Monday

April 21, 2014

April 21, 2014

Number of results: 219,712

**pre calculus**

Find the inverse of the following function. Find the domain, range, and asymptotes of each function. Graph both functions on the same coordinate plane. F(x)= ln(8-x) I am totally lost, somebody please help????
*Wednesday, April 24, 2013 at 10:36pm by trish*

**Math**

I need help with this problem: Two planes start from Los Angeles International Airport and fly in opposite directions. The second plane starts ½ hour after the first plane, but its speed is 80 kilometers per hour faster. Find the airspeed of each plane if 2 hours after the ...
*Wednesday, May 14, 2008 at 2:00am by Kelsey*

**Math**

y = |x − 4| + 8 Find the x-coordinate of the vertex of the graph. And the y-coordinate of the vertex of the graph. Please help me, I'm stuck!
*Wednesday, November 3, 2010 at 10:21pm by HELP*

**math**

> The midpoint of the linesegment from P1 to P2 is (-4, 1). If P1 equals (-4,6)what is P2? Find the distance between P1 and the midpoint: P1 - midpoint (-4,6) - (-4, 1) Start with the "x" coordinates. Since the "x" coordinate is the same (x = -4) for both P1 and the ...
*Wednesday, September 12, 2012 at 9:42pm by Adam F*

**geometry**

Al and Harpreet are racing to Wing Stop to get the last batch of fries made for lunch. Al participates in cross country and can cover (write in value) per minute. Harpreet likes to watch TV and play video games. She is out of shape and can only cover 3 units per minute. If ...
*Saturday, October 6, 2012 at 2:32pm by Dana*

**Physics**

A loaded penguin sled weighing 60 N rests on a plane inclined at 20° to the horizontal. Between the sled and the plane the coefficient of static friction is 0.27, and the coefficient of kinetic friction is 0.13. (a) What is the minimum magnitude of the force F, parallel to the...
*Tuesday, February 19, 2013 at 6:15pm by Rachel*

**algebra 2**

A. I need to write an equation to the linear equation..(-2,-2), (3,3). B. I need to graph the function of y=|x| on a coordinate plane. C. I need to give one similarity and one differnce for the equations and graphs in parts A and B. I really need your help on this i dont ...
*Thursday, January 17, 2008 at 9:45pm by logan*

**Physics**

How do you find the coefficient of friction of an object sliding down an inclined plane. Given: m = 10 kg length of plane = 5.0 m Height of plane = 2.5 m
*Sunday, January 4, 2009 at 8:43pm by Megan*

**Physics **

A plane is flying west at 214 km/h. The wind is blowing south at 108km/h. a what is the ground speed of the plane b In what direction does the plane travel
*Tuesday, January 31, 2012 at 8:55pm by Shekinah*

**Math**

Two small planes start from the same point and fly in the same direction. The first plane is flying 35 mph slower than the second plane. In 2 hrs, the planes are 530 mi apart. Find the rate of the slow plane.
*Thursday, February 4, 2010 at 11:52am by Mathew*

**Geometry Honors (p.2)**

sometimes what? Is there a typo here? The required answer is "always parallel". actually, the question is ill-worded. What does it mean for a plane to lie in a plane? I think they mean polygons, or plane figure, or region which lies in a plane. Associated with a plane is a ...
*Thursday, August 30, 2012 at 8:29pm by Steve*

**Geometry Quadrilateral Coordinate Plane Question**

A graph shows that it is a kite. (0,1),(0,9). A ver. line. (-3,6),(3,6). A hor. line. The line of symmetry is the y-axis(x = 0). After connecting the 4 given points. you can complete the graph.
*Tuesday, January 10, 2012 at 4:47pm by Henry*

**Math**

Mattie drove 140 miles in the same amount of time that it took a tubropropeller plane to travel 520 miles. The speed of the plane was 190 mph faster than the speed of the car. Find the speed of the plane
*Thursday, March 1, 2012 at 4:39pm by Anonymous*

**Algebra 1**

Find three points that satisfy the following conditions. The x-coordinate and the y-coordinate are additive inverses of each other. Any help or clues would be very much appreciated.
*Tuesday, January 29, 2013 at 8:30pm by Anonymous*

**mechanics**

An object (point mass) is projected up an inclined plane from the bottom with an initial speed of 5.0 m/s. The plane is 0.75 m high and the coefficient of kinetic friction between the object and the plane is 0.25. For what angle of inclination would the mass just come to rest ...
*Monday, February 6, 2012 at 8:38pm by juan*

**physics**

An object (point mass) is projected up an inclined plane from the bottom with an initial speed of 5.0 m/s. The plane is 0.75 m high and the coefficient of kinetic friction between the object and the plane is 0.25. For what angle of inclination would the mass just come to rest ...
*Monday, February 6, 2012 at 8:42pm by jason*

**Math**

Can someone show me how to solve these questions. A plane is is flying 240 mph heading N60°E. The wind is blowing S30°E at 30 mph. 6. What is ground speed of the plane? The ground speed of the plane is 266.40. 7. What is the smallest angle in the triangle? 8. What is ...
*Sunday, March 16, 2014 at 8:35pm by Crewniverse*

**physics**

a particle of mass m moves in a x-y plane. The coordinates of the particle at any instant are given by x = acos(wt) and y = bsin(wt). where a,b,w, are constant. Determine the angular momentum of the particle with respect to the origin of the coordinate system.
*Monday, October 21, 2013 at 5:45am by Sarsi*

**geomerty**

A line contains the points (0, -2) and (1,3). Another line graphed in the same coordinate plane contains the points (3, -1) and (-2,0). Based on the slope of these lines, are they parallel, perpendicular or neither?
*Thursday, July 7, 2011 at 5:53pm by cassie*

**slope and graphing**

The lines y=5/12x and y=4/3 are drawn in the coordinate plane. Find the slope of the line that bisects these lines. How? Do we find the average? Do we build isosceles triangles?
*Sunday, March 10, 2013 at 7:57pm by Knights*

**Calculus (pleas help!!!)**

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of the minimum. y= _____ ...
*Wednesday, April 6, 2011 at 9:45pm by Eva*

**Calculus Please Help**

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of the minimum. y= _____ ...
*Wednesday, April 6, 2011 at 10:43pm by Eva*

**algebra 1**

In the standard (x,y)cooridniate plane the graph of (x-2)second power +(y+4 second power =9 is a circle. What is the area enclosed by this circle, expressed in sguare coordinate units? please help me?
*Sunday, April 24, 2011 at 10:05am by elodie*

**Geometry Triangle Coordinate Plane Question**

What kind of triangle is made by connecting the points A(0, –6), B(3,–6), and C(3, –2)? equilateral right isosceles right and isosceles Thank You :)
*Tuesday, January 10, 2012 at 4:48pm by sLEXANDria*

**Physics**

A loaded penguin sled weighing 60 N rests on a plane inclined at 20° to the horizontal. Between the sled and the plane the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.18. (a) What is the minimum magnitude of the force F, parallel to the...
*Wednesday, October 28, 2009 at 4:44pm by Karen*

**Physics **

A particle of mass m moves in a x-y plane. the coordinates of the particle at any instant are given by x=acos(wt) y = bsin(wt). where a,b,w, are constants. determine angular momentum ofthe particle with respect to the origin of the coordinate system.
*Wednesday, October 23, 2013 at 2:28am by Sarsi*

**Vector**

If the plane is perpendicular to L: (3,-1,-4)+t(-2,3,1) in which the vector (-2,3,1) is parallel to the line, and therefore perpendicular to the plane P, then the required plane is: -2x+3y+z+k=0 where k is a constant to be determined. Since the required plan passes through P(1...
*Sunday, May 30, 2010 at 5:43pm by MathMate*

**Physics**

A loaded penguin sled weighing 81 N rests on a plane inclined at angle θ = 21° to the horizontal (Fig. 6-23). Between the sled and the plane, the coefficient of static friction is 0.24, and the coefficient of kinetic friction is 0.13. (a) What is the minimum magnitude of ...
*Sunday, October 10, 2010 at 4:41pm by Alaina*

**Physics**

A loaded penguin sled weighing 73 N rests on a plane inclined at angle θ = 21° to the horizontal (Fig. 6-23). Between the sled and the plane, the coefficient of static friction is 0.24, and the coefficient of kinetic friction is 0.19. (a) What is the minimum magnitude of ...
*Saturday, October 1, 2011 at 11:01am by Granger*

**physics**

A loaded penguin sled weighing 75 N rests on a plane inclined at angle θ = 24° to the horizontal (Fig. 6-28). Between the sled and the plane, the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.13. (a) What is the minimum magnitude of ...
*Sunday, October 23, 2011 at 6:55pm by Taylor*

**Physics**

A loaded penguin sled weighing 66 N rests on a plane inclined at angle θ = 24° to the horizontal (Fig. 6-23). Between the sled and the plane, the coefficient of static friction is 0.22, and the coefficient of kinetic friction is 0.13. (a) What is the minimum magnitude of ...
*Sunday, October 23, 2011 at 11:12pm by Ted*

**Math - distance b etween a line and plane**

Find the distance between the parallel line and the plane. line: vector r = [2,0,1]+t[1,4,1] plane: 2x-y+2z=4
*Saturday, August 28, 2010 at 4:46pm by Shaila*

**Phsycis/Math (please help)**

Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The inclined plane is inclined at an angle of 37 degrees. The hanging block has a mass of 16.0 kg, ...
*Wednesday, November 20, 2013 at 10:19am by Jared*

**math**

At an airport, a flight controller was in a tower 40m above the ground. When she first observed a plane it was at an angle of elevation of 12 (degrees) from her line of sight and flying at a constant altitude (height) The plane had a constant speed of 360km/h Eight seconds ...
*Sunday, May 19, 2013 at 8:06am by alice*

**Math**

a line RS is perpendicular to plane p at R. If T is a second point not on. Can RT be perpendicular to plane P? Lines AB and LM are each perpendicular to plane P. Are AB and LM coplanar? Plan P is perpendicular to AB at B. Plane Q intersects AB at P. Can Q be perpendicular to AB?
*Tuesday, May 17, 2011 at 8:49pm by Camile*

**Physics-Please reecheck**

Ok, I was worried when I answered that what the "plane of the coil) meant. Normally, in math, we take the normal to the plane as the direction vector, which would at max generation be perpendiular to the magnetic field. The physical plane is parallel to the field, cutting a ...
*Monday, May 2, 2011 at 7:51pm by bobpursley*

**college algebra**

Find the inverse of the following function. Find the domain, range, and asymptotes of each function. Graph both functions on the same coordinate plane f(x)=4+e^-x/3 please help me! show steps also, if i an just given an answer that wont help me! thanks in advance!!!
*Tuesday, August 28, 2012 at 5:49pm by samantha*

**Algebra 2 help :)**

1. true it is not a real number 2 that is true, when graphing a function or a parabola, the minimum value is the smallest y value 3 i^2 = -1, thus it is false 4 complex numbers CANNOT be graphed on the coordinate plane (where would we put it?!) so false
*Tuesday, November 20, 2012 at 11:59am by mathfailure*

**math**

light from point a makes an angle of 20 degrees to the horizontal plane. it is then reflected by plane mirror m. whta is the reflected light s perpendicular to the horizontal plane.
*Wednesday, February 6, 2013 at 12:51am by kitty*

**Pre-Calculus-Trig**

A woman on the top of a 448 foot high building spots a small plane. As she views the plane, its angle of elevation is 62 degrees. At the same instant a man at the ground-level entrance to the entrance to the building sees the plane and notes that its an angle of elevation is ...
*Sunday, January 30, 2011 at 8:00pm by Chloe Mack*

**mechanics (calculating plane speed and climb angle**

maybe I'm missing something, but if angles α and β are in the x-y plane, how do we figure the altitude of the plane, and hence any climb rate? No mention is made of altitude, either of the radar stations, or of the plane. No figure here, so I'm not sure of the 3-D ...
*Saturday, November 10, 2012 at 8:44am by Steve*

**physics**

A block of mass 39 kg lies on an inclined plane, as shown. The horizontal and vertical supports for the plane have lengths of 36 m and 15 m, respectively, and the coefficient of kinetic friction between the plane and the block is 0.3. The magnitude of the force ~F necessary to...
*Wednesday, October 6, 2010 at 11:56pm by christine*

**Physics**

A supersonic jet travels at 3.0 Mach (i.e. at three times the speed of sound). It cruises at 20,000 m above the ground. we choose t=0 when the plane passes directly overhead of an observer. At what time t will the observer hear the plane? -- there is a diagram of a person ...
*Sunday, January 31, 2010 at 6:58pm by Katelynn*

**math**

the closest point is surely on a line from (0,0,0) meeting the plane at right angles. but the normal to the given plane is (1,1,-1) so the line must have direction (1,1,-1) it's parametric equations would be: x = k y = k z = -k sub that in to the plane to find the value of k, ...
*Monday, March 16, 2009 at 6:30pm by Reiny*

**Math**

When completing the square: 5x^2 + 10x - 20 5 ( x^2 + 2x) -20 = 0 5 ( x + 1)^2 -15 = 0 Did I do that right? If so I have another question. When it's in this form, -15 is the y-coordinate of the vertex and 2 the x coordinate of the vertex? If so isnt the x cooridinate of the ...
*Wednesday, January 23, 2008 at 9:55pm by Lena*

**math**

m is the slope, and b is the y-intercept in y=mx+b. The given equation can be converted to the form y=(1/2)x + 0 So what is the y-intercept for the given equation? Note: the y-intercept is a single numerical which represents the y-coordinate of the intersection of the line ...
*Sunday, August 22, 2010 at 9:25pm by MathMate*

**Math**

Find an equation of a plane through the point (2, -1, 0) which is parallel to the plane -1x-2y+4z=7.
*Tuesday, February 2, 2010 at 2:29pm by Derek Abeyta*

**Math**

A line intersects the graph of y=x^2 twice. One point has an x-coordinate of -4, and the other point has an x- coordinate of 2. A. Find the equation of the line. B. Find the measure of the angle that the line makes with the x-axis.
*Monday, January 23, 2012 at 10:15pm by Anonymous*

**statistics**

a point is randomly selected within the rectangle with vertices at (2,0), (2,2), (-4,2), and (4,0). What is the probability that the point's x-coordinate and y-coordinate are both positive?
*Wednesday, January 4, 2012 at 11:34pm by luckybee*

**physics**

The plane airspeed 150kts, the plane speed over ground 140kts, the plane relative to the deck of the ship 140-30 The balloon is moving at 10kts, the lifboat at zero kts,
*Wednesday, October 19, 2011 at 10:00pm by bobpursley*

**Geometry HELP**

A line segment has one endpoint at the coordinate (0, 1) and a midpoint at the coordinate (2, 4). Find the other endpoint. a.)(1, 7) b.)(4, 7) c.)(1, 25)
*Friday, June 4, 2010 at 2:04pm by Ariel*

**Trig**

Sketch the graph through at least one complete cycle. Label the axes on the coordinate plane. Use your graph to predict the height of point P above the surface of the water when the stopwatch shows 7 seconds. Round to the nearest tenth of a foot. (Enter only the number.)
*Thursday, June 21, 2012 at 6:11pm by Jessica*

**Math Ms. Sue please help**

Flying to Kampala with a tailwind a plane average 158km/h. On the return trip the plane only averaged 112km/h while flying back into the same wind. Find the speed of the wind and the speed of the plane in still air.
*Thursday, February 28, 2013 at 9:11pm by Anonymous*

**Geometry Triangle Coordinate Plane Question**

find the lengths of AB , AC, and BC and tell from there. I will do one of those .... BC = √( 3-3)^2 + (-2- (-6))^2 ) = √(0 + 16) = √16 = 4
*Tuesday, January 10, 2012 at 4:48pm by Reiny*

**Calculus**

find the x-coordinate of the point P on the parabola y=1-x^2 for 0<x<1 where the triangle that is enclosed by the tangent line at P and the coordinate axes has the smallest area.
*Thursday, November 6, 2008 at 8:27pm by Ivan*

**calculus**

Find the x-coordinate of the point P on the parabola y=1-x^2 (0<x=<1) where the triangle enclosed by the tangent line at p and the coordinate axes has the smallest area.
*Tuesday, November 24, 2009 at 5:55pm by Anonymous*

**Physics**

An object moving with uniform acceleration has a velocity of 12m/s in the +ve x-direction,when its x-coordinate 3cm.if its x-coordinate 2sec. later is -5cm ,what is the acceleration?
*Sunday, November 25, 2012 at 8:31pm by Minte*

**physics**

"Charges of 2.00uc and -3.00uc are located in a coordinate plane at(2.00cm, 5.00 cm) and (3.00cm, 2.00cm) respectively. calculate the magnitude and direction of the electric field created by this pair at the origin. express your answer in both polar and rectangular form"
*Tuesday, February 1, 2011 at 12:02pm by seahill*

**math**

A plane is 11.9 miles off the ground as it makes its descent to land at the Metropolitan airport (46 miles away). The pilot aims the plane downward at a 12-degree angle. To the nearest mile, what distance will the plane have to travel in the air to land at the airport?
*Tuesday, July 16, 2013 at 1:34pm by Anonymous*

**physics**

a small plane takes off at a constant velocity of 50 km/h of 37 degrees. at 3.00 s (a) how high is the plane above the groundand (b)what horizontal distance has the plane travelad from the liftoff point?
*Tuesday, January 1, 2008 at 7:44pm by melissa*

**math**

Two planes left at the same time from two airports which are 4,500 miles apart and flew toward each other. In 5 hours, they passed each other. The rate of the fast plane was twice the rate of the slow plane. Find the rate of each plane.
*Thursday, January 17, 2013 at 11:36am by MP*

**math**

an early flight lasted for 12 seconds. The plane flew 144 feet. What is the plane's speed in ft/s?
*Tuesday, April 21, 2009 at 4:52pm by tanya*

**college calculus**

a point is moving on the graph of xy=30. when the point is at (6,5), its x-coordinate is increasing by 6 units per second. how fast is the y-coordinate changing at the moment
*Wednesday, March 31, 2010 at 2:05pm by daren*

**college calculus**

a point is moving on the graph of xy=30. when the point is at (6,5), its x-coordinate is increasing by 6 units per second. how fast is the y-coordinate changing at the moment
*Wednesday, March 31, 2010 at 2:06pm by daren*

**Calculus**

A particle moves along the curve y = sqr(1+x^3). As it reaches the point (2,3), the y-coordinate is increasing at a rate of 4 cm/s. How fast is the x-coordinate of the point changing at that instant.
*Monday, April 29, 2013 at 10:54pm by Lizzy*

**Calculus**

A particle moves along the curve y = sqr(1+x^3). As it reaches the point (2,3), the y-coordinate is increasing at a rate of 4cm/s. How fast is the x-coordinate of the point changing at that instant?
*Wednesday, May 1, 2013 at 11:41am by Kate*

**physics**

a plane is flying with a constant speed along a straight line at an angle 60degree with the horizontal. the weight(W) of the plane is 90,000N and its engine provides a thrust(T)of 120,000N in the direction of flight . two additional forces are exerted on the plane :the lift ...
*Saturday, February 11, 2012 at 9:23am by ash*

**Calculus**

If the plane is orthogonal to (5,-6,-1) + t(3,10,-3), then it is also orthogonal to the parallel line t(3,10,-3) which moves through the origin. Consider first the plane orthogonal to this line which contains the origin. If the point (x,y,z) is on that plane, then: (x,y,z) dot...
*Monday, September 10, 2007 at 8:40pm by Count Iblis*

**math**

in which quadraints are the signs of the first and second coordinate the same? the signs of the first and second coordinate are always the same in quadrants type I, II, III, or IV. use a comma to separate answers as needed
*Tuesday, September 28, 2010 at 10:05pm by Anonymous*

**Physics - Kinematics**

Qn: Ball 1 is launched up an inclined plane from the bottom of the plane with an initial speed that is the minimum speed for it just to reach the top of the plane. At the same moment as ball 1 is launched up the plane, Ball 2 is released from rest at the top of the plane. They...
*Thursday, November 25, 2010 at 1:31pm by Rod*

**Math**

LaQuisha has a sprinkler that waters a circular area. The diameter of the area that the sprinkler waters is 20 feet. The actual sprinkler is located at the origin of the coordinate plane. Write an equation that describes the circumference of the circular area that the ...
*Wednesday, June 9, 2010 at 7:03pm by Quinn*

**math**

one hundred feet directly overhead, a plane and a dirigible start flying due east. If the plane travels three times faster than the dirigible, what is the greatest angle of sight between the two vehicles from your position? Assume the plane passes from sight after 6000 feet.
*Sunday, May 2, 2010 at 11:13pm by Yen*

**Physics**

I assume F is up the plane, parallel to the plane. Forces on the block, using Up the plane as positive. F -mgsinTheta - mu*mgCosTheta=0 I dont get your answers..
*Saturday, September 29, 2007 at 7:37pm by bobpursley*

**Calculus**

vector normal to plane has direction 3 i + 2 j + 6 k line normal to plane through point is (1, -5 , 9) + (3, 2, 6) t where does that hit the plane? 3(1+3t) + 2(-5+2t) + 6(9+6t) = 5 solve for t go back and use that t to get x, y, z in plane x = 1+3t y = -5+2t z = 9+6t then d^2...
*Friday, January 31, 2014 at 3:12pm by Damon*

**math**

To be parallel to the xz plane, y must be constant. In this case, the constant is y = 3. There is more than one line parallel to the xz plane that passes through that point. If the z vs x slopes of the various possible slopes in the y=3 plane are denoted by m, z - 4 = m (x - 2)
*Wednesday, December 19, 2012 at 1:45am by drwls*

**Vectors **

A vector formed by joining any two points that lie in the plane is parallel to the plane. For example, for the given plane P: x + 2y + 2z - 5 = 0 A(1,1,1) lies in the P, and B(5,0,0) lies in the P. Therefore the vector BA = (1-5, 1-0, 1-0) = (-4, 1, 1) is parallel to the given...
*Saturday, June 5, 2010 at 8:41pm by MathMate*

**Physics**

A small plane is 150km south of the equator. The plane is flying at 220km/h at a heading of 30 degrees to the west of north. In how many minutes will the plane cross the equator?
*Sunday, October 14, 2012 at 3:13pm by Cassie*

**Math please ASAP**

what about it? If both points have the same y-coordinate, the line is horizontal. Does not matter what the x-coordinate is. ALL points on the horizontal line y=3 are of the form (x,3) no matter what x is.
*Wednesday, March 26, 2014 at 3:25pm by Steve*

**calculus**

A particle moves along the curve y=square sqrt 1+x^3. As it reaches the point (2,3), the y-coordinate is increasing ata a rate of 4cm/s. How fast is the x-coordinate of the point changing at that instant?
*Monday, October 25, 2010 at 4:26pm by tim*

**physics**

A body moving with uniform acceleration has a velocity of 11.1cm/s when it's coordinate is 3.59cm. If it's x coordinate 2.48sec later is -3.58cm, what is the x-component of it's acceleration. Answer in units of cm/s^2
*Sunday, September 16, 2012 at 2:22pm by Emily*

**Math**

Could someone help me with these questions? Thanks! a) A cargo plane left Vancouver, British Columbia (time zone −8) at 3:00 p.m. on a Monday. The plane ﬂew for 11 h to Paris, France (time zone +1). At what local time and on what day did the plane land in Paris? b...
*Wednesday, February 5, 2014 at 10:46pm by Chelsea*

**Math**

a plane flies due north at 300 mi/h for 3 h then due west at 250 mi/h. If x represents the number of hours the plane is flying due west, determine for what values of x the plane will be more than 3700 mi from it's original point.
*Tuesday, March 8, 2011 at 5:59pm by Rob*

**Math**

2 y + 4 x = 3 ( y - x ) + 8 2 y + 4 x = 3 y - 3 x + 8 Subtract 4 x to both sides 2 y + 4 x - 4 x = 3 y - 3 x + 8 - 4 x 2 y = 3 y - 7 x + 8 Subtract 3 y to both sides 2 y - 3 y = 3 y - 7 x + 8 - 3 y - y = - 7 x + 8 Multiply both sides by - 1 y = 7 x - 8 A straight line on the ...
*Tuesday, January 15, 2013 at 12:14am by Bosnian*

**Calculus Grade 12**

pick any values for two of the variables, and calculate the third coordinate. z = (6-5x-4y)/-3 so, if x=1 and y=10, z=13 and (1,10,13) is on the plane. using similar expressions for x and y, you can pick points using x,z or y,z.
*Friday, June 15, 2012 at 3:13pm by Steve*

**Honors Physics **

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?
*Tuesday, October 16, 2012 at 8:56pm by Jonathan*

**8th Grade Math (Algebra1)**

Another problem that I have that includes the same directions are: A plane leaves Lignoier Airport and travels west at 230 mph. A second plane leaves 3 hours later and travels east at 215 mph. How long has each plane flown when the two planes are 1135 miles apart?
*Tuesday, February 3, 2009 at 9:21pm by Nicole C.*

**Algebra**

Let A(4,3) B(5,8) and C(3,10) be three points in a coordinate plane. Find the coordinates of a point D such that the points ABC and D form a parallelogram with (a)AB as one of the diagonals (b)AC as one of the diagonals (c)BC as one of the diagonals
*Sunday, September 18, 2011 at 4:43pm by Amanda*

**SCIENCE NEED HELP**

A plane travels from California to New York. The plane travels about 5000 km in 5 hours. What is the plane's velocity? (Give directions as North, South, East, or West.)
*Tuesday, February 12, 2013 at 8:23pm by NEED HELP *

**Physics**

A plane weighing 220 kN (25 tons) lands on an aircraft carrier. The plane is moving horizontally at 67 m/s (150 mi/h) when its tail hook grabs hold of the arresting cables. The cables bring the plane to a stop in a distance of 84 m. (a) How much work is done on the plane by ...
*Monday, October 3, 2011 at 2:23am by John*

**Math**

first, determine the x1 and x2, as well as the y1 and y2: *note: i will rename the given points as A and B,, first point, A(-16, -19) -16 is the x-coordinate of point A = x1 -19 is the y-coordinate of point A = y1 second point, B(-18, -20) -18 is the x-coordinate of point B = ...
*Friday, August 20, 2010 at 12:13am by jai*

**physics**

A ball starts from rest and accelerates at 0.520 m/s2 while moving down an inclined plane 9.65 m long. When it reaches the bottom, the ball rolls up another plane, where, after moving 14.40 m, it comes to rest. (a) What is the speed of the ball at the bottom of the first plane...
*Saturday, October 10, 2009 at 8:11pm by Jamie*

**Math, Related Rates**

Consider the hyperbola y = 1/x and think of it as a slide. A particle slides along the hyperbola so that its x-coordinate is increasing at a rate of f(x) units/sec. If its y-coordinate is decreasing at a constant rate of 1 unit/sec, what is f(x)? -I arrived at the answer f(x...
*Tuesday, September 10, 2013 at 9:40am by xavier*

**Physics**

A block of mass m lies on a rough plane which is inclined at an angle è to the horizontal. The coefficient of static friction between the block and the plane is ì. A force of magnitude P is now applied to the block in a horizontal direction, towards the plane. Show that the ...
*Sunday, May 13, 2012 at 12:15am by Anonymous*

**physics**

A cart is propelled over an xy plane with acceleration components ax = 5.1 m/s2 and ay = -2.9 m/s2. Its initial velocity has components v0x = 8.2 m/s and v0y = 11.2 m/s. In unit-vector notation, what is the velocity of the cart when it reaches its greatest y coordinate?
*Sunday, October 7, 2012 at 6:27pm by tatiana*

**Math**

A plane flies 150km due south and then 150km on a bearing of 45 degrees Celsius. With repeat to it initial position, find a. How far south the plane is b. how far east the plane is is c. It bearing d. How far way it is
*Tuesday, June 7, 2011 at 6:18am by Isaac*

**Math**

Find the point of intersection between y=2-(1/2)x and y=1+ax. (a=alpha sign). You answer will be a point in the xy plane whose coordinates involve the unknown a . I got that which is x=2/(2a+1), y=(1+2a)/(2a+1) <-intersection point I need help is to: Find a (a=alpha sign) ...
*Friday, October 9, 2009 at 12:05am by SC*

**algebra**

In a coordinate plane, the points (2,4) and (3,-1) are on a line. Which of the following must be true? 1. The line crosses the x-axis. 2. The line passes through (0, 0). 3. The line stays above the x-axis at all times. 4. The line rises from the lower left to the upper right. ...
*Friday, March 29, 2013 at 9:58pm by Eric*

**algebra 2**

plane a is 40 mi south and 100 mi east of plane b. plane a is flying 2mi west for every mile it flies north, while plane b is flying 3 mi east for every mile it flies south. which plane must fly farther
*Monday, November 11, 2013 at 12:13pm by Anonymous*

**Math**

distance slow plane=vt distance fast plane=.5*(v+80)t +(v+80)t 3200=sum of the two distances, or 3200=v*2+.t(v+80)*2 + (v+80)*2 solve for v, then for the faster plane, its speed is v+80
*Wednesday, May 14, 2008 at 2:00am by bobpursley*

**physics**

three point particles are fixed in place in an xy plane. Particle A has mass mA = 3 g, particle B has mass 2.00mA, and particle C has mass 3.00mA. A fourth particle D, with mass 4.00mA, is to be placed near the other three particles. What (a) x coordinate and (b) y coordinate ...
*Sunday, January 2, 2011 at 5:38pm by Anonymous*

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