particle, initially very far from the

    asked by Mike
  21. physics

    In Fig. 8-49, a block slides down an incline. As it moves from point A to point B, which are 3.0 m apart, force acts on the block, with magnitude 3.8 N and directed down the incline. The magnitude of the frictional force acting on the block is 5.3 N. If

    asked by Anonymous
  22. Intro to Science

    A rock with a Weight of 156.8 newtons falls 5 meters. What potential energy does it have left before the end of its fall?

    asked by Chris
  23. Chemistry

    3.57×10−2 mol Ba Express your answer using three significant figures

    asked by Lisa
  24. Physics

    A man with a mass of 65 kg stands up in a 64-kg canoe of length 4.0 m floating on water. He walks from a point 0.75 m from the back of the canoe to a point 0.75 m from the front of the canoe. Assume negligible friction between the canoe and the water. How

    asked by Gina
  25. Chemistry

    An excess of aqueous AgNO3 reacts with 24.5 mL of 5 M K2CrO4(aq) to form a precip- itate. What is the precipitate? 1. AgNO3 2. Ag2CrO4 3. KNO3 4. K2CrO4

    asked by John
  26. calculus, please help

    A fish is reeled in at a rate of 3.2 feet per second from a point 10 feet above the water (see figure). At what rate is the angle between the line and the water changing when there is a total of 25 feet of line out? (Round your answer to three decimal

    asked by kim
  27. Physics

    A 1200 kg sports car accelerates from 0m/s to 27m/s in 10s. What is the average power of the engine?

    asked by mike
  28. calculus

    Find the linearization of the function below at x = π/3.? y=sin(x)/x Your answer should be a linear function of x where the coefficients are accurate to at least two decimal places. You can enter π in your answer as "pi" (without the quotes). I am not

    asked by Vick
  29. physic

    Eight books, each 8.5 cm thick with mass 1.3 kg, lie flat on a table.How much work is required to stack them one on top of another?

    asked by Anonymous
  30. calculus

    Find the linearization of the function below at x = π/3.? y=sin(x)/x Your answer should be a linear function of x where the coefficients are accurate to at least two decimal places. You can enter π in your answer as "pi" (without the quotes). I am not

    asked by john
  31. calculus

    The half-life of Radium-223 is 11.43 days. If a sample has a mass of 900 mg, find the mass (in mg) that remains after 5 days

    asked by Connor
  32. calculus

    Determine the rate at which the surface area is changing with respect to time at t=2 min, assuming that r = 3 at t = 0 Assume that the radius r of a sphere is expanding at a rate of 14 in / min. Its surface area is 4(pi)r^2 Ds/dt= 4pi2rdr/dt i got

    asked by Help asap!! plz
  33. Physics 111

    A 66 kg diver steps off a 13 m tower and drops from rest straight down into the water. If he comes to rest 5.0 m beneath the surface, determine the average resistance force exerted on him by the water.

    asked by christoph
  34. READING

    Underline each compound subject once and each compound predicate twice. Then write compound subject or compound predicate. 1. swimming and softball are two sports_ in the Olympic Games.= (COMPOUND SUBJECT) 2. The swimmer's_ skill and speed made him a

    asked by 3 GRADE
  35. Check a chemistry answer

    So I think I have done this problem right, I was just wondering if anyone would check over it for me. What mass (in grams) of P2O5 contains 1.20 x 1023 atoms of phosphorus? 1.20E23 atoms of P x (1 mol/ 6.022E23 atoms) x (5 mol O/ 2 mol P) x (1 mol P2O5/ 5

    asked by Tim
  36. Physics

    An empty elevator of mass 2.7x10^2kg is pulled upward by a cable at an acceleration of 1.2m/s. What is the tension in the cable? What would the tension be if the elevator were accelerating downward at 1.2m/s^2?

    asked by Jill
  37. chemistry

    A backpacker carries 2.1 of white gas as fuel for her stove.How many pounds does the fuel add to her load? Assume the density of white gas to be 0.79 . Express your answer using two significant figures

    asked by patrice
  38. calculus

    please help if you can At a sand & gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. The diameter of the base of the cone is approximately three times the altitude. At what rate is the height of the

    asked by kim
  39. Chemistry

    calculate the theoretical yield (in grams) of the solid product, assuming that you use 1.0 g FeC2O4×2H2O and that oxygen is the excess reactant. FeC2O4×2H2O (s) + O2(g) ---> FeO(s) + H2O(g) + CO2(g) Its balanced equation is 2FeC2O4×2H2O (s) + O2(g)---->

    asked by sonya
  40. calculus

    a spotlight on the ground shines on a wall 12 m away. if a man 2m tall walks from the spotlight toward the building at a speed of 1.6m/s, how fast is the length of his shadow on the building decreasing when he is 4m from the building?

    asked by Sasha
  41. geometry

    The side lengths of two different cubes are 36 cm and 45 cm. What is the ratio of the volume of the smaller to the volume of the larger (in simplest form)? Note: These cubes are not drawn to scale.

    asked by Anonymous
  42. math

    Suppose from a population of 50 bank accounts we want to take a random sample of three accounts in order to learn about the population. How many different random samples of three accounts are possible.

    asked by John
  43. algebra

    An executive invests $25,000, some at 8% and some at 4% annual interest. If he receives an annual return of $1600, how much is invested at each rate?

    asked by Jay
  44. math

    2 trains going opposite directions leave at the same time. Train b is 10mph faster than train a. in 8 hours the trains are 960 miles apart. find the speed of each

    asked by Anonymous
  45. physics

    A 0.25 mF capacitor is connected to a 9.0 V battery. What is the charge on the capacitor?

    asked by sam
  46. math

    What is $1500 with 7% of tax?

    asked by Owen
  47. Nutrition

    A liter of perspiration lost by the body represents _____ kcalories?

    asked by Tawny
  48. Chemistry

    Hydrogen and oxygen gas combine explosively to produce water. Write a balanced chemical equation for this process. If 10 mol of hydrogen reacted with oxygen, what volume of liquid water could be produced?

    asked by Elle
  49. Chemisrty

    Calculate the work done when 60.0 g of tin dissolves in excess acid at 1.00 atm and 20°C. Assume ideal gas behavior.

    asked by Amber
  50. Physics

    A skier skiing downhill reaches the bottom of a hollow with a velocity of 20.0m/s, and then coasts up a hill with a 12 degree slope. If the coefficient of kinetic friction is 0.11, how far up the slope will she travel before she stops?

    asked by Jill
  51. calculus

    a ball is thrown directly upward with a velocity of 40 feet/seconds. its height in feet after t seconds is given by h(t)equals 40t-16t squared

    asked by gabby pomle
  52. Math

    find the greatest four-digit number that has exactly three positive factors.

    asked by Emma
  53. chemistry

    What is the effect of the following on the separation of the mixture(hexane and toluene)? a. A soluble, nonvolatile impurity b. a decrease in barometric pressure c. an increase in barometric pressure d. rapid heating rate

    asked by Anonymous
  54. Chemistry

    I know nothing about chemistry, but am wondering if someone could help me with these. 1) Balance this redox reaction using the oxidation-number method. Zn + O2 + HCl ® ZnCl2 + H2O 2) Balance this redox reaction using the half-reaction method. (basic

    asked by Sara
  55. physics

    What is the average force exerted by a shot-puter on a 6.1-kg shot if the shot is moved through a distance of 2.8 m and is released with a speed of 12 m/s?

    asked by John
  56. algebra 2

    Rosalyn works no more than 16 hours a week during the school year. she is paid $10 and hour for tutoring geometry students and $7 an hour for delivering pizzas for Pizza King. She wants to spend at least 6 hours but no more than 8 hours a week tutoring.

    asked by jeanne
  57. phy 111

    A daredevil on a motorcycle leaves the end of a ramp with a speed of 34.5 m/s as in the figure below. If his speed is 32.1 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance.

    asked by blake
  58. PHYSICS

    Leg traction is applied to a patient's leg as shown in the figure below. If the physician has requested a 33 N force to be applied to the leg, and the angle is θ = 60 degrees. what mass m must be used for the object hanging from the massless cable? Image

    asked by Nikita
  59. Math

    Suppose a cost-benefit model is given: y= 5x/105-x Where y is the cost in thousands of dollars of removing x percentage of a certain pollutant. Find the cost of removing each percent of pollutants: 0%, 45%

    asked by lynne
  60. 3rd grade math

    explain how you can use a hundred chart to subtract 12 from 46

    asked by christian
  61. physics

    A large uniform "butcher block" rests on two supports(one support at the left end of the block) and has a weight hanging from its end. The block has a mass of 100 kg and a length of 2 meters. If the hanging weight is 59 newtons, what is the minimum value

    asked by sandhya
  62. physics

    gravity on the surface of the moon is only 1/6 as strong as gravity on earth. what is the weight of a 37 kg object on the earth? The acceleration of gravity is 10m/s answer in units of N

    asked by Anonymous
  63. math

    Assume that showing a car is a Bernoulli trial, and each time she shows a car, there is a probability of 0.25 that the customer will buy the car. The saleswoman has a goal of selling at least one car a week. How many cars must she show so that the

    asked by Hoon
  64. Chemistry

    half life of tritium is 12.5 years. how much will remain after 100 years if you started wit 256 grams?

    asked by Anonymous
  65. Physics

    What is the centripetal acceleration of the Moon? The period of the Moon's orbit about the Earth is 27.3 days, measured with respect to the fixed stars. The radius of the Moon's orbit is RM = 3.85 · 108 m.

    asked by Gina
  66. Persuasive Topic help

    For my speech class we need to make a speech on a persuasive topic that will be interesting and fun to hear. It needs to be a topic that no one ever really talks about, or something that no one really knows about. For example pregnancy is something we

    asked by Rachel
  67. physics

    A large uniform "butcher block" rests on two supports(one support at the left end of the block) and has a weight hanging from its end. The block has a mass of 100 kg and a length of 2 meters. If the hanging weight is 59 newtons, what is the minimum value

    asked by sandhya
  68. Organic Chemistry

    2-methyl-2hexanol is reacted with sulfuric acid at around 800C. The two products formed are 2-methyl-1-hexene (19%) and 2-methyl-2-hexene (81%). Show the chemical equation for this reaction. Explain fully why 2-methyl-2-hexene is the major product. Please

    asked by Deon
  69. FZN

    Your school has contracted with a professional magician to perform. The school has guaranteed an attendance of at least 1000 people and total tickets sales of at least $4400. The tickets are $4 for students and $6 for non students, of which the magician

    asked by connie
  70. Algebra

    Three girls paid $100 each, a total of $300, to share a Motel Room. Later, the desk clerk realizing she should have only charged $250, gives the Room Attendant $50 and asks him to return it to the three girls. Unable to divide the money three ways, he

    asked by Delaney
  71. physics

    Determine the work a hiker must do on a 15.8 kg backpack to carry it up a hill of height h = 13.5 m. The hill is not an even slope but rather an irregular curve as in the figure.Determine also the work done by gravity on the backpack

    asked by Anonymous
  72. calculus

    A. find y' by implicit differentiation. B. solve th equation explicitly for y and differentiate to get y' in terms of x. cos (x) + √y = 5

    asked by Sasha
  73. physics

    A hot air balloon decends toward the ground with a velocity of (2.0 m/s)yhat. A champagne bottle is opened to celebrate takeoff, expelling the cork horizontally with a velocity of (6.0 m/s)xhat relative to the balloon. When opened, the bottle is 6.2 m

    asked by Anonymous
  74. Physics!

    Baseball player A bunts the ball by hitting it in such a way that it acquires an initial velocity of 1.9 m/s parallel to the ground. Upon contact with the bat, the ball is 1.5 m above the ground. Payer B wishes to duplicate this bunt, in so far as he also

    asked by Stacy
  75. Physics

    A 325 kg boat is sailing 15.0 degrees north of east at a speed of 2.00 m/s. Thirty seconds later, it is sailing 35.0 degrees north of east at a speed of 4.00 m/s. During this time three forces act on the boat: a 31.0 N force directed 15.0 degrees north of

    asked by Melanie
  76. math

    suppose both pairs of opposite sides of a quadrilateral are parallel. Which angles of the quadrilateral must be supplementary?

    asked by jessica
  77. Physics

    Assuming that the Earth is spherical and recalling that latitudes range from 0° at the Equator to 90° N at the North Pole, how far apart, measured on the Earth's surface, are Copenhagen (55.67° N latitude), and Rome (41.90° N latitude)? The two cities

    asked by Gina
  78. CHEMISTRY

    Dr BOB can you explain this to me. I am so struggling with this subject. during a typical breathing cycle the CO2 concentration in the expired air rises to a peak of 4.6% by volume. Calculate the partial pressure of the CO2 at this point, assuming 1 bar of

    asked by lulu78
  79. physics

    Two parallel wires in a horizontal plane carry currents I1 and I2 to the right. The wires each have a length L and are separated by a distance d. calculate the following where: I1 = 10A, I2 = 20A, d = 5mm, and L = 2m. What are the magnitude and direction

    asked by Anonymous
  80. Physics

    A bullet with a mass of 55 grams moving with a speed of 100 m/s slams into and wedges in a 1.9 kilogram block of wood supported by a string initially at rest. Which one, conservation of energy or conservation of momentum, can be applied to this situation?

    asked by Fred
  81. Math

    A math book is .78 centimeters thick. What is the width of 21 math books on a shelf?

    asked by TJ
  82. Logic - English-

    A dog is tied to a leash 15 feet long. The dog wants to get to a bone that is 20 feet away. How will he get to the bone?

    asked by Rebbeca
  83. Physics/Calculus

    At a county fair, a boy and two friends bring their teddy bears on the giant Ferris wheel. The wheel has a diameter of 14.8 m, the bottom of the wheel is 1.8 m above the ground and its rim is moving at a speed of 1.0 m/s. The boys are seated in positions

    asked by Donny
  84. algebra

    find the value of 7n when n is 7565

    asked by jazmine
  85. calculus

    "How fast is the area of the triangle formed by the ladder, the house, and the ground when the base of the ladder is 7 ft. away from the wall? Given h=24ft. dh/dt=-7/12ft. per sec. b=7 (base) db/dt=2ft. per sec. d/dt[A=1/2bh] How would you derive this with

    asked by Guy
  86. math

    in a triangle,the largest angle is 29 degrees more than the smallest.The third angle is 13 degrees larger than the smallest. What is the smallest angle in the triangle?What kind of triangle is it? and show work please.

    asked by kayla
  87. Physics

    A centrifuge in a medical laboratory rotates at an angular speed of 3500 rpm (revolutions per minute). When switched off, it rotates 70.0 times before coming to rest. Find the constant angular acceleration of the centrifuge. (Assume the initial direction

    asked by Gina
  88. 3rd grade

    write a six-digit number in which the digit 4 has the value of 40,000

    asked by choconcung
  89. Math

    I have a series of questions that I did. They lead up to the last question I can't solve. Could you check my math and help me with the last question? Thanks! a) Let a be the point (2,3). Compute the distance from Origin 0 to A answer: a^2 + b^2 = c^2 3^2 +

    asked by Shane
  90. Physics 111

    While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 62 kg person develops a power of 67 W during a race, how fast is the person running? (Assume a running step is 1.5 m long.)

    asked by Blake
  91. Chemistry

    Which compound on the left, when dissolved in water, does not produce the corresponding compound(s) on the right? 1. N2O5 -> HNO3 2. CaO -> Ca(OH)2 3. NaH -> NaOH + H2 4. SO2 -> H2SO4 5. Cl2O7 -> HClO4

    asked by John
  92. english

    Identify the pronouns in each sentance. Then decide if its nominative (N), objective (O), or possesive (P). write your example accourding to the following example Q: My favorite actor is better than yours. A:My: P, yours; P

    asked by camia
  93. physics

    Two archers shoot arrows in the same direction from the same place with the same initial speeds, but at different angles. One shoots at 45 degres above the horizontal, while the other shoots at 60 degrees. If the arrow launched at 45 degrees lands 225 from

    asked by Anonymous
  94. statistics

    what percentage of students studied between 30 and 40 hours? Range 10-50, Mean- 35, standard deviation-5.

    asked by kim
  95. physics

    during 4.0 min a 5.0 a current is set up in a wire,how many coulombs and the electrons pass through any cross section across the wire?

    asked by stephen
  96. Math

    The question is: Fr what value(s) of k will the function f(x)=(kx^2)-4x+k have no zeroes. So for that, the discriminant would be less than 0. 0>D 0>((-4)^2)-4(k)(k) 0>16-(4k^2) 4k^2>16 k^2>4 k>+2/-2 So I know that I'm supposed to graph it with D as one

    asked by Anonymous
  97. College Algebra and Trig

    a rancher has 12,000 feet of fence to enclose 5 adjacent pens. determine the outer rectangular dimensions that result the maximum enclosed area.

    asked by tiffany
  98. Physics

    At a county fair, a boy takes his teddy bear on the giant Ferris wheel. Unfortunately, at the top of the ride, he accidentally drops his stuffed buddy. The wheel has a diameter of 14.6 m, the bottom of the wheel is 1.1 m above the ground and its rim is

    asked by Gina
  99. calculus

    Find the linearization of the function below at x = π/3.? y=sin(x)/x Your answer should be a linear function of x where the coefficients are accurate to at least two decimal places. You can enter π in your answer as "pi" (without the quotes). I am not

    asked by Vick
  100. physics

    A girl makes a jump in the long jump with an initial velocity of 12 m/s. She leaves the ground at 20 degrees above the horizontal. How far is her jump?

    asked by gale
  101. physics

    A girl makes a jump in the long jump with an initial velocity of 12 m/s. She leaves the ground at 20 degrees above the horizontal. How far is her jump?

    asked by gale
  102. calculus

    Find dy/dx by implicit differentiation. sin x = x (1 + tan y)

    asked by Brian
  103. math

    Metal discs for pet collars have a diameter of 4cm. Each disc is 0.1cm thick. How many discs can be made from 1000cm3 of metal?

    asked by Anonymous
  104. physical science

    1000 millimeters are in a meter. How many millimeters do you think are in 2 liters?

    asked by ileana delgado
  105. math

    What is the cube root of x to the 7th power?

    asked by Natalie
  106. Physics

    space shuttle travels at about 7.4581x10^3 m/s. An astronaut takes about 1.5933x10^2 ms to blink an eye. How far does the space shuttle travel in that time, expressed to 4 significant figures?

    asked by christine
  107. 8th grade

    What is the meaning of seperation of powers

    asked by beth
  108. English

    What does this mean? Dawn would creep across the Swedish farmland and coast; then it would wash little Denmark with light and move across the North Sea to wake Norway.

    asked by Heather
  109. calculus

    a ball is thrown directly upward with a velocity of 40 feet/seconds. its height in feet after t seconds is given by h(t)equals 40t-16t squared

    asked by gabby pomle
  110. Chemistry

    you are given the equation S2O3 + 2H --> S + SO2 + H2O you mix 25 ml of HCl with a concentration of 2 mol/L with 5 mL of Na2S2O3 with a concentration of 0.3 mol/L. what is the concentration of S2O3 and H?

    asked by Samantha
  111. intro to calc

    if the pool is being filled at a rate of .8ft^3/min, how fast is the water rising when the depth at the deepest point is 5ft?

    asked by John
  112. General chemistry

    What mass of electrons would be required to just neutralize the charge of 2.7 of protons?

    asked by Nadine
  113. social studies

    what is the human-environment interaction in arctic? movements in the Arctic? human habitats in the Arctic? civilizations & ppl influenced?

    asked by 454
  114. Organic Chemistry Lab

    For the "ISOLATION OF CHLOROPHYLL AND CAROTENOID PIGMENTS FROM SPINACH" we have to do a purification scheme and I was wondering what dissolves in hexane out of pigments, water, sugars,and starch. I know that water doesn't, but the pigments does, but what

    asked by Linrosa
  115. 10th grade

    The ultimate goal of all the explorations launched by the Europeans from the fourteenth century onward was

    asked by bridget
  116. Calc Please Help

    Are these correct? lim x->0 (x)/(sqrt(x^2+4) - 2) I get 4/0= +/- infinity so lim x->0+ = + infinity? and lim x->0- = + infinity? lim x->1 (x^2 - 5x + 6)/(x^2 - 3x + 2) I get 2/0, so lim x-> 1+ = - infinity? and lim x->1- = + infinity? lim h->0

    asked by Chelsea
  117. Child development part 2

    15. Observation reports need to make a clear distinction between the description of behaviors and the ____ drawn from the observation? 18. How can a caregiver best help a school-aged who is unsure of assignment instructions given by the teachers?

    asked by Leyanet
  118. English

    Can you please check the following sentences? I really hope you can have a look at them. 1) The King of Sicily gave a jeweller some gold and asked him to make a crown from it. In order to make sere the jeweller used only gold (?), the king went to ask

    asked by Franco
  119. math problem solving

    mr. mancho, my great dane, ate 125 hot dogs over a five-day period. each day he ate seven more hot dogs than on the previous day. how many hot dogs did he eat on the first day

    asked by nikki
  120. math

    Train leaves a stationa traveling at 60 miles per hour. Eight hours later train B leaves the same station traveling in the same direction at 80 miles per hour. How long does it atke for train B to catch up to train A.?

    asked by Matt
  121. arithmetic

    Two arithmetic progression have thd same first and last terms.the first arithmetic progression has 21 terms with a common difference of 9.How many terms has the other arithmetic progression if its common difference is 4?working and answer.thans

    asked by William
  122. calculus reposted

    Given the graph of f(x) find the graph of 2 f( -3x - 2) - 4 Is this correct??? First, compress the graph horizontally by 3. Second, reflect the graph over the y-axis. Third, shift the graph 2 units to the right. Fourth, stretch the graph vertically by 2.

    asked by Blake
  123. english

    edit the following sentence with pronoun case:"the shower of sinking bricks caused he and his diving partner to race away from the collapsing seawell."

    asked by kelsy
  124. physics

    how do i convert my weight to Newtons?

    asked by anonymous
  125. Physics- Newton's 1st and 2nd Law

    Please help me :( Briefly explain the following scenario's using Newton's first law. a) Trevor wants to tow Kevin's car with his truck. He attached a small tow rope between the vehicles and leaves the rope slack (loose). Trevor quickly accelerates forwards

    asked by Emily
  126. EDU310

    What credential must you possess to obtain a teaching certificate in Florida:

    asked by Anonymous
  127. math

    A group of friends took a bus trip. Each traveler gave the bus driver a tip using the same nine coins. The total tip was $8.41. How many nickels did the driver receive?

    asked by October
  128. physics

    a ball rolls off an incline at an angle of 30 below the horizontal at a velocity of 22m/s. how far from the base will the ball hit the floor if it lands in 3s?

    asked by jane
  129. Chemistry

    Congratulations! You have discovered a new element called Bhauzium (Bz). The average atomic mass of Bz was found to be 348.72 amu and its atomic number is 123. a) if the atomic masses of three isotopes of Bhsuzium are 342.92 amu, 356.43 amu (6.52%), and

    asked by Samantha
  130. math

    A student's scores on four math tests were 89,92,95, and 85. What will he need to make on the 5th test to have an average of 93? is this possible? HELP!

    asked by Kenya
  131. Physics

    A track athlete runs exactly one complete lap of the track, 400 m circumfrence, in 4.02x10^1 seconds. What is the velocity of the athlete , to two significant figures, if they are assumed to run with a constant velocity for the entire time?

    asked by annonomus
  132. math

    Brenda's dog is 5 times as long as Hugh's dog. Together the dogs are 48 inches long.How many inches long is Hugh's dog?

    asked by pamela
  133. math

    express 55 minutes as a fraction of 1 1/3

    asked by Kris
  134. College Physics

    A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 96.5 kg. The mass of the rock is 0.250 kg. Initially the wagon is rolling forward at a

    asked by Jordan
  135. geometry

    Find the volume of a barber's pole having the shape of a right circular cylinder of radius 5 in. and height 29 in. topped by a sphere of the same radius. Round to the nearest tenth, if necessary.

    asked by Anonymous
  136. Substitution and Income Effects

    Managers are very interested in how a consumer makes a choice among alternatives. In this exercise, we ask you to consider the amount of money you spend purchasing gasoline to operate your automobile for a month and any alternatives available to you

    asked by raja
  137. PHYSICS

    An object of mass M = 1,284 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50 degrees with the horizontal. What is the magnitude of the force that is exerted by the inclined surface on the object? (I'm using

    asked by Mar
  138. English

    1. I have read the book the Secret. 2. I have read the book the Secret before. 3. I have read the book the Secret and know the content about it. (What is the meaning of #1? Does #1 mean #2 or #3?)

    asked by rfvv
  139. Math

    what is the total width of 21 math books that are .78 centimeters thick

    asked by TJ
  140. English

    Can you please check the grammar in the following sentences? Thank you. 1) I have football training (or I go to football practice?) twice a week. We play a match against another local team on Saturdays. 2) Mickey is late for his dance class. Mrs Winter

    asked by Franco
  141. English

    I'm writing an essay on the book Number the stars by louis lowry. My three body paragraphs are going to include imagery, figurative language, and symbol. What is an example of a topic sentence for my paragraph about imagery.

    asked by Kylan
  142. math

    express 55 minutes as a fraction of 1 1/3 hours

    asked by Kris
  143. algebra

    Althea is 5 years older than Leah, and Leah is 4 years older than Jessica. The sum of thier ages is 34. How old is Althea?

    asked by Tiana
  144. math

    There are 16 tennis players in a single elimination tournament. How many tennis mathches will be played during the tournment?will it be 8 or 2 if not..what?

    asked by somej
  145. Psy 340

    What are some examples of theories concerning sexual orientation, hormones, and the brain? Which one do you feel is most accurate? Why?

    asked by Sue
  146. College Calculus 1

    We have to find the first and second derivative of f(x)=x^(2/3)(6-x)^(1/3) I have the first derivative as being (4-x)/(x^(1/3)(6-x)^(2/3)) And that I know is right. The second derivative is -8/(x^(4/3)(6-x)^(5/3)) I did all the work but I am not getting

    asked by Please help
  147. READING

    Rewrite each sentence, placing commas where they are needed. Uderline each compound subject once compound predicate twice. 1. The bat and glove(C.S) are in the bench.(C.P.) 2. The ballplayer swimmer, and runner, come(C.S.) from the same town.(C.P.) 3. The

    asked by LUZ
  148. algebra

    a celluar phone company offers a contract which the cost c, in dollars, of t minutes of telephoning is given by c=0.25(t-600) plus 57.95 where it is assumed that t is > or eqaul to 600 minutes. what time will keep cost below 102.45 and 135.20?

    asked by Anonymous
  149. Physics

    A worker at the top of a deep well, drops a hammer into the well. The hammer takes 2.81x10^-2 minutes to fall. How deep is the well?

    asked by peter
  150. Physics

    A dynamite blast sends a piece of rock (shatter) straight upwards. After 2.31x10^0 s the piece of rock has a velocity of 1.56x10^1 m/s. Assuming there is no air resistance, what is the initial velocity of the rock, to two significant figures?

    asked by peter
  151. math

    neglecting wind restitance,the height,h,in feet,of a sky diver,t,seconds after she jumps from an airplane 1,648 above the ground is given by the formula h=-16ft square +1648.if the parachute opens 4.5 secinds after the sky diver leaveshe airplane,about how

    asked by Fafe
  152. Chemistry

    What are the charges of the ions in an ionic compound containing iron(III) and fluoride ions? a)iron(III)- i got 3+ b) flouride- im not sure on this one c)Write the formula for the compound. (Type your answer using the format CO2 for CO2.) - Fe3F2... i rly

    asked by Hannah
  153. Probability

    A survey finds that 38% of kids like tv, 24% like radio, and 13% like both. A.Find percent of kids that like tv but not radio. B.Find the percent of kids that like neither tv or radio. C.Find the percent of kids like either tv or radio D.Find the

    asked by Tom
  154. Biology

    The ___ from photosynthesis is a reactant for glucose metabolism. A. H2O B. ATP C. lactic acid D. CO2 E. O2 Thanks.

    asked by Bee
  155. math

    what percent of 250,148,571 is 136,800,000

    asked by Jasimine
  156. Math

    Gravity on the moon is about one-sixth of gravity on Earth. An astronaut standing on a tower 20 feet above the moon's surface throws a ball upward with a velocity of 30 feet per second. The height of the ball at any time t (in seconds) is h(t) = -2.67t

    asked by Anonymous
  157. Physics

    A 0.400-kg ball is dropped from rest at a point 1.80 m above the floor. The ball rebounds straight upward to a height of 0.730 m. What are the magnitude and direction of the impulse of the net force applied to the ball during the collision with the floor?

    asked by Sarah
  158. algebra

    The Yankee Clipper leaves the pier at 9:00 am at 8 knots. A half hour later, The River Rover leaves the same pier in the same direction traveling 10 knots. At what time will the River Rover overtake The Yankee Clipper?

    asked by Roxy
  159. statistics

    What percentages of students studied 30 hours or less? These hours ranged between 10-50 hours with a mean of 35 and a standard deviation of 5.

    asked by kim
  160. family math problem solving

    ms. jones my great cat ate 125 hamburgers over a five day period. each day she ate seven more hamburgers than the previous day. how many hamburgers did she eat on the first day

    asked by jackie
  161. algebra

    i have a homework problem that i don't know how to do it the question to the problem says: Find the value of expression.identify the property used in each step and the problem is:7(10-1x3)

    asked by alejandra
  162. History

    was the Reign of Terror necessary to preserve the French Revolution?

    asked by Emma
  163. Math

    How do I find the rule when the number is descending 9,6,3,0

    asked by Ursula
  164. 5th grade

    Math. How can I make up a data set of at least 12 numbers that have the following landmarks, maximum 18: mode: 7, range: 13, median: 12?

    asked by caitlin
  165. English

    1. I am looking for a dress to wear to the party. 2. I am looking for a dress to wear at the party. 3. I am looking for a dress to wear to the party. (Which one is correct? Which preposition do we have to use before 'the party'?)

    asked by rfvv
  166. Physics

    a circuit contains a 9v battery and two 1 ohm bulbs. what is the voltage drop across each.

    asked by yUo
  167. READING

    Rewrite each sentence, placing commas where they are needed. Uderline each compound subject once compound predicate twice. 1.Your bat ball and glove,_ are on the bench.= 2. The ballplayer swimmer and runner, come_ from the same town.= 3. The girl can run

    asked by LUZ
  168. physics-non calc

    a hammer was released from rest vi=0m/s taking 1.12 seconds to fall 1 meter. How do you solve that

    asked by charles
  169. 3rd grade

    mr.mancho my great dane ate 125 hot dogs over a five day period. each day he ate seven more hot dogs than on the previous day. how many hot dogs did he eat on the first day.....

    asked by nikki
  170. statistics

    Sample size is 24, Mean rate of 6.50%, Standard Deviation is 1.20. Calculate 90% of confidence interval

    asked by sue
  171. math

    what is the range for 4.987+28.27+0.098

    asked by aly
  172. algebra 1

    Suppose the probability that an American League team will win the World Series is 60%. What is the probability that a National League team will win the World Series in the 5th game? Express your answer to the nearest whole percent.

    asked by pow
  173. Chemistry

    A 30 ounce iron bar at 425 degrees Fahrenheit is placed in 2.00 quarts of water at 80.0 degrees Fahrenheit. What will be the change in temperature of the iron bar in degrees Fahrenheit? (Assume 1/3 heat lost to the surroundings) Specific heat of iron= .473

    asked by Samantha
  174. Business

    What are some of the operations management practices that can help bring manufacturing back to the U.S?

    asked by Kim
  175. Math

    A survey finds that 38% of kids like tv, 24% like radio, and 13% like both. A.Find percent of kids that like tv but not radio. B.Find the percent of kids that like neither tv or radio. C.Find the percent of kids like either tv or radio D.Find the

    asked by Tom
  176. math

    Let f:A->B, where A and B are nonempty, and let T1 and T2 be subsets of B. a.Prove that f^-1(T1 U T2)= f^-1(T1) U f^-1(T2). b.Prove that f^-1(T1 intersects T2) = f^-1(T1) intersects f^-1(T2). I think once I see a I can do b. c. Prove that f^-1(T1) -

    asked by dreww1961
  177. physics

    A person using a ladder supported on vertical wall is 3/4 of the way up the ladder. If the person climbing the ladder has a weight of 980 newtons and the ladder is 4.89 meters long, how far from the wall can the base of the ladder be placed, and not slip?

    asked by sandhya
  178. probability

    68 % of kids watch tv daily. out of 12 kids what is the probability that: a. Exactly six kids watch tv daily b. Six or less kids watch tv daily c. Seven or more kids watch tv daily d. Find the mean for the distribution

    asked by xiong
  179. french

    Can you check these thanks. Part 1 Directions: Répondez selon le modèle. Elle va souvent à Montréal? Oui, elle y va souvent. (As you can see we are now learning the pronoun y) 1. Ils vont souvent à Paris? Answer: Oui, ils y vont souvent. 2. Ils

    asked by Rachel
  180. english

    from civil peace by chinua achebe ehy do the theives help the lwegbus shout for the poice? that's is ironic about what they say and do?

    asked by steph
  181. 5th grade essay of part of plants

    writting outline for 3 paragraph of an essay of part of flower

    asked by genesis
  182. physics

    A person using a ladder supported on vertical wall is 3/4 of the way up the ladder. If the person climbing the ladder has a weight of 980 newtons and the ladder is 4.89 meters long, how far from the wall can the base of the ladder be placed, and not slip?

    asked by sandhya
  183. Algebra 2

    Complete the system for no possible solutions: x+y+z = 7 y+z = ? y+z=?

    asked by BC
  184. Into to Ethics in Policing

    I need to explain the ethcial frameworks used in the movie "A Time to Kill."

    asked by University of Phoenix
  185. Math

    Calculate the simple interest on each amount the total amount at the end. A deposit of $2550.00 that earns 3% interest over 30 months. Pleas show your steps! Thankyou (:

    asked by Vanessa
  186. algebra

    Pythagorean Theorem, The height of sueLo's 5th floor apartment window off the ground is 10 feet longer than the distance from the base of the apartment building to wall. She is concerned that the fire department's 50-foot ladder would not be able to reach

    asked by Ashley
  187. High School

    Please provide me some links to websites where I can buy and download US High School text books. I am now in a UK based school in Asia but I will be moving to America next year. So please provide useful links.

    asked by AJ
  188. calculus

    the graph of f(x) passes through the point (0,6). the slope of f at any point P is 2 times the y-coordinate of P. find f(1)

    asked by Beth
  189. Advanced Algebra 1

    A polygon has a perimeter of 24mm. Find the new perimeter after a scale factor of 1/4 is applied?

    asked by Jordan
  190. high school

    How many revolutions are made by a 28inch bicycle wheel min over one mile

    asked by maria
  191. calculus

    y=3⋅2^x Find the equation of the line tangent to the graph of y at x=1.5.

    asked by jordyn
  192. algebra

    A cube measuring 6.7 cm along each edge has a mass of 78g. Find the density of the cube.

    asked by Matt
  193. algebra

    can somebody tell me how to solve this inequality equation? (a-2)(a-3)

    asked by Joe
  194. 5th grade English

    She will become a physicist one day. Have to identify the verb or verb phrase and then tell if it contains a linking verb or does not. will become=verb phrase contains linking verb

    asked by Jack
  195. sentence writing

    Which sentence below grammatically INCORRECT? Jacob, my best friend, believes that he is as smart as I am. -------------------------------------------------------------------------------- If anyone understands the directions, it is she.

    asked by kimbly
  196. math

    input ouput 2 8 7 3 5 5 0 0

    asked by serena
  197. geometry

    If 9 = (7x)° and 10 = (3x)°, what is the measure of 16 such that x || z?

    asked by Anonymous
  198. 8th grade

    In 2009 the American League’s New York Yankees won the World Series. The Yankees have played in a total of 40 World Series. Of those 40 appearances the Yankees have won 27 championships. Based solely on this data, what is the probability that the New

    asked by pow
  199. calculus

    The graph of f(x) passes through the point (0,3) . The slope of f at any point P is 3 times the y- coordinate of P . Find f(1)

    asked by Connor
  200. IT210

    Identify at least two data structures that are used to organize a typical file cabinet. Post actual pseudocode or code examples of these data structures. Why do you feel it is necessary to emulate these types of data structures in a computer program? For

    asked by Anonymous
  201. science

    In most States, the right to vote was originally denied to all but which one of the following groups?

    asked by Anonymous
  202. physics

    An object of mass M = 911 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50o with the horizontal as shown in the figure below. What is the magnitude of the force that is exerted by the inclined surface on the

    asked by sara
  203. math

    Decide if the statement is true or false, tell why. 24 is a factor of 8

    asked by m
  204. calculus

    a ball is thrown directly upward with a velocity of 40 feet/seconds. its height in feet after t seconds is given by h(t)equals 40t-16t squared

    asked by gabby pomle
  205. American Culture

    Sometmes I have difficulty understanding the questions to complete my assignments. Does pop culture only refer to music? I want to elaborate on the question. Does Pop culture having a greater societal value beyond what is offensive?

    asked by Shay
  206. geo

    can u give me some points on against mosquito fogging because i am in green party i have this points: negative impact on environent human issue but i need two more points to discuss

    asked by anu
  207. English

    I forgot to include the following sentencens.I hope you can check the grammar here,too. 1) Our classroom is lit by neon lights.There are two neon lights hanging from the ceiling which light the room up. 2) Have you been to (or in?) the new suermarket yet?

    asked by Franco
  208. Chemistry

    If you converted a barometric pressure of 30.03, how would you convert to mm Hg and how would you convert that to mm H2O.

    asked by Lorie
  209. english

    What is once in a minute, twice in a moment, and never in a thousand years?

    asked by yUo
  210. social studies

    what are two ways the united states government helped the former slaves after the civil war

    asked by Anonymous
  211. math

    Of the two fractions 15/21 and 19/17 which is smaller?

    asked by Kris
  212. 5th grade

    addition subtraction multiplication and division

    asked by harish
  213. Introductory physical science

    We needed to find the sensitivity of our equal arm balance and the question I need help with is....What are 2 reasons why you need to know the sensitivity of your balance?

    asked by Erin
  214. statistics

    What percentages of students studied 30 hours or less? These hours ranged between 10-50 hours with a mean of 35 and a standard deviation of 5.

    asked by kim
  215. college math

    I if a Thrifty Market has a parking lot with dimension 125 feet by 210 feet. How many square yards is that?

    asked by Kimberly
  216. algebra

    -63 +15s = 14s + 18

    asked by Tom
  217. Biology

    Variation in biology is a) inevitable b) exciting c) the raw material for natural selection d) best described by statistics e) all of the above

    asked by Bala
  218. Physics

    At a county fair, a boy and two friends bring their teddy bears on the giant Ferris wheel. The wheel has a diameter of 14.0 m, the bottom of the wheel is 1.9 m above the ground and its rim is moving at a speed of 1.0 m/s. The boys are seated in positions

    asked by Gina
  219. Economics

    If exports rose by 22.5% what would happen to a country's economy?

    asked by Brogan
  220. mikes

    name the slope and y-intercept of y + 3x = -1

    asked by david mikes
  221. Physics

    A soccer player launches a ball at an angle of 40 degrees, with an initial velocity of 23 m/s. What are the horizantal and vertical for this problem??

    asked by Caleb
  222. social studies

    what happened during the spanish invasion of mexico?

    asked by deisharis
  223. Pre calculus

    use f(x)= { x^2 +5 if x ≤ 1 { -x^2+4x+3 if x>1 to find the answers to the following: 1. f(2) 2. f(4)-f(-2)

    asked by Amy
  224. north america

    How else would have the Anglo-Americans developed economically and politically avoiding their current economic stability?

    asked by cath
  225. english

    sam's essay lacked a clear beginning, middle, and end as well as weak and limited transitions. in which area was sam's essay weak? a. content b. organization c. tone d. mechanics

    asked by jhone
  226. English

    1.I donated the money to the Red Cross. (In this sentence how do you pronounce 'donated'? Do we have to stress the first syllable of the second syllable? Are both OK? Which one is common?)

    asked by rfvv
  227. precalculus

    Find the dimensions of a square cardboard box (open top) that holds 100 cubic inches and is 4 inches deep?

    asked by Liz
  228. English

    Topic sentence: Lowry uses imagery in his novel to make his writing come alive.

    asked by Kylan
  229. chemistry!

    how do we find the grams ppt of the following: 0.500 M CaCl2= 10 mL 0.500 M Na2CO3= 20 mL Ca:CO3= 1:2 grams ppt= ?

    asked by Anonymous
  230. nursing research

    qualitative, quantitative, and outcomes research? under which circumstances is each type of research is most appropriate? give examples of each

    asked by mary
  231. math

    what is the range for 3.89 +42.71 +12.32

    asked by aly
  232. english

    What do you think are the similarities between Cathy Freeman, Deriba Merga and Oprah Winfrey? Please explain to me in details..

    asked by Taylor
  233. calculus

    find the points on the graph of y=secx where the tangent is parrallel to 6y-4x=8. (0 is less than or equal to x and x is less than or equal to 2pi). Use exact values.

    asked by rachel
  234. english

    "In this tongue-in-cheek ironic statement..." is the beginning of a sentence in my essay. Is "tongue-in-cheek ironic sentence" redundent?

    asked by Ken
  235. Physics

    A plane travels with a uniform velocity of 3.399x10^1 m/s for a period of 2.267x10^0 seconds. What distance is travelled during this time, in meters

    asked by christine
  236. Physics

    A track athlete runs exactly one complete lap of the track, 400 m circumfrence, in 4.35x10^1 seconds. What is the speed of the athlete , to two significant figures, if they are assumed to run with a constant velocity for the entire time?

    asked by annonomus
  237. english

    hi i am doing a english essay on the pros of animal testing. I need to find a good statistic on it, mostly about testing on cosmetics. Can someone help me find one because i looked all over google and still cant find one. THank you

    asked by Betty
  238. math

    what is the LCM of 8 12 and 5

    asked by niki
  239. Ms.Sue

    How does she know everything is she one of the tutors?

    asked by niki
  240. Statistics

    What is the simple test of independence?

    asked by STATHOME
  241. science

    if a city was to improve the natural environment of a park what is the best thing to do

    asked by warren
  242. Writing / History

    Compare And Contrast Rosa Parks And Jehan Sadat i need help

    asked by Jonathan
  243. LUZ

    READ the paragraphs and answer the questions. She feels her skates leave the ice. She spins through the air and lands with a glide. The crowd goes wild! After Connie leaves the ice, she looks up at the scoreboard and smileS. Her coach runs to hug her. 1.

    asked by READING
  244. computer information

    Create a flowchart for a program that will sort the top 1,000 customers by their annual purchase amount and print the names and addresses of the top 100 customers, or fewer if there aren’t 100 customers.

    asked by reggie
  245. math

    what is the mathematical expression of 9+4x5 divided by 2 ?

    asked by adrian
  246. math

    5+6x9/3=23

    asked by Anonymous
  247. physical science

    Cheetah is running to eat you at 24m/s. You are south 240 meters away and unaware. How much time do you have?

    asked by ileana delgado
  248. 7th grade

    I need you to help me pick a biome?

    asked by shaunterica
  249. Business

    How can lean manufacturing and near-sourcing help a company gain a competitive edge and prepare for the future?

    asked by Anna
  250. English

    are these right sentences? 1)Shahrayar was all doing this to keep his heart safe. 2) In world literature, we came to know how every story ended by the power of the sword, but this story breaks the tradition and shows human‘s intelligence can also solve

    asked by mujahid
  251. history

    Why was geroge washingtin elected

    asked by niki
  252. algebra

    solving equations -x^2, if x=-1, etc

    asked by mike
  253. Probability help

    The heights of the buildings are normally distributed. The mean of the heights is 275 feet and the standard deviation is 30 feet. A. What is the probability that the buildings height is over 280 feet? B. What is the probability that a sample of 80

    asked by Martin
  254. math

    17x – 42 = -39 i need to show the steps for solving this equation

    asked by Jeninifer
  255. quick ?

    What is meant by the term concrete reality?

    asked by Joe
  256. 4th grade

    How many shapes have a perimiter that's 30 cm?

    asked by Dianna
  257. math

    Shonda owns a bussiness that transfers photos to CD-ROMs. She charges her customers $24.95 for each CD-ROM. Which of these equations could be use to calculate her profit 'p' for creating 'n' CD-ROMs? a)p=(24.95-0.8)n - 575 b)p=(24.95+0.8)n + 575 c)p=24.95n

    asked by Ashley
  258. leadership

    what trits, skills or styles did margret thatcher use effictively? what traits or behaviors got in her way?

    asked by sarah
  259. PLEASE HELP: Chemistry

    How many atoms of element "R" are present in 55.80 g of (AH3)4(R2O3)4 (molar mass = 478.17 g/mol)? Please help. I've tried going (g of molecule/mol)x(1 mol of molecule/ 55.80g)but I'm not really sure what to do with this.

    asked by kathryn
  260. Math - Tangent of a line

    Determine the point on the curve y=x^2(x^3-x)^2 where the tangent line is horizontal.

    asked by Anonymous
  261. english

    I need a list of idioms or just a few

    asked by Bell
  262. math

    f(x)=sqrt(x-2)-4 f(x)=0

    asked by shari
  263. Com 220

    what advice would you provide for students starting this course

    asked by Pam
  264. algebra

    find standard form and slope, if it exists, of each equation y=6x-2

    asked by yo dawg
  265. calculus

    finf y'' by implict differentiation √x + √y = 1

    asked by Sasha
  266. social study

    why did atahualpa order to troops not to fight the spanish

    asked by deisharis
  267. math

    A ball is thrown upward from a height of 100 ft. with an initial velocity of 80 ft/sec. Find the function.

    asked by Rachel
  268. childhood

    should children be served drinks in treated ceramic?

    asked by Anonymous
  269. math

    what is the range for20.751 +2.55 +17.4

    asked by aly
  270. socials 9

    which many people react a fear ub spite of evidence and a good sense. sometimes this creates a ''mob mentality'' that destroys innocent

    asked by erika
  271. math

    simplify the expression: 3(2a+b)-5+4b -5=negative 5.

    asked by Astine
  272. Social Studies

    I need a current event due tomorrow (10-15-10) and my teacher said there needs to be two sides to the subject, and i need help

    asked by Anthony
  273. Algebra

    Determine the number of terms in the expression 14m - 16.

    asked by Jack
  274. Math

    use f(x)= { x^2 +5 if x ≤ 1 { -x^2+4x+3 if x>1 to find the answers to the following: 1. f(2) 2. f(4)-f(-2)

    asked by Amy
  275. 7th grade

    wat its prime number

    asked by mario
  276. science

    i need you to help me pick a biome

    asked by shaunterica
  277. algebra

    d=(1/2)at^2; solve for a. i got a=d/([1/5])t^2) but i don't see that in any of the possible responses: a. a= (2d)/t^2 b. a= 2dt^2 c. a= (dt^2)/2 d. a= d/2t^2 What did I do wrong? & can you please show detailed work?

    asked by Ana-x00
  278. calculus

    f(x)=1-3x when f(x)-f(1)/x-1

    asked by ccct
  279. college

    Using your textbook (Chapter 5), describe the model of consumer buyer behavior. Providing a list of the steps or a graphic of the model is not adequate as you must explain how the process works in the real world using your own words.

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  280. Science

    for anybody:there is evidence that human beings could be a part of the 6th extinction on earth. Do you believe this is true? Why is Why not? Write a statement explaining your beliefs.

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  281. math

    2(b -3)+5=3(b-1)

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  282. 5th grade

    What do you think 24*3.7 is ???

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  283. Math-Calc AB

    e^(-x/2) + xe^(-x/2) = 0 solve for x

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  284. spelling

    what is meaning of groan

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  285. DERIVATIVE!!!

    9(x-5)^2/3

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  286. Math

    486 over -40 in simplest terms! i cannot figure this out

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  287. human resources

    i need 10 simple and advance technology used in woodshop

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  288. ALgebra

    find standard form and slope, if it exists, of each equation 38) y=6x-2

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  289. Math

    {x+6/8 y+2/3}={-9/8 7/k}

    asked by AMy