Questions Asked on
October 21, 2010

  1. alegra.

    A boat cruises 36 miles against a 3 mph current and 36 miles back in the direction of the same current. The round trip takes 5 hours. What is the speed of the boat in the still water? use d=rt

    asked by Anonymous
  2. Science

    A block is released from rest on a 45 degree incline and then slides a distance "d". If time taken to slide a rough incline in "n" times as large as that to slide on a smooth incline. Find the coefficient of friction.

    asked by Manish Jack
  3. math

    things do not go quite as planned. you invested $8000, part of it in stock that paid 12% annual interest. however, the rest of the money suffered a 55 loss. if the total annual income from both investments was $620, how much was invested at each rate?

    asked by ximena
  4. math

    4c+2=18

    asked by emma
  5. algebra

    I need to write an equation for the following: Denise's cell phone plan is $29.95 per month plus $.10 per minute for each minute over 300 minutes of call time. Denise's cell phone bill is $99.95. For how many minutes was she billed?

    asked by Nic
  6. Math 12

    trig question 2sin^2x+sinx-6=0 how to solve for x when the restriction is x is greater than or equal to zero but less than 2pi

    asked by H
  7. calcus

    Sketch the regions enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. integrate with either respect to x or y, then find area S of the region given that

    asked by helpplease
  8. Calculus

    Sketch the regions enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. integrate with either respect to x or y, then find area S of the region given that

    asked by saywhat
  9. English

    Is this a simile or a metaphor The rain felt like small kisses on Rosemary's face,

    asked by Megan
  10. note to those with unanswered physics questions

    I have only been able to answer a few tonight. Preference is and will be given to questions in which evidence of work or thought is shown by the person posting the question.

    asked by drwls
  11. Calculus

    I don't understand how to set up the triple integral for #26. LINK: h t t p : / / g o o . g l / 5 k C L

    asked by Jerry
  12. Calculus

    I'm not sure how to do #22. LINK: h t t p : / / g o o . g l / P 0 S e

    asked by Jerry
  13. trig

    If sinθ>0 and tangθ

    asked by galatians
  14. College Organic Chemistry

    Suggest what would be the result if we heated a mixture of dichloromethane and naphthalene to 60 degrees Celcius, collected distillate until no further material distilled, and then cooled the flask back to room temperature.

    asked by Michelle
  15. College Organic Chemistry

    Why are fractionating towers in a refinery always tall?

    asked by Michelle
  16. physics

    just a couple more questions 1.) The power needed to accelerate a projectile from rest to is launch speed v in a time t is 43.0 W. How much power is needed to accelerate the same projectile from rest to launch speed of 2v in a time of 1/2t? 2.)A ball is

    asked by jo
  17. statistics

    poppulation with a mean=100,standard deviation population=10, and n=40. 1) find mean of all values in apoplution. 2) find standard deviation population 3) p(82 LESS THAN 82 less than 97 find mean)

    asked by Anonymous
  18. economics

    Two people enter a bus. Two adjacent cramped seats are free. Each person must decide whether to sit or stand. Sitting alone is more comfortable than sitting next to the other person, whihc is more comfortable than standing. a.) Suppose that each person

    asked by jo
  19. arithmetic

    Arithmetic 8.4-2

    asked by Anonymous
  20. Psychology ; the mind at work

    1. If you look at a photograph for a short time and then look away from it, your trace memory of the image will A. generally fade away in about a second. B. typically form a lasting memory. C. generally last about as long as the time you looked at the

    asked by mallory
  21. Stats

    A random sample of two hundred fifteen adults is selected from a certain population of registered voters. Assume the population is 20% democrats. Use a normal approximation to estimate (a) the probability the sample contains exactly 48 democrats, and (b)

    asked by Chris
  22. Maths

    Divide $4000 to Kimand Dan in the ratio 3:5 How much money will each have?

    asked by Me
  23. GR.12 BIOLOGY

    i have to do an experiment on alcohol fermentation using yeast and sugar. i decided that i will test the differnt types of sugars to see how fast or how slow the reaction will happen. The three types is sucrose which is brown sugar ,there is lactose and

    asked by confused and sad
  24. math

    please explain how 24 divided by 2.5 equals 9.6

    asked by bennie
  25. physics

    E^2/(e^(E/T)-1)Evaluate dn/dE at fixed T and enter it below.

    asked by bob
  26. College Chemistry

    If 10.6 mol of carbon monoxide is produced how many grams of carbon were used? How do you convert moles to grams? And what are the steps please for the answer.

    asked by Helen
  27. College Chemistry

    Which is the correct form of equilibrium expression of the following reaction. 2PbS(s)+3O2(g)reverse arrow 2PbOs + 2SO2g Why is the answer Kc= SO2 power 2/O2 power 3 Why in particular is this the arrangement for equilibrium expression? Thank you

    asked by Helen
  28. 5th grade math

    A marathon race has 522 runners divided into 6 groups. What is a reasonable number of runners in each group? A 112, because 522/6 is about 550/5=110 B 98, because 522/6 is about 500/5=100 C 87, because 522/6is about 540/6=90 D 82, because 522/6 is about

    asked by dave
  29. math

    April rode 12.3 miles on her bicycle on Monday. Which is the best estimate of the totl distance April will ride if she rides the same distance each day for 7days? A 84 B 91 C 105 D 120

    asked by Tommy
  30. PROBABILITY

    There are 3 lucky tickets among 10 lottery tickets. 3 tickets are drawn at random. What is a probability that one ticket selected randomly from those three is lucky?

    asked by JHONY
  31. Math

    Explain how the digit 1 can have a different values in 111

    asked by Ann
  32. Orientalism

    I do not understand what Orientalism has to do with Arab and Muslim Americans. Can someone please explain

    asked by Lisa
  33. college

    During the job analysis process, the primary purpoe of haveing workers review and modify data collected about their current positions is to

    asked by mary
  34. computer science(Algorithm)

    An m X n YOUNG TABLEAU is an m X n matrix such that the entries of each row are in sorted order from left to right and the entries of each column are in sorted order from top to bottom. Some of the entries of YOUNG TABLEAU maybe ¡Þ, which we treat as

    asked by Traxx
  35. physics

    A 90g arrow is shot straight up into the air with a spped of 23 m/s. It reaches a maximum height of 25.9898m. Find the initial kinetic energy. the acceleration of gravity is 9.8 m/s2. Answer in units of J. Find the potential energy at its highest position.

    asked by Deb
  36. Math

    Reduce each rational expression x^3-4xy^2/3x^3-2x^2y-8xy^2

    asked by Dave
  37. geography

    The connections between the countries of the world are likely to increase in the future. is this true or false

    asked by starr
  38. Math

    How do you do this Simultaneous Equation? 3x+4y=14 x+y=3 Please give me the step by step solution. Thanks a lot!

    asked by teg1901
  39. physics

    A 4600 kg helicopter accelerates upward at 2.26 m/s2. 2 The acceleration of gravity is 9.8 m/s . What lift force is exerted by the air on the propellers?

    asked by jess
  40. physics

    A 4600 kg helicopter accelerates upward at 2.26 m/s2. 2 The acceleration of gravity is 9.8 m/s . What lift force is exerted by the air on the propellers?

    asked by jess
  41. logistics

    For the logistic model f(x)=3x(1-x), if the starting fraction is 0.7, what will the next population fraction be?

    asked by Anonymous
  42. English

    Can you please check if it is everything right? Thank you. 1.I live in a small country village. My brother is a primary school student. 2.My parents are employees. 3.I’m a student at (of?) a technical high school with an emphasis on science. 4.I like

    asked by Franco
  43. calculus

    The population of less-developed countries in mid-2007 of 4086 billion expected to grow at 1.8% per year, If this growth rate continues until mid-2025, what will be the size of the population then?

    asked by Anonymous
  44. computer program

    where can i find a computer code for Simpson's 1/3 Rule using c++? please help. thank you.

    asked by Raimu
  45. physics

    How long would it take for a stone to fall 250m traveling at a speed of 10m/s squared?

    asked by Tammy
  46. trig

    how do you establish the identity of cos(3pi/2+0)=sin0

    asked by rebecca
  47. math

    how far from the base of a 10ft ladder be placed so that it reaches 8ft up the wall

    asked by latifah
  48. Chemistry

    In this case, the inflection point, and equivalence, occurs after 23.25mL of 0.40 M NaOH has been delivered. Moles of base at the equivalence point can be determined from the volume of base delivered to reach the equivalence point and the concentration of

    asked by John
  49. College Algebra

    I REALLY don't understand the reason/basis/use of logarithms. I have listened to my teacher, who never is clear on much of anything (it would help if he spoke better English), and a more advanced student, who couldn't explain them to me. The problem I am

    asked by Mary
  50. math

    the diagram shows a square xyrz of side 15m with an inscribed circle centre o.calculate the area of the square, circle and the shaded region

    asked by tia
  51. english

    My fiancé does not think he needs a credit card right now. We are already in enough debt. It has actually consumed our lives. Although most of the debt we have is his. I have my debts too, but they are much smaller. This is why he does not need a credit

    asked by Jenn
  52. english

    What is the term for the character in conflict with the main character?

    asked by danny
  53. calculus

    India's population has been catching up with China, with 1132 million in mid-2007 and growing at 1.6% per year, versus China then with 1318 million and growing at only 06%. If these rates continue, when will India have more people than China?

    asked by Anonymous
  54. english

    My fiancé does not think (he) needs a credit card right now. (We) are already in enough debt. It has actually consumed (our) lives. Although most of the debt (we) have is (his),I have (my) debts too, but (they) are much smaller. (This) is why (he) does

    asked by Jenn
  55. Physics

    A 1.95 kg block is held in equilibrium on an incline of angle q = 53.1o by a horizontal force, F, applied in the direction shown in the figure below. If the coefficient of static friction between block and incline is ms = 0.313, determine the minimum value

    asked by Matt
  56. english

    whats dialogue?

    asked by danny
  57. History

    Which statement is not a benefit of increased development? 1) improved access to health care 2) increased wealth 3) more even distribution of resources 4) reduced unemployment aren't all of these benefits?

    asked by Cassie
  58. math

    how to find the values of x?? x^2 - 3x - 7 = 0 tried quadratic formula and completing the square what else can i do??

    asked by john
  59. math

    solve the equation giving your answer in correct to 2 decimal places 5x square+4x+1=3(1-3x)

    asked by may
  60. chemistry

    Determine the theoretical yield of CO2 if 250.0 g CaCO3 is heated.

    asked by MaryBeth
  61. math

    using completing the square find the vertex and axis of symmetry for y = x^2 - 6x + 7 i cant complete the square for this one please help??

    asked by billy
  62. English

    Would someone edit my essay so far please. So far, I only have the introduction, the first paragraph and the conclusion. I am arguing for school uniform. "You know, if we had a uniform policy, it would make things better in this school." (Mitchell). Said

    asked by Kayla
  63. Physics

    The toy car in figure 6-12 runs off the edge of a table that is 1.225-m high. The car lands 0.400m from the base of the table a.How long did it take the car to fall? b.How fast was the car going on the table?

    asked by Samantha
  64. macroeconomics

    Not really lookign for the answers btu moer of the fomrula or how to find the answers if ok. thank you The table below shows the United States components of M1 and M2 in billions of dollars for the month of December in the years 1998 to 2007 as published

    asked by Danielle
  65. test

    grammar --verbs ) a helping verb is the verb that help the main verb make its statement(true or false)

    asked by nina
  66. calculus

    India's population has been catching up with China, with 1132 million in mid-2007 and growing at 1.6% per year, versus China then with 1318 million and growing at only 0.6%. If these rates continue, when will India have more people than China?

    asked by Anonymous
  67. earth

    Is the amount of solar energy intercepted by earth affected by the presence of clouds in the sky?

    asked by Ashley7235
  68. math

    find the vertex and axis of symmetry for y = x^2 - 6x + 7

    asked by billy
  69. calculus

    solve tis 5x^+4x+1+3(1-3x)

    asked by may
  70. literature

    what is an oral language piece?

    asked by karina
  71. Math - point on the graph

    Determine the coordinates of the point on the graph of f(x)=sqrt(2x+1) where the tangent line is perpendicular to the line 3x+y+4=0

    asked by Anonymous
  72. 10th grade

    What is the frequency of a photon with a wavelength of 2.50 102 nm? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 J · s.

    asked by mary
  73. chemistry

    What is the energy of a photon with a wavelength of 1.45 103 nm? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 J·s.)

    asked by mary
  74. chemistry

    What is the energy of a photon with a wavelength of 8.45 102 nm? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 J · s.)

    asked by mary
  75. chemistry

    What is the frequency of a photon with an energy of 7.40 10-18 J? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 J·s.)

    asked by mary
  76. chemistry

    What is the frequency of a photon with a wavelength of 5.60 10-7 m? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 J·s.)

    asked by mary
  77. chemistry

    What is the energy of a photon with a wavelength of 4.55 10-6 m? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 J·s.)

    asked by mary
  78. chemistry

    What is the wavelength of a photon with an energy of 6.35 10-19 J? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 J·s.)

    asked by mary
  79. hca/220

    Can someone help me get started with this? If you were to break down the terms, "cervical", "mastoid", and "ethmoid"; how might those word parts look? What would be the definitions for each word part? I am not understanding what break down means?

    asked by Nikol
  80. physics

    An athlete at the gym holds a 1.2 kg steel ball in his hand. His arm is 64 cm long and has a mass of 4.0 kg. What is the magnitude of the torque about his shoulder if he holds his arm in each of the following ways? 1. straight but 30 degrees below

    asked by kate
  81. physics

    An athlete at the gym holds a 1.2 kg steel ball in his hand. His arm is 64 cm long and has a mass of 4.0 kg. What is the magnitude of the torque about his shoulder if he holds his arm in each of the following ways? 1. straight but 30 degrees below

    asked by kate
  82. Organic Chemistry Lab

    For the "ISOLATION OF CHLOROPHYLL AND CAROTENOID PIGMENTS FROM SPINACH" Lab we have to think about how we can correct the following if they were to occur: a.) When a two-component mixture containing 1-ocetone and 1,4-dimethylbenzene gave only one spot with

    asked by Jeanne
  83. English

    Please check this paragraph.please. Wrongdoing and wickedness are as old as first man born in the world. These problems are so great that man cannot cope with it himself. Man can not escape way from wrongful act and the bad conscience without the help of

    asked by Sana
  84. Organic Chemistry Lab

    For the "ISOLATION OF CHLOROPHYLL AND CAROTENOID PIGMENTS FROM SPINACH" Lab we have to think about how we can correct the following if they were to occur: - A two component mixture containing dicarboxylic acid and a tricarboxylic acid gave only one spot

    asked by Jeanne
  85. Organic Chemistry Lab

    How do we correct the problem if during TLC development the solvent ran off the plate?

    asked by Jeanne
  86. physics

    Two children are balancing on a teeter-totter. One child has a mass of 30.0 kg and is sitting 1.3 meters from the pivot. The second child is sitting 0.8 meters from the pivot. What is the mass of the second child

    asked by kate
  87. chemistry

    Problem#8: Metabolism of alcohol (ethanol, C2H5OH) by the body takes place according to the reaction: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l) ΔHo = -1367 kJ Determine the number of “food calories” (Cal) supplied by the alcohol in a 12-oz (355-mL)

    asked by Sarah
  88. chemistry

    Problem#9: Consider the fuel octane (the main component of gasoline) and its combustion reaction 2C8H18(l) + 25O2(g) → 16CO2(g) + 18H2O(l) ΔHo = -10,942 kJ The “fuel value” of a fuel (unit kJ/g) is defined as the energy released when 1 g of the fuel

    asked by Sarah
  89. chemistry

    the half-life of radon-222 is 3.823 days. what was the original mass if 0.050g remains after 7.646 days?

    asked by Anonymous
  90. physics

    A Ferris wheel with radius 8.8 m rotates at a constant rate, completing one revolution every 34.6 s. Suppose the Ferris wheel begins to decelerate at the rate of 0.212 rad/s2 when a passenger is at the top of the wheel. Find the magnitude and direction of

    asked by Anonymous
  91. calculus

    If a store credit account charges 1.2% interest each month, what is the APR?

    asked by Anonymous
  92. US History

    Can I get some links to help me write this essay, please? 'Show how the ideas of the competing political positions on the creation of the new national government continued down to at least the time of the Civil War.' Thanks -MC

    asked by mysterychicken
  93. government

    Who can impose the draft and under what circumstances?

    asked by Jessica
  94. physics

    Two children are balancing on a teeter-totter. One child has a mass of 30.0 kg and is sitting 1.3 meters from the pivot. The second child is sitting 0.8 meters from the pivot. What is the mass of the second child

    asked by kate
  95. Chemistry

    10. Avogadro's number can be used to find the number of atoms in an element.- T 12. A photon is a quantum of light energy.- T 17. The atomic mass unit is determined by Oxygen-16.- F 18. The number of particles in a mole is a constant.- T 19. The number of

    asked by mysterychicken
  96. 5th grade math

    what is 5 names for 15 useing distibutive properity

    asked by cant tell
  97. physics

    A solid disc with radius R is is spinning. An object exerts a force F at the edge of the disc to slow down the disc. The disc slows down to rest in 2.0 seconds. How long would the disc take to stop if: the mass of the disc doubled in s the radius of the

    asked by ashley
  98. physics

    What angle does the tangent to the curve y(x)=sin^2(x/9)+16sin(x/9) at x=9\pi make with the x-axis?

    asked by bob
  99. chemistry

    Crushed ice, at -25 digrees was heated using a bunsen burner. The temperature was recorded over a period of 16 minutes. Between 5 and 9 minutes there is no increase in temperature. What change of state is taking place?

    asked by Anonymous
  100. PHYSICS

    A model rocket is constructed with a motor that can provide a total impulse of 25.5 N · s. The mass of the rocket is 0.213 kg. What is the speed that this rocket achieves when launched from rest? Neglect the effects of gravity and air resistance.

    asked by ZAC
  101. PHYSICS

    A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of +18.0 m/s, while the exiting water stream has a velocity of -18.0 m/s. The mass of water per second that strikes the

    asked by ZAC
  102. PHYSICS

    A student (m = 63 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.0170 s. The average force exerted on him by the ground is +16500. N, where the upward direction is taken to be the

    asked by ZAC
  103. algebra

    Find the x and y intercepts: 3x - 2y = -12 i know the anwser is (2 , -3) but how do i show the work that i found that anwser?

    asked by sami
  104. chemistry

    the heat of this reaction,Na + 1/2 Cl 2 NaCl, is 98.3 kcal/mole what is the heat given off two moles of NaCl are formed ?

    asked by u wish
  105. Algebra

    find the x and y intercepts: 3x - 2y = -12 i know for the x intercept, put y=0 in the equation,s olve for x. For the y intercept, do the reverse. But i still don't understand how to solve it. Its just majorly fustrating me. And i can't go to school and ask

    asked by sami
  106. Chemistry

    24. A quantum is a finite amount of energy gained or lost by an atom.- F? 25. An atom is in an excited state when it has its lowest energy.- F 26. The Bohr model of the atom shows electrons in areas called energy levels.- F? 27. The principal quantum

    asked by mysterychicken
  107. physics

    The velocity of a particle constrained to move along the x-axis as a function of time t is given by: v(t)=-(13/t_0) sin(t/t_0). a)If the particle is at x=4 m when t = 0, what is its position at t = 5t_0. You will not need the value of t_0 to solve any part

    asked by bob
  108. physics

    In the vertical jump, an Kobe Bryant starts from a crouch and jumps upward to reach as high as possible. Even the best athletes spend little more than 1.00 s in the air (their "hang time"). Treat Kobe as a particle and let ymax be his maximum height above

    asked by bob
  109. Chemistry

    Last ones: 32. There could be eight electrons in the first energy level.- F? 33. The first energy level can have only one sublevel.- F? 34. When electrons move from a high energy excited state to a low energy ground state, energy is absorbed by the atom.-

    asked by mysterychicken
  110. math

    If f(x)=(3x+6)–1, find f'(x).

    asked by sue
  111. statistics

    The Computer Anxiety Rating Scale (CARS) measures an individuals level of computer anxiety, on a scale from 20 (no anxiety) to 100 (highest level of anxiety). Researchers at Miami University administered CARS to 172 business students. One of the objectives

    asked by GG
  112. math

    If f(x)=(3x+6)^–1, find f'(x).

    asked by sue
  113. probability!

    we were given a chart - "researchers developed the following tabel of joint probabilities of number of drinks per day and development of ulcers" and the question is a. what proportion of people have ulcers - how am i supposed to know htis b. what is the

    asked by Lauren
  114. English

    I'm having a hard time writing a thesis statement on three points that surrounding characters' traits in Arthur Miller's, The Crucible. Can anyone help me with three points. I have read it in class and reviewed it, but I still don't comprehend. I would

    asked by Sam
  115. Advice

    Why do your favorite teachers always leave?

    asked by amanda
  116. calculas

    If a ball is thrown vertically upward from the roof of 48 foot building with a velocity of 80 ft/sec, its height after t seconds is s(t)=48+80t–16t2. What is the maximum height the ball reaches? (my answer is 148). What is the velocity of the ball when

    asked by sandy
  117. ap chemistry

    Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I got .548733V Is this right?

    asked by brian
  118. calculas

    If f(t) = square root of 7/t^5. Find f'(x) and f'(2)

    asked by sandy
  119. calculus

    If f(x)=(x^2+3x+2)^3, find f'(x).

    asked by sandy
  120. US History

    Linksss pleasee! 'A great deal of America's success can be traced to the impact of inventions. Show how several of these developments helped the country to grow.' Thaaanks! -MC

    asked by mysterychicken
  121. algebra

    I don;t know how to solve the following equation. 9+6x=-6x+105 I have -6x +6x -105 -105 -96=12x 12 12 x=8

    asked by Josh
  122. algebra

    I don;t know how to solve the following equation. 9+6x=-6x+105 I have -6x +6x -105 -105 -96=12x 12 12 x=8

    asked by Josh
  123. AP Chem

    Calculate the average kenetic energy of the CH4 molecules in a sample of CH4 gas at 273K and at 546K. So, should I have two answers or one? Super confused

    asked by Amber
  124. Business-Operations Management

    Can someone please help me understand what the best way would be to explain the possible benefits of using a network strategy to streamline operational procedures within a company which is working on its operational-management processes?

    asked by MH
  125. 8th grade

    How do you divide three fourths of a square into 4 parts

    asked by Anonymous
  126. Statistics

    As standard deviation increases, samples size _____________ to achieve a specified level of confidence. A. Increases B. Decreases C. Remains the same

    asked by Daniel
  127. algebra

    if 60% of m equals n, 60% of 6m is equal to what terms of n?

    asked by Anonymous
  128. math

    How many solutions satisfy the equation |3x-2|=|x|?

    asked by John
  129. Algebra

    The width of a rectangle is twice the lenght. If the area of the rectangle is 98, what is the width of the rectangle?

    asked by Sarah
  130. chemistry

    what will be the mass of angydrous Alum left over if one starts with 100.00 g of hydrated Alum?

    asked by Jay
  131. 8th grade Science

    What does Air Mass Consist of?

    asked by Ashley
  132. chemistry

    How many moles are in a sample of cobalt containing 5.0x10^23 atoms?

    asked by Nathan
  133. math

    All the face cards (i.e., kings, queens, and jacks) are removed from a standard deck, and one card is drawn from the remaining cards. Let A be the event that a red card is drawn, and let B be the event that a spade is drawn. What is

    asked by jai
  134. Statistic

    11.5 Consider an experiment with four groups with eighth values in each. For the following ANOVA summary table, fill in all the missing results. Source Degree of freedom Sum of Square Mean Square(Variance) F

    asked by GG
  135. geometry

    What is 15cm x 10cm as using a picture frame?

    asked by Kyree
  136. ap chem

    how do you find mole fraction?

    asked by Amber
  137. world history

    compare Byzantine society to rome

    asked by gianna
  138. geography

    What does this mean? Thank you Colonialism is a process whereby sovereignty over the colony is claimed by the metropole and the social structure, government, and economics of the colony are changed, by colonists - people from the metropole.

    asked by alainia
  139. Math

    If f(x)=x^2-6x+14 and g(x)=-x^2-20x-k, determine the value of k so that there is exactly one point of intersection between the two parabolas.

    asked by Emily
  140. Math

    Each traveler gives the cab driver a tip using the same nine coins. The total tip is $8.41. How many dimes did the driver get?

    asked by Tosha
  141. Physics

    What is the instantaneous speed in m/s at the 10 s mark for a car that accelerates at 3 m/s(squared) from a position of rest?

    asked by Macario
  142. 4th grade

    what is correct order smallest to largest 0.6,0.06,0.43,0.9

    asked by carol
  143. Chemistry/English

    In chemistry we are writing a paper about an inventor.. We have to have some back ground info.. what they invited. how there time affected there inventions and if there inventions where a great success and so on so forth. What would be a good way to set

    asked by ammmyyy
  144. Chemistry

    what is the concentration of Cl- after adding 250 mL of 0.10 M AlCl3 to 250 mL of 0.30 M Ca(NO3)2

    asked by Madison
  145. Chemistry

    A 112 mL solution of 0.351 M HCl is added to 52.0 mL of 0.161 M HCl. What is the new concentration of HCl?

    asked by Madison
  146. Humanities

    What is the relationship between spirituality and Gothic architecture? In what ways does Gothic architecture display this time period as an Age of Faith? What other features of this culture do the other arts reveal? Refer to specific examples.

    asked by Anonymous
  147. Math - Basic Math

    Each traveler gives the cab driver a tip using the same nine coins. The total tip is $8.41. How many dimes did the driver get?

    asked by Tosha
  148. science

    what type of liquid will cause a penny nail paperclip and a sewing needle to rust the fastest need help

    asked by hannia
  149. 5th grade

    comaring and ordering fraction books never written

    asked by jarius
  150. social studies

    How did the Chinese Exclusion Act nd the Gentleman's Agreement limit the Asian immigration?

    asked by Nikki
  151. Science

    Where are memories stored in your brain?

    asked by Christina
  152. Middle School Math - NEED HELP!

    Each traveler gives the cab driver a tip using the same nine coins. The total tip is $8.41 (8 dollars and 41 cents) How many dimes did the cab driver get?

    asked by Tosha
  153. math

    The ratio of the sales price of a jacket to the original price is 3:4. the original price is $64. what is the sale price? how do i figure this out

    asked by courtney
  154. Business Calculus

    An ice cube that is 3 cm on each side is melting at a rate of 2 cm cubed per minute. how fast is the length of the side decreasing?

    asked by Joel
  155. Science

    Which one is different in the catergories? Plus, could you calssify the rest in the group, without the circled one? A. wheelbarrow B. wagon C. car -- --- D. shopping cart -- -------- ---- I think that the answer is D. shopping cart whing is uderlined or C.

    asked by Anonymous
  156. math

    17-7(x-3)+x=86

    asked by meya
  157. chemistry

    how many atoms are in 26 moles of Ag

    asked by Josh
  158. social studies

    i need to draw a kid verson of a separatist

    asked by alexis
  159. chemistry

    How much of a 100mM solution do I need to add to a 2.5mM solution to make a solution with a final concentration of 10nM? Is there a formula for this? Please HELP!

    asked by lisa
  160. English

    Can a rough draft for a letter of application or cover letter be written front and back? Also how many lines do you skip for each topic. Thanks!

    asked by Jennifer
  161. Literature/The Crucible

    Can you help me with these two questions thanks. Acts 1 and 2 Cause and effect relationships The Crucible Directions: Fill in the blanks to show what happened (effect) as a result of specific action (cause) 1. Because Sarah Good had mumbled in Mary

    asked by Karen
  162. Business-College

    Can someone please help me understand what the best way would be to explain the possible benefits of using a network strategy to streamline operational procedures within a company which is working on its operational-management processes?

    asked by MH
  163. Chemistry

    Suppose you are standing 201 m from a radio transmitter. What is your distance from the transmitter in terms of the number of wavelengths for the following conditions? (a) The station is broadcasting at 1150 kHz (on the AM radio band)? (1 kHz = 1

    asked by Noelle
  164. physics

    A planet is 400 times more massive than the earth, and its radius is 10 times that of the earth. The weight of an object on the surface of the planet is?

    asked by Becky
  165. 6th grade

    can you unscramble this word cegghimnuw

    asked by jaquan
  166. math

    lydia wrote 4_1/2 pages of her science report in one hour. what was her writing rate in pages per minute? (2-4 rates ratios and proportions)

    asked by Max
  167. math

    the ratio of hydrogen atom to oxygen atoms in water is 2:1 if an amount of water contains 341 trillion atoms of oxygen how many hydrogen atoms are there? how would i do this?

    asked by courtney
  168. math

    can someone show me how to set up this equation? the following figure which consist of seven equal squares has an area of 63 square units. find its perimeter. I have been racken my brain trying to set this equation up.

    asked by Kev H
  169. chemistry

    i am doing a graph for my chemistry class, and i need help with excel. How do i plot 3.50X10^-3 into excel? it comes out as a negative number! help!

    asked by jean
  170. Math

    Determine the domain and range of f(x)=-sqrt(x+3) and the equation of the inverse.

    asked by Emily
  171. chemisty

    what will be the mass of angydrous Alum left over if one starts with 100.00 g of hydrated Alum? please can you explain what fraction do I need to use. Based on the given information I can find the %theoretical of water in angydrous Alum. But I still don't

    asked by Jay
  172. 3rd grade

    how can you model 624 without using hundreds

    asked by Anonymous
  173. 8th grade

    78=3c+12-c+4 solve

    asked by Anonymous
  174. math

    if you used 2 hundreds, 18 tens, and 4 ones to model a number. what number did you model?

    asked by madison
  175. us history

    what foods where in the new world before the columbian exchange?

    asked by Marisa
  176. calculus

    Let f(x)=4cos^5x. Find f'(x)

    asked by sandy
  177. calculus

    Evaluate the limit lim sin4x/tan9x x-> 0

    asked by sandy
  178. 3 Grade

    Byron threw two rings. the difference between the numbers is 12. the lesser number is 15. what is the greater number.

    asked by Atira
  179. math

    a model airplane flies 18 feet in 2 seconds what is the airplanes speed in miles per hour round you answer to the nearest hundredth how would i do this

    asked by courtney
  180. Chemistry

    Calculate the [H3O+] of each of the following H2SO4 solutions. For a 0.50 M soln How do I reach the answer? Do I have to use a ice table?

    asked by Anonymous
  181. 9th grade

    a hopper jumps straight up to a height of 0.45m. with what velocity will it return to the table?

    asked by Anonymous
  182. physics

    If you are driving 100 along a straight road and you look to the side for 1.9 , how far do you travel during this inattentive period?

    asked by Emily
  183. mkt 230

    As a marketing consultant, you are frequently asked by clients to develop recommendations for marketing communication strategies. The traditional elements used include advertising, sales promotion, public relations, and personal selling. Which of these do

    asked by Mary
  184. Enaglish

    Please check this paraph We know that every man commits sins. There is no way that we can Undo our mistakes. It is only possible through the salvation . God likes those people who seeks His mighty forgivenss after committing sins, He don’t like those who

    asked by Anonymous
  185. calculus

    use the definition of the deriviative to find the deriviative when: a) f(x)= the square root of x b) y=mx + b c) y= x^2 + x

    asked by Anonymous
  186. Physics

    If you are driving 100km/h along a straight road and you look to the side for 1.9s , how far do you travel during this inattentive period?

    asked by Emily
  187. Algebra

    in a dartboard ther r 2 circles,one large circle n a smaller shaded one inside the larger one. the large circle has a radius of 2 feet n the smaller circle has a diameter of 2 feet. if a dart os thrown at the board wats the probibility that it will land in

    asked by Anonymous
  188. AP CHEM

    Complete and balance the reaction Al(s) + Pb2+(aq) ! using the smallest possible integers. I got: 2Al(s) + 3Pb2 ==> Al2Pb3 Calculate the standard free energy. Faraday’s constant is 96485 J V · mol Answer in units of kJ/mol. I know the formula is -nFE

    asked by brian
  189. Science

    Which one is different in the catergories? Plus, could you calssify the rest in the group, without the circled one? A. wheelbarrow B. wagon C. car -- --- D. shopping cart -- -------- ---- I think that the answer is D. shopping cart whing is uderlined or C.

    asked by Jacytiopa
  190. college Chemistry

    Hydrobromic acid is a strong acid. If you have 1 L of a 7.5 M solution of Hydrbromic acid? A) What is the concentration of H_3O^+? B) What is the PH of this solution? C) If you dilute 1 liter of 7.5M in HBR solution to a volume of 2 L what is the new

    asked by Greg
  191. Math

    There are 80 players at the baseball tryout. 5 players are not trying out b/c of injuries, 15 are trying out for pitcher or catcher and 6 are trying out for a feilding position that excludes pitcher and catcher, whats the probliblity that a player is tryin

    asked by Sam
  192. US history

    For what reasons was the Tweed Ring so notoriours?

    asked by Nikki
  193. Physics

    What is the equation for average velocity given x1 (initial distance), x2 (final distance), t1 (initial time) and t2 (final time)?

    asked by Anna
  194. physics

    Hi: I need help with the following physics problem. Can you explain it to me? Thank you, The fastest measured pitched baseball left the pitcher's hand at a speed of 50.0 . If the pitcher was in contact with the ball over a distance of 1.50 and produced

    asked by Dave
  195. 10th grade

    How do find the speed of a marble after falling from rest a distance of 1.2 m?

    asked by luke
  196. algebra

    I'm working with absolute values, and for some reason I'm just really stumped by this problem. 7=|3x+9|+7 I don't see how I can get any number that will make the equation equal 7?

    asked by michelle
  197. algebra

    what does it mean when 2 ratios form a proportion??

    asked by Anonymous
  198. 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*6 miles in 5 seconds. About how far would this spacecraft travel in 50 seconds?

    asked by Bird
  199. algebra

    i need help i don't get this whats the ratio of the sales price of a jacket to the original price is 3:4. the original price is $64. whats the sales price??

    asked by Anonymous
  200. Eurpoean History

    How did imperial forces entice resistant countries into submission? What role did the promise of democracy play? In your opinion, was this promise kept? Why or why not?

    asked by Smith
  201. English

    Thank you very much. Could you please check these sentences,too? 1.My hobbies are doing athletics, playing the drums and going to the scouts (??) 2.I like going to pizza restaurants with my friends.I live in a quiet big flat. In my family there are four

    asked by Franco
  202. ethics of law

    I have to write an essay and I am stuck on one part that asks "describe the nature of ethics and their role in policing?" Help is greatly appreciated.

    asked by Robin
  203. Math

    How would you complete 7000 hundred thousandths=? hundredths

    asked by Lilly
  204. math

    t + 1/4 = 5/9 t =???

    asked by Aly
  205. Calculus

    If f(x) = 2 √x, use the definition of derivative to find f′( x )

    asked by Trevor
  206. math

    a vehicle uses 1 tablespoon of gasoline to drive 125 yard how many miles can the vehicle travel per gallon? a model airplane flies 18 feet in 2 seconds what is the planes speed per miles an hour? how do i do these

    asked by courtney
  207. math correct or not corrext

    a - 1/8 = 5/8 a= 6/8?

    asked by Aly
  208. math

    c - 9/10 = 1/3 c= 1 1/15?

    asked by Aly
  209. 6th grade

    what hatchet

    asked by Anonymous
  210. economics

    what does diversification do to risk?

    asked by marge
  211. statistics 221

    A shipment of 35 computers contains three that are defective. How many ways can a small business buy four of these computers and receive no defective ones. a. 128 b. 35960 c. 52360 d. 6545

    asked by Anonymous
  212. math

    what is the orginal cost of 565.00 with a 5.5% discount

    asked by kayla
  213. Ap Chemistry

    Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I kept getting .55V but it is wrong. Can someone please help me?

    asked by brian
  214. social studies

    This is regarding compare and contrast. The choices are 3 areas to build your home, Montains, Valley far from a river, and Sandy area near steep rocks. Compare and contrast 2 choices. then tell where you will build your house and why.

    asked by manaswi
  215. 7th grade, math

    Can someone explain the steps to solve this problem? If a number ends in zeros, the zeros are called terminal zeros. For example, 520000 has four terminal zeros, but 502,000 has just three terminal zeros. Let N equal the product of all natural numbers from

    asked by Sharron
  216. statistics

    For the data in the following table, select a type of display and describe the steps that you would take in developing it to show the relationship between age and deaths/1000 people from car accidents:

    asked by Anonymous
  217. Physics

    A sports car accelerates from rest to 89 km/h in 6.1s . What is its average acceleration in

    asked by Emily
  218. Physics

    A sports car accelerates from rest to 89 km/h in 6.1s . What is its average acceleration in

    asked by Emily
  219. physics

    From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. The bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.42 m, and x = 7.2 m.)Determine

    asked by Anonymous
  220. Writing

    Does my thesis statement sound ok? Deforestation should no longer go on, because endangered species are close to extinction, less oxygen is being produced, and global warming is turning into a bigger issue because of it.

    asked by Elizabeth
  221. math

    5 1/6 - 2 1/2 = 3 1/12

    asked by Aly
  222. 8th grade pre algerbra

    problem solving investigation: draw a diagram problem: kelly is using 3-inch square tiles to cover a 4-foot by 2-foot area the tiles are 0.5 inches tall if the tiles were stacked on top of each other to create a tower, how many inches tall would the tower

    asked by mojo
  223. US History

    What are some of the barriers immigrants have faced in their struggle for equality? Thanks -MC

    asked by mysterychicken
  224. Inequalities

    I'm looking a problem in my textbook and I don't understand how it goes from one step to another. It starts out as: (120 * 2^5)/(180 * n^4) < 1/10^4 That turns into: n^4 > (64 * 10^4)/3 Can you please explain the steps between those two? Thanks

    asked by Alex
  225. chemistry

    Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V Can someone please help me? I have the equation: 2Cr +3Pb(+2) --> 2Cr(+3) + 3Pb

    asked by Fred
  226. math

    find the unit rate. 400 cm to 1m

    asked by Toshi
  227. Physical world science

    A study measuring the max height reached for various launch velocities and obtained the following data: V at m/s max height 0 0 10 28 20 35 30 42 40 49 50 56 60 63 70 70 1. plot the data on a graph 2. draw a best-fit line or curve through the data points

    asked by Logan
  228. Spanish

    There's no shoe verbs for Vestirse (reflexive) in the preterite right?

    asked by Amy
  229. US History

    1. In the war of 1812 the most effective American Action against British shipping was by: A. US navy frigates B. navies of individual states C. pirates in the Caribbean D. US Navy submarines E. privateering merchantmen 2. The British changed their strategy

    asked by Courtney
  230. math

    p - 3 2/3 = 1 1/3 p= 4 3/3 then do I simifly that ?

    asked by Aly
  231. grammar

    Please bring the pens to Julio and

    asked by Anonymous
  232. math

    p - 3 2/3 = 1 1/3 p= 4 3/3 then do I simifly that ?

    asked by Aly
  233. MATH

    FIND THE MEASURE OF A COMPLEMENT OF AN ANGLE THAT MEASURE 65DEGREES

    asked by Raynique
  234. math

    find the unit rate. 5hr s of 6

    asked by Toshi
  235. math

    The length of Laurie's rectangular swimming pool is triple its width. The pool cover an area of 192 m2. If Laurie swims across the diagonal and back, how far does she travel?

    asked by Anonymous
  236. math

    A department contains 13 men and 20 women. How many ways are there to form a committee with 6 members if it must have strictly more women than men?

    asked by Anonymous
  237. physics

    A daredevil jumps a canyon 10.6 m wide. To do so, he drives a car up a 19° incline. (The daredevil lands on the other side of the canyon at the same elevation as takeoff.) What minimum speed must he achieve to clear the canyon?

    asked by Jonathan
  238. physics

    A daredevil jumps a canyon 10.6 m wide. To do so, he drives a car up a 19° incline. (The daredevil lands on the other side of the canyon at the same elevation as takeoff.) What minimum speed must he achieve to clear the canyon?

    asked by Jonathan
  239. math

    How many 5-digit bank security Personal Identification Numbers (PIN) codes can be formed using the characters in the set {0, 2, 4, 6, 8, a, b, c, d, y } with the restrictions below. Note: For purposes of this problem, the PIN number can be "padded" with

    asked by Anonymous
  240. math

    There are a total of 152 foreign language students in a high school where they offer only Spanish, French, and German. You are given the following details for this semester: 58 take Spanish. 71 take French. 66 take German. 9 take Spanish and French but not

    asked by Anonymous
  241. science

    A 30kg girl and a 25 kg boy face each other on friction free roller blades the pushes the boy who moves away at a speed of 1.0m/s the girl's speed is m/s?

    asked by Reno
  242. Math

    lim as b approaches infinity of integral of xe^-x^2 from 0 to b aka lim b->inf int(0,b) x*e^(-x^2) dx

    asked by Alex
  243. algebra

    n to the 6th is greater than or equal to 38

    asked by bubbles
  244. math correct or not

    y - 4 7/8 = 3/4 y = 5 5/8

    asked by Aly
  245. physics

    A model rocket is constructed with a motor that can provide a total impulse of 25.5 N · s. The mass of the rocket is 0.213 kg. What is the speed that this rocket achieves when launched from rest? Neglect the effects of gravity and air resistance.

    asked by josh
  246. Physics

    I don't know the answer which is why I'm using this web site so I don't know why it's asking for the answer :(

    asked by Anonymous
  247. US History

    Last one! 'Describe the major territorial advances made by the US in the 19th Century.' Thanks -MC

    asked by mysterychicken
  248. algebra

    a passenger train's speed is 60mi/h, and a freight train's speed is 40mi/h .The passenger train travels the same distance in 1.5 h less time than the freight train. how long does each train take to make the trip?

    asked by Anonymous
  249. plz correct this line ..eng

    but his purity is not last long as he start growing

    asked by Sana
  250. social studies

    what is the definition of values

    asked by caleb
  251. math

    f + 4 5/12 = 5 3/8 does 5 = 1 19/24? I don't think so and I'm confused

    asked by Aly
  252. English-Please Edit

    Recently my class and I watched the movie "The Martian Child", and the teacher told us to write about the theme: Changed perspectives lead to Understanding. ~ The teacher said that this could be our delayed thesis if we wished. This is how it needs to go:

    asked by Sara
  253. Calculus

    a populatioin of bacteria has an initial size of 500. the population doubles every 7 hours. a) how many bacteria will there be after 10 hours b) when will there be 3000 bacter? I keep getting answers that just don't make sense. Can someone do these out for

    asked by Anonymous
  254. biology

    in biology we are studying taxonomy. we are classifying our organisms by broadest to most specific: kingdom phylum class order family genus species how would i do this for a Siberian tiger?

    asked by Ashley
  255. algebra

    megan paid 1.50 each for programs to the game. she sold all but 20 of her programs for 4.00 each. even factoring in the money she lost for not selling all the programs, she still made a profit of 45.00. how many programs did megan buy in the first place?

    asked by grant
  256. chemistry

    Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I don't know what to do

    asked by Someone PLEASE HELP!
  257. algebra help

    Two motorcyclists start at the same point and travel in opposite directions. One travel 3 mph faster than the other. In two hours they are 206 miles apart. How fast is each traveling? The speed of the slower motorcyclist is ___ mph.

    asked by kate
  258. Physics

    A uniform solid cylinder of mass M = 2 kg is rolling without slipping along a horizontal surface. The velocity of its center of mass is 27.6 m/s. Calculate its energy. I got 761.76 Joules but I think it's wrong.

    asked by Gina
  259. Physics - Height of ball launch

    A solid ball of mass m and radius r rolls without slipping through a loop of radius R, as shown in the figure. From what height h should the ball be launched in order to make it through the loop without falling off the track? (Use any variable or symbol

    asked by Gina
  260. english

    I have to write a eulogy for Juliet. And every sentence have 10 sylables can you check my work please. Juliet was good,young,and full of love she was born a short 13 years ago. she was always polite,never talked back, she was in love too much with Romeo.

    asked by marie
  261. math

    there are 4 girls in Mrs. Changs class than Mr. Blackwell's. 5 girls moved from Mrs. Changs to Mr. Blackwells. Now there are twice as many girls in Mr. Blackwells class as there are in Mrs. Changs, How many girls were in Mr. Blackwells class to begin with?

    asked by lomas
  262. statistics

    With a normal distribution and a mu=40 and sd =4, how can I figure out what percent of the area lies to the right of a reported score of x=45?

    asked by brenda
  263. social economics

    Does international law work? In what situations is it most effective? In what situations is it least effective?

    asked by janet
  264. Math

    The highest point in NewOrleans, Louisiana is 15 feet above sea level.The Lowest Pont is 4 feet below sea level. Howmuch higher is the highest point than the lowest point ? How would you explanin this? Whats the Answer

    asked by Sumaiya
  265. management

    I need help on where to find information on the effectiveness of wal-marts control mechanisms. The mechanisms are: price, communication, power and trust.

    asked by patiance
  266. physics

    A 435 N box is sliding down a 40 degree incline. If the acceleration of the box is 0.250 m/s^2, what is the force of friction on the box?

    asked by Mercedes
  267. AP Physics

    A marble is dropped from a height of 10 m. A 2nd marble is rolled off a 10 m table at 5 m/s. A 3rd marble is fired at 5 m/s at an angle of 45 degrees off the table. Which one is going 15 m/s when it hits the ground?

    asked by Betsy
  268. History

    In their reporting of elections, the media tend to place cendidates and issues in the context of

    asked by Ann
  269. To Writeacher

    Writeacher, I did a composition on this movie, and I would appreciate it if u could check it over, thanks a lot.

    asked by Sara
  270. math

    A carpenter used 3 3/16 pounds of nails for a job. After the job was over, the remaining ails weighed 1 1/16 pounds. How many pounds of nails di the carpenter have at the beginning of the job? PLEASE HELP!

    asked by Aly
  271. math correct or no

    2 1/16 = d + 5 7/16 d= 3 1/4?

    asked by Aly
  272. chemistry

    Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I don't know what to do

    asked by Someone PLEASE HELP!
  273. Math

    how do you show your work for long division this is the question 61.2 % -7.2

    asked by Rosy
  274. physics

    A large boulder is ejected vertically upward from a volcano with an initial speed of 41.0 . Air resistance may be ignored.

    asked by Dave
  275. Physics Please Help

    A spider sits on its web, undergoing simple harmonic motion with amplitude A.What fraction of each cycle does the spider spend at positions with x>0.75A? Hint: Use the analog of uniform circular motion.

    asked by Nikki
  276. Physics Please Help

    A spider sits on its web, undergoing simple harmonic motion with amplitude A.What fraction of each cycle does the spider spend at positions with x>0.75A? Hint: Use the analog of uniform circular motion.

    asked by Nikki
  277. math

    one number is three more than a second number. Three times the first is 7 less than 2 times the second. Find the numbers. The value of the second number is ___

    asked by Anonymous
  278. Physics

    A 100-N force has a horizontal component of 80 N and a vertical component of 60 N. The force is applied to a box which rests on a level frictionless floor. The cart starts from rest, and moves 2.0 m horizontally along the floor. What is the cart's final

    asked by Chris
  279. Chemistry

    1. When a potassium atom reacts with a bromine atom, the bromine atom will a) lose 1 electron and form a positive ion b) lose 2 electrons and form a positive ion c) gain 1 electron and form a negative ion d) gain 2 electrons and form a negative ion I know

    asked by Lisa
  280. Chemistry

    Which of the following elements has an ionic radius greater than its atomic radius a) Ca c) Fe b) Li d) N

    asked by Jessica
  281. math

    how do you write an equation of the line containing point (4,-3) and perpendicular to the line y=3x-5? show steps please

    asked by Louise
  282. Chemistry

    4. Which has a larger radius, S or S-2? Explain. thanks for the help !

    asked by Nhi
  283. algebra

    8x-6 over 5x squared over x squared +18x+46 over 6x

    asked by Anonymous
  284. Chemistry 1

    What is the minimum amount of a 6.0 M solution of sulfuric acid necessary to produce 25 grams of hydrogen gas if the molar ratio in the chemical reaction is a 1:1

    asked by Jordan
  285. Physics

    A person pushes horizontally with a force of 270 N on a 55 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.25. What is the magnitude of the frictional force? What is the magnitude of the crate's acceleration?

    asked by Sam
  286. legal aspects of business

    research an American firm/corporation that has been affected or is in the process of responding to recent shifts in international policies and regulations as they relate to foreign investment. Summarize your findings in 5-7 paragraphs. Write an additional

    asked by lisette
  287. math

    x - 3/4 + 1/6 = 1 5/12

    asked by Aly
  288. math word problem

    A restaurant chef needs 8 1/2 pound of salmon. To get a good price, he buys more than he needs. He ends up with 4 7/8 pounds too much. How much salmon did he buy?

    asked by Aly
  289. physics

    a satelitee breaks in half while in circular orbit about the earth

    asked by michelle
  290. language art

    ocr reading

    asked by kenneth
  291. physics

    You inflate your car tires to a gauge pressure of 2.43 atmospheres at a temperature of 24 degrees C. After driving a couple of miles the temperature of the tire increases by 46 degrees C. What is the new gauge pressure to the nearest hundredth of an

    asked by sandhu
  292. Science

    Give the condensed structural formula for 1-butanol

    asked by Ashley
  293. math

    what is 1/3 + 1/3 = ?

    asked by Nathaniel
  294. Math

    Solve for: cos (2 theta) = 2 - 2 sin^2 (theta)

    asked by Meagan
  295. Chemistry

    Which compound forms a colored aqueous solution? a) CaCl2 c) NaOH b) CrCl3 d) KBr i think its Cr because its an transition metal. but im not sure.

    asked by John
  296. Physics

    Along the remote Racetrack Playa in Death valley, California, stones sometimes gouge out prominent trails in the desert floor, as if they had been migrating. For years curiosity mounted about why the stones moved. One explanation was that strong winds

    asked by Sam
  297. Math

    Jarrels goal is to be half finished with the book he is reading by friday. By wednesday he has read 1/3 of the book.How much more does he need to read to meet his goal?

    asked by Aly
  298. calculus

    Explain and show how you would estimate 0.5 x 4.62 . Then justify why this is a good choice for arriving at the correct answer.

    asked by Keziah
  299. calculus word problem

    a conveyor belt pours gravel into a pile at a rate of 20 lbs per minue. the pile is shaped like an upside-down cone. the proportions of the cone are such that when the pile is complete, the diameter of the base is 6 ft and the height is 10 feet. how fast

    asked by Anonymous
  300. Math

    find all real and imaginary solutions x^(2/3)-2=x^(1/3)

    asked by Samantha
  301. math

    Write the fllowing statements as integers * 4 degrees below zero * 20,000 leagues under the sea * a gain of 11 yards in Footbal * a loss of 36,000

    asked by someone
  302. 3rd grade

    At the Natural History museum Paula saw 5 times as many beetles as spiders. She saw 6 more spiders than caterpillars. If Paula saw 50 insects and spiders, how many of each kind did she see? Aunt is stumped!

    asked by Brayden
  303. MUSIC

    notes that begin a phrase before a downbeat are known as pick-up notes or a/an? A. duck walk B. Call and response C. shuffle groove D. Anacrusis

    asked by LVAL
  304. math

    In Harry's attic there are three spider webs. The first web is twice as large as the second web. The third web is 3 inches larger than the first web. The combined width of the three webs is 1 foot and 6 inches. Aunt is stumped again!

    asked by Brayden
  305. math word problem

    A rectangular bathtub with a base of 18 ft^2 is filling with water at a rate of ..7ft^3 per minute. How fast is the water level rising after 3 minutes?

    asked by sienna
  306. statistics

    Suppose only 75% of all drivers in a certain state regularly wear aseat belt. A random sample of 500 drivers is selected. What is theprobability that a). Between 360 and 400 (inclusive) of the drivers in the sampleregularly wear a seat belt? b). Fewer than

    asked by Dre
  307. 5th grade math

    write the following expanded notation in standard form. 600+50+4+0.2+0.07+0.009 ?? Build a 4 digit numeral. write 3 in the hundreths place 4 in the tens place 6 in the ones place,and 9 in the tenths place . ___ ___ ___ ___ please !help me with these to

    asked by pat
  308. math

    Find all real solutions: sqrt(x+10)+ sqrt(x-1)=11

    asked by Allie
  309. algebra

    train A and B are traveling in the same direction on parallel tracks. train A is going 80 miles per hour train B is going 84 miles per hour. train A past a station at 2:15 am train B passes at 2:45 am what time will train B catch train A

    asked by brian
  310. algebra II

    An aircraft flew 6 hours with the wind. The return trip took 7 hours against the wind. If the speed of the plane in still air is 276 miles per hour more than the speed of the wind, find the wind speed and the speed of the plane in still air. The wind soeed

    asked by Anonymous
  311. math

    an oceanographic research vessel comes across a volcano under the sea. The top of the volcano is 450 ft below the surface and the sea floor is -6700 ft. What is the height of the volcano. I believe it would be -6250ft..is this true

    asked by norman
  312. math

    what is the sign of the answer, when an odd number of negative numbers are multiplied?

    asked by paully
  313. math 11

    Is it possible for a rectangle with a perimeter of 44cm to have the area of 125cm^2 ? If so, find the dimensions of the rectangle. Figure out the equation in general form.

    asked by riley
  314. math

    solve the equation for all real and imaginary solutions (x-3/2)^2-2(x-3/2)+26=0

    asked by Allie
  315. math

    write a number pattern for 8 star fish if each has 5 arms

    asked by talha khan
  316. Math

    Solve:(sec 35 degrees) (csc 55 degrees) - (tan 35 degrees) (cot 55 degrees)

    asked by Audrey
  317. algebra

    what is the solution of this problem 0.6x+8

    asked by peaches
  318. Math

    solve: (square root of 3) sin(theta) + cos(theta) = 1 Thanks! :)

    asked by Bridget
  319. physics

    A football punter accelerates a 0.54 kg foot- ball from rest to a speed of 8.7 m/s in 0.24 s. What constant force does the punter exert on the ball? Answer in units of N

    asked by C K