1. psychology - revised

    Question How accurately do you think these exercises evaluate self-concept and self-esteem? How do self-concept and self-esteem influence your self-identity? How do self-concept, self-esteem, and self-identity differ? When it comes to accuracy, self-esteem
  2. stats

    blood cholesterol level of all men age 20-24 follows N(188,41) where the units for the men and standard deviation are in mg/dl. what is the probability that the sample mean takes a value between 185 and 191 if we sample 1000 men
  3. Math (Calculus - Limits)

    Find the constant c so that lim x->8 x^2+2x+c/x^2-15x+56 exists. For that value of c, determine the limit. (Hint: Find the value of c for which x-8 is a factor of the numerator). I understand that I should set (x-8)(x+b) equal to x^2+2x+c but all the
  4. physics

    A particle is projected with a speed of 25 m/s at angle of 40 degrees abovethe horizontal. find the time taken to reach the highest point of trajectory.find the magnitude and direction of the velocity after 2 seconds.
  5. This isn't about school

    Hey Ms. Sue I feel ya, lots of cheaters on this website I understand, but sadly you can't do anything because from the beginning of time people always find a way to cheat the system and find loop-holes.
  6. Math

    can someone please check my answers simplest form evaluate 2/3+3/5-5/7= 58/105 6. 3/7*24/25 divide by 6/7= 12/25 8.find GCF 432,360,288=72 9. 1050,9360,330=30 11. find LCM 14,75,78=13,650
  7. stats help

    i cant find how much the stock price (NYCE) for standard oil on black friday ( 1929) dropped? can anyone sggest a site thathas it... i couldn't find any sites that provide this information. please help me! THANK YOU!!!
  8. Calculus Need of Urgent help

    find the indicated limits, if they exist. 1. lim (3x^3+x^2+1)/(x^3+1) x-> -infinity 2. find the slope of the tangent line to the graph of the given function at any point: f(x) = 2x +7 Could anyone please, please, please explain to me how to do these
  9. classroom instruction

    • Include the following sections for this portfolio component: o o Organizing Procedures and Resources o Arranging the Environment o Anticipating and Handling Problems can you help me find some information the this plz. i found the others i need but
  10. Music

    please can someone help me. i need to find out what inspired Rihanna ,Robbie Williams ,The Saturdays, Lady GaGa ,Pink and Pixie Lott to become singers. ive looked on their biography sites but i cant find anything. thankyou :)
  11. calculus

    A quantity has the value P at time t seconds and is decreasing at a rate proportional to sqrt(P). a) By forming and solving a suitable differential equation, show that P= (a - bt)^2 , where a and b are constants. Given that when t= 0, P = 400, b) find the
  12. calculus

    A quantity has the value P at time t seconds and is decreasing at a rate proportional to sqrt(P). a) By forming and solving a suitable differential equation, show that P= (a - bt)^2 , where a and b are constants. Given that when t= 0, P = 400, b) find the
  13. Physics

    calculate the acceleration of this system, assuming that there are no frictional forces between the table and Block A. Block A is sitting on a table connected by a rope to a pulley system and Block B is hanging off the table connected to the rope from the
  14. Momentum ~ Physics

    A 25-g bullet is fired at 150 m/s into a 2.0-kg block of wood hanging from a string 3.0 m long. The bullet becomes imbedded in the block. To what height do the bullet and block swing?
  15. physics

    A 50.0-kg block is being pulled up a 13 degree slope by a force of 250 N which is parallel to the slope. The coefficient of kinetic friction between the block and the slope is 0.200. What is the acceleration of the block?
  16. science

    An earth satellite in an elliptial orbit moves with a) slower speed as it ages b) none of the above c) constant speed d) faster speed as it ages Just need to know if my answer or right or wrong. Thanks! :) b or d but im strongly going for D but i could be
  17. Starcatcher

    PLEASE CHECK MY ANSWERS!! Which of the following is the best definition of a suspense story? (1 point) a story that tells the gory details of violent acts a story that keeps the reader on edge about its outcome** a story that tells about the struggle
  18. physics

    The horizontal surface on which the block of mass 5.2 kg slides is frictionless. The force of 64 N acts on the block in a horizontal direction and the force of 128 N acts on the block at an angle as shown below. 5.2 kg 128 N 60 ◦ 64 N What is the
  19. Physics

    The horizontal surface on which the block slides is frictionless. The speed of the block before it touch the spring is 6.0 m/s. How fast is the block moving at the instant the spring has been compressed 0.15 m? The spring constant, k = 2000 N/m
  20. physics

    A person pushes a block up a frictionless incline at a constant velocity. The incline is 35o, and the mass of the block is 28 kg. If he only exerts a horizontal force, how much work does he do if the block travels 7 m along the incline?
  21. Physics

    A 4.00-kg block rests on a 30.0° incline. If the coefficient of static friction between the block and the incline is 0.700, what magnitude horizontal force F must act on the block to start it moving up the incline, given g= 9.80m/s^2?
  22. physics please please please please please

    a block of mass 2.50 kg rests on a ramp. if the coefficient of static friction between the block and ramp is 0.350, what maximum angle can the ramp make with the horizontal before the block starts to slip down?
  23. physics

    A block of mass m= 100kg rests on a level ground. With what force, parallel to the ground, must you push the block so that it is just ready to start sliding? The coefficient of static between the block and ground is 0.40.
  24. physics

    A 506 g block is released from rest at height h0 above a vertical spring with spring constant k = 500 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 18.4 cm. How much work is done (a) by the block
  25. Physics

    A block with a mass m = 3.50 kg sits on a surface with a coefficient of static friction µs = 0.520. A spring with spring constant k = 75.0 N/m is hooked onto the block, and is slowly pulled horizontally, gradually stretching the spring. (a) When the
  26. Algebra

    In still trying to figure out the equation for S=C(1+r/100)^5 to help me to find the inflated cost S, in 5 years, for sunglasses they cost 3.72103 in Afghanistan currency which will go into the C spot of the equation. which these glasses will cost $169.40
  27. math

    The population of a town increases at the rate of 40 per thousand. Its population after 2 years will be 6084. Find its present population
  28. math

    mr jones buys a new car for $50,000. the car decreases in value at the rate of 30% each year. find the value of the car after two years.
  29. Math

    I need to find the area of a shaded part. it is a square with a circle the measurements that I have are pi = 3.14 and 15 ft by 15 ft. I know to find the area of the square I take base x height but cannot figure out correct formula for subtracting the
  30. AP Physics

    Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is μk = 0.27
  31. physics

    A block of mass m is held against a spring of spring constant k which is compressed a distance Ax. On the shaded region (d = 2 m), there is a coefficient of kinetic friction = 0.3 microcontroller, which then applies the rest of the course takes place
  32. Algebra

    Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5.88*10^12 miles. Suppose a star is 3.2*10^12 light-years from Earth. In scientific notation, approximately how many
  33. Math -Please help me!!! I'm desperate for help!

    I need help: Emmett has a 15-year $115,000 mortgage at 7.1% His monthly payment is $1,040.09 Find the principal after the first payment. I know to multiply 115,000 by 7.1 divided into 12 months, then subtract that answer by $1,040.09. When I mulitply
  34. geomitry

    the first angle of a triangle is complementry to the third angle. the second angle is 16 degrees less than five times the first angle. find the measure of the largest angle of the triangle.
  35. Math(Please help)

    Write an equation of the line satisfying the given condition. a) x intercept = 3 y intercept=-2 I am really not sure how to start here. b) vertical line containing (5,-1) Would it be y=5x-1? c) parallel to the line 3x-4y=5 and containing the points (3,-6)
  36. Physics - Question

    I have this number where they give me the coordinates of 3 particles and the mass of each one of them. Afterwards, there's a force applied on 2 of those particles and they ask me to calculate the systems total moment of inertia. But then they ask me this:
  37. English writting rule

    Directions:Correcting the sentences given if needed under the rule of: Inclusive Language-Making language nonracist and nonagist.#1-5 (1)She is a very capable black woman (2)His grandmother really enjoys spending the afternoon at the center for senior
  38. Physics

    A 263-g block is dropped onto a vertical spring with force constant k = 2.52N/cm. The block sticks to the spring, and the spring compress 11.8 cm before coming momentarily to rest. while the spring is being compressed, how much work is done: (a) By the
  39. math (calc)

    At noon, ship A is 150 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 25 km/h. How fast is the distance between the ships changing at 4:00 pm. Find the intervals of increase or decrease find the local maxiumum and
  40. Physic help

    A disk of radius 30 cm is spinning about it axis at 60rmp it deacelerate at a constant rate of 2.0 rad/s^2 until it reaches 20 rpm A find the initial and final angular speed in radians per sec B fine the time it takes to deacelerate from the initial to the
  41. Physics

    A block of mass 3 kg is at rest on an incline. The coefficient of state friction between the block and incline is 0.34. What is the maximum angle of the incline such that the block will not slide down the plane?
  42. geometry

    Hello I have an assignment were I have to answer the following questions. I have posted the questions and their answers below can someone please read over them and see if what I wrote is correct and if it is not how do I fix it? Thank You ! 1.Who was
  43. Geometry HELP!!

    I need help with my geometry hw, i need to now wat the properties are for the following statements. 1. If 2x=6, then x=3 2. If 42 degrees + measure of angle 2 = 90 degrees, then measure of angle 2 = 48 degrees 3. If measure of angle D = 40 degrees and
  44. physics

    Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is μk =
  45. physics

    Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is μk =
  46. Dynamics

    The 25-lbf block has an initial speed for v0 = 10 ft/s when it is midway between springs A and B. The coefficient of static and kinetic friction between the plane and the block are μs = 0.45 and μk = 0.4, respectively. After striking spring B,
  47. chem

    Can someone please help me with the following questions? 1:Suppose you were given an ancient wooden box. If you analyze the box for carbon-14 activity and find that it is 50% of that of a new piece of wood of the same size, how old is the wood in the box?
  48. algebra

    Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5.88 *10^12 miles. Suppose a star is 3.2 * 10^2 light-years from Earth. In scientific notation, approximately how many
  49. Algebra

    Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5.88 *10^12 miles. Suppose a star is 3.2 * 10^2 light-years from Earth. In scientific notation, approximately how many
  50. Algebra

    Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5.88 *10^12 miles. Suppose a star is 3.2 * 10^2 light-years from Earth. In scientific notation, approximately how many
  51. maths

    1. Identify two examples of exponential r/s 2. The data below shows how the the population of the world has changed over the last three hundred years Year population(mill) 1650 500 1700 600 1750 700 1800 900 1850 1300 1900 1700 1950 2500 2000 7000 The data
  52. algebra

    1. Solve 3x – 19 = 2 Ax = -17 Bx = -17/3 Cx = 7 Dx = -51 Ex = 20 Fx = 18 2. Solve 4x + 12x = 62 + 4(11) Ax = 7 Bx = 5 Cx = 35 Dx = 64 Ex = 11 Fx = 7/2 3. Solve 8x – 7 = x + 10 Ano solution Bx = 1/3 Cx = 1/10 Dx = 3/7 Ex = 17/7 Fx = 17/9 4. Solve 4(5x
  53. Physics 221

    A constant horizontal force of magnitude 18.0 N pushes a block of mass 2.00 kg along a rough horizontal surface for a distance of 2.00 m. During this operation the speed of the block changed from 4.00 m/s to 6.00 m/s. What work was done on the block by
  54. Physics

    A block is released from rest at the top of an inclined plane. The height of the plane is 5.00 m and it makes an angle of 30.0 degrees with the horizontal . The coefficient of kinetic friction between block and surface is 0.200. What is the speed of the
  55. physics

    Block M = 7.50 kg is initially moving up the incline and is increasing speed with a = 3.82 m/s2 . The applied force F is horizontal. The coecients of friction between the block and incline are s = 0.443 and k = 0.312. The angle of the incline is 25.0
  56. Physics

    a 2.5kg block initially at rest on horizontal surface. A horizontal force F of magnitude 6N and a vertical force P are the applied to the block. The coefficients of friction for the block and surface are Ms=0.4 and Mk=0.25.Determine the magnitude of the
  57. Circuits and electronics applications3

    We are working on finding the particular solution for the first-order linear constant-coefficient ordinary differential equation: RCdvP(t)dt+vP(t)=Vicos⁡(ωt) The new idea is to find the particular solution for the related equation
  58. geometry

    the supplement of an angle is 15 degree less than twice the angle.find the measure of the angle and its supplement.
  59. geometry

    the complement of an angle is 18 degree more than the angle.find the measure of the angle and its complement.
  60. Math for Ms. Sue please! Last math questions!

    For numbers 1–3, find the indicated measurement of the figure described. Use 3.14 for pi and round to the nearest tenth. Find the surface area of a sphere with a radius of 8 cm. 267.9 cm^2 803.8 cm^2 2143.6 cm^2 201.0 cm^2 Find the surface area of a
  61. calculus II

    We're doing areas by integrals now, with 2 eqns. I have a few questions. 1. Sketch the region in the xy-plane defined by the inequalities x-2(y^2)> 0 and 1-x-abs(y)>0. and find its area. Would it be best to solve for x, then graph it as x= something?
  62. grammar

    Dangling Modifiers If your baby does not like cold apple juice, it should be heated. Your answer: 1. Dangling Modifiers When they are fresh, eating oranges can often keep away the cold virus. Your answer: 2. Predication Our plans for tomorrow should begin
  63. architecture

    •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.
  64. Maths

    Demand function P=50-Q Average Cost 5Q + 40 +10/Q Calculate the firm's total cost function Find the marginal cost function and evaluate it at Q=2 and Q=3 What is the total revenue function Find the firms's revenue maximising output level Find the firm's
  65. Math

    For painting a triangular courtyard and a square courtyard, an equal amount of paint is required. if the edges of the triangular courtyard measure 16.5 m, 27.5 m and 22 m, find the length of the square courtyard, correct up to 2 decimal places.
  66. Math: Intersections of 3 Planes

    For what value of "k" will the following set of planes intersect in a line? x - 2y - z = 0 x + 9y - 5z = 0 kx - y + z = 0 Work: Elimination to find "z": x - 2y - z = 0 x + 9y - 5z = 0 ------------------ -11y + 4z = 0 z = 11y/4 Sub "z" into "x - 2y - z = 0"
  67. pre-calculus urgent

    The first term of an arithmetic sequence is 6, and the tenth term is 2. (a) Find the common difference d. d = Find the 100th term of the sequence. a100 = (b) Find the partial sum of the first ten terms. S10 = how do i do this, there's an example I tried
  68. Geometry

    A right triangle has exterior angles at each of its acute angles with measures in the ratio 13:14. Find the measure of the smallest interior angle of the triangle. 40 (degrees) 50 (degrees) 130 (degrees) 140 (degrees) Please help? Thanks
  69. Trig

    An isosceles triangle has a height of 12.5 m (measured from the unequal side) and two equal angles that measure 55°. Determine the area of the triangle. Split in half the triangle is a right triangle, so it's three angles are 90%, 55% and 70%. I'm still
  70. physics

    In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle è is 26 °. If the blocks are released from rest with the connecting cord taut, what
  71. math

    suppose that $3500 is borrowed for three years at an interest rate of 4% per year. compounded continuously. find the amount owed, assuming no payments are made till the end. Round to the nearest cent.
  72. history

    What vital right did the Spanish allow the Western farmers? Answer: It was that Spain allowed Americans to travel on the lower Mississippi to New Orleans and to ship their goods. "cORRECT right??" mmhmm Can you help me out with this one???? Did you ever
  73. Language arts

    Selection 1: There's good news and bad news about grizzly bears in the American West. The good news? Their numbers have been increasing in recent years. In 1975, grizzlies made the threatened-species list under the federal Endangered Species Act. The bad
  74. Foundation of a Healthy Lifestyle

    Neuron development and elaboration, which occurs between birth and age 10, is prompted by A. intake of foods rich in vitamins and minerals. B. physical movement on the part of the child. C. aural prompts from the family, school, and environment. D.
  75. Math

    Mr. Badger bought 12 pens every month until their price rose to 15 cents each. Now he can only afford to buy 10 pens at the same total cost as before. What was the original price of each pen? There are 41 pigs and chickens on a farm. If there are 100 legs
  76. I need help with Physics

    A baseball of mass m1 = 0.46 kg is thrown at a concrete block m2 = 8.25 kg. The block has a coefficient of static friction of μs = 0.81 between it and the floor. The ball is in contact with the block for t = 0.165 s while it collides elastically. m1 =
  77. math

    The distriubution of the SAT scores in math for an incoming class of business students has a mean of 580 and standard deviation of 25. Assume that the scores are normally distributed. a. Find the probability that an individual's SAT score is less that 550.
  78. Social Studies

    Answer each question below with one of the three types of maps described below Physical Thematic Political Which type of map would you use to find out if Denver is located in the Rocky Mountains? Physical Which type of map would you use to find out what
  79. physics

    A 1.6-kg block is attached to the end of a 2.0-m string to form a pendulum. The pendulum is released from rest when the string is horizontal. At the lowest point of its swing when it is moving horizontally, the block is hit by a 10-g bullet moving
  80. Physics

    The displacement of a block of mass 439g 439 g attached to a spring whose spring constant is 66N/m 66 N m is given by x=Asin(ωt) x A s i n ω t where A=12cm A 12 c m . In the first complete cycle find the values of x x and t t at which the kinetic
  81. Algerbra 2

    alex buys a home for 118000. her home increases in value 9% each year. write an equation that models this and find the value of the home after 6 years?
  82. Math 111

    Suppose that $5000 is invested in an account with an account with an APR of 12% compounded monthly. Find the future value of the account in 5 years.
  83. stat

    While technology or a​ t-distribution Distribution Table can be used to find the​ area, in this​ problem, technology will be used. Find the​ P-value associated with t t0equals=1.34 and 19 degrees of​ freedom, rounding to three
  84. math geometry

    in a triangle, the measure of the first angle is four times the measure of thesecond angle.The measure of the third angle 78 more than the second angle. What is the measure of the first angle?
  85. Calculus Answer Check

    A particle moves along a line so that its position at any time t >= 0 is given by the function -t^3 + t^2 + 5t + 3, where p is measured in feet and t is measured in seconds. 1. Find the displacement during the first four seconds. My answer: 75 ft 2.
  86. geometry

    A triangle is formed where line segment AC and line segment BC have the same length. If the measure of angle ACB = 81 degrees, find the measures of angles x and y so that the top horizontal line will be parallel to the bottom horizontal line.
  87. Physics

    Block 1 (2.5kg) is on the surface of a frictionless inclined plane that makes an angle of 20 degrees with the horizontal. Assume g = 10 m/s2 magnitude of the acceleration of block 1 down the incline plane is 3.4 m/s2 How far does block 1 travel down the
  88. physics

    A 350 g block is attached to a vertical spring whose stiffness constant is 12 N/m . The block is released at the position where the spring is unextended. a) What is the maximum extension of the spring? b)How long does it take the block to reach the lowest
  89. physics

    A 350 g block is attached to a vertical spring whose stiffness constant is 12 N/m . The block is released at the position where the spring is unextended. a) What is the maximum extension of the spring? b)How long does it take the block to reach the lowest
  90. physics

    A 350 g block is attached to a vertical spring whose stiffness constant is 12 N/m . The block is released at the position where the spring is unextended. a) What is the maximum extension of the spring? b)How long does it take the block to reach the lowest
  91. physics

    A 750g block is attached to a vertical spring whose stiffness constant is 1N/m . The block is released at the position where the spring is unextended. a) What is the maximum extension of the spring? How long does it take the block to reach the lowest
  92. physics

    A 350 g block is attached to a vertical spring whose stiffness constant is 12 N/m . The block is released at the position where the spring is unextended. a) What is the maximum extension of the spring? b)How long does it take the block to reach the lowest
  93. Quadratic Functions

    Please explain to me how to do the following problems, I don't understand them. Thanks! Find the x-intercepts (if any) for the graph of the quadratic function. 1.f(x) = (x + 2)2 - 4 Find the y-intercept for the graph of the quadratic function. 5.y + 9 = (x
  94. ap calc

    a particle moves along the x-axis so that its velocity at any time t is equal to or > 0 is given by v(t)= (2pie-5)t-sin(piet) a.find the acceleration at any time t. b.find the minimum acceleration of the particle over the interval [0,3] c.find the
  95. Calc

    Let f be the function given by f(x)=2ln(x^2+3)-x with domain -3 is less than or equal to x which is less than or equal to 5 a) Find the x-coordinate of each relative maximum point and each relative minimum point of f. Justify your answer. b) Find the
  96. ap calc

    a particle moves along the x-axis so that its velocity at any time t is equal to or > 0 is given by v(t)= (2pie-5)t-sin(piet) a.find the acceleration at any time t. b.find the minimum acceleration of the particle over the interval [0,3] c.find the
  97. c+=

    true life magazine wants an analysis of the demographic characteristics of readers in c++ the marketing department has collectedreader survey records containing the age , gender , marital status ,and annual income of readers the data is stored in an input
  98. world history

    How did the Renaissance contribute to the Age of Exploration? by emphasizing the importance of converting people to Christianity by awakening a spirit of discovery and innovation in Europe by fostering a belief in the importance of working as a group by
  99. Geology

    Imagine that the gasoline that you are burning in your car this week was refined from petroleum that was produced from jurassic-age rocks in Arkansas. What is the primary source of energy that has been reclaimed to power your car? Explain. Hint: What is
  100. math

    Hi I need someone to check my answers I'll show whatever work I have but for time purposes I'll just post my answers because I think I have most of them correct. Thanks! 1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7. A)143 B)136