Questions Asked on
October 15, 2013

  1. physics

    A car of mass M = 800kg traveling at 40.0km/hour enters a banked turn covered with ice. The road is banked at an angle θ, and there is no friction between the road and the car's tires. (Figure 1) . Use g = 9.80m/s2 throughout this problem. Part A What is

    asked by Lidia
  2. Chemistry

    An aerosol can is empty, except for the propellant gas which exerts a pressure of 1.20 atm at 21 °C. If the can is thrown into a fire and heated to a temperature of 565 °C, what will be the pressure inside the hot can?

    asked by Blake
  3. Physics

    A block is released from the top of a frictionless incline plane as pictured above. If the total distance travelled by the block is 1.2 m to get to the bottom, calculate how fast it is moving at the bottom using Conservation of Energy.(incline 20 degrees

    asked by Donna
  4. Algebra 0110 College

    1) A rectangle has perimeter 38 feet and an area of 78 square feet. Find the dimensions of the rectangle assuming the width is smaller than the length. L= W= 2) A rectangular canvas picture measures 9 inches by 7 inches. The canvas is mounted inside a

    asked by Quince
  5. AP Chemistry

    We drop 17.3 grams of magnesium into 435 mL of a 2 M HCl solution. What is the maximum volume of dry hydrogen that could be produced by this reaction at STP?

    asked by Anonymous
  6. Physics

    A sample of a monatomic ideal gas is originally at 20 °C. Calculate its final temperature of the gas if the pressure is doubled and volume is reduced to one-fourth its initial value.

    asked by nbi
  7. Physical Science

    An astronaut in a spacesuit has a mass of 100 kilograms. What is the weight of this astronaut on the surface of the Moon where the strength of gravity is approximately 1/6 that of Earth?

    asked by unknown
  8. medical coding

    A male newborn, born in the hospital with pre-axial polydactly of the thumbs and cleft daformities of both hands and feet, had a harsh murmur heard posteriorly and faint femoral pulses on initial newborn exam. the newborn was 39 weeks gestation and was

    asked by Ace234
  9. Science help! URGENT. Check answers

    1. True or False? A model train traveling at a constant speed around a circular track has a constant velocity. (False) 2.Which of the following would be affected if a soaring eagle changed direction but remained at a constant speed? acceleration only

    asked by Elena
  10. AP Chemistry

    Iron pyrite (FeS2) is the form in whichmuch of the sulfur exists in coal. In the combustion of coal, oxygen reacts with iron pyrite to produce iron(III) oxide and sulfur dioxide, which is a major source of air pollution and a substantial contributor to

    asked by Anonymous
  11. AP Chemistry

    Nitroglycerin is a shock-sensitive liquid that detonates by the reaction 4C3H5(NO3)3(`) −! 6N2(g) + 10H2O(g) + 12CO2(g) + O2(g) Calculate the total volume of product gases at 205 kPa and 263C from the detonation of 2.9 lb (1315.4 g) of nitroglycerin.

    asked by Anonymous
  12. Math

    Question An investor puts $15,000 into each of four stocks, labeled A, B, C, and D. The table shown below contains the means and standard deviations of the annual returns of these four stocks. Stock Mean Annual Return Standard Deviation of Annual Return A

    asked by Kessy
  13. Practice Exam Calculus

    The radius of a sphere was measured to be 20cm with a a possible error of 1/5cm 1).Use linear approximation to estimate the maximum error in the calculated surface area. Leave your answer in terms of pi. 2).Use linear approximation to estimate the maximum

    asked by Molly
  14. psychology

    8 Suppose that you are dropping off at a large mall without money and merely wander around looking at stores and displays. Later, someone asks you were a particular store is located in the mall. The fact that you direct the person to the store indicates

    asked by Steven
  15. chem

    H2o2+3i+2h -----> I3+2H2o In the first 10.0 second of the reaction the concentration of I dropped from 1.000M to 0.868M a) calculate the average rate of reaction for iodine in this time interval. b) Determine the rate of change in the concentration of H

    asked by niki
  16. Math

    Triangle ABC is a right triangle. If AB = 3 and AC = 7, find BC. Leave your answer in simplest radical form.

    asked by Rachelle
  17. Biology

    What role do vesicles play in processing the proteins in the Golgi Apparatus? a. They create the proteins.(No) b. They modify the proteins. (No) c. They store the proteins. (Maybe) d.They transport the proteins. (Maybe)

    asked by David
  18. explorations in core math

    one shuttle service charges $10 for pickup and $0.10 per mile.the other shuttle service has no pick up fee but charges $0.35 per mile. find the number of miles for which the cost of the shuttle service is the same.

    asked by america argon
  19. Chemistry help (DrBob222)

    propane (c3h8) is burned in oxygen to produce carbon dioxide and water. The heat of combustion of propane is -2012 kJ/mole. How much heat is given off when 3.0 mol C3H8 are react with 10.0 mol O2? Thanks, and please if possible show all steps!

    asked by K
  20. Chemistry

    When 0.354 g of an unknown nonelectrolyte compound was dissolved in 12.5 g of benzene a solution was formed that froze at 4.46 degrees C. Calculate the molar mass of the unknown compound. The freezing point of benzene if 5.48 degrees C, and the Kf of

    asked by Shines
  21. Chemistry

    An unknown solution was treated with BaCl2 and a white precipitate formed which did not dissolve in hydrochloric acid. What anion(s) could be present in the unknown solution?

    asked by Shines
  22. math

    1.graph equation y=4/5x 2.graph linear equation y=-1 3.find the slope of line -2x - 3y = 5 a. slope is b. slope is undefined?

    asked by bridget
  23. Medical Coding

    The patient is an 18-day old baby girl admitted after it was noticed she was placed on intravenous Cefotaxime and Ampicillin, later changed to Cefotaxime and Clindamycin. A culture taken from the umbilical corstump grew Straphylococcus aureus and Grouo H

    asked by Angela
  24. College Chem

    Oxygen gas has a Henry's law constant of 1.66*10^-6 M/mm Hg at 40 degree C when dissolving in water. If the total pressure of gass (O2 gas plus water vapor) over water is 1.0 atm, what is the concentration of O2 in the water in grams per milliliter?

    asked by Kimmy
  25. Physics

    If the gravitational force between objects of equal mass is 2.30x10^-8 N when the objects are 10.0m apart, what is the mass of each object?

    asked by Miranda
  26. Calculus Practice Problems

    The height of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 square cm/min. At what rate is the base of the triangle changing when the height is 7 centimeters and the area is 91 square

    asked by Amy
  27. Physics

    An 8.3 uF and a 2.9 uF capacitor are connected in series across a 24 V battery. What voltage is required to charge a parallel combination of the two capacitors to the same total energy?

    asked by Anonymous
  28. Math

    Use a power of ten to estimate the product 52.6 x 9

    asked by Cole
  29. Physics

    An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. (a) If a 16.0 V potential difference is applied to these plates, calculate the electric field between the plates. kV/m (b) What is

    asked by capacitance q
  30. psychology

    lesson 15 psychology question james has just lost his wife of 35 years to breast cancer. studies have shown that he will be at high risk for physical ailments, illness, and possibly death for the next :

    asked by Anonymous
  31. chemistry

    If 51.6 mL of ethanol (density = 0.789 g/mL) initially at 6.4°C is mixed with 48.9 mL of water (density = 1.0 g/mL) initially at 29.1°C in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the mixture?

    asked by MK
  32. AP Chemistry

    An oxygen sample has a volume of 5 L at 27C and 800 torr. How many oxygen molecules does it contain?

    asked by Anonymous
  33. chemistry

    Calculate the amount of energy in the form of heat that is produced when a volume of 3.56 L of SO2(g) is converted to 3.56 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 bar and 25.0 °C. Assume ideal gas behavior.

    asked by Anna
  34. Math - Trigonometry

    For how many values of theta such that 0

    asked by Sam
  35. maths

    Write the system as a matrix equation and solve using inverses. x1 + 2x2 - x3 = -3 -2x1 - x2 + 3x3 = 0 -4x1 + 4x2 - x3 = -12 A. x1 = 2, x2 = -3, x3 = 1 B. x1 = 1, x2 = -2, x3 = 1 C. x1 = 1, x2 = -2, x3 = 0 D. x1 = 1, x2 = -3, x3 = 1

    asked by mdan
  36. Biology

    What role do vesicles play in processing the proteins in the Golgi Apparatus? a. They create the proteins.(No) b. They modify the proteins. (No) c. They store the proteins. (Maybe) d.They transport the proteins. (Maybe)

    asked by David
  37. physics

    We release an oil drop of radius r in air. The density of the oil is 640 kg/m3. C1 and C2 for 1 atmosphere air at 20∘ C are 3.90 × 10−4 (kg/m)/sec and 0.73 kg/m3, respectively. How small should the oil drop be so that the drag force is dominated by

    asked by Help!!
  38. Physical Science

    24. What happens when a solution of nitric acid (HNO3) is added to a solution of potassium hydroxide (KOH)? What are the products? 25. Which of the following compounds can react with H2SO4 to form a salt: NaCl, Ca(OH)2, HF, AlCl3, H2O, Mg(OH)2? Name the

    asked by Alexandra
  39. socials

    what compromises did Macdonald make at the conferences? How do you think Canada would have been different if Macdonald had succeeded on forming the strong national government he desired instead of a federation with strong provincial governments?

    asked by rochelle
  40. Physics

    Consider an ideal spring that has an unstretched length l0 = 3.3 m. Assume the spring has a constant k = 23 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a

    asked by Tj
  41. science

    When,where,how and why was the Spontaneous Generation discovered by Aristotle?

    asked by Anonymous
  42. medical coding

    This patient was admitted for treatment of a traumatic left second metatarsal fracture. The fracture site was opened and reduced, followed by placement of tree internal Kirshner wires. Two pins were then placed, and an external fixatror frame was connected

    asked by Ace234
  43. vocab

    what is the meaning of the word empathetic

    asked by jobear
  44. English

    Two of your friends are fighting with each other. What could you say to help them? Why don't you sit down with each other? Each person can hear the other one's side of the story. 1. Why don't you sit down with each other? (What is the action of each

    asked by rfvv
  45. math

    Bella keeps a supply of red, blue, and black pens in a drawer. The drawer has 17 red pens, 18 blue pens, and 11 black pens. If Bella wants a red pen, what is the minimum number of pens she has to pull out from the drawer to make sure she gets a red pen?

    asked by mohit
  46. Math

    At a 35% off sale. Daniela purchased a dress for $94.64. What was the regular price of the dress. Please give the answer and formula.

    asked by Alex
  47. Physics Urgent please help

    A spring of negligible mass, spring constant k = 82 N/m, and natural length l = 1.2 m is hanging vertically. This is shown in the left side where the spring is neither stretched nor compressed. In the central one, a block of mass M = 5 kg is attached to

    asked by ss01
  48. poetry

    are these sentences images: 1. their bare boughs weighed with snow 2. the night is darkening round me or hyperbole: 1. clouds beyond clouds above me 2. wastes beyond wastes below

    asked by mercy
  49. Math

    Andie is designing a rectangular play space for her dogs. The length of the play space is 7ft. and the width is 6ft. The new space will have a length and width twice the dimensions of the current space. She needs to purchase sod to cover the ground inside

    asked by Taryn
  50. art

    The repition of an element to make artwork seem active is called what?

    asked by Steve
  51. Physics

    For a scene in a movie, a stunt driver drives a 1.50×103kg SUV with a length of 4.30m around a circular curve with a radius of curvature of 0.333 km (Figure 1) . The vehicle is to be driven off the edge of a gully 10.0 m wide, and land on the other side

    asked by Joe
  52. science

    What force is used for a. 5.5 kg mass

    asked by Anonymous
  53. Physics

    Imagine that you swing about your head a ball attached to the end of a string. The ball moves at a constant speed in a horizontal circle. Part A If the mass of the ball is 0.160kg and you supply a tension force of 14.5N to the string, what angle would the

    asked by Lidia
  54. math

    Find the derivative of y=3x-2(4^x) Here is my attempt: Derivative of 3x is 3 Derivative of 2 is 0 derivative of 4^x is 4^x(ln(4)) Answer: 12^x(ln(4)) Is this correct? If not please explain what I did wrong and what the correct answer is and why. Thanks!

    asked by Anonymous
  55. Math

    Mindy picked 4 times as many daisies as tulips for a flower bouquet.she picked a total of 20 flowers. How many more daisies than tulips did she pick?

    asked by Pietro
  56. math

    The average temperature in the artic circle is -25degrees Celsius. To the nearest integer, what is the average temperature in the artic circle in degrees Fahrenheit? I got -13 degrees I did F=9/5(-25)+32 -45+32=-13 Is this correct?

    asked by Elle
  57. Science

    Where was Aristotle when he tested Spontaneous Generation?

    asked by Anonymous
  58. Math

    option 1: 2-by-3, 3-by-4, and 4-by-5 option 2: 2-by-2 , 3-by-3 ,and 4-by-4 option 3: 3-by-5 , 3-by-6 , and 3-by-7 For each pyramid option, calculate the total number of shoeboxes used after each row has been completed. That is calculate the total number of

    asked by Pie
  59. geometry A please help

    given

    asked by lisa
  60. Math

    What is the answer to moving words page e-66.

    asked by Anonymous
  61. Science- Earth and its History

    What can scientists learn from the rate at which radioactive elements decay? A. a rock's absolute age* B. the relative age of rock layers C. where one soil horizon ends and the next begins D. the difference between molds and casts. After six half-lives,

    asked by Anonymous
  62. Physics

    According to its design specification, the timer circuit delaying the closing of an elevator door is to have a capacitance of 30.0 µF between two points A and B. (a) When one circuit is being constructed, the inexpensive but durable capacitor installed

    asked by bad at physics
  63. physics

    An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. (a) If a 16.0 V potential difference is applied to these plates, calculate the electric field between the plates. kV/m (b) What is

    asked by bad at physics
  64. math

    which point is located on the x axis? -1,-1 -4, 0 0, 5 3, 3

    asked by Steve
  65. algebra functions

    can someone help me with this and explain it to me step by step so i can try to solve the remaining problems i have I have no idea of what I am supposed to do f(x)=x^2: g(x)=x-1/x

    asked by Ricki
  66. PSY/340

    I need help answering this question please. What is the relationship between genes, cells, and behavior?

    asked by SADE
  67. Chemistry

    Use the solubility rules to decide which of the following compounds are soluble in water: barium sulfate copper(II) carbonate Ni(OH)2 Ca(NO3)2 FeCl2 silver nitrate

    asked by Anonymous
  68. Chemistry

    Use the solubility rules to decide which of the following compounds are soluble in water: barium sulfate copper(II) carbonate Ni(OH)2 Ca(NO3)2 FeCl2 silver nitrate

    asked by Anonymous
  69. ALGEBRA HELP! URGENT!

    FACTOR: 36x^2+132xy+121y^2

    asked by Rachet
  70. math

    Assume each kid in the after school program will get 1/2 cup of lemoade. For each mix, how many batches are needed to make enough lemonade for 120 kids?

    asked by Shanna
  71. AP Chemistry

    We observe that 7 grams of a gaseous com- pound occupies 2102 mL at 49C and 626 torr. What is the molecular weight of the com- pound?

    asked by Anonymous
  72. Physics

    A 4.2 g bullet leaves the muzzle of a rifle with a speed of 372.4 m/s. What constant force is exerted on the bullet while it is traveling down the 0.5 m length of the barrel of the rifle? Answer in units of N

    asked by Andrew
  73. English (literature)

    Can someone compare both William Bradford and Thomas Morton's reasons for coming to the new world? thank you.

    asked by JJ
  74. AP Chemistry

    We mix 193 grams of oxygen gas with 39 grams of argon gas in a volume of 1140 mL at 37C. What will be the final pressure of the gas mixture?

    asked by Anonymous
  75. physics

    During 0.21 s, a wheel rotates through an angle of 2.10 rad as a point on the periphery of the wheel moves with a constant speed of 2.12 m/s. What is the radius of the wheel?

    asked by keb
  76. pre algebra

    How do I sketch a||b, b||c, c perpendicular to d in one picture?

    asked by JJ
  77. Algebra 1

    THE PRODUCT OF G AND 2 IS LESS THAN OR EQUAL TO 6

    asked by Sabrina
  78. math

    1. The product of 7/16, 4/3, and 1/2 is A. 7/12. (B). 7/24. C. 21/32. D. 2 13/48. 2. The total of 36, 78, 198, 475, and 620 is (A). 1,407. B. 2,109. C. 1,731. D. 1,187. 3. The quotient of 794.1 divided by 7.61, expressed to two decimal places, is A. 95.83.

    asked by ash
  79. math

    Jake buys a bicycle for $200 down and$20 a month for 2 years.What is the expression that represents the total amount he will pay for the bicycle? I did $200+$20(2x12) Is this correct?

    asked by Elle
  80. history

    The transformation of the office of UN secretary-general from “chief clerk” to “international peacemaker” proves that a. the Security Council is not as powerful as it was meant to be. b. the General Assembly may also become more active someday. c.

    asked by steven
  81. art

    an artist can achieve this by combining similar art elements in an artwork.

    asked by Steve
  82. Chm 2

    The question asks, Consider the following weak acids and their Ka values Acetic acid Ka = 1.8x10^-5 Phosphoric acid Ka = 7.5x10^-3 Hypochlorous acid Ka = 3.5x10^-8 What weak acid-conjugate base buffer system from the acids listed is the best chouce to

    asked by Kyle
  83. physics

    Given the vectors = (19 cm, -7 cm) in green and = (-23 cm, 9 cm) in blue shown on the grid below, calculate the magnitude of the vectors described below and select the correct sketch for each from the choices below. The tail-to-head method is used to

    asked by butcha
  84. health

    When keeping a food diary, you should record?

    asked by Anonymous
  85. Math.

    39. Students are cleaning a local park in groups. There are 50 boys & 75 girls. Each group has the same number of boys and the same number of girls. What is the greatest possible number of groups? 40. You are dividing a community garden 35 m long by 15 m

    asked by Stella
  86. Physics

    A space station consists of two donut-shaped living chambers, A and B, that have the radii shown in the figure. As the station rotates, an astronaut in chamber A is moved 1.50 x 102 m along a circular arc. How far along a circular arc is an astronaut in

    asked by Dreama
  87. physics

    A major-league pitcher can throw a baseball in excess of 46.2 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 18.9 m away from the point of release?

    asked by butcha
  88. physics

    According to its design specification, the timer circuit delaying the closing of an elevator door is to have a capacitance of 30.0 µF between two points A and B. (a) When one circuit is being constructed, the inexpensive but durable capacitor installed

    asked by capacitance q
  89. Chemistry

    A certain gas has a density of 1.053 g/L at 25C and 752 mmHg. What is the molar mass of this gas?

    asked by Chelsea
  90. combinatirics

    Please Help me with this question:Considering a 4*4 square grid,How many ways are there to fill each square with an integer from 1 to 10, such that the sum of each row and column is the same?The integers can be used multiple times

    asked by steve
  91. math

    A Competition Onstage Ever since Lisa auditioned for the musical Annie in the third grade, she had been seriously interested in musical theater. She loves to sing, dance, and act. She performs in two or three shows in her city each year. This year, Lisa

    asked by anonymous
  92. geomrtry

    how many sides does a regular polygon have it each exterior angle measures 40 degrees

    asked by jim
  93. BUSINESS 101

    If a firm has a current ratio of 2.00,it means that for every $2in ___it has $1in___ A.total assets;current liabilities B.current assets;current liabilities C.total assets;total liabilities D.current assets;total liabilities my answer is c can somebody

    asked by bella
  94. Math

    Jenna is cutting ribbon to make bows. She has two lengths of ribbon, one 24 inches long and one 36 inches long. She wants to cut the ribbon into equal lengths and not have any ribbon left over> Into what lengths can she cut the ribbon?

    asked by Victoria
  95. math

    In the basketball game, Sarah made three times as many 2-point shots as 3-point shots. She made 8 shots in all. How many 2-point shots did she make?

    asked by me
  96. Math

    The morning temperature was -3 degrees C. By afternoon it had warmed to 8 degrees C. How many degrees had the temperature risen?

    asked by Manuelita
  97. MATH

    Which of the following is an irrational number? a. negative square root of 5 B. 1/8 c. 0.3858585... d. negative square root of 64

    asked by Katie
  98. finance

    Your finance text book sold 49,500 copies in its first year. The publishing company expects the sales to grow at a rate of 23.0 percent for the next three years, and by 9.0 percent in the fourth year. Calculate the total number of copies that the publisher

    asked by varneca
  99. water chemistry

    What would be the disadvantage of placing softening before cascade aeration?

    asked by Hakili
  100. Science

    Calculate the amount of energy in the form of heat that is produced when a volume of 3.56 L of SO2(g) is converted to 3.56 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 bar and 25.0 °C. Assume ideal gas behavior.

    asked by Anna
  101. Algebra 2

    During one calendar year, a state trooper issued a total of 375 citations for warnings and speeding tickets. Of these, there were 37 more warnings than speeding tickets. How many warnings and how many speeding tickets were issued?

    asked by Anonymous
  102. Algebra 2

    Graph the linear system and estimate the solution. Then check the solution algebraically. 7x+y=-17 3x-10y=24 I have to have 4 labeled points and I'm not getting the fraction thing. Any help would be great!

    asked by Anonymous
  103. human resource

    The company has seven department stores in your city. One of your biggest problems is adequately training new salesclerks. 1. Design a three-day orientation/training program for new salesclerks. to be used. 2. Specify what methods could be used to evaluate

    asked by katherine
  104. Algebra 2

    Solve the system. Then classify the system as consistent and independent, consistent and dependent, or inconsistent. 24.) 4x+5y=3 6x+9y=9 26.) 1/2x -3y=10 1/4x +2y=-2

    asked by Anonymous
  105. Physics

    A sample of a monatomic ideal gas is originally at 20 °C. Calculate its final temperature of the gas if the pressure is doubled and volume is reduced to one-fourth its initial value.

    asked by Anon
  106. Algebra 1

    A scale model of the Golden Gate Bridge in San Francisco Bay has a main span that is 20 inches long. If the main span of the bridge is 4200 feet long, what is the scale of the model?

    asked by Gayle
  107. Physics

    When you push down on the handle of a bicycle pump, a piston in the pump cylinder compresses the air inside the cylinder. When the pressure in the cylinder is greater than the pressure inside the inner tube to which the pump is attached, air begins to flow

    asked by Anon
  108. math

    9. Cell phones were first invented in the early 1970s by Martin Cooper, vice-president of the Motorola company, and they were so large they were called “The Brick.” (1 point) cell phones invented Martin Cooper The Brick 10. This area of the country

    asked by anonymous
  109. math

    A log cabin in the shape of a rectangular prism is modeled using a scale of 1 cm : 0.6 m. If the dimensions of the model are 34 × 20 × 6 centimeters, what is the volume of the actual log cabin?

    asked by Jake
  110. school of engineering

    a motor of mass 1500 kg accelerates from 50 km/h to 100 km/h in 10 seconds.calculate. (i)The acceleration in metre/second2. (ii)The distance travelled. (iii)The force on the vehicle.

    asked by abdul
  111. Homework Help Calculus

    Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 1/100cm thick to a hemispherical dome with a radius of 18 meters. I tried it but I keep getting the wrong answer.Here's what I did below: sphere:

    asked by Molly
  112. Chemistry

    what is percent yield?

    asked by University of Zambia
  113. school of engineering

    A train of mass 200 tonne travelling at 140 km/h applies the brakes fiercely , so that the brakes lock and the wheels slides along the rails.it stops sliding 1000m. calculate. 1. The acceleration. 2. The longitudinal force on the rail. 3. The coefficient

    asked by abdul
  114. 6th grade math

    Dante can buy 20 marbles for $1.50. How many marbles can he buy for $27.00? Do you divide &27.00 by $1.50 then multiply that number by 20 to get 360 marbles?

    asked by Chris
  115. phyiscs

    A car has an acceleration of 0.5g. calculate the time for the car to accelerate from 10m/s to 25m/s

    asked by abdul
  116. Math

    Write each fraction or mixed number as a decimal. 2/8

    asked by Anonymous
  117. Mathematics

    Use Simpson’s rule to estimate ∫_0^2▒〖1/8 e〗^(x^2 ) dx with a maximum error of 0.1

    asked by Dust
  118. Algebra

    show me step by step how to solve t hese problems. 5 7/8 +(3 1/3 - 1 1/2) i cannot get this down please help

    asked by Sharon
  119. calc

    Find an equation of the tangent line to the graph of f(x) = (x3 − 3x2 + 1)(2x4 − 1) at x = −1.

    asked by hannah
  120. calc

    An ice hockey puck is sliding along a straight line so that its position is s(t) = t3 3 + t2 + t − 7/3 . At which times t is the velocity of the puck increasing? I tried deriviting the equation then solving for t and plugging in numbers to see if it was

    asked by hannah
  121. english language arts 2

    Identify the comma rule that the following sentence breaks: Although she loved her parents Sarah was eager to leave for college and be independent.

    asked by dominique
  122. physics

    An block of mass m , starting from rest, slides down an inclined plane of length L and angle θ with respect to the horizontal. The coefficient of kinetic friction between the block and the inclined surface is μ1 . At the bottom of the incline, the block

    asked by Anonymous
  123. 6th grade math

    It takes 1.5 hours to walk three miles. How far can he go if he walked for 4 3/4 hours?

    asked by Chris
  124. mathematics

    The cafeteria has 144 bananas, 36 pears, and 72 apples. Each student gets the same number of pieces of fruit. What is the greatest number of students who can receive fruit? The 48 members of a chorus will sit in rows in front of the 300 members of the

    asked by Aubrey
  125. Math help

    1. Which value is a solution of the equation 5 - 4x = -3 0 2 -3 1/4 2. Which ordered pair is a solution of the equation y = x - 4 (2, 6) (6, 2) (-2, 6) (3, -1) 3. Which ordered pair is a solution of the equation y = 3x (-2, -9) (-8, -18) (-8, -3) (-10,

    asked by Charlotte
  126. 6th grade math

    If Jack takes 6 hours to wash 4 cars then at that rate how man cars could be washed in 42 hours? we got answer of 28 cars but then how do you determine the rate the cars were being washed? the teacher gave answer of 2/3 cars per hour but we don't

    asked by Chris
  127. Math

    1. Multiplying to make 50. Ways to multiply with to factors. Ways to multiply with more than two factors. 2. Multiplying to make 72. Ways to multiply with two factors: Ways to multiply with more than two factors:

    asked by Kyle
  128. mat 117

    How do you factor the difference of the two squares? How do you factor the perfect square trinomial? How do you factor the same and difference of two cubes? Which of these tree makes the most sense to you?

    asked by Sharon
  129. Quantum Physics

    Suppose you are given an endless supply of qubit pairs in the state 1/sqrt(2)|00> + e^iphi/sqrt(2)|10>. To estimate the phase angle phi, you run Fourier sampling (i.e. Hadamard on each qubit followed by a standard basis measurement) on this state

    asked by imath
  130. Math

    Is it sometimes, always or never true that a number is a factor and a multiple of itself?

    asked by Donna
  131. Maths

    If the graph of y=(ax-5)/(x+b) does not intersect either of the lines x=7 or y=−3 , what is the value of a and b ?

    asked by CHRIS
  132. pre-calc/ trig

    Sinx=0

    asked by Amy
  133. mathematics (urgent)

    I eventually figured out the last one, so I'll only need some help with this: The cafeteria has 144 bananas, 36 pears, and 72 apples. Each student gets the same number of pieces of fruit. What is the greatest number of students who can receive fruit? I

    asked by Aubrey
  134. Math

    There are 48 apple slice in the fruit salad that Ben's dad prepared for dinner. The slices were cut from apples that were sliced into 7 pieces each. That means that there were 48/7 apples used. How many apples were used in the salad? Express the answer as

    asked by Anonymous
  135. English

    I'm writing a 5 paragraph about The Odyssey . I really need an attention graber ..

    asked by Francheska White
  136. social studies

    is having prades in like each holiday a tradition in north america?

    asked by plz help
  137. Computer Architecture

    A Silicon Valley company is looking to increase the performance of its workstations. Analysis of the applications that its customers are using has shown that the average response time breaks down into three main categories: CPU time, memory system time,

    asked by Abu A
  138. Algebra

    h^9-h^8+h-1 Factor by grouping Can someone help with this?

    asked by Christopher
  139. Combinatorics

    Please Help me with this question:Considering a 4*4 square grid,How many ways are there to fill each square with an integer from 1 to 10, such that the sum of each row and column is the same?The integers can be used multiple times

    asked by steve
  140. Math Explanation

    Explain why estimating before you divide 624/6 =helps you place the first digit in the quotient.

    asked by Anonymous
  141. Maths

    Suppose that a is an integer such that x^2+2xy−360y^2+ax+38y+361 can be factorized as the product of linear expressions in x and y. What is the value of a ?

    asked by CHRIS
  142. phydraulic

    A cylinder must move a 2000 lb load 2 ft. How much work must it perform?

    asked by Len
  143. Marketing

    Define the term international trade. Explain how the balance of international trade works within the economy. I found in my textbook at that definition of international trade is the exchange of goods and services among nations but I can't find the answer

    asked by Kaliska
  144. english

    9. Cell phones were first invented in the early 1970s by Martin Cooper, "vice-president" of the Motorola company, and they were so large they were called “The Brick.” (1 point) cell phones invented Martin Cooper The Brick 10. This area of the country

    asked by anonymous
  145. physics

    An block of mass m , starting from rest, slides down an inclined plane of length L and angle θ with respect to the horizontal. The coefficient of kinetic friction between the block and the inclined surface is μ1 . At the bottom of the incline, the block

    asked by Anonymous
  146. Physical Science

    If the strength of gravity is 9.8 newtons per kilogram, that means: a. each newton of force equals 9.8 pounds. b. each pound of force equals 9.8 newtons. c. each newton of mass weighs 9.8 kilograms d. each kilogram of mass weighs 9.8 newtons

    asked by unknown
  147. maths

    Solve the system. 3x2 - 2y2 = -5 x2 + y2 = 25 A. (3, 4), (3, -4), (-3, 4), (-3, -4) B. (4, 4), (5, 4), (3, -4), (1, –4) C. (-3, 4), (1, 4), (-3, -4), (2, -4) D. (1, 4), (2, –4), (–4, 3), (–3, –3) Find the coordinates of the corner points using

    asked by mdan
  148. PHYSICS

    A 970kg car is at the top of a 38m -long, 2.5 ∘ incline. Its parking brake fails and it starts rolling down the hill. Halfway down, it strikes and sticks to a 1280kg parked car. Ignoring friction, what's the speed of the joined cars at the bottom of the

    asked by Judith
  149. physical science

    which graph represents what happens to the pressure in a tire as air is added to the tire?

    asked by Anonymous
  150. Physics

    A 60.9 kg climber is using a rope to cross between two peaks of a mountain as shown in the figure below. He pauses to rest near the right peak. Assume that the right side rope and the left side rope make angles of 26.7° and 14.33° with respect to the

    asked by Sinisa
  151. phyics

    An airport has runways only 184 m long. A small plane must reach a ground speed of 40 m/s before it can become airborne. What average acceleration must the plane’s engines provide if it is to take off safely from its airport? Answer in units of m/s2

    asked by cram
  152. math

    a burro is standing near a cactus. the burro is 59 in. all. his shadow is 4 ft long. the shadow of the cactus is 7 ft long. estimate the height of the cactus

    asked by paula jones
  153. spell

    I am trying to figure out if Fact has a long a vowel sound? If I look in the dictionary how do I tell it a word has a long vowel sound

    asked by Daekwon
  154. Science

    What can scientists learn from the rate at which radioactive elements decay? A. a rock's absolute age* B. the relative age of rock layers C. where one soil horizon ends and the next begins D. the difference between molds and casts. After six half-lives,

    asked by Anonymous
  155. Calculus I

    If y^3 + y^2 = 7x^2 + 224 and y(2) = 6 then y'(2)= [???]

    asked by Abdul
  156. Chemistry

    Pu-238 is radioactive by alpha-decay (half-life 87.7 y). Each decay releases 5.6 MeV of energy. Pu-238 is sometimes used to power space probes. If all the decay energy can be converted to electric power, what mass of Pu-238 would be required to power a 22

    asked by Jane
  157. physics

    The velocity v(t) of some particle is plotted as a function of time on the graph below. The scale on the horizontal axis is 1 s per division and on the vertical axis 9 m/s per division. Initially, the particle is at x0 = 52 m. What is the position x of the

    asked by cram
  158. Math

    Write six hundred billion,two hundred thousand, two in expanded firm using exponents Please check 600, 000, 200, 002 (6×10^11)+(2×10^6)+(2×10^1)

    asked by Gio
  159. History

    What sensory imagery can you use to describe the Taino perspective on the encounter with the Europeans?

    asked by Franchesca
  160. physics

    Mary applies a force of 77 N to push a box with an acceleration of 0.45 m/s2. When she increases the pushing force to 82 N, the box's acceleration changes to 0.74 m/s2. There is a constant friction force present between the floor and the box. (a) What is

    asked by Anonymous
  161. Chemistry - help please

    In an experiment, when 25 mL of 5.5 x 10^-3 M NaOH is mixed with 30 mL of 7.5 x 10^-3 M Fe(Br)2, a hydroxide compound is formed (Ksp = 1.8 x 10^15). Which of the following describes the resulting solution? a. The product is unsaturated b. The mixture

    asked by Eren
  162. physics

    You throw a ball downward from a window at a speed of 2.7 m/s. How fast will it be moving when it hits the sidewalk 2.8 m below?

    asked by julie
  163. Chemistry

    If we ignore the small fraction of U-234, natural uranium has a concentration of 99.28 atom% of U-238 and 0.72% U-235. Their half-lives are, respectively, 4.68*109 and 7.038*108 years. (a) In the future, will the U-238 percentage be higher or lower? (b) In

    asked by Jane
  164. English

    Identify the subordinate clause in the sentence below. We will go on a run after dinner is over. a. We will go b. will go on a run c. on a run after dinner d. after dinner is over. D?

    asked by Anonymous
  165. maths

    #1 x + 2y < 18 x + y < 10 2x + y < 18 x, y > 0 Maximize z = 3x + 4y subject to the given region. A. Maximum value of 42 at (6, 6) B. Maximum value of 38 at (2, 8) C. Maximum value of 36 at (0, 9) D. Maximum value of 32 at (8, 2) #2 x + 2y < 18 x + y > 10

    asked by anonymous
  166. physics

    A spring scale on a rotating platform indicates that the horizontal force on a 0.681 kg mass is 1.48 N when the mass is 2.62 m from the axis of rotation. How long does it take for the platform to make one revolution?

    asked by Anonymous
  167. physics

    How many photons of visible light result if a 60-keV x-ray photon is converted into green visible light with 10% efficiency?

    asked by Jordan
  168. physics

    A highway curve with a radius of 650 m is banked properly for a car traveling 100 km/h. If a 1600- kg Porshe 928S rounds the curve at 230 km/h, how much sideways force must the tires exert against the road if the car does not skid?

    asked by Anonymous
  169. physics

    Passengers riding in the Great Six Flags Air Racer are spun around a tall steel tower (see the figure). At top speed the planes fly at a 56.0 o bank approximately 12.0 m from the tower. In this position the support chains make an angle of 56.0 o with the

    asked by Anonymous
  170. Chemistry

    A salt was completely soluble in water. When this solution was treated with AgNO3 no precipitate was formed. What anions could be present?

    asked by Shines
  171. ASU

    How much MnO2(s) should be added to excess HCl(aq) to obtain 215 mL of Cl2(g) at 25 °C and 705 Torr?

    asked by Kara
  172. physics

    We release an oil drop of radius r in air. The density of the oil is 640 kg/m3. C1 and C2 for 1 atmosphere air at 20∘ C are 3.90 × 10−4 (kg/m)/sec and 0.73 kg/m3, respectively. How small should the oil drop be so that the drag force is dominated by

    asked by Help, please!
  173. Calculus Homework

    Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.01cm thick to a hemispherical dome with a radius of 18 meters.

    asked by Holly
  174. Geometry

    if m

    asked by Anonymous
  175. socials

    in what ways did the conferences reflect Victorian value and beliefs? Describe what a constitutional conference wold look like today, and who would be included.

    asked by rochelle
  176. Chemistry

    A 9.00-L container holds a mixture of two gases at 43 °C. The partial pressures of gas A and gas B, respectively, are 0.257 atm and 0.579 atm. If 0.110 mol a third gas is added with no change in volume or temperature, what will the total pressure become?

    asked by Kara
  177. Physics Newtons Law

    If a cart and a string are attached and there is a weight on the end of the string to pull the cart, and both the cart and the weight on the string were the same.. what would I expect acceleration to be using Newton's second law?

    asked by Katie
  178. physics

    A block of mass m = 4 kg slides along a horizontal table when it encounters the free end of a horizontal spring of spring constant k = 14 N/m. The spring is initially on its equilibrium state, defined when its free end is at x=0 . Right before the

    asked by ss01
  179. physics

    A small bead of mass m is constrained to move along a frictionless track as shown. The track consists of a semicircular portion of radius R followed by a straight part. At the end of the straight portion there is a horizontal spring of spring constant k

    asked by ss01
  180. accounting

    You won a lottery which pays $10,000 per year for 10 years (at the end of each year). Assuming a discount rate of 8% calculate the present value of your expected winnings

    asked by matthew allen
  181. Calculus Homework

    Let A(t) be the (changing) area of a circle with radius r(t), in feet, at any time t in min. If the radius is changing at the rate of dr/dt =3ft/min, find the rate of change of the area(dA/dt) at the moment in time when r = 16 ft dA/dt=

    asked by Kelly
  182. Geometry

    2. In triangleRST, mangR = (2x + 10)­­°, mangS = (2x + 25)°, and mangT = (x – 5)°. Find the value of x. (Points : 1

    asked by Brennon