Questions Asked on
May 3, 2012

  1. statistics

    the life of light bulbs is distributed normally. The variance of the life time is 225 and the mean lifetime of a bulb is 590 hours. Find the probability of a bulb lasting for at most 603 hours. Yeah, WTF??? Why me!??!

    asked by Logan
  2. Statistics

    According to insurance records a car with a certain protection system will be recovered 89% of the time. Find the probability that 3 of 7 stolen cars will be recovered.

    asked by sc
  3. english

    need help on italicized portion of the sentence? 1.The weather remaining turbulent, we will postpone our canoe trip.

    asked by larry
  4. Geometry

    Zoe the goat is tied by a rope to one corner of a 15 meter-by-25 meter rectangular barn in the middle of a large grassy field. Over what area of the field can Zoe graze if the rope is 10 meters long? 20 meters long? 30 meters long?

    asked by Anonymous
  5. geometry

    A park maintenance person stands 16 m from a circular monument. Assume that her lines of sight form tangents to the monument and make an angle of 47°. What is the measure of the arc of the monument that her lines of sight intersect? Please don't just

    asked by Samuel
  6. algebra

    The triangle and square shown below have the same perimeter. what is the length of one side of the square

    asked by shuntay
  7. Physics

    A 52kg ice hockey player moving at 11m/s slows down and stops over a displacement os 8.0m. Calculate the net force of the skater.

    asked by Mike
  8. math

    Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions 3a+5b=-19 5a-27b=145

    asked by john
  9. Physics

    A chlorine ion contains 17 protons, 16 neutrons, and 18 electrons. What is the net charge of the ion in Coulomb?

    asked by Alaine'
  10. physics

    Two loudspeakers are placed above and below each other and driven by the same source at a frequency of 3.70 102 Hz.An observer is in front of the speakers at point O, at the same distance from each speaker. What minimum vertical distance upward should the

    asked by andrew
  11. Physics

    Richard stands on the flatbed car of a moving train playing an a on his horn. the note has a fundamental frequency of 220 Hz. Calculate weather or not the train could move fast enough for a stationary observer on the ground to hear the first overtone of

    asked by chardonay
  12. statistics

    The below table shows the probabilities generated by rolling one die 50 times and noting the up face. What is the probability of getting an odd up face? roll 1 Probability 0.22 roll2 probability 0.10 roll 3 probability 0.18 roll 4 probability 0.12 roll 5

    asked by sc
  13. science

    Richard stands on the flatbed car of a moving train playing an a on his horn. the note has a fundamental frequency of 220 Hz. Calculate weather or not the train could move fast enough for a stationary observer on the ground to hear the first overtone of

    asked by chardonay
  14. math

    one out of 43 high school ball players plays college ball.one out of 38 college players plays professional ball. what fraction of high school players plays professional ball?

    asked by Lisa
  15. English arts 1 Nouns

    Aaron plans to attend college once he completes this course workbook. im suppose to identify the nouns in the sentence the nouns are Aaron,college,workbook right? im debating on course idk? help lol

    asked by Joshua
  16. physics- MC QUESTIONS

    1. You push a block up a ramp with friction. The block is moving at constant speed ? A) The force you push with is greater than the force of kinetic friction. B) The force you push with is less than the force of kinetic friction. C) The force you push with

    asked by emiie
  17. math1

    (ii) A factory has two machines. Past records show that the first machine produces 40% of output and the second machine produces 60% of output. Further 4% and 2% of the products produced by the first machine and the second machine were defectives. If a

    asked by pankaj
  18. Geometry

    Three balls are packaged in a cylindrical container. The balls just touch the top, bottom, and sides of the cylinder. The diameter of each ball is 13 cm. a. What is the volume of the cylinder rounded to the nearest cubed centimeter? b. What is the total

    asked by LeXi<3
  19. Physics

    A chlorine ion contains 17 protons, 16 neutrons, and 18 electrons. What is the net charge of the ion in Coulombs?

    asked by Alaine'
  20. chemistry

    for each of the following unbalanced equations how many moles of thr first product are produced if 0.625mol of the second product forms.

    asked by nimo
  21. Physics

    Given: The universal gravitational con- stant is 6.672 × 10−11 N m2/kg2. Objects with masses of 152 kg and 269 kg are separated by 0.45 m. A 53.5 kg mass is placed midway between them. Find the magnitude of the net gravitational force exerted by the

    asked by Bob
  22. hyperbola

    the roof of a building is in the shape of the hyperbola y^2-x^2=40 , where x and y are in meters.determine the distans , w , between the walls.

    asked by voytek
  23. statistics

    a coin is tossed 16 times. What is the standard deviation?

    asked by Ambra
  24. math

    Jill is 20 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 1.5 kilometers per hour. They meet in 5 hours. How fast is Joe walking?

    asked by Alberto
  25. algebra

    a tree 5 ft tall growns an average of 8 in each year, write an ewquation to model the trees height h inches after y years

    asked by karen
  26. Chemistry

    Nitrogen gas (N2) reacts with hydrogen gas (H2) to form ammonia (NH3). At 200 oC in a closed container, 1.1 atm of nitrogen gas is mixed with 2.1 atm of hydrogen gas in an otherwise empty container. At equilibrium, the total pressure is 2.2 atm. Calculate

    asked by Jake
  27. English II - Animal Farm

    My assignment is to find the human vice that each of the seven commandments intended to prevent in the novel, Animal Farm. First, I do not know what human vice the following two are supposed to prevent: Whatever goes upon two legs is an enemy. Whatever

    asked by John
  28. MATH

    Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions 2x-y=0 3x+y=5

    asked by eric
  29. Physics

    a. A prismatic object 8 cm wide by 16 cm long is weighed in water at a depth of 20 cm and found to weigh 11 N. What is its weight in water? b. A light bulb in flashlight is labelled 2.4 V, 0.7 A. Find the equivalent resistance and the current if three of

    asked by Sibusiso
  30. Math(differential equations)

    An 8 lb weight stretches a spring 8 feet. The weight is moving through a surrounding medium that has a damping effect equal to the instantaneous velocity of the weight. Initially the weight is displaced 4 feet below the equilibrium position with a downward

    asked by Meredith
  31. physics

    A fisherman's scale stretches 2.8 cm. when a 2.1 kg. fish hangs from it. What will be the frequency of vibration if the fish is pulled down and released so that it vibrates up and down?

    asked by nicole
  32. chemistry

    how much heat is needed to convert 30 g of water at 10 C to 110 C

    asked by jason
  33. math

    marty has saved $72. He spent $8 on a video rental. write a ratio as a fraction in simplest form to srpresent what portion of his savings he has left

    asked by Taylor
  34. matrix products

    The table shows the market prices per pound that a trucker can get for his load of fruit in three cities: San Francisco, Las Vegas and Los Angeles. S.F L.V L.A PEACHES $0.50 $0.60 $0.40 APPLES $0.40 $0.80 $0.50 The trucker has a load of 5000 lbs. of

    asked by voytek
  35. to ms.sue

    is there a website where i can take a review test of the test i have heard of a land because i forgot to take my practice book home and tomorrow is the test.

    asked by Celest
  36. phisycal sciences

    Which of the following properties did Rutherford use in his experiment? A. the negative charge of the alpha particles and the random distribution of protons B. the negative charge of the alpha particles and the positive charge of the gold foil C. the

    asked by david
  37. chemistry

    if CaC2 + 2H2o -> C2H2 + Ca(OH) then how many grams of H2o are needed to react with 483 grams of calcium carbide?

    asked by Charlotte
  38. physical science

    a skydiver steps from a helicopter and falls for 5 seconds before reaching her terminal velocity.during this 5 second interval, her acceleration;

    asked by Anonymous
  39. math

    A pendulum bob swings 5.0cm on its first oscillation.On each subsequent oscillation the bob travels 2/5 of the previous distance. Find the total distance the bob travels before coming to rest.

    asked by voytek
  40. Statistics

    The serum cholesterol levels in men aged 18 to 24 are normally distributed with a mean of 178.1 and a standard deviation of 40.7. A group of 9 men aged 18 to 24 randomly selected. 1. Find the probability that there are at least 2 men in the group whose

    asked by Kim
  41. math algebra

    Solve the following system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions. -a+b=-4 2a-3b=-2

    asked by jorge
  42. Physics

    The grindstone weighs 80.0 kg, and has a radius of 0.320 m. The coefficient of friction between the axe and the stone is mk = 0.620 m. The radial component of the force of the axe against the grindstone is closest to...

    asked by Kelsey
  43. physics

    Light from a 550 nm source goes through two slits 0.040 mm apart, a screen is 1.5 m from the slits. a)what is the angular separation of the of the two first order maxima occurring on the screen? b)what is the distance between the two first order maxima

    asked by paul
  44. English (poetry)

    In the poem Kubla Khan by Samuel Taylor Coleridge, how water and ice images are used in the poem. What ideas or feelings are expressed by the poet with this imagery?

    asked by Yc2012
  45. chemistry

    which of the following is formed when CH3ONa is heated with C2H5I : 1 dimethly ether 2 ethly methly ether 3 methyl propyl ether 4 diethyl ether

    asked by Tulika
  46. trig

    If x and y are complementary angles and 5 tan x-12=0,calculate by using a diagram the value of 2sin(squared)x+cos y.

    asked by Francis
  47. Physics

    The grindstone, in the shape of a solid cylinder, weighs 80.0 kg, and has a radius of 0.320 m. The coefficient of friction between the axe and the stone is mk = 0.620 m. The radial component of the force of the axe against the grindstone is closest to...

    asked by Kelsey
  48. social studies

    which of the following best illlustrates how a president can use the news media to reach the largest segment of the public?

    asked by aaron
  49. physics

    A rope of mass 0.78 kg is stretched between two supports 31 m apart. If the tension in the rope is 1800.0 N, how long (in seconds) will it take a pulse to travel from one support to the other

    asked by jessica
  50. chemistry

    If 34.7 mL of 0.210 M KOH is required to completely neutralize 30.0 mL of a CH3COOH solution, what is the molarity of the acetic acid solution?

    asked by Heny
  51. physics

    A car (mass = 1100 kg) is traveling at 33.0 m/s when it collides head-on with a sport utility vehicle (mass = 2800 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 Shital
  52. math

    marty has saved 72 dollars he spent 8 dollars write a ratio as a fraction in simplest form to represent what portion of his saving he has f\left

    asked by Taylor
  53. chemistry

    Mg+2 is isoelectronic species with ................ (give 2 species)

    asked by pooja
  54. math

    rewrite log (10a^(4))/(3b^(3))

    asked by Anonymous
  55. Mortgage Class

    A borrower received a 30-year ARM mortgage loan for $120,000. The start rate was 3.50% and the loan adjusts every 12 months for the life of the mortgage. Rate caps are 3/2/6. The index used for this mortgage is the LIBOR. For this exercise, let’s say it

    asked by Pauline Holcomb
  56. Chemistry

    A 3.43 L flask is filled with carbon monoxide at 27 °C until the pressure is 8.31 atm. Calculate the total pressure after 2.09 moles of carbon dioxide has been added to the flask. (R=0.082 L-atm/K mol)

    asked by Brandon
  57. Physics

    Given: The universal gravitational con- stant is 6.672 × 10−11 N m2/kg2. Objects with masses of 152 kg and 269 kg are separated by 0.45 m. A 53.5 kg mass is placed midway between them. Find the magnitude of the net gravitational force exerted by the

    asked by Bob
  58. pre algebra

    how do u know the answers shown on the computer for What do they call the international hoola hoop championships?are correct

    asked by barb
  59. physics

    A 10.67 kg bowling ball has speed 4.35 m/s before hitting the floor. A(n) 66.5 g golf ball flies at much higher speed, so the two balls have exactly same kinetic energy. What is the speed of the golf ball? Note: neglect rotation of either ball. Answer in

    asked by Bob
  60. Finite math

    A newly married couple decides to keep having children until they have a girl. What is the probability that the couple will have at least 5 children?

    asked by MV
  61. math

    The width of a rectangle is fixed at 18cm. what length will make the perimeter greater than 86cm the lenngth must be greater than cm.

    asked by Randy
  62. Algebra 2

    Solve the equation. Round answers to the nearest hundredth. log(7x+1)=log(x-2)+1

    asked by RAD
  63. chemistry

    Calculate the mass of HCl required to prepare 2.5 liters of a 0.08 molar solution of HCl.

    asked by alexandrea
  64. abnormal child psychology

    someone who focuses narrowly on negative events for long periods of a time has. A-negative attitude. B-depressive manner. C-negative focus. D-depressive ruminative style.

    asked by cam
  65. Jackson

    in the story of an hour Kate Chopin is primarily concerned with the

    asked by sas
  66. trigonometry

    In the triangle ABC, the sides AB and BC have lengths 7cm and 8cm respectively, and angle B is obtuse. the area of the triangle is 14 root 3 cm^2. Find a.The size of angle B b. The length of AC

    asked by lindsay
  67. math

    For the geometric series 50+48+... a. 867.373 is the approximate value of a partial sum of the series. How many terms were added to get this number? b. To what number does the serveries converge?

    asked by Matt
  68. Calculus grade 12

    Explain why three directional vectors of the plane cannot me mutually perpendicular .

    asked by J
  69. chemistry

    Calculate the partial pressure of propane in a mixture that contains equal numbers of moles of propane (C3H8) and butane (C4H10) at 20 °C and 505 mmHg. (R=0.082 L-atm/K mol)

    asked by Brandon
  70. math binomial expansion

    binomial expansion (3a^2-2b^3)^4 is this right? (3a^2)^4+4(3a^2)^3(-2b^3)+8(3a^2)^2(-2b^3)^2+12(3a^2)(-2b^3)^3+(-2b^3)^4 81a^8+4(27a^6)(-2b^3)+8(9a^4)(4b^6)+12(3a^2)(-8b^9)+16b^12 final answer 81a^8-216a^6b^3+288a^4b^6-288a^2b^9+16b^12

    asked by Anonymous
  71. physics

    A +50 micro coulomb and 30 micro coulomb charge are placed 50cm apart. a)what is the direction and magnitude of thee electric field at a point P, in between them, that is 10cm from the 30 micro coulomb charge? b)if an electron is placed at rest P, what

    asked by phil
  72. physics

    A +50 micro coulomb and 30 micro coulomb charge are placed 50cm apart. a)what is the direction and magnitude of thee electric field at a point P, in between them, that is 10cm from the 30 micro coulomb charge? b)if an electron is placed at rest P, what

    asked by phil
  73. language arts

    I have an assignment where it says to write a sonnet with 14 lines but they also say to have 14 syllables per line. I thought it was 10 syllables per line. Can anyone help ?

    asked by Lee
  74. Physics

    Given: The universal gravitational con- stant is 6.672 × 10−11 N m2/kg2. Objects with masses of 152 kg and 269 kg are separated by 0.45 m. A 53.5 kg mass is placed midway between them. Find the magnitude of the net gravitational force exerted by the

    asked by Bob
  75. Health

    How does the system of health care provision in the U.S. support the goals of public health? Please provide an example.

    asked by DonnaK
  76. English (Mrs,Sue!!)

    Mrs.Sue, I wrote a paper on research proposal. Now, my teacher is asking us to write the steps on how we wrtoe the paper. Can you reword these questions for me? thank you so much!! "What techniques did you use as you thought through the issue? " "What

    asked by Allie
  77. college math

    Evaluate the expression for the given values. 6v less 12w for v = 10 and w = 2

    asked by patty
  78. Algebra

    kaylin throws two dice. the difference in face value between the two dice is three, and the product of the numbers thrown is equal to twice the sum of two numbers. Write and solve an algebraic equation that finds the numbers kaylin threw.

    asked by JD
  79. Chemistry help asap

    I need help with this ideal gas law problem I know how to set the equation up but I'm not getting the correct answer. How many moles of gas can be contained in a 1.44 L flask at 32Celsius and 93.5kPa?

    asked by Candy
  80. math

    What is the product of 6.28 x 0.095

    asked by stephanie
  81. Chemistry

    What is the oxidation state of: O2 HSO4- Na2HPO4 CrCl3

    asked by Allison
  82. geometry

    If a circle has an area of 25 pi cm squared, find the circumference of the circle? a. 5 squared cm b. 10 squared cm c. 50 sqaurred cm d. 156.25 squared cm

    asked by Jessica
  83. Chemistry

    Which of the following combinations would require an electrolytic cell? coat aluminum onto iron coat iron onto lead coat copper onto tin coat calcium onto iron Please help.

    asked by Ann
  84. Math

    Brett wants to use 40 feet of twine to mark off a rectangular area in his yard for a garden. What are the length and width for a garden with the greatest area?

    asked by CJ
  85. science

    Draw a free body diagram to show the relationship of forces on a 200 kg boulder resting on a 15degree incline. Include the magnitude of the force applied by an aadvark as it holds the boulder in place.

    asked by mona
  86. History of Health Care Reimbursement System

    I included the answers below but i don't know if my answers are correct please send me your opinions. thanks 1.By creating a committee on social welfare, the American Association of Labor Legislation helped to A. Decrease public hospital costs. B.

    asked by Lerma
  87. Statistics

    An insurance sales representative selects 4 policies to review. The group of policies she can select from contains 10 life policies, 5 automobile policies, and 3 homeowners policies. Find the probability of selecting all life policies. The number of ways

    asked by Ambra
  88. math log

    log[3](x-9)=3 I'm not sure If its right x+9=3^4 x+9=81 x=72

    asked by Anonymous
  89. geometry

    Given the equation of the circle (x – 9)2 + y2 = 484, the center of the circle is located at __________, and its radius has a length of __________ units.

    asked by Anonymous
  90. solve algebraically

    y=2x+6 x^2+y^2=8

    asked by voytek
  91. help plz math

    ln(3x+5)-ln(4)=ln(x-1)

    asked by Anonymous
  92. Chemistry-Conversions

    Can you please show me how to set up these conversions (how to do each of these conversions) Question- The pressure of gas is measured ay 550 mm Hg. Calculate the pressure in: a. Torr b. lb/in2 c. atm d. in Hg Can someone other than DrBOB answer this

    asked by KL
  93. programmar

    / Cooper College maintains a master file of students and credits earned // Each semester the master is updated with a transaction file // that contains credits earned during the semester // Each file is sorted in Student ID number order start Declarations

    asked by jan
  94. Math

    Help Homework : MaKE A TABLE:relate primeter and area Amaya has 24 inches of ribbon she can glue around the edge of a rectangular gift box lid. if she wants to use all the ribbon without any overlapping, what are the length and width of a gift box lid with

    asked by Dee
  95. chemistry

    1. mass of flask + cap = 92.53 g 2. mass of flask + cap + condensate = 94.34 g 3. mass of condensate = 1.81 g 4. volume of flask = 160 ml 5. temperature of water = 99.3 celsius 6. barametric pressure = 757 ml of mercury 7.. molar mass of gas(experimental)

    asked by preshi
  96. Chemistry

    How many moles of a gas do you have if it is under 800.mmHg of pressure in a 500.mL flask at a temperature of 32 degrees fahrenheit?

    asked by Lindsey
  97. algebra

    find the difference (-7x^2 + 5x -9) - ( 2x^2 + 7x + 5)

    asked by charisse
  98. Calculus grade 12

    1. a) Write the vector and parametric equations of the line through the points A(6, -1, 5) and B(-2, -3, 6). b) Find another point on the line in (a).

    asked by J
  99. math

    9C5 i got 126, is that right?

    asked by Anonymous
  100. Art

    I left out a last paragraph. Thank you very much, Writeacher. 1) In a tennis match there must be around sixty tennis balls, because everything happens very quickly. 2) The players must also have a lot of rackets, because if a player breaks his racket, he

    asked by Frank
  101. Chemistry College

    A 79.1 g mixture of the compounds calcium chloride and sodium sulfide is 80.9 % by mass sodium sulfide. The compound sodium sulfide is 58.9 % by mass sodium. Calculate the mass (g) of sulfur in the mixture. thanks.

    asked by Lance
  102. algebra 2

    Write the equation for a parabola with vertex (-2 , 3) and focus ( -2, 1).

    asked by amber
  103. Intermediate Algebra

    Create a list of six questions on solving equations with absolute value symbols that I will try to research, address, discuss, and/or express? Example: Google Earth: The Google Earth image shows the western side of The Mall in Washington D.C. The distance

    asked by Roger
  104. English

    Andy likes to get a point of view before he reads to get the "big picture." Narrative text, or expository text?

    asked by Anrhony
  105. How do you

    Write the standard equation for the circle center (–6, –8), that passes through (0, 0). How would someone do this? I have been looking through all my notes from class and I don't understand how to do it.

    asked by Samuel
  106. Calculus

    An important problem in mathematics is that of root finding: that is, given a function f (x), finding any roots of f in an interval. Exact methods exist for many functions: • In the case of a linear function f (x) = ax + b, this is easy. – If a ≠ 0,

    asked by Kim
  107. physics

    A 10.67 kg bowling ball has speed 4.35 m/s before hitting the floor. A(n) 66.5 g golf ball flies at much higher speed, so the two balls have exactly same kinetic energy. What is the speed of the golf ball? Note: neglect rotation of either ball. Answer in

    asked by Bob
  108. math

    Inverse of 275? I think it's -275, but I am not sure.

    asked by Josh
  109. geometry

    bisects and is perpendicular to line segments and . = 96 inches, and line segment = 52 inches. What is the length of ?

    asked by Anonymous
  110. math

    Round 0.681 to the nearest tenth. question 2: Estimate 17.64+9.213 by first rounding each number to the nearest tenth.

    asked by i need help please2
  111. math help please

    -2x^2+3x-1 give axis, vertex,domain, range, and intercepts

    asked by Anonymous
  112. math

    Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March

    asked by Anonymous
  113. Quimica

    Qual o cálculo para a preparação de uma solução de ácido clorídrico a 1%? normalmente o comercializado é (HCL P.A. 37%m/m, 1,18g/ml).

    asked by Simone
  114. math

    Round 0.681 to the nearest tenth.

    asked by i need help please4
  115. chemistry

    how can i find pH using scientific notation? 1*10^1 1*10^2

    asked by vinny
  116. physics

    two children ride bicycle towards each other with instant velocity of 20m/s and 10m/s. Each child releases a ball 6m above the ground with forward horizontal velocity of 40m/s relative to the bicycle. if the two balls collide in above the ground. what was

    asked by ridhi
  117. Ashford

    find the x- intercepts and y intercepts of the function f (x)=2x-8

    asked by Angela
  118. Math

    Linear equations using matrix method 2x-4y=0 3x-2y=3

    asked by Nikea
  119. english

    If there is a problem with a given sentence, write the letter corresponding to that problem in the appropriate blank. If there is no problem with the sentence, put “C” in the blank. A. Dangling/Misplaced Modifier B. Parallelism Error C. Correct

    asked by Anonymous
  120. math 221

    Talk about the levels of measurements, giving examples of the level you define.

    asked by angel long
  121. math

    Find the product 3/2 x 4/5 =

    asked by stephanie
  122. math

    i need a factor tree for 800

    asked by Michael
  123. Algebra

    In Vanessa's coin bank there are 4 times as many quarters as nickels, 2 fewer dimes than nickels, and 15 pennies. The total amount in the bank is $5.80. How many of each coin are in the bank? A. Assign a variable to the unknown quantity. B. Write an

    asked by Miranda
  124. math

    a drawing of a deck has a scale of 1 inch to 5 feet. the actual deck is 18 feet long.how long is the deck in the scale drawing?

    asked by jhon
  125. Office management

    (1) The best reference a potential job applicant can use in a reśumé is a (an) A. Next-door neighbor B. aunt or uncle C. Past teacher D. Former supervisor I choose (C) What would you suggest, could be (D) as well .

    asked by Kayla
  126. physics

    what must an object do in order for the distance it traveled to be the same as its displacement.

    asked by lisa
  127. math

    a rectangle has the length twice the side of this square and width three units less than the side of this square. if the two areas are equal, what are the squares dimensions (w * h)?

    asked by Shelbee
  128. physics

    a horse walks 56 meters in 75 second. what is his average velocity?show the work

    asked by lisa
  129. Calculus grade 12

    Determine an equation for the line parallel to 2x + 6y + 4z = 1 and contains the point P(3, 2, 1).

    asked by J
  130. physics

    a car is driving at 35 m/s when the driver hits the breaks causing the car to accelerate at -5 m/s How long will the car take to stop show your work

    asked by lisa
  131. Math

    3/n + 3/10 =

    asked by Karen
  132. Art

    Thank you very much for your suggestions. I urgently need your help to check these statements on tennis. 1) The most important tennis shoots are forehand and backhand. These shoots are very important because when the ball bounces you must hit the ball with

    asked by Frank
  133. math

    For the passengers in the SRS, what is the approximate probability that the mean length of time for them to get through security will be less than 18 minutes?

    asked by noe
  134. Maths

    Consider the Ferris wheel above. It has an axle standing 38m off the ground and a radius of 35m. The wheel takes 5 minutes to complete one revolution. The wheel moves in clockwise motion and you are sitting in one of the carriages which are horizontally in

    asked by Emad
  135. intro to chemistry (college)

    A 64.8 g mixture of the compounds potassium sulfide and calcium oxide is 17.1 % by mass potassium sulfide. The compound calcium oxide is 71.5 % by mass calcium. Calculate the mass (g) of oxygen in the mixture. mass % = mass part/mass whole x 100. I

    asked by James
  136. algebra 2

    Classify the conic section . Write its equation in standard form. 4x^2-y+3=0?

    asked by amber
  137. performing and visual arts

    What is another name for Gherardo Starnina? .Master of Bambino Vespo .Gentile da Fabriano .Duccio Buoninsegna .Giotto Bondone

    asked by Emily
  138. Geometry

    A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory. There are 100 seniors, 150 juniors, and 200 sophomores who applied. Each senior's name is placed in the lottery 3 times; each junior's name, 2

    asked by Rachel
  139. visual and performing arts

    From what Greek philosopher did Abbot Suger draw inspiration? .Aristotle .Socrates .Pythagoros .Pseudo-Dyonysius

    asked by Emily
  140. visual and performing arts

    Explain why the Chartres Cathedral both is and isn't an example of the "High Gothic" style. Be sure to reference specific pieces of art in your response.

    asked by Emily
  141. Math

    What is the larger root of the equation y^2+4y-21=0

    asked by Mushda
  142. analyzing a poem!

    The eye is drawn to that single yellow star that no wise man will follow. The hunched men in caps, the grimacing woman her eyes screwed up, cheeks hollow. We look and look again until we burn a hole in the paper. We strive to learn from their resignation

    asked by bkue
  143. Math

    What is the larger root of the equation y^2+4y-21=0

    asked by Mushda
  144. Science

    Living organisms animals

    asked by Keinasia tutt
  145. Foreign languages

    Can you check these last sentences on the same theme? Thank you very much, Writeacher. 1) The server always calls his score first. If the server wins the first point, he gets a score of 15. The second point is called 30. The third point is called 40 and

    asked by Frank
  146. math

    proportions 4/21=x/168

    asked by Taylor
  147. math

    In sample of 1000 TV viewers, 330 watched a particular programme. Find 99% confidence limits for TV viewers who watch this programme .

    asked by pankaj
  148. physics

    A ball droppred from a tall building find the balls velocity after 7 seconds show all works please

    asked by lisa
  149. physics

    A ball its thrown straight up into the air at 50 m/s find the balls velocity after 8 seconds show all work please

    asked by lisa
  150. Math

    Assume that the cost of a college education increases an average of 5% per year. If the in-state tuition at the University of Florida is $2256 per year, what will the tuition be in 10 years?

    asked by Haylie
  151. chemistry

    what is the shape of p-orbital.........

    asked by pooja
  152. chemistry

    1 The size of cation is ...... and the anion is ........ than atom. 2 The removal of an electron from an atom results in the formation of a ....... the size of which is ........ than that of the atom.

    asked by pooja
  153. english

    whole history from early man to indus valley civilization.

    asked by pooja
  154. physics

    A ball is thrown straight up in the air A) What is its velocity at the top of its path? B) What is acceleration at the top of its path

    asked by lisa
  155. physics

    Yes Orno? is the situation described an example of a free fall? A) a ball falls out of the window. B) Roy has just hit a base ball through the air. C)A bird is flying over your house.

    asked by lisa
  156. English

    I urgently need you to revise these sentences. Thank you. 1) Some pupils haven't received any emails from their partners yet. Could you spur them to answer? 2) As you suggested, I've asked my students, who haven't got a partner yet, to forward their emails

    asked by Frank
  157. pre algebra

    solve whether the sequence is arithmetic or geometric if it is arithmetic or geometric,state the common difference or common ratio and write the next three terms of the sequence 10,18,26,34

    asked by keith
  158. Chemistry

    A patient with untreated diabetes may have a blood concentration of acetone of 20mg/100mL. Determine the molar mass of acetone and use this number to convert this concentration to mol/L. Okay, so I was able to determine the molar mass of acetone (=

    asked by Hannah
  159. math

    find the sum of the first 10 terms of geometric series with a[2]=(1)/(2) and r=2

    asked by Anonymous
  160. math

    expand as a binomial series (p^2 + 3h)^4

    asked by Naomi
  161. Math-Algebra 1

    I Really Need Help With This Question!! What is the area of the label on the side of a soup can if the radius of the can is 2 inches, the height is 4 inches, & the label completely covers the sides? Answers: a.) 16 & pie symbol square inches b.) 16 square

    asked by Taylor Leigh
  162. Math-Algebra 1

    I Really Need Help With This Question!! What is the area of the label on the side of a soup can if the radius of the can is 2 inches, the height is 4 inches, & the label completely covers the sides? Answers: a.) 16 & pie symbol square inches b.) 16 square

    asked by Taylor Leigh
  163. African American Lit

    What were the controversies of the black arts era?

    asked by Anonymous
  164. Physics

    Gravity on the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 55.3 kg dune buggy on the moon?

    asked by Anonymous
  165. math

    18 Estimate 8128 /18 by first rounding each number so that it has only nonzero digit. 20. Find the digits in the tens place, in the tenths place, and in the ten thousandths place for the following number. 465.2587

    asked by i need help please
  166. math

    what is 4/21=x/168

    asked by Taylor
  167. math

    Isabel found three pieces of cable in her tool drawer. Here are their lengths (in meters). 10.43 ,13.2 ,9 What is the total length of the three pieces? question 2: Lashonda needs to drive 20 miles to work. So far, she has driven 2.6 miles. How many more

    asked by i need help please3
  168. math->converges

    25,-10,4 evaluate converges ended up with 10/7, is that right?

    asked by Anonymous
  169. application

    i'm writing a officer aplication and need to write a bio, how long should the bio be?

    asked by joee
  170. vocabulary

    the what definition of gloomy is dismal or depressing

    asked by keaira
  171. vocabulary

    blank definitions are subject to individual interpretation.

    asked by keaira
  172. Dressmaking

    A suit with rounded lapels and shawl collar would work best on a woman with which type of bodyline A)straight B)soft-straight C)curved D)sharp straight I think that the correct answer is B.Need help

    asked by Ayesha
  173. geometry

    william wishes to carpet his rectangular5 patio, whose dimensions are 21 feet by 18 feet. How much will it cost William to cover his patio if the carpet costs $4.95 per square yard?

    asked by rob
  174. MATH

    CAN 1/2 EVER BE GREATER THAN 1/4. IF NOT THEN WHY?

    asked by DANIEL
  175. Statistics

    Assume X~N(1.2, 1.3). Find P(0.26

    asked by Kim
  176. Chemistry-Conversions

    Can you please show me how to set up these conversions (how to do each of these conversions) Question- The pressure of gas is measured ay 550 mm Hg. Calculate the pressure in: a. Torr b. lb/in2 c. atm d. in Hg Can someone other than DrBOB answer this

    asked by KL
  177. math

    how do you change seventy-two ninths into a decimal

    asked by jazmine ryder
  178. health

    what smoking bans were put in place between 1964 and 1988

    asked by chad
  179. MATH

    Convert two point six eight to a mixed number?

    asked by cha
  180. Math Models

    Are the functions y-5=6(x-3) and y=6x-13 equal?

    asked by Dylan
  181. math

    y=1777x+27,153 number of y guns after 2000, that is x=0 coorespod to 2000, x=3, 2003 x=4. Predict number of gun deaths in 2004, 2009 and what year of gun deaths will be in 7606.

    asked by Randy
  182. Math

    How do you solve: log2(x-1)+log2(x-2)=1 I got up to x^2-3x=0 Is it no solution or does it become x(x-3)? Thanks!

    asked by Frank
  183. Math

    Linear equations using matrix method 2x-4y=0 3x-2y=3

    asked by Nikea
  184. chemistry

    Enthaly definition

    asked by Anonymous
  185. to bobpursley

    if i was going on the same web you gave me and i wanted to study there,but if its a different book, what do i type in?

    asked by Celest
  186. Art

    I need to let you check a few things later. I hope you'll be there, Writeacher. 1) I need your help for a project work on Emily !@#$%^&inson and the theme of anorexia. Could you suggest one of her poems? 2) I also need your help to find a short description

    asked by Frank
  187. Energy

    Hi guys can someone help on energy like give me a few bulletpoint about it please

    asked by Dhiraj Khullar
  188. biology

    The Cell membrane contains A) a double layer of fatty acid tails and phosphate heads B) cholesterol C) protein channels or pores D) a and b E A,B, and C

    asked by Bio
  189. math

    1/2 life of R 226 if A(t)=600e^-0.00043t i got stuck A(t)=A(t)=600e A(t)=600/2=300 300=A(t)=600e

    asked by Anonymous
  190. Math

    How do i solve 2x+y > -3? And how do i graph it. This is Linear inequalities.

    asked by David
  191. statistics

    Suppose that a given population of trees have an average height of 10.2 ft and a standard deviation of 1.3 ft. Find the proportion of the population with heights above 11.8 ft.

    asked by Erik
  192. 3 grade english ms sue

    sequence the sequence in a story is the order in which events happen. clue words such as first,next,then,and finally,are often used to signal the sequence in a story. dates and times can also be clues. sometimes,no clue words are used at all. directons

    asked by dw
  193. geometry

    how to write an equation in slope intercept form of the line through point P(8,20 with slope 4?

    asked by chris
  194. 3rd grade math help

    which one has two right angels square trapazoid rectangle or parrallegram??

    asked by daniel's mom
  195. geology

    I need help with this question... why air released from a tire or spray bottle can cool its surroundings?..thanks

    asked by rose
  196. math

    i am a 2 digit number between 0 and 30 my two digits add up to 1 what number am i

    asked by ted
  197. READING

    When is the best time to read review the discussion questions?

    asked by Anonymous
  198. math

    what does it mean when it says name for negative numbers greater than -3

    asked by Celest
  199. HIS-103

    Discuss the early complex society

    asked by Maryann
  200. math

    √x^5/√x^2 change to exponential notation, then simplify. assume it is positive.

    asked by stephanie
  201. math

    underoot 2x square +3x + underoot 2 by alpha into beta method.

    asked by rohit
  202. physics

    a kangaroo goes 150 feet at 5ft/second how long does this take him.

    asked by lisa
  203. physics

    giraffe walks at 5mph for 3hours.how far does he go?

    asked by lisa
  204. Spanish-Please check

    I had to change these into the past tense preterite are they correct tú presentarse would it be tú presentaste él sentirse would it be él se sintió

    asked by Sara
  205. DATA HELP!!

    Estimate the population size of a bird species if in 100 sightings along a migration path, 25 were ringed, and it is known that 500 of the birds had been ringed before the sightings?

    asked by Joshua
  206. chemistry

    how many grams of sodium phosphate were dissolved in 382 grams of water in a 6.0 m solution

    asked by ana
  207. physics

    roy is going for a jog! a)he leaves his hours and goes east at 4m/s for 5second,then b)he realizes he lost an eye contact so he begins crawling at 2m/s for 10second c)then he gets tired and stops for 3second d)then he goes back toward his house at 4m/s for

    asked by lisa
  208. physics

    A car rolling at 18m/s when the driver hits the breaks after 5 seconds the car has slowed down to 3m/s find the cars acceleration you most write down all given information and show all work WHat does this acceleration tell us about the motion of the car?

    asked by lisa
  209. Physics

    The total charge in an electrical circuit as a function of time is given by q=t/t^2+1 coulombs. Find the maximum charge q. Please provide your reasoning.

    asked by Liz
  210. Calculus grade 12

    Determine an equation for the plane that contains the points A(6, 2, 3), B(5, 1, -3), and C(5, 7, -2).

    asked by J
  211. physics

    A car speed up from 18m/s to 34 m/s in 2 seconds A) find the cars acceleration must write down all given information and show the work B) What does this acceleration tell us about the motion of the car?

    asked by lisa
  212. chemistry

    what will be the boiling point 54.5 grams of aluminum sulfate dissolved in 805 grams H2O

    asked by ana
  213. PHYSICS

    A car speeds up at 5m/s if the driver was already moving at 7m/s find his velocity after 3 seconds

    asked by lisa
  214. physics

    A ramp causes a ball to accelerate at - 4 m/s the ball is rolled up the ramp at 13 m/s find the ball velocity after rolling for 6 seconds you must show your work

    asked by lisa
  215. physics

    A ball is dropped from a tall building What is its acceleration What does the acceleration tell us about the velocity of the ball

    asked by lisa
  216. math

    train A and train B traveling same direction. train A passes station 9:20, train B passes station 9:32, when will train B catch train A

    asked by Randy
  217. Chemistry

    A tank contains Ar at 1.33 atm and Kr at 3.59 atm. We add enough Xe to give a total pressure of 6.3 atm. What is the partial pressure of the Xe?

    asked by Brandon
  218. Life Orientation

    Environmental problem

    asked by Cosnetia
  219. physics

    Eric can you show the work please

    asked by lisa
  220. math

    17. Estimate 21,174-12,951 by first rounding each number to the nearest thousand.

    asked by Ki
  221. algebra 2 please check

    Identify the line(s) of symmetry for the conic section x-(y-1)^2=2 I have this... (Y-1)^2=(x-2) Vertex (2,1) Symmetry y=1. Is this correct?

    asked by amber
  222. algebra 2 please check

    Write an equation for a parabola with vertex at (-4 , 3) and focus at ( -4, -2)? I have this.... (X+4)^2=20(y-3)

    asked by amber