Friday

August 29, 2014

August 29, 2014

Number of results: 97,530

**Math- How many points of intersection are there? **

Let x1, x2,..., x20 be distinct points on the x-axis and let y1, y2,...,y13 be distinct points on the y-axis. For each pair xi, yi, draw the segment connecting xi yo y1. Assume that no three of these segments intersect in one point. How many points of intersection are there...
*January 23, 2013 by Thank You*

**math**

weloo Consider the two parabolas :y1=2x^2-3x-1 and y2=x^2+7x+20. (a) Find the points of intersection of the parabolas and decide which one is greater than the other between the intersection points. (b) Compute the area enclosed by the two parabolas. (c) Use Mathcad to draw the...
*May 8, 2012 by weloo_volley*

**math**

hilp meeee trying .... Consider the two parabolas :y1=2x^2-3x-1 and y2=x^2+7x+20. (a) Find the points of intersection of the parabolas and decide which one is greater than the other between the intersection points. (b) Compute the area enclosed by the two parabolas. (c) Use ...
*April 24, 2012 by weloo_volley*

**math**

hilp meeee trying .... Consider the two parabolas :y1=2x^2-3x-1 and y2=x^2+7x+20. (a) Find the points of intersection of the parabolas and decide which one is greater than the other between the intersection points. (b) Compute the area enclosed by the two parabolas. (c) Use ...
*April 30, 2012 by weloo_volley*

**Calculus**

Find the points of intersection for y=e^x and y=sin(2x). are there an infamous (sp?) number of points of intersection for these equations?
*August 22, 2011 by katie*

**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 ...
*April 21, 2012 by weloo_volley*

**math**

set operations A^c = (A complement) B^c = (B complement) A^c intersection B^c intersection C no parenthesis :// do i get the intersection of all three or get the intersection of A^c and B^c first?
*June 26, 2011 by rose*

**Math**

How do you solve for the intersection points? x^2+y^2=25 4y=3x I know the points are (4,3) and (-4,-3) but how do you get this algebraically?
*October 2, 2007 by Anonymous*

**Math**

Determine whether the following statements are always,sometime, or never true.Explain 1.Three points determine a plane. 2.The intersection of two planes can be a point. 1.Never true, the three points must be noncollinear. 2.Never true, the intersection of two planes is a line...
*October 6, 2010 by Shadow*

**Math**

The graphs of y= x^2 - 8x - 35 and y= -2(x^2) + 16x +3 intersect in two points. What is the sum of the x-coordinates of the two points of intersection?
*February 2, 2011 by K*

**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).
*February 2, 2013 by Brenda*

**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).
*February 2, 2013 by Brenda*

**math**

What are the intersection points of y = 1/x and y = 1/x^2? Is it x = 0 and x = 1? Thank You
*April 9, 2013 by Sam*

**math**

points of intersection of f(x)=3x-5 and g(x)=-4+9
*October 29, 2013 by Alexis*

**Geometry**

Which does not represent a possible intersection of a line and a right cylinder? a. 3 points b. 2 points c. 1 point d. a segment A?
*January 7, 2012 by Lily*

**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.
*June 14, 2009 by Sideshow*

**Math 11university**

Determin the points of intersection algebraically : f(x)=-x(squared) +6x-5, g(x)=-4x+19
*July 13, 2010 by Kerry*

**math**

find the points of intersection of the following pairs of equations. a. y=x^2 and y=x +2 b. y=x^2 and y=8-x^2 c. y=x^2 and x=y^2
*April 23, 2013 by sarah*

**Math**

Find the points of intersection of the parabolas y=1/2x^2 and y=1-1/2x^2. Show that at each of these points the tangent lines to the two parabolas are similar Answer (+-1,1/2) Please show and explain all steps thank yo
*November 6, 2013 by Jason*

**math**

n the xy -plane, the graph of y = x^2 and the circle with center (0,1) and radius 3 have how many points of intersection?
*April 1, 2013 by naomie*

**Math**

Find the intersection. {2,5,7,10} and {3,6,9}. I think that the intersection is a empty set. Is this correct? Thanks.
*April 7, 2010 by B.B.*

**Engineering skill**

anybody here to give me notes to solve this question (A and B are two points on a pipe of diameter 600 mm. the grid reference for the two points are given in the below , together with the elevation of the top of the pipe at these points. A drain pipe is being planned, and P ...
*May 10, 2014 by Bedar*

**Math**

What is the greatest number of points of intersection with three circles that have 6 intersections using four straight lines?
*April 25, 2013 by Elizabeth*

**Math**

A car is heading east toward an intersection at the rate of 40 mph. A truck is heading south, away from the same intersection at the rate of 60 mph. At what rate is the distance between the car and the truck changing when the car is 8 miles from the intersection and the truck ...
*July 31, 2011 by eve*

**Math**

A car is heading east toward an intersection at the rate of 40 mph. A truck is heading south, away from the same intersection at the rate of 60 mph. At what rate is the distance between the car and the truck changing when the car is 8 miles from the intersection and the truck ...
*July 31, 2011 by eve*

**Algebra 2...**

On isometric dot paper, graph the system of equations at right. What shape is their intersection? Use color to show the intersection clearly on your graph. 10x + 6y + 5z = 30 6x + 15y + 5z = 30 Is the intersection where the two planes OVERLAP?
*March 9, 2013 by Anonymous*

**Algebra 2**

How many points of intersection are there for x-y=2 and x^2+y^2=25 ?
*May 8, 2012 by Sira*

**Calculus**

The area bounded between the line y=x+4 and the quadratic function y=(x^2)-2x. Hint: Draw the region and find the intersection of the two graphs. Add and subtract areas until the appropriate area is found. I found the intersection points as (-1,3) and (4,8). I'm not sure what ...
*May 9, 2011 by Janet*

**Math -Quadratics Help!**

I have a test tomorrow with a few sample questions that are expected to be on the test that I do not know how to properly do. 1)Find the slope intercept equation of the line passing through the intersection of the lines 2x-4y=1 & 3x+4y=4 and parallel to the line 5x+7y+3=0 2)...
*March 23, 2014 by JBregz*

**Math - Quadratics & Analytical Geometry**

I have a test tomorrow with a few sample questions that are expected to be on the test that I do not know how to properly do. 1)Find the slope intercept equation of the line passing through the intersection of the lines 2x-4y=1 & 3x+4y=4 and parallel to the line 5x+7y+3=0 2)...
*March 23, 2014 by Jay*

**math $$**

The graph of 5x-2y=10 intersects the x-axis and y-axis what are the order pairs for these two points of intersection? A.(2,0) and (0,5) B.(2,0) and (0,-5) C.(-2,0) and (0,5) D.(-2,0) and (0,-5)
*February 21, 2013 by Angie *

**math $$**

The graph of 5x-2y=10 intersects the x-axis and y-axis what are the order pairs for these two points of intersection? A.(2,0) and (0,5) B.(2,0) and (0,-5) C.(-2,0) and (0,5) D.(-2,0) and (0,-5)
*February 21, 2013 by Angie *

**algebra 2 **

How do you find the points of intersection, if any, of the equations: x^2 + y^2 = 5 x - y = 1
*September 6, 2011 by Trixie*

**algebra 2 part 1**

find the points of intersection of f(x)=3x-5 and g(x)=-4+9
*October 29, 2013 by Alexis*

**math**

x = 3 - y^2 y = x - 3 Find the points of intersection. If someone could even get me to the point where it gets written in general form (both equations set to 0..) I would be forever grateful.
*January 20, 2009 by strawerryfields*

**Math**

Find all the points of intersection of the surfaces whose equations are as follows: z^2 = 2xy - 100 and x^2 + 2y^2 - 100 ---------------- 2y
*October 20, 2008 by Josh*

**Math**

Find all the points of intersection of the surfaces whose equations are as follows: z^2 = 2xy - 100 and x^2 + 2y^2 - 100 --------------------- 2y
*October 20, 2008 by Josh*

**math**

Hello, I need help finding the intersection points B and C of the tangent A with for horizontal axis B and the vertical axis C. hyperbola: f (x) = 1 / x A = (1, 1) Thanks for your help .
*March 5, 2012 by Sébastien*

**Math**

What is the maximum number of points of intersection of two different lines and three different circles in the same plane?
*December 6, 2013 by Xian*

**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) ...
*October 9, 2009 by SC*

**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...
*May 8, 2009 by trig*

**Algebra**

How many different points of intersection are there for x + y = 7 and y = x squared minus 7?
*February 27, 2011 by Jack*

**calculus**

Find the points of intersection of the curves y=2sin(x-3) and y=-4x^2 + 2
*September 3, 2011 by Bob*

**calculus **

find the points of intersection of the parabolas Y=(1r2 x^2) and Y=10x - 2.
*February 18, 2010 by Anonymous*

**calculus **

find the points of intersection of the parabolas Y=(1r2 x^2) and Y=10x - 2.
*February 18, 2010 by Anonymous*

**Math**

Consider the functions defined by f(x)=sin2x and g9x)=1/2tanx for x E[-90^0; 180^0] Questions 1. Sketch the graphs of f and g on the same system of axes. 2. Calculate the x-coordinates of the points of intersection of f and g. 3. Determine the values of x for which g(x)>f(x).
*May 28, 2010 by Musa*

**Math**

When graphing two linear equations, what is the significance of the intersection of the two graphs, and if there is no intersection?
*March 18, 2010 by Mark*

**pre cal**

how do you solve f(x)= G(X) and find the points of intersection of the graphs of the 2 functions f(x)= x^2 + 5x+ 13 g(x)= 19
*October 26, 2011 by xyz*

**pre cal**

how do you solve f(x)= G(X) and find the points of intersection of the graphs of the 2 functions f(x)= x^2 + 5x+ 13 g(x)= 19
*October 26, 2011 by xyz*

**mathematics**

write the number of points of intersection of 2y=1 and y= sinx. -2pi<_x<_2pi
*September 20, 2012 by edward*

**physics**

A Boeing 747 "Jumbo Jet" has a length of 59.7 m. The runway on which the plane lands intersects another runway. The width of the intersection is 21.3 m. The plane decelerates through the intersection at a rate of 5.33 m/s2 and clears it with a final speed of 38.3 m/s. How ...
*February 7, 2011 by shaknocka*

**physics**

A Boeing 747 "Jumbo Jet" has a length of 59.7 m. The runway on which the plane lands intersects another runway. The width of the intersection is 21.3 m. The plane decelerates through the intersection at a rate of 5.33 m/s2 and clears it with a final speed of 38.3 m/s. How ...
*February 7, 2011 by shaknocka*

**physics**

A Boeing 747 "Jumbo Jet" has a length of 59.7 m. The runway on which the plane lands intersects another runway. The width of the intersection is 21.3 m. The plane decelerates through the intersection at a rate of 5.33 m/s2 and clears it with a final speed of 38.3 m/s. How much...
*February 23, 2011 by tish*

**Physics**

A Boeing 747 "Jumbo Jet" has a length of 59.7m. The runway on which the plane lands intersects another runway. The width of the intersection is 25.0m. The plane decelerates through the intersection at a rate of 5.7 m/s(squared) and clears it with a final speed of 45.0 m/s. How...
*February 20, 2011 by CR*

**FREE BODY DIAGRAM calculus**

A car is traveling north towards an intersection at 60mph at the same time a truck is headed east toward the same intersection at 45mph. Find the rate of change of the distance between the car and truck when the car is 3 miles south of the intersection and the truck is 4 miles...
*October 7, 2012 by erica*

**calculus**

determine the point of intersection of the tangents at the points of inflection to the curve f(x)= x^4 – 24x^2 – 2
*March 28, 2013 by samantha*

**geometry**

n the xy -plane, the graph of y = x^2 and the circle with center (0,1) and radius 3 have how many points of intersection?
*April 2, 2013 by naomie*

**University Physics**

Consider this traffic problem that is played out in many communities everyday! A car is cruising down the highway of life @ 25m/s in a 3-m long compact car when he comes upon an intersection with a stop sign. At the instant that he is 45 m away from the entrance to the ...
*February 12, 2013 by Amy*

**college - physics**

was wondering if someone can help me out. Question: a jet has a length of 59.7 meters. The runway on which the plane lands intersects another runway. The width of the intersection is 25m. the plane decelerates thru the intersection at a rate of 5.70 m/s^2 and clears it with a ...
*October 5, 2008 by ksunhsine*

**economics**

After 17 vehicular accidents two years ago in a given intersection, the mayor of Boulder proposed to reduce the number of crashes by making improvements at the intersection. Assuming the appropriate CRF is 0.53, what will be the reduction in number of crashes at that ...
*February 10, 2014 by john*

**Mathematics**

The difference between the x-coordinates of two points on the parabola y^2=4ax is fixed at 2k. Find the equation that describes the position(xp, py)of the point of intersection P of the tangents at the two points. The equation is in the form yp^2=f(xp). Hence show that 4axp<...
*December 18, 2010 by Louis*

**Physics**

You are driving to the grocery store at 14.8 m/s. You are 140.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.440 s and that your car brakes with constant acceleration. You are 133 m from the intersection when you begin to apply ...
*October 6, 2010 by Emily*

**Physics**

You are driving to the grocery store at 14.8 m/s. You are 140.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.440 s and that your car brakes with constant acceleration. You are 133 m from the intersection when you begin to apply ...
*October 6, 2010 by Emily*

**Physics**

You are driving to the grocery store at 14.8 m/s. You are 140.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.440 s and that your car brakes with constant acceleration. You are 133 m from the intersection when you begin to apply ...
*October 6, 2010 by Emily*

**Physics**

You are driving to the grocery store at 11.9m/s. You are 169.0m from an intersection when the traffic light turns red. Assume that your reaction time is 0.730s and that your car brakes with constant acceleration. How far are you from the intersection when you begin to apply ...
*September 26, 2012 by Sarah*

**Trig-desperate**

f(x)=sin2x and g(x)=1/2tanx for x is the element of [-90;180] 8.1)calculate the x-coordinates of the points of intersection of f and g.
*April 8, 2012 by Piwo*

**Calculus**

Find the area between the two curves y1= x^2 - 4x + 5 and y2 = 2x - 3, finding the points of intersection algebraically.
*May 27, 2013 by Davey*

**Calculus Grade 12**

Without solving , determine the points of intersection of the line r= (5,-9,3) +k (1,-12,2] and the plane [x,y,z]= (4,-15,-8) + s[1,-3,1] + t[2,3,1], if any exist.
*June 10, 2013 by Baljinder*

**maths**

Find the coordinates of the points of intersection of the straight line y = 3x - 6 with the parabola y = x^2 - 6x + 8 and solve Graphically.
*May 12, 2014 by Shane*

**AP CALC**

Two roads intersect at right angles. At a certain moment, one bicyclist is 8 miles due NORTH of the intersection traveling TOWARDS the intersection at a rate of 16 miles/hour. A second bicyclist is 10 miles due WEST of the intersection traveling AWAY from the intersection at ...
*November 6, 2010 by Nel*

**Math**

Please help me.... Two cars are starting from positions that are 20 miles apart. They are both headed for the same intersection, as depicted in the diagram below. Car A is traveling at 30 mph, and Car B is traveling at 45 mph. Which car will reach the intersection first? 1. ...
*January 8, 2014 by Lizzie098*

**physics**

You are driving to the grocery store at 12.2 m/s. You are 193.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.790 s and that your car brakes with constant acceleration. How far are you from the intersection when you begin to apply...
*October 8, 2008 by Vishnu*

**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 ...
*April 28, 2010 by Anonymous*

**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.
*September 8, 2012 by Vanessa*

**maths**

Find the coordinates of the points of intersection of the straight line y = 3x - 6 with the parabola y = x^2 - 6x + 8. a) Graphically b)Prove your answer in (a) algebraically
*May 2, 2014 by Shane*

**math**

In a reference (O, i, j), the points A (-12, 1150) and B (10, -500). The function f is defined on (-20, 10) by: f(x) = x^ 4 +2.25 x^3-44.5x^2-260x+100 We note Cf his(her,its) representative curve. We try to determine all the points of intersection of the curve Cf and the line...
*September 25, 2011 by thariq*

**Physics**

You are driving to the grocery store at 20 m/s . You are 110m from an intersection when the traffic light turns red. Assume that your reaction time is 0.50s and that your car brakes with constant acceleration. _ How far are you from the intersection when you begin to apply the...
*August 25, 2008 by Angie*

**maths pleaaaase**

The point X and Y are 8cm apart Draw a scale drawing of the diagram and draw the locus of points that are equidistant from both points X and Y what do they mean by equidistant Equidistant means the same distance. I'm not a teacher, but I would imagine that all points ...
*May 2, 2007 by Mrs. Cunniffe*

**math**

Last question. If I have found all of the linear equations and have all of the intersection points for this feasible region, how do I calculate the maximum and minimum using the given function f(x,y)=-x+3y?
*December 30, 2008 by ABCD*

**Calculus**

A car leaves an intersection traveling west. Its position 5 sec later is 22 ft from the intersection. At the same time, another car leaves the same intersection heading north so that its position 5 sec later is 27 ft from the intersection. If the speed of the cars at that ...
*June 13, 2013 by Mike*

**algebra 2**

find the points of intersection of the following algebraically y=2^x + 4^x y=2^x+1 - 4^x+1 I set them equal to each other but not sure if you use logs or what to solve it
*August 10, 2010 by jonathan*

**Physics II**

two perpendicular, long, straight wires, both of which lie in the plane of the paper. The current in each of the wires is I = 4.5 A. In the drawing dH = 0.13 m and dV = 0.48 m. Find the magnitudes of the net magnetic fields at points A and B. The drawing shows one horizontal ...
*February 12, 2012 by Mareena*

**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 ...
*April 12, 2013 by Becca*

**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
*September 14, 2013 by christina*

**PC Training & Business College**

if 14 accidents can be expected at a certain intersection per week, what is the probability that there will be 3 accident at the intersection on a given day
*May 5, 2011 by Halalisanio*

**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 ...
*October 1, 2013 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 ...
*October 1, 2013 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 ...
*April 12, 2013 by Becca*

**GEOMETRY......circle**

Circles Γ1 and Γ2 intersect at 2 distinct points A and B. A line l through A intersects Γ1 and Γ2 at points C and D, respectively. Point E is the intersection of the tangent to Γ1 at C and the tangent to Γ2 at D. If ∠CBD=30∘, what is ...
*April 18, 2013 by HELP ME...uRGENT!*

**Math**

In an experiment, a pair of dice is rolled and the total number of points observed. (a) List the elements of the sample space (b) If A = { 2, 3, 4, 7, 8, 9, 10} and B = {4, 5, 6, 7, 8} list the outcomes which comprise each of the following events and also express the events in...
*March 25, 2007 by mark*

**Physics**

A 15.0 m long truck traveling at 40.0 mph has a braking capability of 5.00 m/s2 from this speed. It is approaching a 10.0-m wide intersection with a traffic light that is turning yellow. (a) What is the minimum distance the truck can be from the intersection if the truck is to...
*January 23, 2013 by Help Me*

**Math**

please help!!!!Apply newtons method to approximate the x-values of the indicated points of intersection of the 2 graphs. continue the process until 2 successive approximations differ by less than 0.001. (Hint: Let h(x)=f(x)-g(x)) f(x)=x^6 g(x)=cos(x) 1)x= ??? (smaller value) 2...
*April 5, 2013 by Harry*

**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 ...
*September 27, 2012 by Avi*

**Math**

Find the number of elements in A1∪A2∪A3, supposing that there are 103 elements in A1, 992 elements in A2, 10011 elements in A3, in each of the following situations: (a) The sets are pairwise disjoint, that is, no pair has common elements, that is, the intersection ...
*March 30, 2014 by Connor*

**physics**

I'm a hurry to go to work today because I forgot to set my alarm clock and woke up late. I'm driving my car very fast, with a velocity of v=40 m/s and coming up to an intersection with a stoplight. When the distance between my car and the intersection is L=100 m, the light ...
*March 12, 2013 by Anonymous*

**Physics - Momentum of cars at intersection**

Two cars of identical mass are approaching the same intersection, one from the south and the one from the west. They reach the intersection at the same time and collide. The cars lock together and move away at an angle of 22deg counterclockwise from the road; heading east. ...
*September 1, 2010 by Shaila*

**Math**

Cameron is located 2 miles due East of an intersection between two country roads. He decides to walk in a straight line (cross-country) toward a position 3 miles due North of the intersection; it takes Cameron one hour to reach that location. (a) Find parametric equations for ...
*January 18, 2010 by SC*

**Math - intersection of planes**

You are given the following two planes: x+4y-3z-12=0 x+6y-2z-22=0 a) Determine if the planes are parallel b) Fine the line of intersection of the two
*September 6, 2010 by Shaila*

**math**

1. Refer to the following line m: b. Name two rays on m that have endpoint B. d. Find a simpler name for the intersection of rays BA and AC the line m has points a b and c going on across like that
*April 28, 2010 by crystal*

**College Finite Math**

Suppose for this problem that Pr[E]=13/24 and Pr[F]=5/8 and Pr[(E U F)'] = 0. Finding Pr[E/F] and Pr[F/E]. For this problem I added 13/24 + 5/8 and got 1.17, therefore, I assumed that .17 is the intersection between Pr(E) and Pr(F). I know that to solve these problems I have ...
*March 16, 2009 by Rory*

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