1. Chemistry

    Find the entropy change of the universe when 2 moles of water freezes at -10 degrees celsius. The delta G for the freezing of water at -10 degrees celsius is -210 J/mol and the heat of fusion of ice at this temperature is 5610 J/mol.

    asked by Linda on April 21, 2013
  2. probability and statistics

    The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected salary for an engineer with 48 years of experience. Round to the

    asked by Rhanda on April 26, 2010
  3. physics

    a metal object is suspended from a spring balance scale. the scale reads 800 N when it is suspended in air and 700 N when the object is completely submerged in water. find the buoyant force, the volume and the density of the metal.

    asked by ryan on February 3, 2015
  4. math

    You are playing volleyball. You hit the volleyball with an initial vertical velocity of 15 feet per second when it is 4 feet above the ground. Find how many seconds it takes to reach the maximum height, the maximum height reached, and the time the object

    asked by stefani on August 31, 2013
  5. Algebra

    A group of people are tubing down a river at an average speed of mi/h. Write a direct variation equation that gives the number of miles y that the people will float in x hours. Graph the equation and use the graph to find the distance traveled in 2.5

    asked by Cairo on September 25, 2017
  6. Algebra

    The path of a football thrown by a quarterback can be modeled be the equation y=-0.04x^2+4x+5 where x is the horizontal distance in feet and y is the corresponding height in feet.find the interval on which the height is increasing.what is the average rate

    asked by Anonymous on April 27, 2017
  7. trig

    A bird at the top of a tree looks down on a field mouse at an angle of depression of 65°. If the field mouse is 30 meters from the base of the tree, find the vertical distance from the ground to the bird’s eyes. Round the answer to the nearest tenth.

    asked by Anonymous on September 18, 2014
  8. business calculus

    the total cost of producing x units of toys is C(x)=110-4x+〖.02x〗^2. a.find the marginal cost b. if 50 toys are manufactured, what is the rate of change of the total cost? c.what is the amount in peso of the actual cost of manufacturing the 51st toy?

    asked by ma.gelifer on April 9, 2013
  9. Physics

    A skater with an initial speed of 7.6 m/s is gliding across the ice. Air resistance is negligible. The coefficient of kinetic friction between the ice and the blades is 0.1. a) Find the acceleration caused by kinetic friction and b) how far will the skater

    asked by Samantha on October 22, 2009
  10. Calculus

    Suppose that a population of bacteria triples every hour and starts with 700 bacteria. (a) Find an expression for the number n of bacteria after t hours. n(t) = ? (b) Estimate the rate of growth of the bacteria population after 1.5 hours. (Round your

    asked by Alex on November 3, 2009
  11. guidance and dicipline

    ms wigg find that a two year old billy is throwing a tantrum because james will not share his tricycle with him. billy tantrum is likely due to his immaturity and a. physical immaturity b. cognetive immaturity c. undeveloped communication ability d.

    asked by siulaniperez on March 4, 2015
  12. Chemistry

    Calculate the work, in kJ, done when 126 g of tin dissolves in excess acid at 25.0˚C and 1.00 atm. Assume Ideal Gas behavior. Sn(s) + 2 H+(aq) → Sn2+(aq) + H2(g) I basically need to know how to find the change in volume since work=-pressure*volume

    asked by Carol on November 2, 2015
  13. physics

    Two conductors are made of the same material and have the same length. They each have circular cross sectional areas. The ratio of their radii is 2:1. they carry the same current. What is the ratio of the electrical potential across their lengths? i know

    asked by bobby on April 22, 2009
  14. Math

    A rectangular field is to be fenced in on four sides with a fifth piece of fencing placed Parallel to one of the shorter sides, so that the field is split in two parts. If 1600 m of fencing is available, find the largest possible area for this

    asked by Alex on June 12, 2018
  15. Physics(Please help)

    1) A force vector has a magnitude of 579 newtons and points at an angle 43o of below the positive x axis. Find the x scalar component and the y scalar component of the vector? For the x component I did 579cos(43) = 423.45 N. Is this correct? For the y

    asked by Hannah on May 25, 2012
  16. Math

    Fernando surveyed a group of people to find their shoe size and the number of children in their family. He graphed the ordered pairs (shoe size, number of children) for each person. Which of the scatter plots most likely represents his graph?

    asked by Curly Cue on May 31, 2018
  17. algebra 2

    The pH of a solution is given by the formula pH = -log H+ , where H+ is the concentration of hydrogen ions in moles per liter in the solution. Use this formula to solve the problem. Round answer to one decimal place if necessary. Find the pH of a sample of

    asked by jay on July 14, 2011
  18. algebra word problem

    To remodel a bathroom a contractor Charles $25 er hour plus material costs, which amount to $3825. Therefore, the total cost to remodel he bathroom is given by f(x)=25x+3825 where x is the number of hours the contractor works. Find a formula for f^-1(x).

    asked by Anonymous on April 4, 2013
  19. Physichs

    A pedestrian is running at his maximum speed of 6.0m/s to catch a bus stopped by a traffic light. When he is 25m away from the bus the light changes and the bus accelerates uniformly at 1.0m/s^2. Find either (a) how far he has to run to catch the bus or

    asked by Sebastian on September 18, 2011
  20. statisics

    The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected salary for an engineer with 45 years of experience. Round to the

    asked by Anonymous on April 19, 2010
  21. english

    My teacher is giving our classroom books and our assignment is to the find the time period of the book. My book is Death of the Sales man and it was created on 1949, so the time period would be that it was created during World War 2, Berlin Airlift?

    asked by question on December 31, 2017
  22. Physics

    An object moving with uniform acceleration has a velocity of 13.0 cm/s in the positive x-direction when its x-coordinate is 2.73 cm. If its x-coordinate 2.95 s later is −5.00 cm, what is its acceleration? cm/s^2 Express the position of the object in

    asked by Ken on March 21, 2018
  23. math

    Suppose the mean length of time that a caller is placed on hold when telephoning a customer service center is 23.8 seconds, with standard deviation 4.6 seconds. Find the probability that the mean length of time on hold in a sample of 1,200 calls will be

    asked by daniel on February 21, 2019
  24. college

    Electric fields are vector quantities whose magnitudes are measured in units of volts/meter (V/m). Find the resultant electric field when there are two fields, E1 and E2, where E1 is directed vertically upward and has magnitude 96 V/m and E2 is directed

    asked by Anonymous on April 28, 2010
  25. Physics

    A train moving with constant velocity travels 190 north in 14s and an undetermined distance to the west. The speed of the train is 36m/s. Find the direction of the train's motion relative to north. How far west has the train traveled?

    asked by Chelsea on February 7, 2013
  26. Physics

    A bucket of mass 1.70 kg is whirled in a vertical circle of radius 1.50 m. At the lowest point of its motion the tension in the rope supporting the bucket is 20.0 N. 1) Find the speed of the bucket. 2) How fast must the bucket move at the top of the circle

    asked by Anonymous on December 5, 2009
  27. algebra

    Suppose you work in a clothing store. Each week you earn $250 plus a commission equal to 2.5% of your sales. This week your goal is to earn no less than $350. Write and solve an inequality to find the amount of sales you must have to reach your goal.

    asked by shan on November 2, 2011
  28. Grade 12 Biology

    I am confused about this question, and can't find anything on the internet, anyone care to explain? Why is the tertiary structure of an enzyme, such as amylase, so important? An enzyme is a protein, so is it really asking why is this stage important? And

    asked by MileyCyrus on February 17, 2008
  29. english

    can someone help me with this question?At several points in Sherman Alexie's "Indian Education" essay, Alexie uses comparison and contrast. Locate at least two examples and explain what each contributes to the essay? I just don't see a point of comparison

    asked by kayla on February 7, 2009
  30. math

    The number of streetlights in a town is growing linearly. Four months ago (n = 0) there were 130 lights. Now (n = 4) there are 146 lights. If this trend continues, a. Find an explicit formula for the number of lights in month n b. How many months will it

    asked by Anonymous on July 17, 2012
  31. physics

    The drawing shows a chain-saw blade. The rotating sprocket tip at the end of the guide bar has a radius of 1.4×10-2 m. The linear speed of a chain link at point A is 3.0 m/s. Find the angular speed of the sprocket tip in rev/s.

    asked by ram on October 22, 2014
  32. English

    Well in english we have to write an essay which deals with dramatic irony between two stories. The stories are One thousand dollars and by the waters of babylon. WEll my teacher said to make it a compare and contrast essay and im not sure how to find the

    asked by Keirstan on December 2, 2011
  33. Geometry

    Find x in terms of y e-zgeometry. com/pow/pictures/25.gif It would be helpful if the verticies had letters at the site you left: http://www.e-zgeometry.com/pow/pictures/25.gif The two smaller triangles are similar to the larger one (the altitude y)

    asked by Seth on January 30, 2007
  34. Math

    A person invested $7900 for one year, part at 5%, part at 11%, and the remainder at 15%. The total annual income from these investments was $965. The amount of money invested at 15% was $500 more than the amounts invested at 5% and 11% combined. Find the

    asked by Angela on November 13, 2016
  35. Science , Biology

    Cretaceous extinction... The evidence tells you that “overwhelming evidence suggests that the extinction was caused by a 10-km-diameter asteroid that struck Earth.” Suggest at least three lines of evidence that might have led scientists to this

    asked by Woo on November 27, 2016
  36. Trigonometry

    A satellite orbiting the earth in a circular path stays at a constant altitude of 100 kilometers throughout its orbit. Given that the radius of the earth is 6370 kilometers, find the distance that the satellite travels in completing 70% of one complete

    asked by Karen on December 3, 2012
  37. physics

    A 2.7-kg box is released on a horizontal surface with an initial speed of 2.9 m/s. It moves on the surface with a deceleration of 0.27 m/s^2. Calculate the kinetic friction force on the box. I couldn't find an example of this anywhere but...is it:

    asked by Jamie on May 25, 2009
  38. calculus

    Me again. One last question! Again, just needed my answer verified with any explanation or walk-through. The position of a particle moving along a coordinate line is s=√(3+6t) with s in meters and t in seconds. find the particle's acceleration at t=1

    asked by kailey on November 24, 2014
  39. Chem

    Balance the chemical equation given below, and determine the number of grams of MgO needed to produce 15.0 g of Fe2O3. _MgO(s)+_Fe(s)->_Fe2O3(s)+_Mg(s) 1. a. 11.4 g 2. b. 3.78 g 3. c. 1.26 g 4. d. 0.0877 g I got equation balanced 3,2,1,3 just having

    asked by Mark on April 24, 2010
  40. math

    The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected salary for an engineer with 45 years of experience. Round to the

    asked by molly on June 19, 2010
  41. physics

    A 2.1 multiplied by 103-kg car starts from rest at the top of a 5.8-m-long driveway that is inclined at 22° with the horizontal. If an average friction force of 4.0 multiplied by 103 N impedes the motion, find the speed of the car at the bottom of the

    asked by Anonymous on September 30, 2013
  42. physics

    A bucket of mass 2.20 kg is whirled in a vertical circle of radius 1.15 m. At the lowest point of its motion the tension in the rope supporting the bucket is 28.0 N. a) Find the speed of the bucket. b)How fast must the bucket move at the top of the circle

    asked by jess on November 4, 2010
  43. physics

    a car moving on a straight road with a speed of 20m/s. at t=0 the driver of the car applies the breaks after watching an obstacle 150m ahead. after application of breaks, the car retards with 2m/s^2. find the position of the car from the obstacle at t=15s.

    asked by pavatharani on July 3, 2011
  44. Physics

    A person exerts a horizontal force of F = 179 N in the test apparatus shown in the drawing. (h = 0.35 m.) Find the horizontal force M that his flexor muscle exerts on his forearm. The distance between the fexor muscle and the elbow joinf is .051 m

    asked by Ali on April 4, 2008
  45. Geometry

    A museum was designed without windows, but a truncated cylindrical skylight lightens the building. In the development of this, the architect has areas where the angles formed at junctures are vertical angles. If a pair of vertical angles measures 5x - 54

    asked by Chris on October 31, 2012
  46. physics

    An aircraft flying at a horizontally height of 8000m above the ground at 200 metre per second drops a bomb on it's target on the ground. Find the angle between the vertical and the line joining the aircraft and the target immediately the bomb is released.

    asked by ali on July 12, 2016
  47. maths

    A TRENCH OF 2.5 MTS AND DEPTH OF 2 MTS IS DUG OUTSIDE AN RECTANGLE FEILD OF LENGTH OF 250 MTS AND BREADTH OF 200 MTS. THE MUD FROM THE TRENCH WAS EVENLY DISTRIBUTED IN THE RECTANGULAR FIELD. FIND THE INCREASE IN THE HEIGHT OF THE FIELD.

    asked by Anonymous on April 15, 2012
  48. Physics

    Two blocks M1 and M2 are connected by a massless string that passes over a massless pulley as shown in the figure. M1 has a mass of 8.25 kg and rests on an incline of 73.5°. M2 rests on an incline of 15.5°. Find the mass of block M2 so that the system is

    asked by meg on October 14, 2015
  49. Calc

    A rectangular package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section) of 90 inches (see figure). Find the dimensions of the package of maximum volume that can be sent. (Assume the cross section is

    asked by James on November 3, 2016
  50. math 5th grade

    Victoria has 2 pounds of flour, she uses 2/5 for pizza and 3/10 for bread. Find the weight of the pack of flour that is left..Express in decimal answer. 32 ounces of flour is what she has she uses 2/5 x32=64/5=12and4/5=12.8-32=19.2remaining flour she then

    asked by mary on November 21, 2015
  51. math

    A tennis ball is dropped from a height of 7 ft. If the ball rebounds 2/3 of its height on each bounce, how far will the ball travel before coming to rest? (Find the total distance that the ball will travel before it stops bouncing.) i need help i don't

    asked by gisela on September 29, 2014
  52. math

    A function machine accepts inputs as ordered pairs. The Components of the order pairs are natural numbers and the first components is the length of the rectangle and the second componet is the width . The given machine computs the perimeter. Find the out

    asked by EMMA on November 13, 2014
  53. Differential Equations

    For the following initial value problem: dy/dt=1/((y+1)(t-2)) a)Find a formula for the solution. b) State the domain of definition of the solution. c) Describe what happens to the solution as it approaches the limit of its domain of definition. Why can't

    asked by Erica on January 31, 2013
  54. physics

    An aircraft flying at a horizontally height of 8000m above the ground at 200 metre per second drops a bomb on it's target on the ground. Find the angle between the vertical and the line joining the aircraft and the target immediately the bomb is released.

    asked by ali on July 12, 2016
  55. PHYSICS

    Ana run in a circular path. The dimension of the circular path is r = 10m , she finished it in 20 seconds. Find his speed, distance, displacement and velocity. 10m east (starting point) and 10 m south (finish point)

    asked by SUZI on July 23, 2014
  56. geometry

    The trapezoids are similar. The area of the smaller trapezoid is 564m^2. Find the area of the larger trapezoid to the nearest whole number. The smaaler trapezoid is 24m, and the larger trapezoid is 57m. Possible answers: 576m^2--3,249m^2--3,181m^2--14m^2

    asked by kevin on April 8, 2012
  57. algebra am i right

    Find the volume of a right circular cylinder whose base has an area of 6 cm^2 and whose height is 17 cm. [A] 153ð cm^3 [B] 612ð cm^3 [C] 102 cm^3 [D] 153ð cm^2 [E] None of these i think its C Please show your work. That's the right answer, but we'd like

    asked by cassii on September 27, 2006
  58. Algebra I

    ...excess information.... The historical society tells him that furniture similar to his has been appreciating in value at 10% per year for the last 20 years and that his furniture could be worth $10,000 now. Is my expression 10,000(1+.1)^x? If so, I have

    asked by Cat on March 9, 2009
  59. algebra

    Mrs Lee was given $1200 every month for the household expenses.She used 17/24 of it to buy food for the family, 5/7 of the remainder for clothes and other expenses.She put the remaining money into the bank as savings for the family.Find the amount she put

    asked by MTH on February 7, 2008
  60. Physics

    you lift a 10 N physics book up in the air a distance of 1m at a constant velocity of .5m/s. What is the work done by the weight of the book? a) +10 J b)-10 J c) +5 J d)-5 J 10 N is the force of gravity and to find work you do this: W=F_g(change in

    asked by Tammy on October 10, 2007
  61. Physic II

    A flat disk 1.0 m in diameter is oriented so that the plane of the disk makes an angle of π/6 radians with a uniform electric field. If the field strength is 491.0 N/C, find the electric flux through the surface. Please show step by step

    asked by John on February 2, 2014
  62. physics

    A ball of mass m is rotated at constant speed v in a vertical circle of radius r as shown below. Find the tension in the cord when the ball is at position A and position B. (Position a is in top of the wheel, position B is on the bottom of the wheel, 180

    asked by pakilina on November 25, 2011
  63. Math

    Find the surface area of the prism, The right side length is 5m the bottom side lenght is 6m and the actual bottom is 13m. Answers are, A 48 to the second power. B 346 to the second power. C 780 to the second power. D 195 to the second power. ** Please

    asked by Likewhat?! on March 28, 2019
  64. statistiss

    The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected salary for an engineer with 48 years of experience. Round to the

    asked by john on June 17, 2010
  65. statistics

    4.90. Defective Equipment. A piece of electronic eqipment contains six computer chips, two of which are defective. Three chips are selected at random, removed from the piece of equipment, and inspected. Let x equal the number of defectives observed, where

    asked by Anonymous on October 17, 2010
  66. COM/220

    I need a little help..I have to find a good argumentative thesis statement. My goal is to prove that cyber-bullying is worse than regular bullying. I have tried several different times to come up with a good statement that is argumentative but to no avail

    asked by Katherine on April 16, 2010
  67. Physics

    A 25 kg box is along a horizontal floor and a force of 400 N pushes the box with an angle of 50 deg with the horizontal. Starting from rest, the box achieves a velocity of 2 m/s in a time of 4 seconds. Find the coefficient of sliding friction between box

    asked by JOSH on August 22, 2014
  68. physical science

    When iron metal reacts with oxygen, the reaction can form Fe2O3. Write a balanced chemical equation for this reaction, and find the number of moles of oxygen that are needed to form 6 mol of Fe2O3. Show your work.

    asked by Megan on January 7, 2013
  69. Statistics

    I am having trouble with the following problem: P(Z > +1.34) Would someone help me? If you've already normalized the number you're interested in, then look up in your tables (the normal distribution tables) to find 1.34 standard deviations and look for the

    asked by Wendy on October 19, 2006
  70. pROBABILITY AND STATISTIC..HELP...................

    a missile protection system consists of n radar sets operating independently each with probability .9 of defecting an aircraft entering a specified zone.all radar sets cover the same zone.if an airplane enters the same, find the probability that it will be

    asked by Rrjey on February 26, 2013
  71. Statistics

    A local fire station receives an average of 0.5 rescue calls per day. Find the probability that on a randomly selected day, the fire station will receive fewer than two calls. (Round your answer to the nearest thousandth.)

    asked by Me on July 13, 2012
  72. statistics

    Suppose you have information that the average stress score of students in online activities is 13.15. Using Minitab, compute a one sample t-test to find out whether the stress scores reported by your sample are significantly different from those of the

    asked by joy on February 19, 2014
  73. Math Help Respond To @Steve

    So for this question: The number of bacteria present in a culture is given by the following model B=1000e^0.276t; where t= time in minutes. Find the time required to have 6000 bacteria present. Then, round your answer to the nearest tenth of a minute;

    asked by Micki on November 14, 2014
  74. math

    Dirk Nowitzki of the Dallas Mavericks has a 87.7% career free throw record. Assuming that free throws represent independent events, find the probability of Nowitzki a. Getting 3 free shots in a row b. Missing exactly one of 3 free shots

    asked by Shay on July 10, 2011
  75. Physics

    A 125-kg sled is dragged by a team of dogs a distance of 2 km over a horizontal surface at a constant velocity. If the coefficient of friction between the sled and the snow is 0.15, find (a) the work done by the team of dogs and (b) the energy lost due to

    asked by John on June 24, 2012
  76. Physics!

    HELP!!! A box rest on an incline making a 34 angle with the horizontal. It is found that a parallel force to the incline of at least 240 N can prevent the box from sliding down the incline. If the weight of the box is 800 N, find the coefficient of static

    asked by Randy on October 7, 2017
  77. College Algebra

    Jim wants to build a rectangular parking lot along a busy street but only has 2,700 feet of fencing available. If no fencing is required along the​ street, find the maximum area of the parking lot. I got the answer 911.25 which was incorrect I'm not sure

    asked by Angelica on March 4, 2017
  78. statistics

    Given that x is a normally distributed random variable with a mean of 60 and a standard deviation of 10, find the P(56 < x 56.)Please write your answer in a complete sentence.

    asked by Rachel on July 23, 2012
  79. PRE-CALC

    A large painting in the style of Rubens is 3 feet longer than it is wide. If the wooden frame is 12 in wide and the area of the picture frame is 208 ft^2, find the dimensions of the painting. So I know the width would be x and the length would be x+3 if I

    asked by Muffy on October 16, 2009
  80. physics

    A 2 kg block situated on a rough incline surface (θ= 37o) and is connected to a spring with k = 100 N/m. The block initially at rest. The block moves 20 cm down the incline before stops. Find the coefficient of friction between the block and the surface.

    asked by charley on September 6, 2012
  81. statistics

    20. Supply and Demand Let the supply and demand functions for butter pecan ice cream be given by p=s (q) = 2/5q and p= d (q) = 100 – 2/5 q where p is the price in dollars and q is the number of 10- gallon tubs. a. Graph these on the same axes. b. Find

    asked by Sean on November 5, 2010
  82. physic

    A person stands on a bathroom scale in a motionless elevator begins to move,the scale briefly reads only 0.75 of th person regular weight(means Fn=0.75mg).Calculate the acceleration of the elevator,and find the direction of acceleration.

    asked by noah on July 10, 2011
  83. Math

    Shaahikala needs Rs.7000 after 15 weeks to send her daughter to school. She saved Rs.150 in the 1st week and raises by Rs.50 every succeeding week. Find whether she will be able to send her to school after 15 weeks? What value is created by the above

    asked by Megha on March 18, 2016
  84. year 7 music

    i know it has been asked many times over the last few days but i need to explain ternary form and what is played / song in this structure. i have found a song twinkle twinkle little star but i don`t know how to explain how it is played in this way.i have

    asked by nicky on January 29, 2008
  85. Science

    "current or proposed methods for implementing nuclear power plants" I'm researching different things about nuclear power and this is the next category. I'm not quite sure what it means, please let me know. Also, I need three pieces of info. to go under

    asked by Ashley on December 10, 2009
  86. Math

    The bases of trapezoid ABCD are AB and CD. Let P be the intersection of diagonals AC and BD. If the areas of triangles ABP and CDP are 8 and 18, respectively, then find the area of trapezoid ABCD. I'm so confused... please help! I was thinking that if I

    asked by Geometry HELP on November 29, 2015
  87. Math

    A triangle is cut from a rectangle. The height of the triangle is half of the unknown side length ss. The area of the shaded region is 84 square inches. Write an equation you can use to find the side length ss. An equation is __________ =84 Help me with an

    asked by Anonymous on March 6, 2017
  88. physics

    A particle leaves its initial position x0 at time t=0 moving in the positive x direction with speed v0 but undergoing acceleration of magnitude (a) in the negative x direction. Find expressions for a) the time when it returns to the position x0 and b) its

    asked by princessw on January 30, 2012
  89. Math-Calculus

    Please Help D:. Min/Max Problems 4. Joan has 50ft of interlocking stone available of fencing off a flower garden in the form of a circular sector. Find the radius of the circle that will yield a flower garden with the largest are if Joan uses all the

    asked by Cara on March 6, 2013
  90. Probability, Random Variables, and Random Process

    A zero-mean Gaussian random process has an auto-correlation function R_XX (τ)={■(13[1-(|τ|⁄6)] |τ|≤6@0 elsewhere)┤ Find the covariance function necessary to specify the joint density of random variables defined at times t_i=2(i-1),i=1,2,…,5.

    asked by Rakesh on November 2, 2017
  91. Probability

    Let X be a random variable that takes non-zero values in [1,∞), with a PDF of the form fX(x)=⎧⎩⎨cx3,0,if x≥1,otherwise. Let U be a uniform random variable on [0,2]. Assume that X and U are independent. What is the value of the constant c? c= -

    asked by qwerty on April 21, 2015
  92. statistics

    calculate the correlation for data set A. Data Set A: xi = 65, 55, 50, 45, 35 yi= 44, 52, 68, 20, 36 I know how to find the mean, variance, standard deviation, and z-score. The part I am having trouble finding is the ZxiZyi. In the chart that I have to

    asked by Hannah on July 6, 2011
  93. statistics

    Can someone help me with this questions. Find the variance for a given data. Rpund your answer to one more decimal place then the original data. Compute the variance. Jeanne is currently taking college zoology. The instructor often gives quizzes. On the

    asked by natalie on August 28, 2007
  94. math

    Dirk Nowitzki of the Dallas Mavericks has a 87.7% career free throw record. Assuming that free throws represent independent events, find the probability of Nowitzki a. Getting 3 free shots in a row b. Missing exactly one of 3 free shots

    asked by anonymous on July 11, 2011
  95. Sci

    Does my poem below have these things "explain why it is where it is on the periodic table, what element(s) it might combine with to make a compound/molecule, and finally, WHY it would interact with that other element" Here is the Poem Below: “What’s

    asked by Anonymous on December 30, 2010
  96. Sci Plzz See This Post

    Does my poem below have these things "explain why it is where it is on the periodic table, what element(s) it might combine with to make a compound/molecule, and finally, WHY it would interact with that other element" Here is the Poem Below: “What’s

    asked by Anonymous on December 30, 2010
  97. History

    ) How did the federal government use tariffs in the late 1800s to help the United States grow into an industrial power? A) to tax U.S. industry as a source of federal income B) to convince other nations to buy newly available U.S. products C) to support

    asked by Abby on October 24, 2015
  98. Business Finance

    Immediate help needed for the following two questions: 15-12A. (Break-even point) You are a hard-working analyst in the office of financial operations for a manufacturing firm that produces a single product. You have developed the following cost structure

    asked by GypsyQueen on October 30, 2011
  99. social studies essay

    Need help w/7 pg paper debating the pros and cons of year round schools. I've found the basic reasons for each side, but I find it's too difficult to write about both sides in one paper. Can you help me get started and give me some kind of outline to

    asked by Forrest on April 15, 2008
  100. business english

    during a group meeting when they are each eading a draft of their formal report, Madiha and Anne realize the soetimes they have used the word "there" corretly and soetime the word shoudl be "their". They use their word processor's "find" feature to help

    asked by cindy on July 6, 2012

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