1. Psychics

    What is the electric potential between two points 5.0 centimeters apart if the electric field between those points is a constant 250 Newtons/meter?
  2. Calculus

    The graph A(x) has points (-3,0), (0,-2), (1,0) and (2,3). If C(x) is defined by C(x)=A(2x+3), then what is the domain and range of C and how would the graph of C(x) look like? Also, is there any way to find what the actual equation of A(x) is with the
  3. Math

    Don't understand how to solve this problem: 12. A, B, C, and D are points on a line, and the lengths of the line segments are: AB = 12, BC = 4, CD = 7, and DA = 15. Which of the following is a possible order for the points? A.A,B,C,D B. A,C,D,B C. A,D,C,B
  4. chemistry

    Why do molecular compounds have low melting points and low boiling points relative to ionic substances?
  5. Probability #1

    Please check my answers. Thank you! Another card game. In a new card game, you start with a well-shuffed full deck and draw 3 cards without replacement. If you draw 3 hearts, you win $50. If you draw 3 black cards, you win $25. For any other draws, you win
  6. Reading

    Rebecca wondered if the type of papre used to make a paper airplane would affect the distance the plane flew.She hypothesized that an airplane made of light weight paper would fly farther than an airplane made of heavier paper.Rebecca made 5 airplanes.They
  7. physics

    In the figure: an electron is projected along the axis midway between the plates of a cathode-ray tube with an initial velocity of 2 x 107 m/s. The uniform electric field between the plates has an intensity of 20,000 N/C and is upward. (a) How far below
  8. Math

    Five children play a game in which players either gain 1 point or lose 1 point. After several games, the number of points won is equalto the number of points lost. If no two children have the same final score and the overall winner has fewer points than
  9. Math - Simple rational functions (check)

    Consider the function f(x) = x/(x-1) Are there any turning points? Explain how this could help you graph f(x) for large values of x? Ans: turning points is another word for checking the concavity, and therefore i find the second derivative and equate it to
  10. MATH

    For the floor plans given in exercise27, determine whether the side through the points (2, 3) and (11, 6) is perpendicular to the side through the points (2, 3) and (-3, 18). Compute the slopes of the two lines. If the product of the slopes is -1, then te
  11. math!

    1. in a basketball game, mike scored 20% of the team's points. if mike scored 22 points, how many points did the team score as a whole? - is the answer 110 pts 2. sports authority was having a sale. all their merchandise was 20% off the original price. the
  12. Math (Analytic Geometry)

    1. Find the equation of the set of all points P(x,y) that is equidistant from (-3,0) and (3,-5). 2. Find the equation of the set of all points P(x,y) that is twice as far from (-8,8) as from (-2,2). 3. Find the equation of the set of all points P(x,y) such
  13. math

    An invoice is dated August 29 with terms of 4/15 EOM. What is the discount date? (Points : 2.5) 12. What is the net date for the scenario in the previous question? (Points : 2.5)
  14. Algebra 2

    What's the formula given three points to come up with the quadratic equation were your give points (x1, y1 ) (x2, y2) (x3, y3) I remember seeing some really long equation were you just plug the numbers into it and get your answer but I have forgotten the
  15. Math

    Sam ranks movies on a scale of 1-100. If he adds 2 points to each movie in his collection, and the range of the ranking was 54, what is the range when the 2 points are added ?
  16. math

    n points are arranged on a cirlce and all the chords drawn. Let I(n) be the number of intersection points inside the circle if no 3 chords are concurrent. Find a formula for I(n).
  17. Physics

    When a charge of -4 x 10 to the minus 3 coulombs is moved between two points in an electric field, 0.8 joules of work are done on the charge. The potential difference between the two points is 300 V.
  18. Math

    Gerrit attempted 54 free throws and made 27. What is the probability in a two attempt free - throw situation that he will make 0 points ? 1point ? 2 points ?
  19. math

    n points are arranged on a cirlce and all the chords drawn. Let I(n) be the number of intersection points inside the circle if no 3 chords are concurrent. Find a formula for I(n).
  20. Math

    Can some one explain the step of the following: 1. Graph the system of Inequalities (What will be the points) y>= -4 x>=5 2. Solve by the substitution method 5x+3y= 7 x=59-7y 3.Graph the equation using the slope and the y-intercept (What are the
  21. math

    sheldon has scored six eighteenths of points in a basketball game. how can you use division to simplify the fraction of the points he score? what is six eighteenths in simplest form?
  22. algebra

    The mean score on Mr. Pascal’s first semester exam for his 28 students is 73 points. If he removes the lowest score of 19 points, what is the adjusted class average (arithmetic mean)?
  23. Alg 1

    The mean score on Mr. Pascal’s first semester exam for his 28 students is 73 points. If he removes the lowest score of 19 points, what is the adjusted class average ? (arithmetic mean)
  24. english

    9. What kind of complement is the underlined word? Fill the bucket with potting soil. (Points: 5) direct object indirect object predicate nominative predicate adjective 10. What kind of complement is the underlined word? This jigsaw puzzle is too easy for
  25. English expression

    A. What is the reading text about? a. School Introduction b. Family Introduction c. Self Introduction B. Draw a line between what we can know from the reading text as in the example. And referring the reading text, fill in the blanks. O. What is her
  26. Math - distances between two planes

    Find the distances between planes. plane 1: 2x-y-z-1=0 plane 2: 2x-y-z-4=0
  27. Algebra 2

    Jimmy is wanting to fence a rectangular area of his land along Elm Creek. He will only need to fence 3 sides. If Jimmy has 2000 ft of fencing and wants to enclose the largest possible area, determine the dimensions of the rectangular plot. Hint: Write an
  28. maths

    Two planes take off from the same airport at the same time. One plane travels on a bearing S 12degreeW at 400 miles per hour. The other plane travels on a bearing N 75degreeE at 300 miles per hour. How far are the planes from each other 3 hours after
  29. physics

    a 100Nforce was applied to pull a 20 kg box up on a rough inclined plane that makes ans angle of 30. if the applied force makes an angle of 20 with the inclined plane and if the coefficient of friction was 0.4 when the accleration of the box is 3m/s^2
  30. A01 and A02 points

    Hi, i'm a university student studying Religion and Education. I have an assignment where i have to build a teacher pack, with resources for the lesson, i have to write a 2000 word evaluation of the pack. its for an A-level class studying Sikhism and their
  31. physics

    An Alaskan rescue plane traveling 37 m/s drops a package of emergency rations from a height of 149 m to a stranded party of explorers. The acceleration of gravity is 9.8 m/s 2 . Where does the package strike the ground relative to the point directly below
  32. physics

    1.Three masses, m1, m2, and m3, are lying on a plane without friction and are connected by a string. A force F is applied to the mass m1 so that the whole system accelerates along a straight line. What is the tension of the string T between the masses m1
  33. maths

    The bearing of two points Q and R from a points P are 030 degree and 130 degree respectively. If PQ is12cm and PR is 5cm, find QR
  34. math

    Top player's scoring average changes from 20 points per game to 24 points per game. What is the percentage of increase. 1:20% 2:16.7% I think 2??
  35. calculus

    suppose the set of points have the following coordinates:(-2,3),(4,-4),(2,-3). please calculate the moment of this set of points about the x-axis and also about the center.
  36. Math

    This is going to seem like a silly question, but I have to round points that fall on a graph to the nearest 1.25. Some of the points are 4.75, 4.5, 4.25, etc. - what would these round to? I just want to make sure I'm doing this right!
  37. math 8th grade

    22 points in game 1,18 points in game2, 20 in game 3 what was their mean score for these 3 games i answered 20 is that right
  38. Calculus A

    Find all relative extrema and points of inflection for the following function... h(X)= X^2+5X+4/ X-1 min= max= inflection points=
  39. Math: Combinations

    There are 20 points all in one straight line and 15 others in a parallel line. How many possible triangles having these points as vertices can be formed?
  40. math

    in a basketball game, Steve scored 7 points than bill. together they scored 39 points. Find the score of each.

  42. Math

    A map is drawn to a scale of 1:3000.two points on the map are 9.5cm apart .what is the actual distance between the points?
  43. maths

    given the curve y=2x/(1+x^2)^2 (a) prove that dy/dx =2(1-x^2)/(1+x^2)^2 (b) find the coordinates of the stationary points and state the nature of the stationary points.

    Triangle ACE is a circumscribed triangle. Points B, D and F are the points of tangency. If AC= 16 and AE is 9 cm and CE = 15 cm . Find AD, FE and CD HELP PLEASE VERY URGENT
  45. Math

    Fine the max or min points and the points of inflection for the function y=3x^4 - 10x^3 - 12x^2 + 12x - 7 Can someone help me!!!
  46. Math

    your child plays basketball your child scored points in the following 5 games: 8 10 4 6 6. What are the average points per game
  47. Math

    If the population standard deviation is   8, how large a sample is necessary to have a standard error that is: a. less than 4 points? b. less than 2 points? c. less than 1 point?
  48. Math

    Given the points (6,-3) (-4,2): Find the equation of a line that passes through the origin and is parallel to the line defined by the points. Please help me...thank u so much
  49. Maths

    Draw a rectangle of perimeter 30cm and length of sides in the ratio 1:2.draw two more rectangles of the same perimeter with the length of sides in the ratio 2:3 and 3:7 compute the areas of all three rectangles?
  50. Physics

    A plane drops a hamper of medical supplies from a height of 5210 m during a practice run over the ocean. The plane’s horizontal velocity was 133 m/s at the instant the hamper was dropped. The acceleration of gravity is 9.8 m/s^2. What is the magnitude of
  51. Math

    To win a trivia game, Nevan must score 90 points. Each correct answer is worth 1 3/4 points, and each incorrect answer is worth −1/4 points. If he gets 58 questions correct and 22 questions incorrect, does Nevan win? How many points does he score?
  52. elementary

    Using each of the shapes in the box, draw a shape that is worth $6.95. Triangle: $.30 (cents) square: $1.25 rectangle: $1.00 I don't understand. Do they want a pattern of shapes? How would I draw a shape that has more than one of the shapes, triangle,
  53. Chemistry

    Draw the structural formulas of the expected products in the two following hydrolysis reactions. Breakdown of a Lipid reactions are glycerol and 3 fatty acids Draw the structural of the expected products in the two following hydrolysis reactions.
  54. Statistics

    You are shown a coin that its owner says is fair in the sense that it will produce the same number of heads and tails when flipped a very large number of times. Suppose you decide to flip a coin 100 times. a. What conclusion would you be likely to draw if
  55. Chemistry

    I had a lab about calorimetry where we would have a temperature probe in a calorimeter cup and then pour hot water into it to form a mixture until our graph (automatically plotted from the data that's recorded by the computer). Now for the report they ask
  56. Geometry (math)

    Suppose line p is perpendicular to line s and line q is perpendicular to line s. are p and q parallel under all circumstances? Draw a figure to illustrate your answer . I doubt if we can post pictures on this,because my question asks to draw a figure.I
  57. Geometry

    Prove that the tangents to a circle at the endpoints of a diameter are parallel. State what is given, what is to be proved, and your plan of proof. Then write a two-column proof. Hint draw a DIAGRAM with the points labeled. Can some one please check for me
  58. Math

    A plane was flying at an altitude of 30,000 feet when it began the descent toward the airport. The airplane descends at a rate of 850 feet per minute. a. What is the function rule that describes this situation? b. What is the altitude of the plane after it
  59. physics

    a plane flys 350 km south along a straight path with an average velocity of 125 km/h to the south. the plane has a 30 minute layover and then travels 220 km south with an average velocity of 115 km/h to the south. what is the average velocity of the trip
  60. Calculus

    For y=(1/4)x^4-(2/3)x^3+(1/2)x^2-3, find the exact intervals on which the function is a. increasing b. decreasing c. concave up d. concave down Then find any e. local extreme values f. inflection points --- I thought it'd be better to find extreme values
  61. classroom instruction

    • Plan a science experiment. In your paper, address the following points: o List the equipment and materials to be included in the science kit. o Explain what safety precautions are needed. o Outline the step-by-step procedures for the experiment. o
  62. physics

    Displacement vector points due east and has a magnitude of 2.69 km. Displacement vector points due north and has a magnitude of 7.91 km. Displacement vector points due west and has a magnitude of 8.64 km. Displacement vector points due south and has a
  63. Grambling

    Displacement vector points due east and has a magnitude of 4.58 km. Displacement vector points due north and has a magnitude of 6.25 km. Displacement vector points due west and has a magnitude of 8.65 km. Displacement vector points due south and has a
  64. English

    Here is the second part of my summary. Can you please check if everything is OK now? By the way, do you say "On which carriage or in which carriage is your seat?" Which bus number goes to the city centre OR Which number bus goes ....? 1) Go into the
  65. Calc III

    Find the absolute maximum of the function f(x,y) = x^2 + 4y on the set of points (x,y) that satisfy x^2 + y^2 < or = to 25. I understand that you have to check the endpoints and find critical points, but I cannot solve this. Thank you.
  66. geometry

    An equilateral triangle ⌂ABC has two of its vertices below the x-axis, has the third vertex C above the x-axis, and contains the points A=(0,0)and B=(1,0) on its sides. How long is the path traced out by all possible points C, to two decimal places?
  67. business math please help me

    An invoice is dated August 29 with terms of 4/15 EOM. What is the discount date? (Points What is the net date for the scenario in the previous question? (Points : 2.5)
  68. Math

    determining minimums and maximums Approximate the local minimum points and local maximum point of the function g(x)= x^4-5x^3+ 7x^2-3x -5 using that the slope of a tangent line at these points is zero/
  69. Math11U

    A surveyor in an airplane observes that the angle of depression to two points on the opposite shores of a lake are 32 and 45 degrees, respectively. What is the width of the lake to the nearest metre, at those two points?
  70. physics

    A piece of gold wire is used to form a circular loop of radius 12.3 cm. The wire has a cross-sectional area of 11.1 mm^2. Points A and B are 90.0° apart. Find the resistance between points A and B.
  71. pre algebra

    find a variable and writing and equation and solve. the hoe team scored 80 points and won by 19. How many points did the opposing team make?
  72. physics

    a plane travels 2.5 km at an angle of 35degrees to the ground then changes direction and travels 5.2 km at an angle of 22degrees to the ground. What is the magnitude and direction of the plane's displacement?
  73. Math

    find an equation for a plane parallel to the xy-plane; does not pass through the origin. (I know how you would find the equation if it says passes through a certain point. But I'm confused how to do it if it says does not pass through certain point)
  74. Plane shapes in different positions

    Use plane shapes to finish the puzzle, use the same color to color the shapes that ate alike. -- Some of the shapes are not alike, so do that get colored different colors?
  75. Physics

    Vector A has magnitude of 9.77 units and points due east. Vector B points due north. 1) What is magnitude of B, if the vector A+B points 34.7 north of east? 2) Find magnitude of A+B I am not sure what formulas to use for this. If someone could show me how
  76. Physics

    A block of mass 12 kg starts from rest and slides a distance of 8 m down an inclined plane making an angle of 40◦ with the horizontal. The coefficient of sliding friction between block and plane is 0.4. The acceleration of gravity is 9.8 m/s^2
  77. Physics

    An airplane flying at 120km/h due west moves into a region where the wind is blowing at 40km/h due east. If the plane's original vecotr velocity is Vplane, what is the expression for the plane's resulting velocity in terms of Vplane. a. 1/3
  78. Statistics

    statistics (mean, median, mode): X=3 and the first score is 2 points above and the second score is 4 points above how many points below is the third?
  79. Physics(IMPORTANT)

    An airliner makes an emergency landing with its nose wheel locked in a position perpendicular to its normal rolling position. The forces acting to stop the airliner arise from friction due to the wheels and from the breaking effort of the engines in
  80. Physics

    Instructions: Read the following paragraph carefully. Then use what you know about momentum, work, and energy to answer the following questions. Be sure to show your work. You are a traffic accident investigator. You have arrived at the scene of an
  81. Physics

    Two golf balls of equal size and mass are released simultaneously from the roof of a building. One of the balls has a smooth surface while the other one has grooves on it. They then hit on a hard and horizontal plane on the floor. Assume that the golf
  82. physics

    A rescue plane is flying horizontally at a height of 132 m above the ground. The pilot spots a survivor and releases an emergency kit with a parachute. The kit descends at a constant vertical acceleration of -6.89 m/s2 and the initial plane horizontal
  83. math

    In a game, you draw a card with three consecutive numbers on it. You can choose one of the numbers and find the sum of its prime factors. Then you can move that many spaces on a game board. You draw a card with the numbers 25, 26, 27. Which number should
  84. Physics

    A free fall parachutist reaches a terminal velocity of 150 km/hr when dropped from a plane at a height of 10,000m. Is they terminal velocity going to be greater or smaller if they were dropped from a plane at a height of 10,000m?
  85. Math repost (please check)

    L1=P1(1,3,5) and P2(4,5,2) L2=P4(-1,6,-3) and P3(points not given) a. Find the equations of lines L1 and L2. P3 is the midpoint of L1, that is, u=0.5 at P3. P(u)=P1 + u((P2-P1) 0 which is less than or equal to (u)which is less than or equal to 1. L1= P(u)=
  86. math

    Fixed points of f? f(x) = x^2+13/12x - 1/2 a) use algebra to find the fixed points and classify them. b) use the gradient criterion to determine an interval of attraction for one of the fixed points of f c) find exact values of the 2nd and 3rd terms of the
  87. math

    in chess match one point is scored for a win, half a point for a draw and no point for a loss. If the match score is presently A to B is 3.5 to 1.5. How many games have been played? How could this score have come about between A and B to win, draw ,loss
  88. Maths

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)
  89. prealgebra

    ron lost 10 points seven times playing a video game. He then lost an additional 100 points for going over the time limit. What was the total change in his score?
  90. math-linear algebra

    Determine the standard matrix D of the linear mapping G: R^2--R^2 that first rotates points clockwise through pi/6 radians and then reflects points through the line x_2=x_1
  91. Math

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)
  92. ELA

    this my oral presentaion project in french but my teacher said write in English first. there should be 3 main points and why you choose theese points. 1)help the consumer to make choices what to write for why
  93. math

    you earn 10 points for every coin you collect in a video game. Then you find a start that triples your score. Write an expression for the number of points you earn from the coins
  94. alegebra

    amelia gets 4 points for each correct answer and loses 1 point for each worng answer. One her last quiz she earned 50 points and answered 25 questions. write a system of equations
  95. calculus 1

    The point P(2,-1) lies on the curve y=1/(1-x) If Q is the point (x, 1/(1-x) find slope of secant line. these are the points 1.5 1.9 1.99 1.999 2.5 2.1 2.01 2.01 2.001 when i calculated it i got a negative number 1/(1-1.5)=-2 but the answer is 2. also would
  96. algebra

    hocky teams receive 2 points when they wi and 1 point when they tie. One season, a team won a championship with 65 points. they won 10 more games than tied. how many wins and how many ties?
  97. Calculus 1

    On the graph of f(x) = 8*sin(3pi*x), points P and Q are at consecutive lowest and highest points with P occurring before Q. Find the slope of the line which passes through P and Q. Slope = ? I have tried 48/pi and it didn't work
  98. math

    f(x)=-x^3+3x^2+9x-5 asked to find the stationary points this was my working and i don't know if it is correct f dash of x = -3x^2+3(2x)+9 -3x^2+6x+9 at local max and min f(x) should =0 -3x^2+6x+9=0 3x^2-6x+9 x^2-2x+3=0 stationary points would be at (x+3)
  99. Comp 155

    Based on the readings in Ch. 6, Section 2 of the text, identify key points to keep in mind when writing a topic sentence. How might these key points help you write effectively?
  100. math

    The inequality 10x + 20y > 500 models all of the combinations of scores of 10 and 20 points that will give a total greater than 500 points in a game. What is not true about the values for x and y?