Questions Asked on
October 2, 2013

  1. Calculus, check my answers, please!

    Could someone tell me if I'm right, and if not what the correct answer is? Thank you! I'd appreciate an explanation, too, if you could. :) 1. Suppose you're given the following table of values for the function f(x),and you're told that the function is

    asked by Samantha
  2. Math help please

    1. Solve for x. 4(x - b) = x b = 4/3x b = 3/4x x = 4/3b x = 3/4b 2. Solve for y, then find the value of y when given x = 2. 6x = 7 - 4y -12 7/4 19/4 24 I need help solving these. Can you please explain how to solve these problems?

    asked by Charlotte
  3. chemistry

    A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.77 nm. It then gives off a photon having a wavelength of 1100 nm. What is the final state of the hydrogen atom

    asked by marie
  4. Stats

    The time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated by a normal distribution with a mean value of 150 sec and a standard deviation of 20 sec. The fastest 10% are to be given

    asked by B
  5. Physics

    A person pushes on a 56-kg refrigerator with a horizontal force of -251 N; the minus sign indicates that the force points in the −x direction. The coefficient of static friction is 0.7. (a) If the refrigerator does not move, what are the magnitude and

    asked by Heather
  6. Algebra 1

    1). Last week, the ratio of laptops to desktops sold at a computer store was 2:3. Eighteen desktop models were sold. How many laptop models were sold? A: 12 laptop models were sold. 2). Find the unite rate: twenty-six crackers contain 150 Calories. A: 6

    asked by Anonymous
  7. Chemistry

    A gas is confined to a cylinder under constant atmospheric pressure, as illustrated in the following figure. When the gas undergoes a particular chemical reaction, it absorbs 824J of heat from its surroundings and has 0.62kJ of P−V work done on it by its

    asked by Yuki
  8. Calculus, check my answers, please? :)

    Okay, so I think these are right, but I would appreciate if someone could check them and tell me if something is wrong and what the right answer is. I'd also appreciate an explanation if possible. :)Thank you! 7. Given that f(x)={x^3 if x ≥ 0 {x if x < 0

    asked by Samantha
  9. Chemistry

    How many moles are contained in 1.20 x 1024 molecules CO2?

    asked by Vince
  10. Chemistry 12

    The original 10 ml (KIO3) solution is 0.020M is mixed with 10 mL of 0.0020M NaHSO3 which give a total volume of 20 mL. Calculate the concentration of KIO3 in the final mixture of the dilution.

    asked by Raj
  11. physics

    Find x-component of vector d=(110m , 46 degrees below + x-axis). Find y-component of vector d=(110m ,46 degrees below + x-axis). Find x-component of vector v=(350m/s , 28degrees above + x-axis). Find y-component of vector v=(350 , 28 above + x-axis). Find

    asked by john
  12. Calculus, check my answers, please! 3

    Did I get these practice questions right? 1. Suppose that f is an even function whose domain is the set of all real numbers. Then which of the following can we claim to be true? ***The function f has an inverse f –1 that is even. The function f has an

    asked by Samantha
  13. physics

    Three astronauts, propelled by jet backpacks, push and guide a 131 kg asteroid toward a processing dock, exerting the forces shown in the figure, with F1 = 36 N, F2 = 58 N, F3 = 41 N, θ1 = 30°, and θ3 = 60°. What is the (a) magnitude and (b) angle

    asked by kristy
  14. Health

    Which of the following statements is FALSE about hydrogenation? a. Hydrogenation makes fats softer and more liquid so that they become more easily spreadable. b. Hydrogenation helps fats resist rancidity and extends product shelf life. c. Hydrogenation

    asked by Anonymous
  15. MATH

    WRITE TO SHOW HOW YOU MAKE A TEN. THEN ADD. WHAT IS 9 + 7

    asked by Anonymous
  16. Physics

      A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The acceleration of gravity is 9.81 m/s^2 How fast was the pitch Answer in m/a B)... A spy and an official reach the edge of a 5.4m

    asked by Hunter
  17. Science

    An advertisement claims that three out of five dentists prefer a particular type of toothpaste. After researching the study, you find that the toothpaste company paid for it. Why should you be skeptical of the advertisement's claims? a. because the

    asked by Anonymous
  18. math

    A cannonball is fired across a field. Its height above the ground after t seconds is given by -16t^2+104. How long does it take for the ball to reach its maximum height of 169 feet?

    asked by manda
  19. Physics

    A flowerpot falls from a window sill 26.8 m above the sidewalk. What is the velocity of the flowerpot when it strikes the ground? The acceleration of gravity is 9.81 m/s2 .

    asked by Anonymous
  20. Geometry

    Substitution Property of Equality: If a=20, then 5a= _____. The substitution rule states that If a=b then a can be substituted for b in any equation or expression. So I think that 5a=5b but the number answer is 100. Am I correct?

    asked by David
  21. U.S. Government and Politics

    My question :) What level of government do you think should be in charge of security from foreign enemies? Write a paragraph explaining why this level of government is most appropriate. My answer is federal government do you agree??

    asked by Mary
  22. chemisry

    When alkali metals are heated with hydrogen they form what

    asked by john
  23. Math

    Ginny has two quarters. For every week that Ginny does all of her chores, her mother increases the amount of money Ginny has exponentially. The equation y=0.5*3^x represents the amount of money that Ginny has after x weeks of doing all of her chores. What

    asked by Jacob
  24. U.S. Government and Politics

    Another question :) What level of government should you depend on for sanitation in your neighborhood? Write a paragraph explaining why this level of government is most appropriate. My answer is local government, it's more community wise, right????

    asked by Mary
  25. Calculus

    Consider the curve given by y^2 = 2+xy (a) show that dy/dx= y/(2y-x) (b) Find all points (x,y) on the curve where the line tangent to the curve has slope 1/2. (c) Show that there are now points (x,y) on the curve where the line tangent to the curve is

    asked by Mathew
  26. Math

    Fred decides that 12+40=62 is NOT a true equation.Is Fred correct?Explain.

    asked by Jerry
  27. Chemistry

    What is the balanced chemical equation for Sr(NO3)2 + Na2PO4

    asked by Angela
  28. Idontgetit

    The value of the equilibrium constant (Kp) as represented by the first chemical equation is 2.00 x 10-2 at 730 K. Calculate the value of the equilibrium constant (Kp) for the second equation at the same temperature. Express answer in scientific notation.

    asked by Chemistry
  29. Physics

      A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The acceleration of gravity is 9.81 m/s^2 How fast was the pitch Answer in m/a B)... A spy and an official reach the edge of a 5.4m

    asked by Hunter
  30. math

    how can addition properties help me add whole numbers?

    asked by corey
  31. Statistics

    In a survey conducted by researchers at the University of Wisconsin, subjects were asked the question "Have you ever used cocaine?" in one of three methods, anonymous survey, personal interview, or phone survey. The contingency table below shows the

    asked by Tyra
  32. Physics

    A small block of mass m = 194 g is released from rest at point A , along the horizontal diameter on the inside of a hemispherical bowl of radius R = 29.5 cm, and the surface of the bowl is rough. The block's speed at point B is 1.56 m/s.

    asked by Leticia
  33. U.S. Government and Politics

    Are there any jobs that you think should be switched among federal, state, and local governments? Why? is welare a job

    asked by Mary
  34. science

    A small rocket is fired directly upwards with an initial velocity of 100m/s. How many seconds will it take to reach its maximum height?

    asked by madison
  35. Physics

    A rocket, initially at rest, is fired vertically with an upward acceleration of 10 m/s2. At an altitude of 500 m, find its velocity. 1000 m/s 500 m/s 100 m/s 10 m/s

    asked by Maryam
  36. Math (again)

    Sorry...I forgot to include all of the details for one of my previous questions the complete problem is: 1. Yesterday Josh sold some boxes of greeting cards. Today he sold seven boxes. If he sold 25 boxes in all, how many did he sell yesterday? I can solve

    asked by Carmen
  37. chemistry

    If a gas sample has a pressure of 31.3 kPa at 0.00°C, by how many degrees Celsius does the temperature have to increase to cause the pressure to double?

    asked by daniel
  38. science

    heating a mixture of iron and sulfur is it chemical or physical

    asked by armin
  39. General Chemisty

    1. If the initial concentration of BrCl(g) is 4.680 mol/L, calculate the % of BrCl(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kc at 500.0 K is 32.00. The initial concentration of the reaction

    asked by aarf
  40. Statistics

    In a survey conducted by researchers at the University of Wisconsin, subjects were asked the question "Have you ever used cocaine?" in one of three methods, anonymous survey, personal interview, or phone survey. The contingency table below shows the

    asked by Tyra
  41. Physics

    A dock worker applies a constant horizontal force of 80.0N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 10.0m in the first 6.00s. What is the mass of the block of ice?

    asked by Shelby
  42. English Grammar

    Fill in the blank using suitable preposition:- (1)He is sitting____the room.

    asked by Bhavin
  43. Physics

    When a charged particle moves at an angle of 19° with respect to a magnetic field, it experiences a magnetic force of magnitude F. At what angle (less than 90°) with respect to this field will this particle, moving at the same speed, experience a

    asked by Anonymous
  44. Idontgetit

    The value of the equilibrium constant, Kc, at a certain temperature is 2.50 x 102. If the reaction quotient for a mixture of these species at the same temperature is found to be 7.37 x 100, would the mixture yield more products, more reactants or is it at

    asked by Chemistry
  45. MATH

    if john spent $130 and matt spent $480, john will have three times as much money left as matt. both boy's started with the same amount of money. how much money did each boy's start with ?

    asked by Ron
  46. Chemistry

    A 50mL solution of Histidine-HCl (Histidine: pKa1=1.8, pKa2=9.2, pKa3=6.0)is titrated with 0.500M NaOH. What is the expected pH of the histidine solution at the points in the titration when 14.0mL, 26mL, and 38mL of the NaOH titrant is added?

    asked by Drew
  47. Idontgetit

    The value of the equilibrium constant, Kc, at a certain temperature is 2.56 x 10-1. If the reaction quotient for a mixture of these species at the same temperature is found to be 9.90 x 10-4, would the mixture yield more products, more reactants or is it

    asked by Chemistry
  48. English

    Is the word *command* a noun in this sentence or only the object of the preposition? "Seals balance balls on their noses on command."

    asked by IT
  49. General Chemisty

    2. Calculate the value of the equilibrium constant (Kc) for the reaction shown, if NO2(g) was found to be 95.54 % decomposed at 45.00 °C when its initial concentration was 5.725 mol/L. The initial concentration of the reaction products is 0 mol/L. 2NO2(g)

    asked by aarf
  50. Chemistry

    Calculate the value of the equilibrium constant (Kc) for the reaction shown, if NO2(g) was found to be 95.54 % decomposed at 45.00 °C when its initial concentration was 5.725 mol/L. The initial concentration of the reaction products is 0 mol/L. 2NO2(g) =

    asked by plzhelp
  51. Math

    make a table of values for the sequence 6,11,16,21,26 b) write an algebraic expression for the general term of the sequence. c) Use ur expression for the general term to calculate the 25th term in the sequence. Please help asap

    asked by Asap
  52. Math

    Jessica needs 5 5/8 yards of fabric to make a skirt and 14 1/2 yards to make a coat. How much fabric does she need in all? 19 9/8

    asked by Jerald
  53. Maths

    The 14th term of an Ap is double the 4th term.find the 10th term if the 2nd term is 8

    asked by Hacker
  54. Business Math

    How to determine the compound amount of an investment of $10,000 with an interest rate of 6%compounded monthly after 4 years requires you to use a table factor that beyond the compound Interest table. In how do you calculate the new table factor for this

    asked by Erica Walden
  55. history

    . Parliament passed the Coercive Acts, known in America as the Intolerable Acts, in response to A. Patrick Henry's Resolves. B. the Boston Tea Party. C. insults addressed to the customs commissioners. D. the Boston Massacre.

    asked by tiffany
  56. Algebra 1

    Solve each equation. Rewrite the equation as two cases. 1). The absolute value of x - 2 minus 3 equals 5. A: I know one of the solutions is 10. However, I do not believe there is a second solution. 2). The absolute value of x + 7 increased by 2 = 10. A: I

    asked by Anonymous
  57. Idontgetit

    At 565 K the value of Kp for the equilibrium represented by the balanced equation is 2.00 x 10-1. Calculate the value of Kc at the same temperature. Express answer in scientific notation. PCl3(g)+Cl2(g) = PCl5(g) ____ x 10 _____

    asked by Chemistry
  58. Idontgetit

    The value of the equilibrium constant, Kc, at a certain temperature is 8.33 x 10-4. Would the reaction as represented by the chemical equation favor reactants or products? Enter P or R. Cl2CO(g) = CO(g)+Cl2(g)

    asked by Chemistry
  59. Science/ Biol

    Pick the correct answer to the following question. Write a brief statement explaining why each choice of answers is correct or incorrect. A person is hyperventilating. Their rapid rate of breathing causes a loss of carbon dioxide than usual from the body,

    asked by Talan HELP PLEASE!
  60. Physicis

    Airplane staring from airport a flies 300 km east then 395 km 26.5 degrees west of north, and then 150 km north to arrive at airport b. what angle is the straight flight from a to b north of east and how far

    asked by Travis
  61. Shurley English Grade 4

    I'm suppose to write sentences from Grade 4 Shurley English book. I was suppose to bring book home and use page 25 - I forgot the book - anyone know what is on page 25? Thanks

    asked by Brayden
  62. General Chemisty

    3. Calculate the value of the equilibrium constant (Kc) for the reaction displayed if the following equilibrium concentration data were measured at 723.0 K: [N2(g)] = 2.936 mol/L, [H2(g)] = 2.933 mol/L, [NH3(g)] = 3.443 mol/L. N2(g)+3H2(g) = 2NH3(g)

    asked by aarf
  63. maths

    anyone can help me with this question plz .how u find the angle between side of hexagon which it has 6 different side and the length of each side is ,side1: 128mm, side 2:10mm, side3:112mm,side4: 82mm, side5:48mm,side6:30mm.

    asked by john help me with this question plz
  64. world history

    What role did the Greeks play in the creation of the Maurya Empire?

    asked by Hannah
  65. Chemistry

    If the initial concentration of BrCl(g) is 4.680 mol/L, calculate the % of BrCl(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kc at 500.0 K is 32.00. The initial concentration of the reaction products

    asked by plzhelp
  66. programming c#

    how do I Write a two class application that has a one-dimensional array as a data member. The array stores temperatures for any given week. Provide constructors for instantiating the class and methods to return the highest temperature, lowest temperature,

    asked by bo
  67. Physics

    A person wearing a safety belt can withstand an acceleration of 300 m/s 2 . How thick should barriers be to safely stop a car that hits the barriers at 81.7 km/h? answer in m

    asked by Harmonie
  68. MATH

    if john spent $130 and matt spent $480, john will have three times as much money left as matt. how much money did each boy start with ?

    asked by Ron
  69. health HELP

    Which of theses items provide the most zinc? Cheeseburger French fries, 10 strips Oatmeal cookie Cup of apple juice Cup of chocolate milk

    asked by Sara
  70. Psychology

    What is the independent variable in this scenario: A research Psychologist is working in a federal prison and is asked to !@#$%^& this new program. From 70 inmate volunteers, the psychologist randomly assigns 45 inmate volunteers to three groups: group A,

    asked by George
  71. math question

    How many distinct ways are there to label the faces of a cube with distinct numbers from 1 to 6, such that there is at least one pair of opposite faces which do not sum to 7? Rotations (which preserve orientation) are considered the same way. Reflections

    asked by Anonymous
  72. Idontgetit

    At 1650 °C the value of Kc for the equilibrium represented by the balanced equation is 2.38 x 10-1. Calculate the value of Kp at the same temperature. Express answer in scientific notation. CO(g)+H2O(g) = CO2(g)+H2(g) ___ x 10 ____

    asked by Chemistry
  73. health

    Consider the following scenario: Mr. Smith was admitted to the hospital for surgery on his left knee. When Mr. Smith woke up from the anesthesia, he realized that his right knee had been operated on. You have been asked to form a team to analyze this

    asked by Queen Sanchez
  74. physics

    A loaded truck can accelerate at 8.8 m/s 2 . It loses its load so that it is only 0.6 as massive. By what factor must the acceleration change for the same driving force?

    asked by Anonymous
  75. physics

    A meteoroid is speeding through the atmosphere, traveling east at 19.5 km/s while descending at 12.7 km/s. What is its speed, in km/s?

    asked by Ash
  76. math

    (ab^8)(a^5 b^6

    asked by Skeeter
  77. math

    10^1-10^0

    asked by Skeeter
  78. Intermediate Algebra

    Solve and check each radical equation. square root y+10=y-2

    asked by Kimberly Williams
  79. psychology

    HELP! Explain ethical issues in psychological research.

    asked by Anonymous
  80. math

    express in simplest form (2x+1)^2-2(2x^2-1) (2x+1)(2x+1)-2(2x^2-1) 4x^2+4x+1-4x^2+2 4x+3 is my answer Did I do this correctly? Thank you

    asked by B8
  81. Chemistry

    Calculate the value of the equilibrium constant (Kc) for the reaction displayed if the following equilibrium concentration data were measured at 723.0 K: [N2(g)] = 2.936 mol/L, [H2(g)] = 2.933 mol/L, [NH3(g)] = 3.443 mol/L. N2(g)+3H2(g) = 2NH3(g)

    asked by plzhelp
  82. Chemistry

    The initial concentration for the compounds involved in the reaction shown were determined to be [ClF(g)] = 0.5789 mol/L, [F2(g)] = 0.5980 mol/L, [Cl2(g)] = 0.05037 mol/L. Calculate the value of the equilibrium constant (Kc) at 2500 K if the equilibrium

    asked by plzhelp
  83. geometry

    [1.04] If B is between A and C, AB=2x-1, BC=3x+5 and AC=24, what is the value of AB? Segment A C contains point B.

    asked by brandon smith
  84. physical science

    a 300 kg astronaut and equipment move with a velocity of 2.oom/s toward an orbiting spacecraft. How long must the astronaut fire a 100N rocket backpack to stop the motion relative to the spacecraft?

    asked by Anonymous
  85. math

    if john spent $130 and matt spent $480, john will have three times as much money left as matt. how much money did each boy start with ?

    asked by Ron
  86. Calculus, check my answer, please! 2

    Consider the following functions: f(x)=sin(x^4-x^2) h(x)=(|x|-3)^3 g(x)=1n(|x|)+3 s(x)=sin^3(x) Which of the following is true? h and g are even, f and s are odd. f is even, h and s are odd. h and s are even, f is odd. ***f and h are even, s is odd. f, h,

    asked by Samantha
  87. PHYSICS HELP PLEASE!!

    way safety engineers build soft barriers so that cars hitting them will slow down at a safe rate. A person wearing a safety belt can withstand an acceleration of 300 m/s 2 . How thick should barriers be to safely stop a car that hits the barriers at 81.7

    asked by Harmonie
  88. engliiish

    dramatic monoluge and soliloquy main similarity and main difference

    asked by luna
  89. Math PLEASE HELP!!!

    Which of the following is false? a. A number that is divisible by 3 and 20 is divisible by 60. b. A number that is divisible by 4 and 15 is divisible by 60. c. A number that is divisible by 5 and 12 is divisible by 60. d. A number that is divisible by 6

    asked by Norma
  90. Math

    Lori's car gets about 28 miles per gallon of gas. About how many gallons of gas does Lori's car use for each mile driven? How do you know?

    asked by Frank
  91. physics

    The acceleration due to the moon's gravity at its surface is less than what it is here on the surface of the earth. The computed value of 1.6 m/s2 is consistent with what the Apollo Program astronauts observed during their explorations there. Imagine an

    asked by becca
  92. Science

    Briefly describe a desalination process. What can make desalination expensive? Name 2 renewable energy sources that can be used in desalination. Help me please and thankyou =)

    asked by Jake
  93. Physics

    . A package sitting on a shelf is knocked off. The velocity of the box just before it hits the floor is 8.5 m/s. Calculate the height of the shelf using; A displacement/velocity/acceleration equation Conservation of energy and hence show that these two

    asked by Sarah
  94. Physics

    A stone

    asked by Anonymous
  95. Idontgetit

    The value of the equilibrium constant, Kc, at a certain temperature is 2.56 x 10-1. If the reaction quotient for a mixture of these species at the same temperature is found to be 9.90 x 10-4, would the mixture yield more products, more reactants or is it

    asked by Chemistry
  96. math

    prove, using the law of exponents, that the following is true (2^4)^3=(64)^2 (use the same bases to rewrite the expression) the second half of =(8)^2 (8)^2 =(4)^2 (2)^2 (4)^2 (2)^2 =(2)^2(2^2)(2^2)(2^2)(2^2)(2^2) now the first part (2^4)^3 2x2x2x2 2x2x2x2

    asked by B8
  97. Physics

      A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The acceleration of gravity is 9.81 m/s^2 How fast was the pitch Answer in m/a B)... A spy and an official reach the edge of a 5.4m

    asked by Hunter
  98. government

    federal grants to state or local governments that are for specific programs are call? i have block grants as an answer. someone please check for me

    asked by Anonymous
  99. math

    what is the prime factorization of 13?

    asked by ari
  100. Biochemistry

    Are cytosine and Tyrosine the only amino acids that are ionized R-group chains at pH of 7?

    asked by Anonymous
  101. Math

    Find three consecutive integers such that nine less than three times the third is seven more than the sum of the first and second.

    asked by Kirandeep
  102. chemistryhelp

    how many moles of excess reactant are present when 3.20 x 10^2 mL of 0.226 M sulfuric acid reacts with 0.531 L of 0.185 M sodium hydroxide to form water and aqueous sodium sulfate

    asked by sydney
  103. Intermediate Algebra

    Evaluate or simplify the numerical expression. (16)3/4

    asked by Kimberly Williams
  104. Intermediate Algebra

    Evaluate or simplify the numerical expression. 11 1/2 . 11^3

    asked by Kimberly Williams
  105. algebra

    -4 -1 -3 (2/5) * (2/5)/(2/5)

    asked by iliana
  106. Intermediate Algebra

    Solve each radical equation. Check your solutions. square root 5x-4=6

    asked by Kimberly Williams
  107. English

    In class, my teacher gives a simple sentence and we have to make up a paragraph or less to describe that simple sentence without saying the word "temper" in it. The sentence is "He had a temper" So I started mine off with this Isaac came home and was

    asked by Anonymous
  108. General Chemisty

    4. The initial concentration for the compounds involved in the reaction shown were determined to be [ClF(g)] = 0.5789 mol/L, [F2(g)] = 0.5980 mol/L, [Cl2(g)] = 0.05037 mol/L. Calculate the value of the equilibrium constant (Kc) at 2500 K if the equilibrium

    asked by aarf
  109. algebra

    can someone please help me solve this solve by completeting the square 1/2 ¡¼X ¡½^2 -7x=16

    asked by Rick
  110. Physics

    1)The speedometer on a car’s dashboard measure average speed average velocity instantaneous acceleration instantaneous speed 2)A car moving on a straight road increases its speed from 30 m/s to 50 m/s in a distance of 180 m. If the acceleration is

    asked by Maryam
  111. Physics

    You are holding a bulletin board weighing 7.01 N in place against a wall while your friend secures it to the wall. To keep it from slipping, you apply a force perpendicular to the bulletin board, pressing it directly into the wall. How large must this

    asked by Erica
  112. Math

    Which of the following is false? a. A number that is divisible by 3 and 20 is divisible by 60. b. A number that is divisible by 4 and 15 is divisible by 60. c. A number that is divisible by 5 and 12 is divisible by 60. d. A number that is divisible by 6

    asked by Norma
  113. Math

    Which of the following pairs of numbers has the most common multiples less than 10? a. 2 and 5 b. 4 and 6 c. 2 and 8 d. 3 and 9

    asked by Norma
  114. w

    i would like to know on what is required for a high chance to get accepted to uc berkeley

    asked by Tinm
  115. Math order of operations using negatives

    -3(8-6)^3+27/9= -8

    asked by Jerald
  116. english

    need help with comma and semi colon.

    asked by felicia
  117. BC Calculus

    Find a general formula for F''(x) if F(x) = xf(x) and f and f' are differentiable at x.

    asked by Fran
  118. physics urgent please help!

    way safety engineers build soft barriers so that cars hitting them will slow down at a safe rate. A person wearing a safety belt can withstand an acceleration of 300 m/s 2 . How thick should barriers be to safely stop a car that hits the barriers at 81.7

    asked by Harmonie
  119. algebra

    write y = - 3x - 6; ( -1, 5) in an equation of a line parallel to the given line but passing through the given point

    asked by Anonymous
  120. child care

    A child who complains of headache and sleepiness after coloring is suffering from what condition?

    asked by anony
  121. math

    Please Help! The perimeter (distance around) of a triangle is 7/x+1, The sum of two sides of the triangle is 3/x, the distance of the remaining side follows he format ax+b/x^2+x. what is the vale of a?

    asked by sam
  122. PHL 103

    p v q is the best interpreted as

    asked by Anonymous
  123. Algebra 2

    Two Olympic swimmers, Ryan and Michael, create unique ripple waves in the water. The function created by Ryan is f(x) = 4x2 + 7. The function created by Michael is f(x) = 4x2 - 5x + 3. Describe to Ryan and Michael, using complete sentences, which operation

    asked by Maggie
  124. physics

    Find x-component of vector a=(4.0 , - y-direction). Find y-component of vector a=(4.0 , - y-direction).

    asked by joe
  125. Physics

    Use the concepts of acceleration, force and yield strength to explain why delicate goods shipped in a cardboard box are often first packed in polystyrene foam.

    asked by tina
  126. Math

    What number is 6^-1 Explain using table of vaules and the law of expoints

    asked by peter
  127. math

    The path of a cliff diver can be modeled by a parabolic curve. The regression equation matching one particular dive is h(t)= -4.9^2+4.6x+24.8 h is height t is time in seconds at what point in meters did the diver reach maximum height?

    asked by sam
  128. Math

    squareroot of 8 * exponents 3

    asked by Ray
  129. English

    His French is like that of native. (Is this sentence grammatical?)

    asked by rfvv
  130. physics

    A resistance of 10 ohms and a capacitance of 0.1 farad are connected in series to an alternating voltage source with output (in volts) Vt  50 cos30t. Find the current in the circuit at any time t  0.

    asked by Ce
  131. English

    1. Electronics are very popular in Korea. 2. Electronics is very popular in Korea. (Thank you for your help. Which one is grammatically correct?)

    asked by rfvv
  132. math

    rewrite the expressions as a number times the sum of two numbers withe no common factors 7+14

    asked by calvin
  133. math

    Solve the inequality -12> x-7

    asked by amy
  134. geometry- Urgent!!!!

    In various constructions, you need to use the longer of two segments to construct the radius of a circle. Why do you think this is? What happens if you use the shorter segment?

    asked by akk
  135. chemistry (Dr.Bob222)

    In a reaction, if the concentration decreases faster, that means the reaction has a larger rate constant, and a faster reaction, and a shorter half-life. Is that a correct statement? If not, please correct me, thanks for your help :)

    asked by K
  136. physical education

    draw a pole vault field

    asked by uzu natheniel
  137. social studies

    what is the kiutl tribes shelter

    asked by nadiya
  138. social studies

    The Great Awakening converted people to what kind of religion?

    asked by Mario Garcia
  139. Math

    Write a phrase to represent the opposite 20 meters forward

    asked by Bryce
  140. Math

    -10 + 6g = 110

    asked by Liz
  141. math

    evaluate t^0, when t =4

    asked by Skeeter
  142. Intermediate Algebra

    combine. 3 square root 13 + 7 square root 13

    asked by Kimberly Williams
  143. math

    (a+b)^9/(a+b)^9

    asked by Skeeter
  144. Calc

    find the second derivative f(x)= 1/(4u^2-3)^2

    asked by Rebekah
  145. math

    15y^7/5y^4

    asked by Skeeter
  146. Math

    24. (-8 6/11)-(-2 5/11)= -7 25. (-4 5/8)- 3/8= -5

    asked by Jerald
  147. mixed numbers with unlike denominator

    26. 1/15+3/5=2/3 27. 1/10+1/3=13/30 28. (-1/6)+7/18=2/9

    asked by Jerald
  148. Intermediate Algebra

    Solve each radical equation. square root 5x^2-3x=2x

    asked by Kimberly Williams
  149. Intermediate Algebra

    Solve by the equatic formula and simplify. x^2-3x-1=0

    asked by Kimberly Williams
  150. Intermediate Algebra

    Solve by the equatic formula. 4x^2+x-1=0

    asked by Kimberly Williams
  151. Intermediate Algebra

    Solve by the equatic formula. 6x^2-2x-1=0

    asked by Kimberly Williams
  152. Accounting - Writing

    UOIT has recently appointed you to prepare an independent consulting report to analyze the university’s current financial position and to provide some recommendations for improvement. Before you begin your analysis, you decide to identify UOIT’s

    asked by Ally
  153. Math

    Find the pattern 0.8, 0.4, 0.2, 0.1, ?

    asked by Nate
  154. Algebra 1

    8x+2x=15x-10

    asked by May
  155. algebra

    evaluate t^0, when t=4

    asked by Skeeter
  156. math

    can the commutative property be used for subtraction? explain

    asked by corey
  157. Algebra 1

    22x+70=17x-95

    asked by May
  158. Health

    Which of the following lipoproteins carries dietary fat that is absorbed into the digestive system to the liver and body cells for use? a. Chylomicrons b. High density lipoprotein c. Micelle d. Low density lipoproteins I think its A is that correct?

    asked by Anonymous
  159. Math

    33. 5/8-7/12= 1/24 34. (-3/4)-(-5 1/2)= 5 1/4 25. 6 5/6- 2 1/3= 4 1/2 36. 12 1/2- 6 3/8= 6 1/8

    asked by Jerald
  160. math

    (Radical 15- radical 5) (radical 15 + radical 5) and radical (-20) squared /2

    asked by deedeee
  161. Geometry

    In various constructions, you need to use the longer of two segments to construct the radius of a circle. Why do you think this is? What happens if you use the shorter segment?

    asked by Anonymous
  162. Algebra Emergency

    Find the inverse of 2/2x-1 and verify.

    asked by Jane
  163. Algebra Emergency!!

    Find the inverse of f(x)=2x+1/x-1 and please VERIFY(CHECK) Thanks so much

    asked by Jane
  164. HSM 260 checkpoint 6

    I think the question is...we are only to use the year 2002 in Appendix D. Others are using 2002, 2003, and 2004, to come to the BEP. If an instructor asks for us to only use 2002, how can we complete the checkpoint accurately.

    asked by Stella
  165. science

    what are the class elements of the boron family? Ansere please and help asap

    asked by Anonymous
  166. chemistry

    What are standard temperature and pressure? Why was a standard needed?

    asked by Joseph
  167. calculus

    Find the derivative... 1) f(u)= 1/ (2u^2-1)^2

    asked by Rebekah
  168. physics

    If a person is thrown to a maximum height of 26.0 ft above show calculations for _______ s (time below 13.0 ft) _______ s (time above 13.0 ft)

    asked by ddd
  169. algebra 1

    the sides of a triangle are (x+2),(3x+1), and (x+7) find the value of x if the perimeter is 140cm

    asked by bella
  170. Physics ASAP!!!

    A person wearing a safety belt can withstand an acceleration of 300 m/s 2 . How thick should barriers be to safely stop a car that hits the barriers at 81.7 km/h? need final snswer in m

    asked by Harmonie
  171. Geography

    Why do the trees drop their leaves in the fall?

    asked by Grace
  172. English

    Can anyone help me figure out what's wrong with this sentence? "The lighthouse is further away than it first appeared."

    asked by mar
  173. American History

    informal changes to the constitution include. A.Treaties B.Laws passed in congress C. Supreme court decisions D. All of the above

    asked by jason
  174. Calculus, check my answer, please! 1

    Did I get this practice question right? 1. Consider the following functions: f(x)=cos(x^3-x) h(x)=|x-3|^3 g(x)=1n(|x|+3) s(x)=sin^3(x) Which of the following is true? (Points : 1) f is even, h and s are odd. ***f and g are even, s is odd. h and s are odd,

    asked by Samantha
  175. what is a good online dictionary ?

    I have to do vocabulary for my social studies teacher but not all of the words are in the glossary of the text book

    asked by kimmy
  176. 5th grade math help

    graph each integer on a number line -3

    asked by daniel