1. Math - equation of plane and vectors

    A plane is defined by the equations x-4y+2z=16. Find two vectors parallel to the plane.

    asked by Shaila on September 6, 2010
  2. physics

    What can you say about the direction of the resultant force on the plane as a jet plane lands?

    asked by ajay on September 18, 2011
  3. calculus

    Find an equation of the plane containing the line of intersection of x+y+z=1 and x−y+2z=2, and perpendicular to the x-y plane.

    asked by andre on August 17, 2016
  4. Math - equation of plane and vectors

    A plane is defined by the equations x-4y+2z=16. Find two vectors parallel to the plane.

    asked by Shaila on September 4, 2010
  5. Probability

    Jolie has 6 quarters, 6 dimes, 4 nickels, and 10 pennies in her coin purse. If two coins are drawn at random without replacement, what is the probability of drawing a quarter on the first draw and a nickel on the second draw?

    asked by Kay on March 30, 2012
  6. Physics

    Spring on Incline The block in the figure is initially at rest on an inclined plane at the equilibrium position that it would have if there were no friction between the block and the plane. How much work is required to move the block 25 cm down the plane

    asked by Elizabeth on January 29, 2014
  7. Physics

    Two blocks of weights 77.0 and 114.0 N are connected by as massless string and slide down an inclined plane making an angle of 45.0 deg. to the horizontal. The cofficient of kinetic friction between the lighter block and the plane is 0.15 and that between

    asked by Yari on March 20, 2014
  8. Physics

    Two blocks of weights 77.0 and 114.0 N are connected by as massless string and slide down an inclined plane making an angle of 45.0 deg. to the horizontal. The cofficient of kinetic friction between the lighter block and the plane is 0.15 and that between

    asked by Anonymous on March 25, 2014
  9. math

    A model plane is 1/48 the size of the actual plane.if the model plane is 28 inches long how long it's the actual plane

    asked by megan on January 24, 2014
  10. Physics

    1.A plane traveling at 300.0 km/h attempts to land on a 500 m runway. The plane’s engines and brakes accelerate uniformly at –5.0 m/s2. Will the plane be able to land safely? Show all your work. Include any equations used, the given and unknown. Show

    asked by May on October 22, 2014
  11. calculus

    Use a graph of f(x) = 3 e^{-8 x^2} to estimate the x-values of any critical points and inflection points of f(x). critical points x= Inflection points x= Next, use derivatives to find the x-values of any critical points and inflection points exactly.

    asked by sam on April 3, 2013
  12. physics

    an engine block of mass 275kg rest on a plane which is inclined at 13 degrees to the horizontal.if the plane can be tilted to a maximum angle of 21 degrees before the engine block slide due to its weight.calculate the minimum force parallel to the plane

    asked by charles on October 6, 2010
  13. Geometry

    I need to explain how to make a triangle using a protractor and a string and the aas congruence theorem. I'm giving no angles. I was thinking draw a line find and angle then draw another line to attach to the first line get another angle and finish off

    asked by Sam on October 27, 2017
  14. Calc

    Two commercial airplanes are flying at an altitude of 40,000 ft along straight-line courses that intersect at right angles. Plane A is approaching the intersection point at a speed of 427 knots (nautical miles per hour; a nautical mile is 2000 yd or 6000

    asked by Anonymous on October 1, 2013
  15. Calc

    Two commercial airplanes are flying at an altitude of 40,000 ft along straight-line courses that intersect at right angles. Plane A is approaching the intersection point at a speed of 427 knots (nautical miles per hour; a nautical mile is 2000 yd or 6000

    asked by Anonymous on October 1, 2013
  16. Math

    Math question: My plane arrived in Chicago 45 minutes later from Detroit. How fast was my plane which traveled at about 20000 altitude?

    asked by Lisa on September 23, 2016
  17. math

    a plane is steering at S83degE at an air speed of 550 km/h. The wind is from N70degE at 85 km/h. Find the ground velocity of the plane to 1 d.p.

    asked by carol on June 10, 2018
  18. physics

    A plane heads south at 320 mph and the wind is west at 80 m/s. What is the final speed and angle degree of the plane?

    asked by Anonymous on August 31, 2011
  19. calulus

    A plane flying at a constant rate of 200km/hr. What is the distance travelled by the plane 3mintues after it passes the observation point.

    asked by Daniella on November 4, 2012
  20. Geometry

    A plane takes off at an angle of 24 degrees with the ground. How high in feet is the plane after its flight path is 3 miles long

    asked by Anonymous on February 13, 2016
  21. physics

    a 10 kg weight is on an inclined plane. 10 ft long and 6 ft high. if there is no friction, what force parallel to the plane will prevent the body from slidin?

    asked by hurd on November 24, 2012
  22. Math

    A model plane flies 18ft per 2 seconds. What is the plane's speed in miles per hour? Round to the nearest tenths.

    asked by Bill on April 27, 2014
  23. Physics

    A jet plane traveling 1890 km/h (525 m/s ) pulls out of a dive by moving in an arc of radius 5.20 km What is the plane's acceleration in g's?

    asked by Stuck on November 10, 2016
  24. Physics - Vectors/Forces

    A 10 kg weight is on an inclined plane 10 ft long and 6 ft high. If there is no friction, what force parallel to the plane will prevent the body from sliding?

    asked by Demitrio on July 16, 2017
  25. Physics

    A Jet plane traveling 1800 km/h (500 m/s) pulls out of a dive by moving in an arc of radius 6.00 km. What is the plane’s acceleration in g’s?

    asked by Angie on November 20, 2013
  26. algebra 1

    A passenger plane and a jet leave att the same time from the same airport,traveling in opposite directions. The jet travels at twice the speed of the passenger plane. they are 2400 mi apart in 4 hours. Find the speed of the passenger plane and jet.

    asked by Victoria on October 16, 2012
  27. physics

    A 6.0 kg mass moves along an inclined plane that makes an angle of 36 degrees with the horizontal. The mass is connected by a cable to a second mass of 10.0 kg, which is suspended over a frictionless, massless, pulley and is free to move. The second mass

    asked by Alex on November 22, 2011
  28. English

    1. What are the means of public transportation in our country? 2. What does the color on the subway map mean? 3. Find and write down the sentences which are the reasons for the following sentences from the reading text. 4. Draw a line between the picture

    asked by John on October 21, 2008
  29. geometry

    Plot the points (2,4), (-1,4) and (2,1) and connect them to form a triangle. What rule would you use to translate the triangle 5 units to the right? Write your rule in the form H(x,y) = (?,?). Draw the translated figure and label its coordinates.

    asked by Anonymous on January 30, 2012
  30. geometry

    Plot the points (2,4), (-1,4) and (2,1) and connect them to form a triangle. What rule would you use to translate the triangle 5 units to the right? Write your rule in the form H(x,y) = (?,?). Draw the translated figure and label its coordinates

    asked by Anonymous on February 6, 2012
  31. Math

    In a round robin tournament with N teams, every 2 teams play in a head-to-head match. Points are awarded as follows: 3 points for a win, 1 points for a tie and 0 points for a loss. What is the smallest value of N, such that it is possible for all the teams

    asked by pls answer quickly on October 11, 2013
  32. math

    A, B, C are three points on a horizontal plane, where A is due south of B. The bearing of C from A is 060 degrees. At B, there is a vertical mast BD. The angles of elevation of its top D from A and C are 25 degrees and 20 degrees respectively. Find the

    asked by somay on January 28, 2016
  33. math

    PQ is a vertical tower 95m high, the points R and S are on the same horizontal plane as Q, the angle of elevation of P from R is 35 if QS =155m and Q from RQS=48 1.Calculate the distance of QR 2.Calculate the distance of RS 3.Calculate the are of QRS

    asked by victor on May 19, 2013
  34. statistics

    6. Use Table 4.24 to answer the questions below. Table 4.24 x 2 4 6 6 10 y 3 5 6 11 9 a) Find the regression line equation. 4.72+7.81x b) Draw a scatter plot for the data. Graph the regression line on the same graph paper as the scatter plot. Do you think

    asked by Hayley on November 30, 2018
  35. Math

    Exercise 30: Velocities have both direction and magnitude and thus are vectors. The magnitude of a velocity vector is called speed. Suppose that a wind is blowing from the direction N45◦W at a speed of 40 km/h. (This means that the direction from which

    asked by Anonymous on January 26, 2018
  36. physics

    A projectile is projected with speed u at an angle alpha on an inclined plane of inclination angle bita. Find time of flight nn inclined plane and maximum height attained by projectile w.r.t. Inclined plane, range of projectile on inclined plane, angle of

    asked by Shivam on July 24, 2011
  37. math

    Draw a diagram to show that there are two tangent lines to the parabola y = x2 that pass through the point (0, −25). Find the coordinates of the points where these tangent lines intersect the parabola.

    asked by Kyle on January 10, 2016
  38. math

    Stewart is playing a video game. He earns the same number of points for each prize he captures. He earned 1,200 points for 6 prizes, 2,000 points for 10 prizes, and 2,600 points for 13 prizes. Which is the dependent variable in this situation? A)the number

    asked by kyle on April 4, 2015
  39. Advanced Math

    In a game you flip a coin twice, and record the number of heads that occur. You get 10 points for 2 heads, zero points for 1 head, and 5 points for no heads. What is the expected value for the number of points you’ll win per turn?

    asked by Kayla on February 20, 2014
  40. Probability and statistics

    In a game you flip a coin twice, and record the number of heads that occur. You get 10 points for 2 heads, zero points for 1 head, and 5 points for no heads. What is the expected value for the number of points you’ll win per turn?

    asked by Rosmery on September 18, 2012
  41. algebra

    each week, mandy's algebra teacher gives a 10 point math quiz. after 5 weeks, mandy has earned a total of 36 points for an average of 7.2 points per quiz. she would like to raise her average to 9 points. on how many quizzes must she score 10 points in

    asked by lily on May 17, 2010
  42. Physics - HELP

    An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). (Hint: First draw a diagram.) (a) What is the velocity (magnitude and direction) of the plane relative to the ground?

    asked by Anonymous on September 27, 2009
  43. physics

    An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). (Hint: First draw a diagram.) (a) What is the velocity (magnitude and direction) of the plane relative to the ground?

    asked by DJ on September 27, 2009
  44. Chemistry

    Please help! Complete equation by drawing structural formula(e) of the product(s). CH2=CH-CH-OH + CH3-CH-CH2-C =O CH3 CH3 -OH You will have to imagine the bonds as I can't draw vertical or diagonal lines! There are too many possibilities to imagine what

    asked by Bean on March 14, 2007
  45. math

    there are 4 possible scoring plays in NFL football game:touchdown=6 points;point after touchdown=1 point;feildgoal=3 points;and safty=2 points a. how many different ways could the team score 11 points? b. what final scores, between 1 and 30, are not

    asked by hailey on January 6, 2011
  46. physics

    a block of ice slides down a 45degree inclined plane in twice the time it takes to slide down a 45degree frictionless inclined plane. what is the coefficient of kinetic friction between the ice block and the plane?

    asked by Anonymous on March 1, 2015
  47. physics

    a block of ice slides down a 45degree inclined plane in twice the time it takes to slide down a 45degree frictionless inclined plane. what is the coefficient of kinetic friction between the ice block and the plane?

    asked by ogba on March 1, 2015
  48. Math

    Using the systematic list, solve. Dead eye, Joe made 15 points in the basketball game. 3 points given for a long shot, 2 points given for a field goal, and 1 point is given for a free throw. How many ways can dead eye Joe score 15 points. I came up with

    asked by Kathy on April 24, 2018
  49. Math

    Claudia has test scores of 78, 88, 84, 92, 76, 98. If she wants to end up with a ''B'' average, what does she need to score on her next test? Joe made 15 points in a basketball game, 3 points are given for a long shot, 2 points given for a field goal, and

    asked by Please show me how to do it. on April 24, 2016
  50. Physics

    A plane flies at an airspeed of 242 km/h. A wind is blowing at 72 km/h toward the direction 60° east of north. What is the speed of the plane relative to the ground?

    asked by Ashley on September 15, 2011
  51. physics

    a plane is flying southwest at 155 mi/h and encounters a wind from the west at 45.0 mi/h. what is the plane velocity in respect to the ground in standard position?

    asked by tatychass on September 17, 2010
  52. I really need help!

    Hi, I really need instructions. Can someone please tell me how to make a coordinate plane and a rectangle on the plane in Microsoft Excel 2013 please? I really I need an answer soon because this is due today!!!! Please someone help fast! Thank You :/

    asked by MusicLover14 on April 24, 2015
  53. physics

    a 1-kilogram block slides down a frictionless inclined plane with an angle of 35 degrees and 1.0 meters high. what is its velocity at the bottom of the plane?

    asked by Anonymous on May 1, 2013
  54. Calc II

    What is the volume of the solid inside the cylinder x^2 + y^2=4 below the plane y=z, and above the xy-plane ?

    asked by Moaid on April 6, 2010
  55. Calculus

    Find an equation of the plane. The plane that passes through (8, 0, −2)and contains the line x = 6 − 2t, y = 3 + 5t, z = 3 + 2t

    asked by Jessica on January 31, 2014
  56. English

    1. I ought to go by plane, shouldn't I? 2. I ought to go by plane, oughtn't I? ------------------------- Which tag question is right?

    asked by rfvv on October 31, 2016
  57. geometry

    find the equation to the plane through the point (-1,3,2) and perpendicular to the plane (x+2y+2z=5) and (3x+3y+2z=8)

    asked by anil on February 25, 2011
  58. Math

    Find an equation of a plane through the point (2, -1, 0) which is parallel to the plane -1x-2y+4z=7.

    asked by Derek Abeyta on February 2, 2010
  59. Math (Help please!)

    The points plotted on the coordinate plane below are three vertices of a rectangle. ht tp : //imgur dotcom /a/eix1I What are the coordinates of the fourth vertex of the rectangle? (Remove the word "Dot", and put a "." in it's place to access the link, and

    asked by Dejavu on April 8, 2017
  60. Dover

    a plane at a height of 5000m is travelling ata constant speed of 300m.s. A heat seeking missile is fired at the plane when it is 5000m due east of an airbase. if the missile's speed is 350m.s, will the missile hit the plane before it reaches 9000m due

    asked by Shoun on April 13, 2016
  61. mlit

    a plane at a height of 5000m is travelling ata constant speed of 300m.s. A heat seeking missile is fired at the plane when it is 5000m due east of an airbase. if the missile's speed is 350m.s, will the missile hit the plane before it reaches 9000m due

    asked by lizzy on January 5, 2013
  62. trg

    A plane flies in a direction of N70°E for 80 km and then on a bearing of S10°W for 150 km. a How far is the plane from its starting point? b What direction is the plane from its starting point?

    asked by p on September 15, 2013
  63. Physics

    A rat with mass 0.5 kg is sliding down an inclined plane. The plane is at an angle of 34⁰ with respect to the ground, and the coefficient of friction between the rat and the plane is 0.2. Simultaneously, a cat is giving the rat a push UP the hill, with a

    asked by Shalece on November 30, 2013
  64. Linear Algebra

    Help me find my error! a)Write down the equation of the plane passing through the point (1,5,7) and parallel to the lines. Line A: Line B: Point x = 3- 2t x = 2 - 2t y = 1 - 5t y = 3 - 2t z = 2 - t z = 1 + 4t Parametric equation of the plane = + t1 + t2

    asked by Leo on December 6, 2018
  65. PHYSICS - PLEASE HELP

    A box of weight w=2.0 N accelerates down a rough plane that is inclined at an angle 30 degrees above the horizontal. The normal force acting on the box has a magnitude n= 1.7 N, the coefficient of kinetic friction between the box and the plane is .30, and

    asked by Anonymous on November 30, 2012
  66. physics

    Two blocks, of weights 2.8 N and 5.5 N, are connected by a massless string and slide down a 47° inclined plane. The coefficient of kinetic friction between the lighter block and the plane is 0.087; that between the heavier block and the plane is 0.39.

    asked by Ted on October 24, 2011
  67. Math

    Olivia tossed two fair two-sided coins. In a game, she earns 4 points if exactly one coin lands on heads and 6 points if both coins land on heads. If points are not earned for tails, what is the expected value of the points earned? A. 3 1/3 B. 3 1/2 *** C.

    asked by Chrisley on January 28, 2016
  68. Geometry

    The next step is to construct side PS of the figure so that side PS is parallel and congruent to side QR. The chart below shows the steps each of the four students took to draw side PS: Student 1 Fix the compass at M and adjust its width to point L.

    asked by jay on June 20, 2015
  69. physics

    While taking a plane flight to a meeting, a physicist decides to do a mental calculation of how much fuel the plane would consume in the absence of friction, assuming its engines have an efficiency of 22.0% and the mass of the plane is 200,000 kg. Each

    asked by Justin on July 26, 2013
  70. Maths

    Let A0=(−1,0), and let O be the origin (0,0). For each integer i≥1, we construct the point Ai so that |Ai−1Ai|=|Ai−1O| and the angle ∠OAi−1Ai is a right angle. If O,Ai−1,Ai+1 are not collinear for any value of i, what is the x-coordinate of

    asked by HELP~ on May 30, 2013
  71. sd

    Let A0=(−1,0), and let O be the origin (0,0). For each integer i≥1, we construct the point Ai so that |Ai−1Ai|=|Ai−1O| and the angle ∠OAi−1Ai is a right angle. If O,Ai−1,Ai+1 are not collinear for any value of i, what is the x-coordinate of

    asked by ded on June 2, 2013
  72. Maths

    Let A0=(−1,0), and let O be the origin (0,0). For each integer i≥1, we construct the point Ai so that |Ai−1Ai|=|Ai−1O| and the angle ∠OAi−1Ai is a right angle. If O,Ai−1,Ai+1 are not collinear for any value of i, what is the x-coordinate of

    asked by ABCD on May 29, 2013
  73. Maths

    Let A0=(−1,0), and let O be the origin (0,0). For each integer i≥1, we construct the point Ai so that |Ai−1Ai|=|Ai−1O| and the angle ∠OAi−1Ai is a right angle. If O,Ai−1,Ai+1 are not collinear for any value of i, what is the x-coordinate of

    asked by Someone need help~ on May 27, 2013
  74. Pre cal

    1. An airplane flies 200 km on course 110 degrees from point A to point B. At point B the pilot changes course to 37 degrees. The plane then flies 100 km to point C. Find the magnitude of the net displacement from A to C. 2. A plane is flying on a bearing

    asked by Henry on May 15, 2014
  75. Physics

    3 There are two charges +Q and –Q/2 that locate at two positions with a separation of d as shown in Fig. 1. We may put +Q at the origin of the x-axis to facilitate the calculation. (a) Find the electric field for +Q and –Q/2 at the position P. (5

    asked by David on September 5, 2010
  76. Math

    geometry- On the coordinate plane, draw a rectangle ABCD with vertices at A (1,4), B(5,4), C(5,1) and D (1,1). Then graph and describe the new rectangle formed when you subtact 3 from each coordinate of the vertices in rectangle ABCD.

    asked by Witty on September 20, 2012
  77. precalc

    1. A plane is headed at 122 degrees with an air speed of 350mph in a wind that is blowing from 38 degrees. Find the ground speed of the plane and the speed of the wind if the actual flight was at 133 degrees. 2. A plane is heading at 20 degrees at 300mph

    asked by sarah on April 14, 2013
  78. 8th grade Math

    Khalid uses Penelope’s bag of letter tiles to create a different game in which he tries to randomly draw a set of five tiles with consecutive letters. If Khalid plans to draw five tiles from the bag, without looking and without replacing any tiles, what

    asked by Anonymous on February 1, 2011
  79. Cartesian Equation

    Determine the Cartesian equation of each of the following planes: b) through the points (3,0,1) and (o,1,-1), and perpendicular to the plane with equation x-y-z+1=0 My teacher told me to find a direction vector, cross that with the normal, and set up my

    asked by Lily on March 29, 2016
  80. HELP! INTRO TO ECO

    Why do supply curves slope upward from left to right? Why don't we sometimes draw them sloping downward from left to right? Under what conditions would it be sensible to draw a supply curve that is horizontal(perfectly elastic)? Under what conditions would

    asked by Brittany on October 12, 2010
  81. Calculusss ( pleassee someboddy heelp )

    an airplane flying due east at 400 km/h pasess over an airport 12 minutes before a second plane flying south 30 degrees west at 500 km/h.if the airplanes are at the same altitude how fast will they by seprating when the seccong plane is over the

    asked by Alisha on March 18, 2011
  82. pre cal

    An airplane is flying at a speed of 350 mi/h at an altitude of one mile. The plane passes directly above a radar station at time t  0. (a) Express the distance s (in miles) between the plane and the radar station as a function of the horizontal distance d

    asked by Danielle on May 1, 2014
  83. Physics

    A 175-N box is placed on an inclined plane that makes a 20.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

    asked by Wesley on November 12, 2015
  84. physics

    An Air plane flys from san fransico to new-york about 4800km at speed of 300m/s how much time does trip take as measured by observer in the plane?

    asked by john on January 25, 2016
  85. Physics

    A Plane flies north at 215 km/h. A wind from the east blows at 69km/h. What is the plane's new velocity with respect to the ground in standard position

    asked by James on March 20, 2014
  86. Physics

    A plane is headed east with an air speed of 294.0 m/s. The wind blows southeast at 42.0 m/s. Find the velocity of the plane relative to the earth.

    asked by Aaron on February 2, 2012
  87. physics

    a plane is headed north with a velocity of 400km/hr and west wind blowing at 70km/hr.find the distance of the plane from its base in 2hrs

    asked by gift on October 23, 2013
  88. physics

    a plane is headed north with a velocity of 400km/hr and west wind blowing at 70km/hr.find the distance of the plane from its base in 2hrs

    asked by gift on October 23, 2013
  89. science

    a plane is headed north with a velocity of 400km/hr and west wind blowing at 70km/hr.find the distance of the plane from its base in 2hrs

    asked by gift on October 23, 2013
  90. math 117

    A plane flies 720 mi against a steady 30 mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10 h, what is the plane’s speed in still air?

    asked by Diana on July 12, 2007
  91. physics

    A plane flies at 150m/s at 35 degrees east of north. It encounters a wind from the west blowing 26 m/s. What is the true course of the plane? (speed and direction)

    asked by JD on October 7, 2016
  92. Physics

    A 180 N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

    asked by Khadija on February 11, 2014
  93. Physics

    A 200-N box is placed on an inclined plane that makes a 35.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

    asked by Billy on January 14, 2013
  94. Physics

    A 170-N box is placed on an inclined plane that makes a 35.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

    asked by Billy on November 18, 2012
  95. physics

    A 175-N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

    asked by student on December 12, 2011
  96. physics

    A 155 N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

    asked by james on October 12, 2010
  97. physics

    A 210-N box is placed on an inclined plane that makes a 40.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

    asked by cbb on October 19, 2009
  98. Physics

    A 60 kg box is on a 80 m long plane which is inclined at 30 degrees, the coefficient of friction is 0.25. How much force is needed to move it up a plane A.) at a constant velocity and B.) with an acceleration of 2 m/s^2

    asked by C0C0 on October 21, 2012
  99. Physics

    A jet plane lands with a velocity of 100 m/s and can accelerate at a maximum rate of -5.0 m/s2 as it come to rest. Can this plane land at an airport where the runway is 0.80 km long?

    asked by Janice on August 27, 2012
  100. Probability

    You have a 4-card deck containing a queen, a jack, a 10, and a 9. You draw a random card, put it back, and draw a second random card. Use a tree diagram to calculate the probability that you draw exactly 1 face card (a queen or a jack). A. 1/2. B. 7/16. C.

    asked by so confused! on May 8, 2013