Questions Asked on
November 9, 2011

  1. Chemistry

    Classify the possible combinations of signs for a reaction's ∆H and ∆S values by the resulting spontaneity. A) Spontaneous as written at all temperatures. B) Spontaneous in reverse at all temperatures. C) Spontaneous as written above a certain

    asked by Jessica
  2. math

    22. Your class hopes to collect at least 325 cans of food for the annual food drive. There were 135 cans donated the first week and 89 more the second week. a. Write an inequality that describes this situation. Let c represent the number of cans of food

    asked by ooooo
  3. chemistry

    which solution has the lower pH? a)0.1 M HCL or 0.1 M HC2H3O2? b)0.1 M NaOH or 0.1 M NH3? c)0.1 M Na2CO3 or 0.1 M NaCl?

    asked by denis
  4. Chemistry

    Strong base is dissolved in 675 ml of 0.200 m weak acid (ka=3.25x10^-5) to make a buffer with a ph of 3.95. Assume that the volume remains constant when the base is added. HA + OH ---> H2O + A^- calculate the pka value of the acid and determine the number

    asked by Alex
  5. Chemistry

    Consider these changes. (a) Hg(l)->Hg(g) (b) 3O2(g)->2O3(g) (c) CuSo4*5H2O(s)->CuSO4(s)+5H2O(g) (d) H2(g)+F2(g)->2HF(g) At constant pressure, in which of the reactions is work done by the system on the surroundings? By the surroundings on the system? In

    asked by Anonymous
  6. Sport

    Why Olympia selected to hold at the ancient Olympic Games?

    asked by Emily
  7. math

    Gloria talked on her cell phone for 320 minutes the first month, 243 minutes the second month and 489 minutes the third month.Her payment package does not allow her to pay per minute;she can only buy packages.If she has to pay $25 for every 200 minutes,how

    asked by phillip
  8. Stats

    Tonya wants to estimate what proportion of the students in her dormitory like the dorm food. She interviews an SRS of 50 of the 175 students living in the dormitory. She finds that 14 think the dorm food is good. a.) What population does Tonya want to draw

    asked by Manda
  9. Physics

    Suppose a planet is discovered orbiting a distant star with 13 times the mass of the Earth and 1/13 its radius. How does the escape speed on this planet compare with that of the Earth? Ve new ------- = ve earth

    asked by Cooper
  10. Math

    Describe how to draw a line that passes through the origin and has a slope of 3/5.

    asked by Jane
  11. Sport please help me i have a test 2morrow

    What are the reasons for the olympic games to be largest of all sporting events?

    asked by Emily
  12. Physics

    A 2.9-kg 12-cm-radius cylinder, initially at rest, is free to rotate about the axis of the cylinder. A rope of negligible mass is wrapped around it and pulled with a force of 20 N. (a) Find the magnitude of the torque exerted by the rope. (b) Find the

    asked by Kayla
  13. Math, Finance

    Parents have set up a sinking fund in order to have $120,000 in 15 years for their children's education. How much should be paid semiannually into an account paying 6.8% compounded semiannually? PMT = FV ____i_____ (1 + i)^n – 1

    asked by Debra
  14. calculus

    Find the number b such that the line y = b divides the region bounded by the curves y = 16x2 and y = 9 into two regions with equal area. (Round your answer to two decimal places.)

    asked by Courtney
  15. PROBABILITY MATH

    From a group of 3 men and 4 women, a delegation of 2 is selected at random. What is the expected number of men in the delegation? Round your answers to two decimal places as needed. Could someone help me with how to do this?

    asked by HM
  16. Sport

    What are the reasons for the olympic games to be largest of all sporting events?

    asked by Lorry
  17. statistics

    about 11% of the population is nervous around strangers. if 2 people are randomly selected, what is the probability that both are nervous and strangers? what is the probability that at least one is nervous around strangers?

    asked by kerri
  18. PROBABILITY MATH

    A batch consists of 12 defective coils and 88 good ones. find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made. Help me.. since it would be replaced would the answer

    asked by HM
  19. Physics

    A communications satellite with a mass of 450 kg is in a circular orbit about the Earth. The radius of the orbit is 2.9×10^4 km as measured from the center of the Earth. Calculate the weight of the satellite on the surface of the Earth Calculate the

    asked by Cooper
  20. physics

    A cooling fan is turned off when it is running at 870 rev/min. It turns 1200 revolutions before it comes to a stop. What was the fan's angular acceleration, assumed constant? How long did it take the fan to come to a complete stop?

    asked by Anonymous
  21. physics

    Suppose you increase your walking speed from 1m/s to 3m/s in a period of 1s. What is your acceleration? a:2m/s b:5m/s c:4m/s d:3m/s

    asked by ashley
  22. physics

    At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with an amplitude of 20.0 cm. It is observed that the maximum speed of the bunch of bananas is 39.6 cm/s. What is

    asked by kate
  23. statistics

    A psychologist wants to estimate the variance of employee test scores. A random sample of 18 scores had a sample standard deviation 10.4. Find a 90% confidence 2 interval for the population variance. What assumption, if any, have you made in calculating

    asked by Janelle
  24. Economics

    Say you are the manager of a perfectly competitive firm selling a product. Your business is making a loss because total revenue is less than total costs. What would you do--shut down or continue to operate? Use hypothetical numbers to explain. Information

    asked by Michelle
  25. Physics help

    A particle moving along the y-axis has the potential eneryg function U = 6 * y3 J where y is in m. What is the y-component of the force on the particle at 0 m? What is the y-component of the force on the particle at 9 m? What is the y-component of the

    asked by Me
  26. PROBABILITY MATH

    An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability that there is at least one correct answer. Could some one please help me? And explain to me how they got the answer? and is there another way

    asked by HM
  27. Physics

    When the Earth, Moon, and Sun form a right triangle, with the Moon located at the right angle, the Moon is in its third-quarter phase. Find the magnitude of the net force exerted on the Sun. Find the direction of the net force exerted on the Sun. Give the

    asked by Cooper
  28. chemistry

    Consider the following reaction in a closed reaction flask. If 0.600 atm of gas A is allowed to react with 1.20 atm of gas B and the reaction goes to completion at constant temperature and volume, what is the total pressure in the reaction flask at the end

    asked by Celeste
  29. Chemistry

    If an atom gains energy, is it in a more stable or unstable state?

    asked by Andres
  30. Organic Chem

    The following reaction is a single-step, bimolecular reaction: CH3Br + NaOH ---> CH3OH + NaBr When the concentrations of CH3Br and NaOH are both 0.150 M, the rate of the reaction is 0.0090 M/s. a) what is the rate of the reaction if the concentration of

    asked by Bryan
  31. Physics

    In each hand you hold a 0.15 kg apple. What is the gravitational force exerted by each apple on the other when their separation is 0.25 m? What is the gravitational force exerted by each apple on the other when their separation is 0.50 m?

    asked by Cooper
  32. Social Studies 9

    why do you think lawyers in land claims trials refer to the royal proclamation of 1763 more then 200 years . PLEASE PLEASE I NEED IT BY TOMORROW . !!!

    asked by Stephanie
  33. Calculus

    The widths (in meters) of a kidney-shaped swimming pool were measured at 3-meter intervals as indicated in the figure. Use the Midpoint Rule with n = 4 to estimate the area S of the pool if a1 = 15.5, a2 = 18, a3 = 17, a4 = 14, a5 = 12.5, a6 = 12, and a7 =

    asked by Ethan
  34. calculus

    Hydrocodone bitartrate is used as a cough suppressant. After the drug is fully absorbed, the quantity of drug in the body decreases at a rate proportional to the amount left in the body, with constant of proportionality . Suppose that the half-life of

    asked by John
  35. physics

    a baseball (m = 153 g) approaches a bat horizontally at a speed of 41.0 m/s (92 mi/h) and is hit straight back at a speed of 45.8 m/s (102 mi/h). If the ball is in contact with the bat for a time of 1.05 ms, what is the average force exerted on the ball by

    asked by Kelsey
  36. Chemistry

    Calculate ∆H˚ for the following reaction using the given bond dissociation energies. CH4 (g) + 2O2 (g) --> CO2 (g) + 2H2O (g) Bond.......∆H˚ (kJ/mol) O-O........142 H-O.........459 C-H.........411 C=O........799 O=O........498 C-O.........358 ∆H˚

    asked by Raj
  37. Physics

    An equilateral triangle 10.0 m on a side has a 1.00-kg mass at one corner, a 2.00-kg mass at another corner, and a 3.00-kg mass at the third corner. Find the magnitude of the net force acting on the 1.00 kg- mass. Find the direction of the net force acting

    asked by Cooper
  38. algebra

    For the following equation, state the value of the discriminant and then the nature of the soluation: -3x^2-8x-11=0 Is there one real solution, two imaginary solutions or two real solutions?

    asked by Jones
  39. math

    For every 7 blue chips there are 3 red chips. In a pile of 320 blue and red chips, there are ___ more blue chips than red chips.

    asked by Anonymous
  40. Inverse Variation

    Help me please.. Explain also :( 1. E is inversely proportional to Z and Z = 4 when E = 6. 2. P varies inversely as Q and Q = 2/3 when P = 1/2. 3.R is inversely proportional to the square of I and I = 25 when R = 100. 4. F varies inversely as the cube root

    asked by Elmo Schnittka
  41. Statistics

    A box contains 12 lights bulbs, of which 4 are defective. All bulbs look alike and have equal chance of being chosen. 3 light bulbs are selected from the box to check the quality. a. List all the possible outcomes b. find the probability that all 3 are

    asked by Yvonne
  42. math

    Jacie is considering a job that offers a monthly starting salary of $3000 and guarantees her a monthly raise of $180 during her first year on the job. Find the general term of this arithmetic sequence and her monthly salary at the end of her first year/

    asked by andrew
  43. physics

    A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A constant tangential force of 210 N applied to its edge causes the wheel to have an angular acceleration of 1.161 rad/s2. (b)

    asked by jim
  44. Chemistry

    Predict whether the following reactions will be exothermic or endothermic A.] N2 (g) + 3H2 (g) --> 2NH3 (g) B.] S (g) + O2 (g) --> SO2 (g) C.] 2 H2O (g) --> 2 H2 (g) + O2 (g) D.] 2 F (g) --> F2 (g) Bond ________ ∆H˚ (kJ/mol) H-H _________ 432 N(triple)N

    asked by Matt
  45. Physics

    Two 0.53-g basketballs, each with a radius of 17 cm, are just touching. How much energy is required to change the separation between the centers of the basketballs to 1.1 m? (Ignore any other gravitational interactions.) How much energy is required to

    asked by Cooper
  46. Physics

    An equilateral triangle 10.0 m on a side has a 1.00-kg mass at one corner, a 2.00-kg mass at another corner, and a 3.00-kg mass at the third corner. Find the magnitude of the net force acting on the 1.00 kg- mass. Find the direction of the net force acting

    asked by Cooper
  47. Social Studies 9

    PLEASE I NEED THIS BY TOMORROW!!!. why do you think lawyers in land claims trials more then 200 years after it was proclaimed . NO LINKS PLEASE.

    asked by Stephanie
  48. calculous

    Find the area of the region bounded by the parabola y = 4x^2, the tangent line to this parabola at (4, 64), and the x-axis.

    asked by Ryan
  49. Physics

    Problem 17.11 Light from a helium-neon laser (wavelenght = 633 nm) is used to illuminate two narrow slits. The interference pattern is observed on a screen 3.0 m behind the slits. Thirteen bright fringes are seen, spanning a distance of 52 mm . Part A -

    asked by Paige
  50. Physics

    An archer shoots an arrow horizontally at a target 12 m away. The arrow is aimed directly at the center of the target, but it hits 56 cm lower. What was the initial speed of the arrow? (Neglect air resistance.)

    asked by Juhmillico
  51. physics

    An Atwood's machine consists of blocks of masses m1 = 13.0 kg and m2 = 19.0 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 7.30 kg and radius r = 0.200 m. The block of mass m2 is allowed to

    asked by Anonymous
  52. math

    The height of an object thrown upward with an initial velocity of 96 feet per second is given by the formula h = -16t2 + 96t, where t is the time in seconds. How long will it take the object to reach a height of 144 feet?

    asked by Emily
  53. physics

    The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.012 kg, and its velocity is +715 m/s. Her

    asked by Kelsey
  54. physics

    Two balls are approaching each other head-on. Their velocities are +9.30 and -12.1 m/s. Determine the velocity of the center of mass of the two balls for the following conditions. (Use the sign of your answer to indicate the direction.) (a) They have same

    asked by Taylor
  55. 3rd grade math

    looking at the table of 9's facts. do you see another number pattern in the multiples of 9? explain.

    asked by boss
  56. Physics

    A flywheel with a diameter of 2.45 m is rotating at an angular speed of 74.1 rev/min. (a) What is the angular speed of the flywheel in radians per second? (b) What is the linear speed of a point on the rim of the flywheel? (c) What constant angular

    asked by kyle
  57. physics

    A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A constant tangential force of 210 N applied to its edge causes the wheel to have an angular acceleration of 1.161 rad/s2. (a)

    asked by Anonymous
  58. physics

    A 0.5 kg football is kicked with a speed of 15 m/s. A goalkeeper catches the ball and brings it to rest in 0.02 seconds. What is the impulse delivered to the ball and the average force exerted on the goalkeeper?

    asked by Anonymous
  59. college chemistry

    what is the molarity of NaF in the final solution if a solution was prepared by mixing 35.0mL of 0.200M NaF with 28.5mL of 0.350M NaF

    asked by S.Dunn
  60. Stats

    Harley-Davidson motorcycles make up 14% of all the motorcycles registered in the United States. You plan to interview an SRS of 600 motorcycle owners. a.) What is the sampling distribution of the proportion of your sample who own Harley's? b.) How likely

    asked by Manda
  61. Organic Chemistry I LAB

    why would 4-methyl-2-pentanone have a lower boiling point that 2-hexanone if they are isomers and their molecular weights are the same?

    asked by Sarah
  62. PROBABILITY MATH

    From a group of 3 men and 4 women, a delegation of 2 is selected at random. What is the expected number of men in the delegation? Round your answers to two decimal places as needed. Could someone help me with how to do this?

    asked by HM
  63. Physics

    Problem 17.8 Light from a sodium lamp (wavelenght = 598) illuminates two narrow slits. The fringe spacing on a screen 150cm behind the slits is 4.0 mm . Part A - What is the spacing (in mm ) between the two slits? Express your answer using two significant

    asked by Paige
  64. statistics-math

    The mean score on a Math exam was 50% and the standard deviation was 10%. Assume the results were normally distributed. (a) What percent of students earned a score between 50% and 70%? ( /2)

    asked by Noelle
  65. english

    why do u think Edwards felt it was necessary to terrify his puritan audience into action?

    asked by anna
  66. Physics

    An astronaut exploring a distant solar system lands on an unnamed planet with a radius of 3800 km. When the astronaut jumps upward with an initial speed of 4.00 m/s , she rises to a height of 0.600 m. What is the mass of the planet?

    asked by Cooper
  67. CHEMISTRY

    Strong base is dissolved in 675 ml of 0.200 m weak acid (ka=3.25x10^-5) to make a buffer with a ph of 3.95. Assume that the volume remains constant when the base is added. HA + OH ---> H2O + A^- calculate the pka value of the acid and determine the number

    asked by Alexander
  68. Math

    What is the annual interest rate if $1600 is invested for 6yrs. and 456 in intrest is earned

    asked by Zach
  69. physics

    Suppose a beam of 5.0 eV protons strikes a potential energy barrier of height 5.5 eV and thickness 0.57 nm, at a rate equivalent to a current of 825 A. (a) How long would you have to wait-on average-for one proton to be transmitted? (b) How long would you

    asked by Anonymous
  70. Algebra

    Ms Newton's class took the same test as Mr. Euclid's students. Ms. Newton's class has 20 students, and the average(mean) test score was 90. The average of Mr. Euclids class was 80. If you combine both classes the average score on the test is 85. How many

    asked by Kahlil
  71. calculus

    Find the number b such that the line y = b divides the region bounded by the curves y = 16x2 and y = 9 into two regions with equal area. (Round your answer to two decimal places.)

    asked by Courtney
  72. middle school math

    If the numerator and the denominator of a proper fraction are increased by the same amount, is the new fraction greater than, equal to, or less than the original fraction? Is this correct... it would be equal to because you are increasing both the

    asked by liz
  73. social civics

    true or false the united states gained territory in the caribbean sea as a result of the spanish american war

    asked by Anonymous
  74. English

    I was referring to my previous sentence: they checked (in) their bags for cigarettes. I urgently need to check these sentences. I believe there are mistakes in the word choice,. Thank you. 1) Another blow (I need a synonym) to traditional beliefs came from

    asked by Henry2
  75. statistics

    if 1 adult male is randomly selected and is assumed to have 20 lb of carry on baggage, find the probabilty that his total is greater than 195 lb

    asked by Kristie
  76. Science

    What instrument are used to measure mass?

    asked by Laruen
  77. chem

    A gas at a pressure of 2.0 atm is contained in a closed container. Indicate the changes in its volume when the pressure undergoes the following changes at constant temperature. (Assume that the volume of the container changes with the volume of the gas.)

    asked by keyisha
  78. Chemistry

    draw the alkyne formed when 3,4-dichloroheptane is treated with an excess of a strong base such as sodium amide. I got CH3CH3C(triple bond)CCH2CH3 but was told it was the wrong answer

    asked by Jay
  79. math

    The all-city band is made up of students from 3 schools. bayside, lincoln, and hendricks. 20 students are in the all-city band. 5 students come from bayside. lincoln has 1 more student in the band than hendricks. how many students in the all-city band come

    asked by dimitri
  80. chemestry

    A calorimeter contains 16.0 of water at 15.0. When 1.60 of (a substance with a molar mass of 58.0 ) is added, it dissolves via the reaction and the temperature of the solution increases to 27.5. Calculate the enthalpy change, , for this reaction per mole

    asked by Anonymous
  81. calculous

    Find the area of the region bounded by the parabola y = 4x^2, the tangent line to this parabola at (4, 64), and the x-axis.

    asked by Ryan
  82. English

    Thank you very much. I have a few other doubts concerning a paraphrase. Could you please check it? 1) He thinks that even the clear water of the ocean (from Neptune’s ocean?) will not be able to clean his hands and that the blood he has on them will

    asked by Henry2
  83. Physics

    Gravity on Titan Titan is the largest moon of Saturn and the only moon in the solar system known to have a substantial atmosphere. Find the acceleration due to gravity on Titan's surface, given that its mass is 1.35 X 10^23 kg and its radius is 2570 km.

    asked by Cooper
  84. chemistry

    A student measures 0.2452 g of a monoprotic solid acid, and dissolves the solid in water to make 100.0 mL of solution. the entire solution is titrated to a phenolphthalein endpoint with 45.06mL of 0.1725M KOH. A. what is the molarity of the acid solution?

    asked by ali
  85. Social Studies 9

    PLEASE I NEED HELP, I DON'T GET WHAT THIS QUESTION IS ASKING FOR ? :# Were the sons of liberty justified in their treatment of the loyalists.

    asked by Stephanie
  86. Physics

    A 59 kg pole-vaulter falls from rest from a height of 5.5 m onto a foam rubber pad. The pole-vaulter comes to rest 0.39 s after landing on the pad. a. Calculate the athlete's velocity just before reaching the pad. b. Calculate the constant force exerted on

    asked by Force and Momentum
  87. spanish II

    Complete with the correct form of the indicated verb: Los alumnos ____ cuando la profesora habla. (dormir)

    asked by Bob Randy
  88. science

    Earthquakes occur because of _____. plate tectonics cracks in the crust landslides volcanoes

    asked by sam
  89. physics

    If a vector that is 1cm long represents a velocity of 10km/h, what velocity does a vector 2cm long drawn to the same scale represent? An airplane has an airspeed of 100km/h north. If there is a 30 km/h tailwind, what is its groundspeed?

    asked by Paulina
  90. physics

    Suppose you increase your walking speed from 1m/s to 3m/s in a period of 1s. What is your acceleration? a:2m/s b:5m/s c:4m/s d:3m/s

    asked by Anonymous
  91. Math

    Leroy ran a total of 15 miles last month. He ran 5/8 mile each day. How many days did he run?

    asked by Anon
  92. Chemistry

    A reaction has a standard free-energy change of -11.80 kJ/mol (-2.820 kcal/mol). Calculate the equilibrium constant for the reaction at 25 degrees C. Please help!

    asked by Tanisha
  93. Economics

    The index most widely used by the government and the private sector to measure changes in the cost of living is the (a) the GDP deflator, (b) Producer Price Index, (c) The interest rate, (d) Consumer Price Index

    asked by JJ
  94. statistics

    space shuttle astronauts each consume an average of 3000 calories per day. one meal normally consists of a main dish, a vegetable dish, and 2 different desserts. the astronauts can choose from 11 man dishes, 8 vegetable dishes, and 12 desserts. how many

    asked by kerri
  95. Algebra

    The flower garden has the shape of a right triangle. 5ft of a perennial border forms the hypotenuse of the triangle, and one leg is 1ft longer than the other leg.Find the lengths of the legs.

    asked by Kelly
  96. english

    can anyone please let me know my grammatical mistakes in this paragraph:- Presently, I am pursuing diploma in medical administrative assistant from Penn Foster. Since last month I have been looking for job in administration department in a hospital, so I

    asked by louise
  97. physics

    a 200lb pound man walks out to the end of a uniform plank which projects perpendiculary over the edge of a roof. the plank is 20 ft long and weights 100lb. how far from the edge of the roof can the plank overhang?

    asked by Anonymous
  98. Physics

    A car (mass = 1070 kg) is traveling at 40 m/s when it collides head-on with a sport utility vehicle (mass = 2570 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle

    asked by Taylor
  99. Calculus

    Consider f(x)=200+8x^3+x^4. find the intervals on which function is increasing or decreasing, the local max and minimu values, the intervals of concavity and the inflection points

    asked by Ashley
  100. Physics

    An airplane flies due north at 220 km/h with respect to the air. There is a wind blowing at 65 km/h to the northeast with respect to the ground. What are the plane's speed and direction with respect to the ground?

    asked by Martha
  101. physics

    a 60 kg student jumps from a table 1.2m high. When his feet hit the floor he bends his knees so that the stopping time is .06s. What is the average force that the floor exerts on his body in order to stop him?

    asked by Paul
  102. maths

    a conical tank open at the top is 4m and has a top radius of 1m its filled with water and after 2 hours, the depth of water dropped to 1m due to evaporation.set up a differential equation for the depth of water as a function of time.set up an equation for

    asked by apollo
  103. physics

    Could you change the drawing in Figure 15.6 to make it illustrate the heating of air when it is compressed? Make a sketch of this case

    asked by yupi
  104. Mathematics

    If a piece of wood is 5 cm longer than a second piece, and 3/4 of the second piece is equal to 3/5 of the first, what is the length of the second piece? Explain your workings

    asked by Mikie
  105. 8th grade math

    It takes Bob five minutes to saw a board into three pieces. How long would it take him to saw a board into nine pieces? HINT: The answer is NOT fifteen minutes.

    asked by Anonymous
  106. physics

    A gymnast weighing 72 kg hangs from a cross bar. His coach pushes him forward with a force of 38 N and backward with a force of 20 N. The upward reaction force on the gymnast is 750N. Calculate: i). The resultant (net) force on the gymnast and ii). The

    asked by brighton
  107. geometry

    A kindergarten school has square mats in two colors, red and blue. The ratio of the perimeter of the red mat to the perimeter of the blue mat is 1 : 2. The area of the red mat is blue mat is 9 square feet. What is the area of the red mat?

    asked by vanessa
  108. physics

    A person lifts a 4.4 kg cement block a vertical distance of 1.30 m and then carries the block horizontally a distance of 13.50 m. (a) How much work is done by the person in the process?

    asked by Anonymous
  109. Physics

    Suppose one of the Global Positioning System satellites has a speed of 4.50 km/s at perigee and a speed of 3.52 km/s at apogee. If the distance from the center of the Earth to the satellite at perigee is 2.21×104 km, what is the corresponding distance at

    asked by Cooper
  110. statistics

    suppose you just received a shipment of 13 tvs. 3 of them are defective. if 2 tvs are randomly selected compute the probability that both tvs work and what is the probability at least one doesn't work? answer as a fraction in simplified form

    asked by kerri
  111. Organic Chemistry

    What is the mechanism for the removal of bromine from dibromocholesterol using Zinc and acetic acid?

    asked by Tom
  112. physics

    If an airplane propeller rotates at 1570 rev/min while the airplane flies at a speed of 333 km/h relative to the ground, what is the linear speed of a point on the tip of the propeller, at radius 1.97 m, as seen by (a) the pilot and (b) an observer on the

    asked by kyle
  113. Chemistry

    Based on crystal field theory, which of the following metal ions will not be colored when placed in an octahedral crystal field? Au+ Fe3+ Ag+ Au3+ Nb3+

    asked by Melody
  114. Algebra

    At the time of George W.Bush's presidency, there have been 43 presidents of the United States. Draw a Venn diagram showing the following facts about where each served before assuming the presidency. How many presidents served as vice-president and in the

    asked by Monica
  115. calculus

    Differentiate the function. f(x)=3x ln 6x - 3x

    asked by Jessie
  116. english

    Please help me with coming up with a thesis statement for this passage ? In Cormac McCarthy's The Road, the father and an old man who is perhaps named Ely (167, 171) discuss God. Considering this passage carefully—“When I saw that boy I thought I had

    asked by mikku454
  117. brown

    parker wants to buy as many toys as she can with her 10$she can buy individule ponies for 2$ each or a set of 2 dolls for $3 what she she buy and why what do you need to find out what operations will you use why write a number sentence to show how you

    asked by jennie
  118. Calculus

    Show that limit as n approaches infinity of (1+x/n)^n=e^x for any x>0... Should i use the formula e= lim as x->0 (1+x)^(1/x) or e= lim as x->infinity (1+1/n)^n Am i able to substitute in x/n for x? and then say that e lim x ->0 (1+x/n)^(1/(x/n)) and then

    asked by Frederick E.
  119. JavaScript

    I need help these javascript exericses: Input: A text string, using prompt. Output: Either "Valid name" or "Invalid name", depending on whether the input names fit the required format, which is Last name,first name, middle initial where neither of the

    asked by Mike Moskvich
  120. Math

    Use the pattern "1 less than 3 times the number." Start with the number 5. What is the 4th number in the pattern?

    asked by Lea
  121. physics

    Pleaseee help explain how to draw the free body diagrams for this problem!!! Two blocks with masses m1 = 10.9 kg and m2 = 79.3 kg, shown in the figure (in the figure the 79.3kg block(m2) is on a flat surface, the 10.9kg(m1) block is pinned against the

    asked by dave
  122. PROBABILITY MATH

    A bag contains 10 red chips and 12 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that the two chips are the same color? Round your answer to 3 decimal places.. Help me find the answer. Is there

    asked by HM
  123. PROBABILITY MATH

    Find the probability of correctly answering the first 4 questions on a multiple choice test if random guesses are made and each question has 5 possible answers. Explain to me the answer?

    asked by HM
  124. math HELP FAST PLEASE

    sal's movie rental club membership costs $11 per month. with a membership, each movie costs $2. sal's monthly movie rental charge was $23. how many movies did sal rent?

    asked by Anon
  125. chemistry

    In a titration experiment, 22.00mL of a NaOH solution are required to neutralize 24.02 mL of a 0.1094 M HCL solution. what is the molarity of H+ in the HCL solution? (same as the molarity of HCL)

    asked by sari
  126. Mathematics

    A half of what John's age was 4 years ago is equal to one third of what it will be in 5 years' time. How old is John now? Explain your workings

    asked by Adam
  127. English

    What are the ways of how to derive words into noun?

    asked by laniie
  128. critical thinking

    Often the press can report political spin without analyzing it to do which of the following? Answer separate lies from denials find the new and unusual separate fact from fiction (( not sure but i think its this one)) separate leaks from fact

    asked by Anonymous
  129. math

    pls. explain how to get this: A number x is the harmonic mean of two numbers a and b if 1/x is the mean of 1/a and 1/b. a) Write an equation to represent the harmonic mean of a and b. b) Determine the harmonic mean of 12 and 15. c) The harmonic mean of 6

    asked by hi
  130. geometry

    Is this triangle acute, obtuse, or right? Angle R is 82 degrees, Angle S is 56 degrees, and Angle T is 42 degrees

    asked by Rose
  131. Astronomy

    Based on what you learned about light, select all of the correct statements from the following list. The only type of electromagnetic radiation that is actually considered light is visible light. High frequency photons carry more energy than long

    asked by Andy
  132. Applied Decision Methods for Business

    . Construct a Gantt chart and project network for the following set of activities, compute the length of each path in the network, and indicate the critical path: Activity Activity Predecessor Time (months) 1 ___ 4 2 ___ 7 3 1 8 4 1 3 5 2 9 6 3 5 7 3 2 8

    asked by Zanobia
  133. math

    looking at the table of 9's facts. do you see another number pattern in the multiples of 9? explain.

    asked by boss
  134. algebra

    Identify the degree of each term of the polynormial and the degree of the polynormial. -4x^3+2x^2+7x+1 What is the degree of : the first term the second term the third term the fourth term the polynomial

    asked by Lynn
  135. geometry

    A parallelogram ABCD has lengths of sides and angles given below. Find the length of the diagonals AC and BD. (Round your answers to two decimal places.) AB = DC = 6 and AD = BC = 5, angleA = 40°

    asked by deanna
  136. math

    A parallelogram ABCD has lengths of sides and angles given below. Find the length of the diagonals AC and BD. (Round your answers to two decimal places.) AB = DC = 6 and AD = BC = 5, angleA = 40°

    asked by deanna
  137. physics

    a ball takes 22 seconds to reach the ground from a height.calculate from what height it dropped?.

    asked by brighton
  138. PROBABILITY MATH

    Suppose one card is selected at random from an ordinary deck of 52 playing cards. Let A= event a diamond is selected B=event a club is selected Determine P(A|(not B)) Could some one explain this to me and tell me how they got the answer

    asked by HM
  139. physics

    a boy drops a rock off a cliff. how fast will it be traveling 2 seconds after he drops it?

    asked by braandon
  140. English

    I checked the sentences myself.There were spelling mistakes to correct. I need to prepare this listening activity taken from a course book (again). I just want to be sure that everything is OK. 1) Travel and expeditions were much in the people’s mind.

    asked by Henry2
  141. English

    A good writer makes events in a story occur plausibly. The action should be consistent with the characters; if the author forces them into uncharacteristic behavior in order to advance the plot, the story will seem artificial. In "Thank You, M'am, " by

    asked by Dylan
  142. Math

    1/3as many dimes as nickels. 3 more quarters than nickels 17 coins in all

    asked by Siraj
  143. Blue Planet

    Wind and the surface ocean currents it drives are both strongly influenced by the Fill in the Blank 01, which makes them curve from a straight path as they move over the Earth’s surface. They constantly veer to their Fill in the Blank 02 in the northern

    asked by Loi
  144. Algebra

    Financial Project Five years ago, you bought a house for $171,000. You had a down payment of $35,000, which meant you took out a loan for $136,000. Your interest rate was $5.6% fixed. You would like to pay more on your loan. You check your bank statement

    asked by Torra
  145. physics

    In the following diagram, the hanging mass is 3.5kg, and the box has a mass of 1.5kg. If the force of the box with the surface is 0.80N, a) find the acceleration of the masses b)determine the force of tension in the string The diagram shows a box on a

    asked by codyramsz
  146. physics

    A roller coaster has a loop the loop with a loop radius of 14.5 m. What is the minimum speed that the cart must have so that unconstrained riders do not fall out when the cart is upside down at the top of the loop? What condition on the riders is met at

    asked by Jacky
  147. Statistics

    Evolutionary theories often emphasize that humans have adapted to their physical environment. One such theory hypothesizes that people should spontaneously follow a 24-hour cycle of sleeping and waking—even if they are not exposed to the usual pattern of

    asked by DT
  148. Algebra 1 (HELP PLEASE!!)

    Vicky uses 1 2/3 cup milk for a muffin recipe. If she wants to make 3 times the amount of muffins, how much milk will she use?

    asked by HAHAHAHAHA
  149. Physics.. please help!!!!!

    A crate is pulled to the right with a force of 80 N, to the left with a force of 125.8 N, upward with a force of 615.4 N, and downward with a force of 248 N. What is the net external force in the x direction? y direction?? Also.... What is the magnitude of

    asked by Elle
  150. Physics

    Calculate the rotational inertia of a wheel that has a kinetic energy of 41.6 kJ when rotating at 264 rev/min.

    asked by Emily
  151. Physics

    The largest moon in the solar system is Ganymede, a moon of Jupiter. Ganymede orbits at a distance of 1.07 X 10^9 m from the center of Jupiter with an orbital period of about 6.18 X 10^5 s. Using this information, find the mass of Jupiter.

    asked by Cooper
  152. LA

    why does prince humperdink have to look for a bride in The Princess Bride?

    asked by Nicole
  153. Math

    If interest is compounded monthly at 8% per year for 10 years, explain how to find the number of compounding periods and the interest rate per compounding period.

    asked by Faith
  154. Algebra

    During the first part of a trip a canoeist travels 49 miles at a certain speed. The canoeist travels 25 miles on the second part of the trip at a speed of 5mph slower. The total time for the trip is 5hrs. What was the speed on each part of the trip?

    asked by Kelly
  155. Math HELP FAST PLEASE

    liz earns a weekly salary of $459 and $20 per hour for each overtime hour she works. this week her total pay including salary and overtime pay was $559. write an equation to represent this situation. how many hours of overtime did liz work?

    asked by Anon
  156. math

    Simply: (a) Four multiply by square root of seven open bracket two multiply by the square root of three plus three multiply by the square root of six minus the square root of seven close bracket. (b) open bracket three multiply by the square root of seven

    asked by lupupa
  157. math

    what must be added to 6 3/5 to produce 3 5/6?

    asked by kristeen
  158. Mathematics

    If a piece of wood is 5 cm longer than a second piece, and 3/4 of the second piece is equal to 3/5 of the first, what is the length of the second piece? Explain your workings

    asked by Kevin
  159. Math

    How do you simplify the radical 4sqrt(128 n^8)

    asked by Naty
  160. physics

    A golf ball is drive. With an initial velocity of 25 m/s at an angle of 35 degrees with the horizontal find the maximum height the ball reaches above its original height

    asked by Anthony
  161. Algebra

    Ms Newton's class took the same test as Mr. Euclid's students. Ms. Newton's class has 20 students, and the average(mean) test score was 90. The average of Mr. Euclids class was 80. If you combine both classes the average score on the test is 85. How many

    asked by Kahlil
  162. physics.pls help

    Participants in a road race take water from a refreshment station and throw their empty cups away farther down the course. If a runner has a forward speed of 6.20m/s, how far in advance of a garbage pail should he realease his water cup if the vertical

    asked by ted
  163. phys

    Doug pushes a 4.65 kg crate up a 2.00 m high 13.0° frictionless slope by pushing it with a constant horizontal force of 35.8 N. What is the speed (in m/s) of the crate as it reaches the top of the slope assuming that the local acceleration due to gravity

    asked by tc
  164. Stats

    A large company has found that 40% of it employees own their own homes. a.) If we randomly select a sample of 20 employees, what is the probability that the sample proportion that own their homes is over 50%? b.) If we randomly select a sample of 40

    asked by Manda
  165. calculus

    Find an equation of the tangent line to the curve at (8,0). y=ln(x^2 -8x +1)

    asked by Alexa
  166. Algebra

    A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. 37 said they drove alone. 38 rode in a carpool. 25 rode public transportation. 6 used both carpools and public transportation. 10 used both a

    asked by Monica
  167. Algebra - Please HELP

    During the first part of a trip a canoeist travels 49 miles at a certain speed. The canoeist travels 25 miles on the second part of the trip at a speed of 5mph slower. The total time for the trip is 5hrs. What was the speed on each part of the trip?

    asked by Kelly
  168. Chemistry

    A complex ion, [M(OH)6]4-, is orange in solution. Which of the following ligands, when bound to the same metal might cause the solution to be blue? Cl- CN- CO F- H2O I- NH3 NO2- OH- NCS-

    asked by Kourtney
  169. Math

    How long will it take 7500 to triple itself if it is invested at 7% simple interest?

    asked by Ashley
  170. calculus

    Differentiate the function. h(x)= ln(x+ sqrt(x^2 -4))

    asked by Ali
  171. Physics

    Car 1 has a mass of m1 = 65 103 kg and moves at a velocity of v01 = +0.78 m/s. Car 2, with a mass of m2 = 92 103 kg and a velocity of v02 = +1.4 m/s, overtakes car 1 and couples to it. Neglect the effects of friction in your answer. (a) Determine the

    asked by Taylor
  172. Geometry

    Is this angle acute, right, or obtuse: Angle M is 102 degrees Angle N is 41 degrees Angle P is 37 degrees

    asked by Rose
  173. Social Studies

    The interaction of private companies trying to make the greatest profit and customers trying to get the best deal is called A) competition B) blind faith C) the invisible hand D) the zero sum game Blind faith means belief without true understanding so I'm

    asked by Courtney
  174. Calculus (Derivatives)

    Show the steps to get the derivative function of -500/x by evaluating the limit. By limit, they are referring to the equation, lim h -> 0 (f(x + h)-f(x))/h

    asked by Mishaka
  175. calculus

    Find the volume of the solid generated by revolving about line x = -4 the region bounded by x = y - y^2 and x = y^2 - 3

    asked by Ryan
  176. chemistry

    How many moles of sugar are required to react completely with 3.26 mol of oxygen?

    asked by Anonymous
  177. algebra

    1.FIND THE LCM OF 10X^7 AND 50X^4 2.FIND THE LCM OF x^2 -36 AND x^2 + 11x +30 3.FIND THE LCM y^3+8y^2+16y, y^2 -8y 4.FIND The LCM Of 15z^2 +60z and 3z^2 + 15z +12

    asked by lisa
  178. Math

    Cost- 50 Selling Price- 125 Mark up rate - Unknown, Operating Profit- unknown Exected monthly sales (unit) 100 Need to solve for Mark up rate & Operating profit

    asked by Keri
  179. Algebra Please help

    A pack of Jellybeans contains 7 different flavors: Apricot, Banana, Coconut, Date, Eggplant, Fig, and Grape. You can Eat each flavor individually or come up with some crazy combinations. How many flavor combinations are possible with these 7 flavors alone

    asked by Linda
  180. 6th grade Math

    Light travels about 1 mile in 0.000005 seconds. If a spacecraft could travel at this speed, it would travel almost 10 to the 6th power miles in 5 seconds. About how far would this spacecraft travel in 50 seconds?

    asked by Bob
  181. english

    which of the following is not Abrahamic religion? a. christianity b. buddhism c. judaism. d. islam

    asked by tracy
  182. English

    Could you please check these sentences for me? Thank you. 1) She doesn't want me to watch it because she thinks it is a programme with no ideas, in which characters often shout at one another. 2) She gets on well with her younger brother. 3) They don't go

    asked by Henry2
  183. computer

    What type of software is provided with the expectation that the users will change it to meet their particular needs? (Points: 5) Commercial Software Open Source Software Public Domain Software Shareware is it "Open source software" im confused

    asked by john
  184. Science

    Does intensity increase as amplitude increases? (in reference to SOUND WAVES) Or does it decrease? I'm so confused now. I wrote that loudness, energy and intensity inreases as amplitude increases. Am I right? thank you.

    asked by Lola
  185. omputer

    The process called __________ marks a particular part of the document for special processing. (Points: 5) blocking editing identifying selecting is it D? im confused betweem B n D

    asked by john
  186. Grammar

    What is the common nouns & proper nouns in these sentences. 1. Long ago there was a thief in England named Robert. 2. They robbed only rich men. 3. The stolen money was given to anyone who was poor. 4. He was known everywhere as Robin Hood. 5. No one was

    asked by Medy
  187. Biology

    Which of the following would increase the chance of a successful infection? A. The host has a strong immune system. B. The pathogen is very virulent. C. The pathogen population at the infection site is small D. A and B E. A, B, and C

    asked by Sammie R
  188. physics

    Block A has a mass of 6.07 kg and is on a rough incline of 12.5o to the horizontal. Block B has a mass of 4.82 kg and the coefficient of kinetic friction between Block A and the plane is 0.268. What is the acceleration of the blocks? What is the tension in

    asked by Yul
  189. algebra

    Multiply , then simplify 5 sqrt:75 - 7 sqrt:3

    asked by Bill
  190. English

    Could you please check these other sentences I left out? (The first refers to my previous post). Thank you. 1) This is a nonsense. She admits being guilty but then she says she would be ashamed of having a coward's heart (by not admitting her guilt?)

    asked by Henry2
  191. english

    I have to write a speech about recycling can you help me?

    asked by rimy
  192. PROBABILITY MATH

    Suppose one card is selected at random from an ordinary deck of 52 playing cards. Let A= event a diamond is selected B=event a club is selected Determine P(A|(not B)) Could some one explain this to me and tell me how they got the answer

    asked by HM
  193. math

    A piece of paper is 280 millimeters long and 200 millimeters wide. You want to draw a grid on the paper so that there is a whole number of squares on the paper. What are the possible sizes of thet is the largest possible squares?

    asked by unknown
  194. precalculus

    find the component f and g so that fog =H H(x)=log3 e^x

    asked by tiona
  195. math

    boxes are stacked one on top of the other. you paint only the sides of each box not top or bottom, but will paint the top at the end of the stack how many faces does he paint in a stack of three boxes?

    asked by SLb
  196. Math

    What does it mean to refer to a 20 inch TV or a 25 inch tv set? Such ubits are refer to the diagonal of the screen. A 25 inch TV set also has a width of 20 inch what is its height? would I multiply 20 by the height to get the diagonal? I think the answer

    asked by Allison
  197. Mathematics

    If a piece of wood is 5 cm longer than a second piece, and 3/4 of the second piece is equal to 3/5 of the first, what is the length of the second piece? Explain your workings

    asked by Jessica
  198. English

    I was wondering what you all may think about video games and their effects on children playing them? Are the children becoming more violent? What do these games do t a child's psyche?

    asked by Benjamin
  199. Stats

    Which of the following would be closest to a normal distribution? a.) The sampling distribution of the average weight of 40 eggs randomly selected from the stock at the High Street Kroger's grocery? b.) The sampling distribution of the average weight of 4

    asked by Manda
  200. statistics

    Help!!!!!! A confidence interval estimate for the population mean is given to be (39,90, 48.11) If the standard deviation is 11.473 and the sample size is 52 determine the maximum error of the estimate. determine the confidence level used for the given

    asked by amy
  201. math

    find the sum of the square of -3 1 over 3 and the cube 3 over 2..

    asked by mj
  202. physics

    A 248-kg crate rests on a surface that is inclined above the horizontal at an angle of 19.5°. A horizontal force (magnitude = 537 N and parallel to the ground, not the incline) is required to start the crate moving down the incline. What is the

    asked by Jul
  203. Math

    In 1976, there were five Sundays in February. In which of the remaining years in the 21st century will February have five Sundays?

    asked by MATH HELP PLEASE
  204. Intro to food preperation

    why is deep frying considered a dry heat cooking method? and broiling considered a moist cooking method?

    asked by Aran
  205. advanced math

    What is the half life of a substance if it decays by 75% in two weeks?

    asked by katelyn
  206. Calculus

    Okay, I know that the derivative functon of the function -500/x is 500/x^2, but I am having a hard time getting to this result using limit notation. Could someone show or explain the steps used in limit notation to get the derivative of 500/x^2?

    asked by Mishaka
  207. Math

    A lends altogether Rs 6000 to B and C for two years.B pays Simple Interest @ 10%p.a. and C pays Compound Interest @8 %.If C pays Rs 50 more than B as the interest , how much did A lend to each of them?

    asked by priya
  208. economics

    which of the following is not a goal of governmetn programs? A. To enforce private property rights B. To prohibit natural monopolies C. To reduce pollution D. To transfer money from higher-incom households to the poorest households E. To maintain price

    asked by Anonymous
  209. Geometry

    Which pair of transformations best describes the relationship between RST and VUT?

    asked by Jean
  210. Chemistry

    What would be the first step of the mechanism in the hydrolysis of SiCl4? I know that SiO2 is formed, but Im confused as to how this would occur.

    asked by Alex
  211. french

    for my homework we had to write a paragraph on what we do to help out around the house could you please let me know if there are grammar or spelling mistakes Pour aider autour de la maison décharger le lave-vaisselle quand il doit être fait et j'ai aussi

    asked by Ellie
  212. Math

    Find the length of side a in the right triangle if b=12 and c=15 I have the length as 6 but I don't think this is correct Please help

    asked by Allison
  213. science

    home challenge iron in cereal. What happens when water is added to total cereal

    asked by Janie
  214. mathematics

    What will be the remainder when 2 raised to the power 2003 is divided by 17?

    asked by ss..
  215. algebra

    If a pro basketball player has a vertical leap of about 20in., what is his hang time? Use the hang time function v=49t^2

    asked by Smith
  216. Health, Safety, and Nutrition

    1)Following the nutritional label on a jar of peanut butter, you determine that 1 ounce of the peanut butter contains 115 calories and 9 grams of fat. What percent of the calories come from fat. a)30 b)40 c)70 d)80 i put c

    asked by Alana
  217. math

    if lynns age is 8 years less than 15 times the age of her neice Elizabeth, if the sum of their ages is 24, what is elizabeths age?

    asked by sharee
  218. maths

    use square nombers to determine at least 3 pattern for the first five square nombers.

    asked by kell kell
  219. math

    How to show that 2nCn

    asked by jiya
  220. Chemistry

    CH3CH2CH(BR)CH=C(BONDED TO A METHYL ON ONE SIDE AND AN ETHYL ON THE OTHER)

    asked by Jay
  221. math..

    so is the remainder 1, when 2 raised to power 2003 is divided by 17?

    asked by ss..
  222. criminal justices

    what are current parole and mandatory release policies

    asked by Anonymous
  223. mathematics (kindly help)

    the average of first four numbers in a GP is 140. find the ratio.

    asked by ss..
  224. computer

    2. _____is applications software designed to help users be more efficient. (Points: 5) a.Assistance software b.Efficiency software c.Productivity software d.Software suites is it D

    asked by john
  225. health, safety, and nutrittion

    the children in your class are working on an art project thar requires them to use a standard hair dryer to produce a particular effect. of the following locations, which one would be the safest place to put the hair dryer while the children are working on

    asked by Alana
  226. math

    f a stone is tossed from the top of a 330 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 330, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to

    asked by tina
  227. Grammar

    In the following sentence, is the word empty an adjective? It seems like it would be a noun/direct object The same with this sentence: The good bike was expensive. Is expensive a noun/direct object, or an adjective?

    asked by Lisa
  228. computer

    A collection of integrated software is called a software: (Points: 5) congregation. family. office. suite. im confused about this one i think its D

    asked by john
  229. geography

    what is the marcellus shale ? tell me in your own words.

    asked by lola
  230. Business

    I am suppose to describe what style of decision-making my organization is; but I will be honest, I am not a business major, and this material confuses me. When looking at the company i work for, I recognize that they in the past relied on benchmarking, but

    asked by Jace
  231. math

    4n+8=9n-7

    asked by gage
  232. Chemistry

    Is the structure for chlorous acid H O Cl O or H Cl O ? O I was thinking that both could be correct but I am not 100% sure.

    asked by Hannah
  233. science

    What elements does the compound MgCL2, magnesium chloride, contain? A. Chloride only B. Magnesium only C. M

    asked by stephanie
  234. Comprehension

    The sweater-------- looks best on you is the red one. Which pronoun do I use

    asked by Daniel
  235. Social Studies

    Im having trouble understanding what is China's FDI. Does anyone have a definition for it?

    asked by Andy
  236. Algebra 1

    Tim and Kim are twins. At birth, Kim weighed 3 pounds more that 2/3 of Tim's weight. If Kim weighed 6 1/2 pounds at birth,how much did Tim weigh at birth?

    asked by Mercedez
  237. English Help Please Due at 8am

    Please proofread for any errors. If you see any please correct them. Thank you. Obesity is one of the major causes of health problems in the United States. Research has been done about this topic for many years. It is more common in the United States

    asked by Angela
  238. Math

    1/3as many dimes as nickels. 3 more quarters than nickels 17 coins in all

    asked by Siraj
  239. Logic- Formal Proof

    I need to solve a proof and I cannot figure it out. The instructions say only that I will have to use subproofs within subproofs. Premises: A or B A or C Conclusion: A or (B and C)

    asked by Megan
  240. history JFK

    How did the media help kennedy win the presidential election against nixon can someone help me with at least some facts

    asked by helen
  241. Western Civ

    Help! Describe the evolutionary account of the emergence of Israelite religion paying particular attention to the ideas of covenant, law, prophets, morality, relations with Canaanite culture, and other themes you deem significant. Also explain how Jewish

    asked by Sara
  242. math

    if a trapezium has a height of 2 m, one side of parallel two sides is 40 m what will be the measurement of other parallel side?

    asked by Diana Chakraborty
  243. Science-Please help

    Can someone tell me what this question means I don't understand it: Violent weather - thunderstorm- Why must Charge Separation be tremendous prior too the occurrence of lightning?

    asked by Mike
  244. Math

    Vicky uses 1 2/3 cup milk for a muffin recipe. If she wants to make 3 times the amount of muffins, how much milk will she use?

    asked by Anon
  245. algebra

    Simplify by removing factors of 1: 9t^2+9t/36t^2+81t

    asked by Katy
  246. Socials Crosswords

    Canada and the Twenties... New form of signage? It's 4 letters, and the second letter is E. Leader in the Winnipeg General Strike? 3 letters, and the last letter is U. Canada becomes involved in this international group in the 20's 6 letters, and the last

    asked by Anonymous
  247. algebra

    Find all numbers for which the rational expression is underfined: r^2-4r?r^2-4r

    asked by Jason
  248. Algebra

    Multiply and simplify (8v+4)(4x^2+9x+4)

    asked by Logan
  249. Algebra

    Solve sqrt:9x+55=x+5, Simplify and use comma to separate the answers

    asked by Chris
  250. Algebra

    Add, simplify if possible 4y/y^2-9 + y/y-3

    asked by Chris
  251. Algebra

    Solve and simplify: x^2+14x-4=0

    asked by Chris
  252. Math

    liz earns a weekly salary of $459 and $20 per hour for each overtime hour she works. this week her total pay including salary and overtime pay was $559. write an equation to represent this situation. how many hours of overtime did liz work?

    asked by Angie(:
  253. English

    I left out the following sentences. Thank you. 1) My bed is next to the door against 2)Along the wall opposite the window there's a bookshelf. The children are playing happily. 3) I always do my homework carefully. 4) The students are behaving very badly.

    asked by Henry2
  254. math

    find the sum of the square of -3 1/1 and cube of 3/2

    asked by mj
  255. reading

    Is flying, cried, clapped, try, shook are consonant clusteres

    asked by ashley
  256. Math

    three friends each own land in the same town. Miguel owns 71/2 acres. Jorge & Juanita own the same number of acres. if the friends own 20 1/3 acres altogether, how many acres do Jorge and Juanita owns?

    asked by Anon
  257. English

    I forgot to add this sentence. I'm unsure on the use of the preposition "in". Do you think I can omit it? The new parents checked (in) their bags for cigarettes and listened to their songs to see if they contained bad language.

    asked by Henry2
  258. Biology

    What is the difference between beta and alpha glucose.

    asked by Debe
  259. writing

    I AM ONLY ASKING FOR YOU TO HELP WITH EDITING IT AND GIVE CONSTRUCTIVE CRITICISM. i AM LOOKING FOR STUFF LIKE WHAT I HEADING IN THE RIGHT DIRECTION , SPELLING ERRORS , ETC I chose the article by John H. Banshaf III, “Lawsuits against Fast-Food

    asked by Tasha
  260. calculus

    Let L and M be two perpendicular lines tangent to a circle with radius 6. Find the area bounded by the two lines and the circle

    asked by Angelina
  261. Math

    Main Street can hold four houses. About how big would one house be?

    asked by Mike
  262. precal

    Find the components and so that fog =H . H(x)=log_3e^x

    asked by tina
  263. Math HELP FAST PLEASE

    chris has some rice cakes and 1 granola bar as a snack. the snack contained a total of 560 calories. if the granola bar had 120 calories and each rice had 40 calories, how many rice cakes did chris have? explain

    asked by Anon
  264. math HELP FAST PLEASE

    bella baked 6 dozen cookies. she wants to keep 1 dozen and give the rest to 20 friends. she wants to give an equal number of cookies to each friend. how many cookies does each friend get? justify your answer.

    asked by Anon
  265. science

    how does the wind blow around high and lows along and near the surface in the northtern hemisphere?

    asked by danielle
  266. math

    The greatest common factor of two numbers is 5. What could the two numbers be?

    asked by unknown
  267. Statistics

    Ticket sales for opening night of a movie have a mean of $2100 with a standard deviation of $450. Assume these ticket sales follow a normal distribution. If a movie is selected randomly, what is the probability that opening night ticket sales are more than

    asked by Joe
  268. chemistry

    in a exothermic reaction temperature changed from 30 to 43, reasons why I got those answers

    asked by Jake
  269. 9th grade algebra

    h(t)=-16t+64t what does each zero of this fuction represent

    asked by Anonymous
  270. english

    so apparently my comparison is suppose to be written in formal and not in first person. so my first sentence is not right.how can i rephrase "Miley Cyrus song "The climb" is not only one of my favourite songs, but so it Katy Perry's song"firework? or just

    asked by lalala
  271. geography

    why is Marcellus Shale important?

    asked by lola
  272. Pre Algebra

    I am having problems with inequality problems. The opposite of g is at least -5. Write an inequality and solve.

    asked by Roz
  273. critical thinking

    Corporate power affects the dissemination of news by: Answer advertising getting big business presented favorably preventing conflicting viewpoints from being expressed )) my answer getting big business presented favorably

    asked by Anonymous
  274. English

    Is it a mistake if I include "in", then? Thank you.

    asked by Henry2
  275. Algebra

    7.5+y

    asked by Kevin
  276. College Statistics

    A random sample of greeting cards is a mean value of $2.55 and a standard deviation of $0.44 So construct a 95% confidence interval estimate of the mean value of all cards in the store's inventory. So if the 2500 cards in the inventory then how are the

    asked by Vicki
  277. Algebra

    7.5+y

    asked by Kevin
  278. math

    What are the solutions of the inequality in questions 1-2? 1. - 5(2x+2) - 10x - 17 (1 point)

    asked by ooooo
  279. english 2

    WHAT INFERENCE CAN YOU MAKE FROM THE FACT THAT IT IS FORBIDDEN TO GO TO THE PLACE-BY THE WATER OF BABYLON

    asked by emily
  280. Chemistry

    Is the formula for zinc hydroxide ZnOH2

    asked by Rose
  281. Zoology

    What are the two most diverse animal phyla? Arthropoda and.....?

    asked by Jill
  282. Science

    How many families are found in the Phylum Arthropoda?

    asked by Maggie
  283. critical thinking

    When the interests of politicians or big business moguls coincide with those of the masses which of the following is the consequence? Answer coverage of events will be slanted coverage of events will be automatic coverage of events will be cancelled

    asked by Anonymous
  284. Physics help pleaseee

    A cable with 21.2 N of tension pulls straight up on a 1.10 kg block that is initially at rest. What is the block's speed (in m/s) after being lifted 2.42 m assuming that the local acceleration due to gravity is 9.80 m/s2?

    asked by Me
  285. Algebra

    A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. 37 said they drove alone. 38 rode in a carpool. 25 rode public transportation. 6 used both carpools and public transportation. 10 used both a

    asked by Monica
  286. statistics

    Can any sample proportion less than 0.5 be used to support a claim that the population proportion is greater than 0.5?

    asked by tina
  287. math

    I am a number between 75 and 87. I have fewer than 3 ones. I am an odd number. What number am I ?

    asked by wwps
  288. Chemistry

    Is the structure for chlorous acid H O Cl O or H Cl O ? O I was thinking that both could be correct but I am not 100% sure.

    asked by Hannah
  289. math

    if a number has a 9 in the ones place it is always divisible by 3

    asked by rme
  290. Kinesiology

    what is the torque generated to hold a 60N dumbell at 90 degrees? The dumbell is 0.6m from the shoulder, the centre of the mass of arm weighs 30N and is .25m from the shoulder, the moment arm is 0.05m?

    asked by Laura
  291. Math

    Can anybody help figure out how to write 20 hundredths and 8tenths. And 48 hundreds,25 tens, 12 ones and 4 tenths. I have been stuck on these.

    asked by Samatha
  292. Math

    How do I write the numbers in order from greatest to least and show my work 0.275, 2 5/8, 0.15, 3 6/7

    asked by Ruby
  293. Comm II

    When you write a definition of something, I was taught in school that you should not use the word you are defining in the definition. Does this still apply throughout a definition essay? If so, then how?

    asked by Natasha
  294. Social Studies

    Karl Marx's ideas are the foundation of A) communism B) capitalism C) mercantilism D) fascism

    asked by Courtney
  295. PLEASE HELP!

    What are the two most diverse animal phyla? Arthropoda and.....?

    asked by Jill
  296. MATH

    a. Write the scientific notation b. Write the result in ordinary decimal notation. can you do this one so i know how to do the others (2.9 x 10^3)(3.0 x 10^-3)

    asked by Adam
  297. math

    whats the amount due today on 8000.00 at 7% from june 23. 2008

    asked by louis
  298. Physics

    An airplane has an airspeed of 100km/h north. if there is a 30km/h headwind what is its groundspeed

    asked by Guadalupe
  299. algebra

    Write a quadratic equation in the variable x, having the given numbers as solutions. Type the equation in standard form, ax^2+bx+c=0. The soluation is 8 and is the only solution.

    asked by Jones
  300. algebra

    Re-write with a rational exponent and simplify. ^3 sqrt:22

    asked by Robert
  301. Math

    Find the integral of (3x-2)4^x dx

    asked by Ed
  302. mathematics..

    the average of first four numbers in a GP is 140. find the ratio.

    asked by ss..
  303. English 12

    I need help on an essay. I'm suppose to pick an author to write about and I chose Ernest Hemingway. I need help getting started. I need help on my thesis that way I can get started. Please Help and Thank you

    asked by anoymous
  304. algebra

    Find the x-intecepts, for the graph of the equation: y=x^2+4x-5

    asked by Jack