Wednesday
April 16, 2014

Search: Find the coordinates of the point of intersection of the angle -315º and the unit circle

Number of results: 121,095

Trigonometry
Point P is located at the intersection of the unit circle and the terminal side of angle theta in standard position. Find the coordinates of P to the nearest thousandth.
Monday, September 17, 2012 at 8:40pm by Spencer

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

Geometry
Please Someone Help!!! Find the coordinates of a point on the unit circle corresponding to a 36 degree angle rotation. Find the coordinates of a point on the unit circle corresponding to a 115 degree angle of rotation. Find all angles between 0 degrees and 360 degrees with a ...
Monday, May 10, 2010 at 12:16pm by MEGGG!!!

maths - geometry
In a space with an orthonormal coordinate system consider the plane; &: 4x-3y=12 (a)(i)Find the coordinates of the points of intersection of the plane & with the coordinates axes (=axes intersections???) (ii)Find the parametric equations for the line of intersection of the ...
Wednesday, April 28, 2010 at 10:21am by Anonymous

trig
Point P is located at the intersection of a circle with a radius of r and the terminal side of an angle q. Find the coordinates of p to the nearest hundreth. q = -60 , r = 7
Monday, October 12, 2009 at 7:40pm by kt

Geometry
The points A,B,C,D have coordinates (3,3) (8,0) (-1,1) (-6,4) respectively. Find the coordinates of the point of intersection of the diagonals AC and BD? Help plZ!!!
Wednesday, January 30, 2013 at 7:51pm by Sal

math grade 11
First find the intersection point of these lines and then also take one point from the line y = 2x 3 and calculate the distance from the intersection point to this point on the line. So this distance is equal to the distance fron the intersection point to the point (x,y) on ...
Saturday, April 28, 2012 at 3:28am by DawitGebeyaw

trig
Let  be an angle in standard position and the point (a, b) be the point of intersection of the terminal side of  with the unit circle. State the unit circle definitions of the six trigonometric functions. cos = sec = sin = csc = tan = cot =
Monday, August 13, 2012 at 8:53pm by Anonymous

Geometry
1) find the coordinate of the image of point (1,2) translated left 2 units and reflected over the x -axis 2) Find the coordinate of the image of the point (2, -4) reflected over the x-axis 3) Determine the midpoint of the segment whose endpoints are A(7, 3, -4) and B(-3, 1, 0...
Friday, July 20, 2012 at 4:51pm by Bread

geometry
Point M is the midpoint of AC. Find its coordinates. (1 point)(b + c, d) (a + c, d) (2c + 2c, d) (2b + c, d) 2. Point N is the midpoint of BC. Find its coordinates. (1 point)(b + c, d) (a + c, d) (2a + c, d) What theorem do Exercises 1-4 prove? (1 point)Triangle Inequality ...
Thursday, December 15, 2011 at 3:40pm by brooklynn

Coordinate Geometry
Please help!!!!! The points A,B,C,D have coordinates (3,3), (8,0), (-1,1), (-6,4) respectively. a) Find the gradients of the lines AB and CD b) Show that ABCD is a parallelogram c) Find the coordinates of the point of intersection of the diagnols AC and BD. Please help me by ...
Wednesday, December 19, 2012 at 1:50pm by Jitesh

Calculus please help !
Find the coordinates of the center of the ellipse represented by 4x^2 + 9y^2 18y 27 = 0. For 2x^2 + xy + 2y^2 = 1, find , the angle of rotation about the origin, to the nearest degree. Find the distance between points at (1, 6) and (5, 2). Identify the conic section ...
Friday, April 12, 2013 at 4:46pm by Becca

Maths
In an orthonormal system, you're given the following: Point P(1,2) Lina a=cartesian eqn:4x-3y+6=0 Line b=parametric eqns:x=-5+3& y=-& (real n) Circle z=cartesian eqn:x+y-2x-3=0 (a)Calculate the angle between lines a an b (b)Calculate the coordinates of the point of ...
Sunday, May 4, 2008 at 4:14pm by Anonymous

Mathematics
In an orthonormal system, you're given the following: Point P(1,2) Lina a=cartesian eqn:4x-3y+6=0 Line b=parametric eqns:x=-5+3& y=-& (real n) Circle z=cartesian eqn:x+y-2x-3=0 (a)Calculate the angle between lines a an b (b)Calculate the coordinates of the point of ...
Sunday, May 18, 2008 at 9:14am by Anonymous

Pre-calculus HELP PLEASE !
Find the coordinates of the center of the ellipse represented by 4x^2 + 9y^2 18y 27 = 0. For 2x^2 + xy + 2y^2 = 1, find , the angle of rotation about the origin, to the nearest degree. Find the distance between points at (1, 6) and (5, 2). Identify the conic section ...
Friday, April 12, 2013 at 4:45pm by Becca

college algrebra
Find the coordinates of the point of intersection of the graphs of y = x and y = 6
Wednesday, May 4, 2011 at 4:31pm by Ms. Jackson

trig
I have no idea how to solve this problem. <A is in standard position on a unit circle. Point P (-1/2, -√3/2) is the point of intersection of its terminal side with the unit circle. Find the measure of <A in radians.
Wednesday, June 10, 2009 at 7:30pm by Matt

math
Find the coordinates of the point of intersection of the plane 2x+y-3z+6=0 on the y-axis
Tuesday, March 5, 2013 at 6:14pm by tapz

precal 2
assume angle B = 90, then b has one solution, namely sin88 = 315.6/b b = 315.6/sin88 = 316.79 so there is no solution for b > 316.79 check: let b = 320 find angle B sin88/315.6 = sinB/320 sinB = 320sin88/315.6 = 1.0133.. which is not possible.
Friday, July 29, 2011 at 4:03pm by Reiny

math ASAP
Find the point of intersection L1: r(t)= (-5 + 3t)i + (1+t)j L2= r(s) = (1+2s)i + (5-6s)j I know they are perpendicular, and the system of equations I think is t= 4/5 s =8/5 so how do I find the point of intersection
Saturday, September 14, 2013 at 12:01am by christina

Geometry
I will assume you are dealing with a triangle where the coordinates of the vertices are known. A median is a straight line from a vertex to the midpoint of the opposite side. So pick a side, find the midpoint of that side. Now you have a pair of points, the vertex and the ...
Thursday, January 3, 2008 at 9:55pm by Reiny

Vectors
I am really lost and confused! Consider the lines r = (1,-1,1) + t(3,2,1) and r = (-2,-3,0) + u(1,2,3). a) Find their point of intersection. b) Find a vector equation for the line perpendicular to both of the given lines that passes through their point of intersection. For a I...
Monday, April 7, 2008 at 9:49pm by Alex

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 . My work so far: I set the two equations equal to each other because they intersect. 1+ax=2-(1/2)x and I got, (-1...
Thursday, October 8, 2009 at 7:05pm by SC

geometry
Given the points K=(-2,1) and m(3,4), find coordinates for a point J that makes angle JKM a right angle.
Thursday, September 8, 2011 at 7:17pm by zach

Math
Find the intersection point. 3x+2y = 3 2x+10y = -5 I put them into y=mx+b form and got y=-3/2 + 3/2 y=1/5x - 1/2 I can't seem to find the intersection point by graphing it either, since it won't be accurate.
Saturday, September 8, 2012 at 5:52pm by Vanessa

Precalculus
The figure shows part of a curve traced by a point on the circumference of a circle of radius 4 that rotates, without slipping, around a fixed circle of radius 2. The rotating circle starts with angle t = 0 radians and the point P (x, y) at (10, 0). In this problem you will ...
Friday, January 20, 2012 at 3:42pm by Anon

maths-urgently needed
In right angled triangle ABC angle B=90 degree and AB= root 34 unit. The coordinates of point B and Care (4,2)and (-1,y) respectively. If area of triangle ABC = 17 sq.units, then find value of y.
Tuesday, February 12, 2013 at 9:10am by Anonymous

Math
The unit circle is the graph of x^2 + y^2 = 1. The radius vector is viewed as the hyp. of a rt triangle and has a magnitude of 1. A vector is assumed to rotate CCW. So if we start at 0 deg and calculate the coordinates of the point where the vector intersects the circle, we ...
Tuesday, October 26, 2010 at 11:13pm by Henry

Math-Linear Systems
Determine the point of intersection. (a) y = 4x + 6 y = -x + 1 (b) 2x + 5y = 10 x = 10 Please show how to get the point of intersection. thoroughly explain how to get point of intersection.
Sunday, June 14, 2009 at 12:50pm by Sideshow

calculus
let f be the function f(x) = x^3 + 3x^2 - x + 2 a. the tangent to the graph of f at the point P = (-2,8) intersects the graph of f again at the point Q. Find the coordinates of point Q. b. Find the coordinates of point R, the inflection point of the graph of f c. Show that the...
Tuesday, March 23, 2010 at 11:31pm by mary

trig
Given the polar coordinates of a point, how do I find the rectangular coordinates? (2, 3pi/4) (-4, 7pi/6) (2/3, -2pi/3) Given the rectangular coordinates of a point, how do I find the polar coordinates? (4, 0) (3, 4) (2, -2)
Monday, March 1, 2010 at 8:39pm by BT

algebra 2
You should become familiar with two important special triangles 1. the 45-45-90 right-angled triangle whose sides are in the ratio 1 : 1 : √2 2. the 30-60-90 right-angled triangle whose sides are in the ratio of 1 : √3 : 2 The question to find sin 315 probably ...
Sunday, May 16, 2010 at 9:14am by Reiny

math
Quadrilateral ABCD is a square. The coordinates of point A are (3,2), coordinates of point B are (-3,2),and the coordinates of points C are (-3,-4). where on a coordinate plane would I mark the location of point D??
Thursday, March 29, 2012 at 10:02pm by Dennis

MAtH
I you make a sketch you will find the the greatest slope (the steepest) happens at the first intersection point. that is, when x = π/6 (cos π/6 = 1/2) so the intersection point is (π/6 , 1/2) so find the slope from (0,0) to that point
Tuesday, January 18, 2011 at 9:09am by Reiny

Math
I have a series of questions that I did. They lead up to the last question I can't solve. Could you check my math and help me with the last question? Thanks! a) Let a be the point (2,3). Compute the distance from Origin 0 to A answer: a^2 + b^2 = c^2 3^2 + 2^2 = c^2 c=sqrt(13...
Thursday, October 14, 2010 at 2:21pm by Shane

trig
find the coordinates of the terminal point on the unit circle determined by t=9pt/7 to two decimal places
Sunday, November 13, 2011 at 6:56pm by Kristin

Precalc
For #1-3, an angle of rotation and ( x prime, y prime) coordinates are given. find the (x,y) coordinates? 1. angle= 30 degress, ( root 3, 2) 2. angle= 60 degrees, (-1,1) 3. angle = 45 degrees, ( root 2, - root2)
Tuesday, April 30, 2013 at 6:48pm by Rebekah

Math
The rectangular coordinates of a point are given. Find two sets of polar coordinates for the point. (-3,-3)
Sunday, May 2, 2010 at 5:32pm by Abbey(Please help)

math
On the unit circle the coordinates of P(theta) are (0.588, 0.809). Find the coordinates of P(2theta). Please help.
Tuesday, January 11, 2011 at 2:43pm by Jack

Anonymous
Give the exact intersection point for the equations f(x)=4sin^2x+7sinx+6 and g(x)=2cos^2x-4sinx+11 Ok, my result is that there is no intersection point because if you put f(x)=g(x) and try to solve for x or the intersection point, the LS f(x) is not possible, so there is none...
Friday, May 8, 2009 at 2:54pm by trig

Math
plot the point given in polar coordinates and find the corresponding rectangular coordinates for the point. (-1 , -3pi/4) I do not understand.
Friday, April 30, 2010 at 3:57pm by Abbey(Please help)

geometry
the coordinates of point S are given. the midpoing of RS is (6,-10). find the coordinates of point r. s(0,8)
Tuesday, September 11, 2012 at 10:17pm by rose

Calculus
With y=f(x) (2x-10)^1/2 having a virtual line joined at point Q from the origin (0,0), determine the coordinates of point Q that maximises the angle of vision of an observer, situated at the origin, following the movement of point Q along the curve. Note that tan (theta symbol...
Tuesday, November 15, 2011 at 5:06pm by Jim

analytic geometry
"Find smallest angle of intersection of the plane of 5x-14y+2z-8=0 and 10x-11y+2z+5=0 (Find angle between the normals)". Please check accuracy of translation. The normal vectors are (5,-14,2) and (10,-11,2). We find the unit normal vectors: (5,-14,2)/√(5²+(-14)²...
Thursday, April 14, 2011 at 5:48am by MathMate

Geometry
Help? The midpoint of (segment)AB is M(7,5). The coordinates of point A are (4,1). Find the coordinates of point B.
Monday, September 30, 2013 at 8:00pm by Amy

Math
A point in polar coordinates is given, Find the corresponding rectangular coordinates for the point. (r,Q) = (4, 3pi/2) I know that you are suppose to use x=r cos Q and y=sin Q but I do not know how to plug this in.
Saturday, April 17, 2010 at 8:30pm by Abbey(Please help)

math help
13. Write a translation rule that maps point D(7, 3) onto point D'(2, 5). 14. Triangle ABC has coordinates A(1, 4); B(3, 2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis
Tuesday, October 9, 2012 at 5:59pm by jman

Geometry
Find the point of intersection of the lines in terms of a,b,c,p,q and r. If I did my math right, the coordinates are x' = (rb-cq)/(aq-bp) and y' = (cp-ar)/(aq-bp) Any line passing though the intersection can be written y-y' = m (x - x') where m is an arbitrary constant. L1 + ...
Monday, February 18, 2008 at 1:21am by drwls

Geometry
line segment ab is the diameter of circle O whose center has coordinates (6,8) . what are the coordinates of point b if the coordinates of point a are (4,2)
Thursday, February 28, 2013 at 5:34pm by C

Geometry
line segment ab is the diameter of circle O whose center has coordinates (6,8) . what are the coordinates of point b if the coordinates of point a are (4,2)
Thursday, February 28, 2013 at 5:35pm by C

precal
can anyone help me with this question. Let P be the point on the unit circle U that corresponds to t. Find the coordinates of P and the exact values of the trig functions of t, whenever possible. (a) -pi (b) 6pi
Wednesday, September 23, 2009 at 2:37pm by latrice

2 math questions
13. Write a translation rule that maps point D(7, 3) onto point D'(2, 5). 14. Triangle ABC has coordinates A(1, 4); B(3, 2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis
Tuesday, October 9, 2012 at 5:05pm by jman

Trigonometry
1) If P'(2,-6) is the image of point P after the dilation D(to the 2nd power), what are the coordinates of point P? 2) A transformation maps (x,y) onto (x+2, y-1). Find the coordinates of A', the image of point A(-2,6) under the same transformation.
Wednesday, February 24, 2010 at 9:40pm by Tyler

math
solve the simultaneous equations to find the coordinates of the point of intersection for the pair of lines of the simultaneous equations. Then check the answer by graphing the equations 3x-y=-4 2x-y=0
Saturday, October 16, 2010 at 9:19pm by Lauren

phy
a watermelon seed has the following coordinates: x= -5.0, y = 8.0m, and z = 0m. find its position vector (a) in unit-vector notation and as (b) a magnitude and (c) an angle relative to the positive direction of the x axis (d) sketch the vector on the right-handed coordinate (3...
Saturday, February 9, 2013 at 7:32am by stephen

calculus (correction)
The trangular area beneath the y = mx from 0 to the intersection point is not all of the region you need to integrate. Another portion, from the intersection point to x=2, lies below the y= 2x-x^2 parabola. You can require instead that the area between y=mx and y = 2x -x^2 ...
Sunday, January 6, 2008 at 8:39am by drwls

math
Alright, let's say you want to get from one point to another, in a 3D box. all points have an x, y and z coordinate. Point A has coordinates (25,30,5) while Point B has coordinates (50,26,18). The only given variable other than the coordinates is the speed you are traveling. ...
Tuesday, May 27, 2008 at 10:16pm by Jesse

Calc problem
Consider the function y=(kx)/(x-k) a. Show that y is symmetric with respect to the line y=x. b. Write the equations of the horizontal and vertical asymptotes of y. c. Find the point(s) of intersection of y with the line x-y=-2k, and find the slope of the tangent line at the ...
Saturday, February 23, 2008 at 5:43pm by Holly

Algebra II
remember the cotangent is 1/tangent so find tan(-315) -315 is the same as 45 so tan(-315) = tan 45 = 1 (from our 45,45 90 triangle) so cot(-315) = 1/1 = 1
Sunday, April 6, 2008 at 10:25am by Reiny

TRIGONOMETRY
3. The rectangular coordinates of a point are given. Find the polar coordinates of each point. b. (0,3) I figured out a, but I canNOT figure out b. Can someone please explain? :)I need to know how to do this for my final next week.
Thursday, May 16, 2013 at 1:38pm by Kate

precalculus
graph the parabola y=2x^2-6x-3. plot point on the parabola A[1,-7] and draw a line through A with an angle of inclination equal to 30 degrees. then find the equation of the line and its second point of intersection B, with the parabola
Monday, November 28, 2011 at 11:51am by jan

Calculus
10. Consider the lines [x,y,z] = [4,7,-1] + t[4,8,-4] and [x,y,z] = [1,5,4] + s[-1,2,3]. a) Show that the lines intersect at the right angle. b) find the point of intersection. please and thanks!
Sunday, May 6, 2012 at 1:56am by J

Calculus
A circle C has center at the origin and radius 9. Another circle K has a diameter with one end at the origin and the other end at the point (0,17). The circles C and K intersect in two points. Let P be the point of intersection of C and K which lies in the first quadrant. Let...
Friday, February 5, 2010 at 6:57am by Salman

Calculus
A circle C has center at the origin and radius 9. Another circle K has a diameter with one end at the origin and the other end at the point (0,17). The circles C and K intersect in two points. Let P be the point of intersection of C and K which lies in the first quadrant. Let...
Friday, February 5, 2010 at 6:24pm by Salman

Math
A circle C has center at the origin and radius 9. Another circle K has a diameter with one end at the origin and the other end at the point (0,17). The circles C and K intersect in two points. Let P be the point of intersection of C and K which lies in the first quadrant. Let...
Friday, February 5, 2010 at 6:24pm by Salman

Maths
A circle C has center at the origin and radius 9. Another circle K has a diameter with one end at the origin and the other end at the point (0,17). The circles C and K intersect in two points. Let P be the point of intersection of C and K which lies in the first quadrant. Let...
Friday, February 5, 2010 at 6:25pm by Salman

Math
The position vectors A and B with respect to the origin O,(-8,5) are (12,-5)and respectively. Point M is the midpoint of AB and N is the midpoint of OA. (a) Find: (i) The coordinates of N and M; (ii) The magnitude of NM, (b) Express vector NM in term OB. (c) Point P maps onto...
Tuesday, October 16, 2012 at 8:34pm by Anonymous

math
The position vectors of points A and B with respect to the origin 0, are (-8,5) and (12,-5) respectively. Point M is the midpoint of B and N is the midpoint of OA. (a) Find: (i) The coordinates of N and M (ii) The magnitude of NM (b) Express vector NM in terms of OB (c) Point ...
Monday, October 7, 2013 at 1:38pm by kg

math
The position vectors of points A and B with respect to the origin 0, are (-8,5) and (12,-5) respectively. Point M is the midpoint of B and N is the midpoint of OA. (a) Find: (i) The coordinates of N and M (ii) The magnitude of NM (b) Express vector NM in terms of OB (c) Point ...
Monday, October 7, 2013 at 3:58pm by Kg

calculus
Determine the coordinates of the point of intersection of the two perpendicular lines that intersect on the y-axis and are both tangent to the parabola given below. y = 3x2
Sunday, October 3, 2010 at 2:22pm by c

geometry
the mid point of ef is (-3,7). the coordinates of e are (-3,10. find the coordinates of f.
Friday, September 10, 2010 at 7:13pm by owsbaldo

geometry
the mid point of ef is (-3,7). the coordinates of e are (-3,10. find the coordinates of f.
Friday, September 10, 2010 at 7:13pm by Anonymous

math
Question-2; Consider the function f(x)= -cos3x -4sin3x. (a)Find the equation of the line normal to the graph of f(x) when x= pie/6 . (b)Find the x coordinates of the points on the graph of f(x) where the tangent to the graph is horizontal. (c)Find the absolute extrema of the ...
Saturday, April 21, 2012 at 6:36pm by weloo_volley

precalc
I;m not sure if i am doing this right...I keep getting a negative intersection point, which doesn't seem possible. Please help! a) find the equatoin of line 1 which passes through (1,3) and (9,7) I get y=3+1/2(x+1)or y=1/2x+2.5 b) the line 2 is perpedicular to line 1 and ...
Monday, September 10, 2012 at 2:11pm by Anonymous

Pre-Calculus
Find the rectangular coordinates of the point with the given polar coordinates. (3, 150)
Thursday, March 13, 2014 at 3:15pm by Alexis

trig
Let P be the point on the unit circle U that corresponds to t. Find the coordinates of P and the exact values of the trigonometric functions of t whenever possible. 2pi 3pi/4 5pi/6 Three questions. I think those are supposed to be t.
Sunday, February 26, 2012 at 4:10pm by Carter

Trigonometry
1)Find the polar coordinates of the point whose rectangular coordinates are (4, -4). 2)Find the polar coordinates of the point whose rectangular coordinates are (-3,-3). 3)Find the rectangular coordinates of the point whose polar coordinates are (-4, /6) 4)Find the ...
Wednesday, July 4, 2007 at 7:01am by Theresa

Pre-Calculus
Find the polar coordinates of each point with the given rectangular coordinates. Use degrees. (-4,-3)
Thursday, March 13, 2014 at 3:25pm by Alexis

Unit Circle
How do I find tan(-pi/4) from the unit circle? Thanks. Go 45 degrees clockwise or reverse of the circle, it should be at 315 degrees.
Monday, February 26, 2007 at 9:42pm by Jen

geometry
Triangle PQR has vertices P(1,2), Q(25,2) and R(10,20). Find the coordinates of the centroid. Find the coordinates of the circumcenter. Find the coordinates of the orthocenter. Find the equation of the line.
Sunday, April 24, 2011 at 4:40pm by Ginny

Algebra II-Reiny could you relook at my comments,please?
I'm not suppose to copy the coordinates off the unit circle-I'm suppose to actually solve for the coordinates-like how do you get the coordinates for 60 degrees? that's where I'm confused
Monday, January 3, 2011 at 10:42am by JessieLynne

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 ft.) Plane B is ...
Tuesday, October 1, 2013 at 11:21am by Anonymous

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 ft.) Plane B is ...
Tuesday, October 1, 2013 at 11:27am by Anonymous

trig
Find the value of secant theta for angle theta in standard position if a point with coordinates (-3/4) lies on its terminal side
Monday, December 20, 2010 at 10:18pm by Mallory

trig
Find the value of secant theta for angle theta in standard position if a point with coordinates (-3/4) lies on its terminal side
Monday, December 20, 2010 at 10:33pm by Mallory

Math Trig
Find the values of the six trigonometric functions of an angle in standard position if the point with coordinates (12, 5) lies on its terminal side? Please explain how!
Tuesday, October 16, 2012 at 9:56am by Laytin

Math Trig
Find the values of the six trigonometric functions of an angle in standard position if the point with coordinates (12, 5) lies on its terminal side? Please explain how!
Tuesday, October 16, 2012 at 9:56am by Laytin

Algebra
Correct! But continue reading... The diagonals of a parallelogram intersect at each other's mid-point. By finding the mid-point of each of the diagonals, you will get the intersection point. However, it would be wise to check the mid-points of both diagonals to see if they ...
Sunday, June 13, 2010 at 8:49pm by MathMate

calculus
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 429 knots (nautical miles per hour; a nautical mile is 2000 yd or 6000 ft.) Plane B is ...
Thursday, September 27, 2012 at 7:00pm by Avi

Orthocenter Question
the orthocentre is the intersection of the altutides. Method: Find the equation of two of those altitudes. Solve the two equations to find their intersection point. How? Make a rough sketch Pick any point and find the slope of the opposite side. The slope of the altitude to ...
Tuesday, January 3, 2012 at 12:25pm by Reiny

trig
let P be a point in Q1 such that the slope of the line connecting P to the origin is sq. root of 2 and the distance from P to the origin is 3 units. Find the coordinates of P, state all trig values for angle formed by the line and the positive x-axis, and the measure of said ...
Tuesday, October 25, 2011 at 8:48pm by Chelci

Calculus (trig stuff)
on the units circle, the radius must be 1. You can use the radius and the angle to find the point in both polar and rectangular coordinates.
Tuesday, October 27, 2009 at 4:30pm by Marth

TRIGONOMETRY
Polar coordinates are usually R (radius) and angle from the x axis (theta). Theta is usually measured in radians. Use these formulas to convert: theta = arcttan y/x R = sqrt(x^2 + y^2) (a) (4,0) in (x,y) coordinates becomes (4,0) in polar (R,theta) coordinates (b) (0,3) in (x,...
Thursday, May 16, 2013 at 11:13am by drwls

Geometry
Lines l and m have an intersection at point O and any reflection in l followed by a reflection in m results in a rotation about point O of 136 degrees. What is the acute angle between l and m? Thank you!!
Saturday, May 15, 2010 at 7:17pm by DJ

algebra
When solving a system containing 2 Eqs, the point of intersection is the solution. The system may be solved algebraically or by graphing. When solving algebraically, you use the Elimination or Substitution Method. The coordinates of the point calculated is the solution. When ...
Thursday, January 13, 2011 at 2:05pm by Henry

Calculus
Explain fully please and thank you! =) Determine the point of intersection of the lines L1: r= (1,3,7) + s(1,2,-2),seR and L2: v=(0,2,-3) +t(1,1,4), teR. a) P(1,3,1) b P(1,3,7) c) The lines coincide d) no point of intersection
Saturday, April 7, 2012 at 1:53pm by Melissa

Geometry
Line AB (0,0) is perpendicular to line BN (3,4) in the diagram at the right. Angle B is a 90 degree angle. What are the coordinates of point N?
Wednesday, December 7, 2011 at 2:54pm by Rachel

Pre Cal
Let P be the point on the unit circle U that corresponds to t. Find the coordinates of P and the exact values of the trigonometric functions of t, whenever possible. (If there is no solution, enter NO SOLUTION.) 9pi/4 Looking for sin, cos, tan,cot, csc, and sec
Wednesday, February 10, 2010 at 12:23pm by Karmen

Calc
Consider a circle of radius 2 and a point P rotating around it. The angle θ, in radians, is given as a function of time t. (a) What is the value of θ when t=1.5? (b) Find the coordinates of P when t=1.5
Saturday, January 15, 2011 at 4:18pm by Stephanie

Calc
When you are solving for the point of intersection between planes do you follow the same steps when solve for the point of intersection between lines?
Sunday, October 17, 2010 at 10:26pm by C

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