The diagram shows tangent circles and lines. if AB=15 CM find AC, AD and AE . Help me reiny and other tutors please
102,975 results
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.

math
Two circles of radius 4 are tangent to the graph of y^2=4x at the point (1,2). Find the equation of these two circles.

Mathematics
Use implicit differentiation to find the points where the parabola defined by x2−2xy+y2−4y+4=0 has horizontal and vertical tangent lines. The parabola has horizontal tangent lines at the point(s) (xy)/xy+2 . The parabola has vertical tangent lines at

Geometry  Circles and tangents
Two circles of radius 1 are externally tangent at Q . Let PQ and QR be diameters of the two circles. From P a tangent is drawn to the circle with diameter QR , and from R a parallel tangent is drawn to the circle with diameter PQ . Find the distance

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

Bisectors in a Triangle
Let ABC have side lengths AB=13, AC=14, and BC=15. There are two circles located inside

trig
Two circles of radii 5 and 3 cm, respectively, intersect at two points. At either point of intersection, the tangent lines to the circles form a 60◦ angle, as in Figure 2.2.4 above. Find the distance between the centers of the circles

Trig
Three circles with radii of 4, 5, and 6 cm, respectively, are tangent to each other externally. Find the angles of the triangle whose vertexes are the centers of the circles.

Math
Eighteen students in a class play baseball. Seventeen students in the class play basketball. Thirty students in the class plau either or both sports. Select the Venn diagram that shows the number of students who play basketball and baseball. A.The first

Calculus
a)The curve with equation: 2y^3 + y^2  y^5 = x^4  2x^3 + x^2 has been linked to a bouncing wagon. Use a computer algebra system to graph this curve and discover why. b)At how many points does this curve have horizontal tangent lines? Find the

geometry
True or false Tangent circles always have exactly one common tangent.

geometry
Assume that lines that appear to be tangent are tangent. O is the center of the circle. Find the value of x. Figures are not drawn to scale. m

calculus
f(x)=kx^2+3 a) if the tangent lines to the graph of f at (t,f(t)) and (t, f(t)) are perpendicular, find t in terms of k b) Find the coordinate of the point of intersection of the tangent lines mentioned in part (a) in terms of k

Math
Three identical circles are tangent to each other externally. if the area of the curvilinear formed by the point of tangency of the three circles is 142 cm2, compute the radius of each circle.

math
Two circles of radius 4 are tangent to the graph y^2=4x at the point (1,2). Find the equations of the two circles.

honors math 7th grade
its a venn diagram three circles. Here is the question. A study was made of 200 students to determine what tv shows they watch. 22 students hated all star trek shows. 73 students watch only the next generation(TNG) 136 students watch TNG. 14 students watch

Math
Two concentric circles have radii of 24cm and 26cm. What is the length of the chord that is tangent to the inner circle? I don't understand the tangent, like where do I draw the line?

Calculus
Draw a diagram to show that there are two tangent lines to the parabola y=x^2 that pass through the point (0,4). Find the coordinates of the points where these tangent lines intersect the parabola. So far I have taken the derivative and got y'=2x.. Using

geometry
Three circles are externally tangent to one another. The radius of each of the circles is 2 cm. A belt fits tightly around the three circles. Find the length of the belt. Express your answer in terms of pi with an explanation.

Calculus (Urgent Help)
The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the xcoordinate of all points at which these tangent lines occur.

maths
Three circles, each with a radius of 10, are mutually tangent to each other. The area enclosed by the three circles can be written as ab√−cπ, where a, b and c are positive integers, and b is not divisible by a square of a prime. What is the value of

math
Find the measure of the line segment GE. Assume that lines which appear tangent are tangent.

Math
Circle S and Circle U are congruent circles. The figure shows two circles with their center labeled as Upper S and Upper U. The two circles overlap each other such that they intersect at points Upper R and Upper T. D Name three radii of Circle S. Name

maths geometry
Find and write down a proof that the product of the gradients of two perpendicular lines is 1 Use trigonometry. Let the slope of a line from A to B be m1. Let the slope of a perpendicular line from A to C be m2. The tangent (or slope) of the line between

Geometry/Trigonometry
Circles with centers (2,1) and (8,9) have radii 1 and 9, respectively. The equation of a common external tangent to the circles can be written in the form y=mx+b with m < 0. What is b? I drew the diagram and the tangents but to no avail. I cannot seem to

Calculus
Consider the function F(x)=k(x^2)+3 a) If the tangent lines to the graph of F at (t,F(t)) and (t,F(t)) are perpendicular, find t in term of k. b) Find the slopes of tangent lines mentioned in part (a). c) Find the coordinates of the point of intersection

maths
find the gradient of the tangent to the parabola y=4xx^2 at (0,0) hence calculate the size of the angle between the line y=x and this tangent. (as i cant show you the diagram all that it shows is the line going through (0,0) and having one point of

PLEASE HELP TANGENTS AND CIRCLES PROBLEM GEOMETRY
PLEASE HELP I REALLY NEED HELP. Each of the three circles in the figure below is externally tangent to the other two, and each side of the triangle is tangent to two of the circles. If each circle has radius three, then find the perimeter of the triangle.

Math
1. O is the center of the given circle. the measure of angle O, is 134. The diagram is not drawn to scale. Assuming that the lines that appear to be tangent are tangent, what is the value of x? A) 67 B) 46 C) 314 D) 268 can someone please help? I saw an

cal
find the equation of a quadratic function whose graph is tangent at x=1 to the line whose slope8, tangent at x=2 to solve the line with slope4 and tangent to the line y=8 find the equation of the tangent lines at x=1 and x=2 graph the quadratic

MATHS
two circles c1 and c2 meet at the points A and B. CD is a common tangent to these circles where C and D lie on the circumference of C1 and C2 respectively. CA is the tangent to c2 at A. When produced DB meets the circumference of C1 at p. Prove that PC is

GEOMETRY CIRCLES PLEASE
HELP ME PLEASE. 1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that

GEOMETRY CIRCLE
1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to

geometry
Three circles, each with a radius of 10, are mutually tangent to each other. The area enclosed by the three circles can be written as ab√−cπ, where a, b and c are positive integers, and b is not divisible by a square of a prime. What is the value of

math URGENT!!!!!!
a 12x12inch square is divided into n^2 congruent squares by equally spaced lines parallel to its sides. circles are inscribed in each of the squares. find the sum of the areas of the circles... please answer and explain how you got this answer!!!

math URGENT!!!!!!!!!!!!
a 12x12inch square is divided into n^2 congruent squares by equally spaced lines parallel to its sides. circles are inscribed in each of the squares. find the sum of the areas of the circles. answer and please explain step by step how u got the answer!!

GEOMETRY CIRCLES PLEASE
The diagram shows tangent circles and lines. if AB=15 CM find AC, AD and AE . Help me reiny and other tutors please

Math
circles P and Q are externally tangent at T. Horizontal lines l and m are, respectively, tangent to circles P and Q at R and S. Show that RT must contain S.

math
Six unit circles are arranged inside a rectangle. the circles are tangent to each other and tangent to the rectangle as they appear in the diagram. What is the area of the rectangle?

geometry (high school)
if there are two tangent circles that have two external tangent lines that intersect at a 60 degree angle, what is the ratio of the radii.

Math
1. x/5 _______ _____ y/20_______ ________________  Y x/25 y/4 _____________________ Tile X Bathroom Using the diagram above(that i tried to replicate out of ascii), if rectangular tiles are used to completely cover the L shaped bathroom floor without

math
1. two circles. x^2+y^216x8y+35=0 and x^2+y^2=5 are given. a. write the equations in the standard form. b.prove that the circles touch each other. c.hence calculate the equation of their common tangent 2. find the equation of a. circle. with centre

calculus
if the tangent of two intersecting circles, at their points of intersection are perpendicular, the circles are said to be orthogonal. Show that the circles x^2+y^26x+4y+2=0 and x^2+y^2+8x+2y22=0 are orthogonal. find the equation of the tangent to the

cal
Equations of the tangent lines to hyperbola xy=1 that pass through point (1,1) I know the graph of y=1/x but not sure about the tangent lines at given point. Are the lines tangent to (1,1) and (1,1)? You're correct, the graph is y=1/x, so find y' to get

math
circle O has a diameter D and circle P has a diameter d. the two circles are externally tangent. find the length of the common external tangent in terms of the circles' diameters

GEOMETRY
Two circles with radii a and b touch each other externally . Let c be the radius of a circle which touches these two circles as well as their common tangent to the two circles . Then relate a,b and c through an equation

Math
1. O is the center of the given circle. the measure of angle O, is 134. The diagram is not drawn to scale. Assuming that the lines that appear to be tangent are tangent, what is the value of x? A) 67 B) 46 C) 314 D) 268 can someone please help? I saw an

Math
1. O is the center of the given circle. The measure of angle O is 134*. The diagram is not drawn to scale. Assuming that lines that appear to be tangent are tangent, what is the value of X? A) 67 B) 46 C) 314 D) 268 I've never solved a problem like this

AP Calculus
Two circles of radius 4 are tangent to the graph of y^2=4x at the point (1,2). Find equations of these two circles. I found the derivative of y^2=4x, but i don't know what to do next!

Math
Circle S and Circle U are congruent circles. The figure shows two circles with their center labeled as Upper S and Upper U. The two circles overlap each other such that they intersect at points Upper R and Upper T. Dotted lines are drawn from the point

Math. I really don't get this question
three circles are manually tangent externally. their centers form a triangle whose sides are of length 8, 9, 13. find the total area of the three circles

AP Calculus
I asked this yesterday and someone answered. but i didn't understand the explanation.. Two circles of radius 4 are tangent to the graph of y^2=4x at the point (1,2). Find equations of these two circles. I got (x1)^2+(y2)^2=16 and (x4.36)^2+(y+1.36)^2=16

Calculus
I found part B, but stuck on part A. Use implicit differentiation to find the points where the parabola defined by x^22xy+y^2+4x8y+24= 0 has horizontal and vertical tangent lines. A) The parabola has horizontal tangent lines at the point(s): B)The

Geometry
Tangent Lines practice problems. Unit 7 3. In the figure below, lines that appear to be tangent are tangent. Point O is the center of the circle. Which is the value of x? I am really confused on this question. If anyone could help that would be great

maths
there are two circles touching each other at one point. The radius of bigger circle is 4cm and smaller is 1cm. A small third circle is drawn which touches both the first two circles at one point each. A common tangent passes through all the three

Math
1. o is the center of the given circle. The measure of angle o is 134*. The diagram is not drawn to scale. Assuming that lines that appear to be tangent are tangent, what is the value of X? A) 67 B) 46 C) 314 D) 268 When I solve this, i get B. But I've

Math
Let AB be the diameter of circle Γ1. In the interior of Γ1, there are circles Γ2 and Γ3 that are tangent to Γ1 at A and B, respectively. Γ2 and Γ3 are also externally tangent at C. This exterior tangent cuts Γ1 at P and Q, with PQ=20. The area that

math
Let AB be the diameter of circle Γ1. In the interior of Γ1, there are circles Γ2 and Γ3 that are tangent to Γ1 at A and B, respectively. Γ2 and Γ3 are also externally tangent at the point C. This tangent line (at C) cuts Γ1 at P and Q, with PQ=20.

geometry
Each of the three circles have a radius of 10. The line OA contains the center of the three circles, and the line OB is tangent to the righthand circle. Find the length of segment CD

Maths
the figure below shows 3 similar circles that just touch one another.A,Band C are the centres of the circles.If the perimeter of the triangle ABC is 42cm, what is the total area of the unshaded part of the 3 circles. (take pie = 22/7)

Calculus (Help)
The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the xcoordinate of all points at which these tangent lines occur. What the derivative of the function?

Calculus (Help)
The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the xcoordinate of all points at which these tangent lines occur. What the derivative of the function?

Geometry
I have a circle with 2 lines that are connected and tangent to the circle. The lines are CA and CB angle ACB is 50 degrees. Arc AB inside of the tangent lines is X degrees find X

Calculus (Urgent Help)
The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the xcoordinate of all points at which these tangent lines occur.

GEOMETRY CIRCLES PLEASE
1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to

Math. Help me please!
The two circles have equations x^ + (y3)^2 = 49 and x^2 + (y17)^2 =49. find the equation of the larger circle. The diagram looks like two circles on top of the other then a large circle outside.

Circles
2 circles have different radius touch at a point and at the point has 1 common tangent and another common tangent touching the circles at different points other than the first

geometry!!!!!!!!!!
Three circles, each with a radius of 10, are mutually tangent to each other. The area enclosed by the three circles can be written as ab√−cπ, where a, b and c are positive integers, and b is not divisible by a square of a prime. What is the value of

maths
Three circles, each with a radius of 10, are mutually tangent to each other. The area enclosed by the three circles can be written as a√b−cπ, where a, b and c are positive integers, and b is not divisible by a square of a prime. What is the value of

math calc. asap asap please
the point on the curve is 4y=x^2 nearest to (7,2) is: this is what i did: i solved for y and I know that the there's a tangent line at (x1,y1). so using yy1=m(xx1), I found the lines of the tangent and perpendicual lines: slope is derivative so it is

Algebra
Four circles with centers A,B,C,and D are mutually tangent. The areas of circles A,B,C, and D are 25pi, 100pi, 16pi, and 225pi respectively. How many units are in the perimeter of quadrilateral ABCD?

MATH
Three circles, each with a radius of 10, are mutually tangent to each other. The area enclosed by the three circles can be written as abã−cƒÎ, where a, b and c are positive integers, and b is not divisible by a square of a prime. What is the value

Precalculus
This figure shows concentric circles of radii 3 and 5, respectively, centered at the origin of an xycoordinate system. A ray from the center at an angle of t degrees to the xaxis cuts the two circles at points A and B. From A, a vertical line is drawn;

GEOMETRY(CIRCLE)
Three circles with different radii have their centers on a line. The two smaller circles are inside the largest circle, and each circle is tangent to the other two. The radius of the largest circle is 10 meters. Together the area of the two smaller circles

Math
The Venn diagram below shows the dinner orders for a local restaurant. This was submitted before, but no one answered. Thanks! How many people did NOT order steak for dinner? Steak, chicken & fish were order. In the Venn circles, the total that did not

math
The Venn diagram below shows the dinner orders for a local restaurant. How many people did NOT order steak for dinner? Steak, chicken & fish were order. In the Venn circles, the total that did not order steak was 56. There is 43 in the right lower corner

Haley
Three circles with radii 35cm, 50cm, and 65cm respectively are tangent to each other externally. Find the angles of the triangle formed by joining the centers of the circles. My teacher said to use the cosine law cause you know 3 sides but no angles. But I

website
What is the website that is used to do the diagrams. Its like circles connected to circles in this diagram.

Calculus1
Let f(x) = e^x and g(x) = sin(lnx). Find equations for two distinct parallel lines l1 and l2 where; l1 is tangent to f at x = 0 and l2 is tangent to g.

Calculus Help Please!!!
 Find the slope m of the tangent to the curve y = 4 + 4x^2 − 2x^3 at the point where x = a.  Find equations of the tangent lines at the points (1,6) and (2,4). (1,6) Y(x)= (2,4) Y(x)=

Math
find f'(x) find the slope of the graph of f a x=2 and x=4 find the equations of the tangent lines at x=2 and x=4 and find the value(s) of x where the tangent line is horizontal. f(x)=2x^2+8x I found that f'(x)=4x+8 and that the slopes were 16 and 24 and

algebra
At an auto show, a car dealer asked the first 10 visitors their ages and the kinds of cars they own. The Venn diagram shows the details. A Venn diagram titled Ages of Car Owners, indicating the ages of owners of each type of car. Each of the three circles

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Find the equation of the line tangent to the graph of y=4 e^x at x=2. I always get confused with tangent lines I worked this out to be 4e^x(x2)+4e^2 but the program i have to submit it to says its wrong.

PreAlgebra B
A Venn diagram with two circles is drawn. Each circle has a diameter of 10 cm. The overlapping area is 20 cm^2. Find the total writing area within the diagram.

precalc
find the equation of the circles described. tangent to 2x + 3y + 13 = 0 and 2x  3y  1 = 0 and contains (0,4)

Math
In this problem we consider drawing some straight lines which form a nice pattern. Consider joining the point (0.1,0) to the point (0,0.9) by a line segment; then joining (0.2,0) to (0,0.8) by a line segment; and so on. In general, consider joining the

Physics
The equipotential lines inside a parallel plate capacitor a) circles clockwise b)circles counterclockwise c)radiates inwards d)radiates outwards e)runs parallel to capacitor plates f)runs perpendicular to capacitor plates I have narrowed it down to either

Geometry
46. Assume that lines that appear to be tangent are tangent. O is the center of the circle. Find the value of x. Figures are not drawn to scale. mO = 128° (1 point) 52 308 64 256

Math
I need to know if I'm answering this correctly. How can you figure out the size of a of a part without having to draw a diagram? consider example of 2/3 × 4/5. A) describe how you could draw a diagram to me this calculation. I would do 5 vertical lines

algebra
Rectangle R is formed by joining the centers of two congruent tangent circles and then drawing radii perpendicular to a common external tangent. If the perimeter of R is 60, what is its area?

calculus
Two lines through the point(1,3) are tangent to the curve y=x2. Find the equations of these two lines and make a sketch to verify your results. Thank you

Calculus
The graph of the equation x2 − xy + y2 = 9 is an ellipse. Find the lines tangent to this curve at the two points where it intersects the xaxis. Show that these lines are parallel.

Ap Calc AB
Find the equation of the line normal to the curve at (0,0). (Normal lines are perpendicular to the tangent lines) 2y + sinx = xcoxy I found the derivative to be (cosy  cosx)/ (2+ xsiny) then the slope tangent is 0...then the slope perpendicular is

Calc.
Find the area of the region bounded by the parabola y=x^2, the tangent line to this parabola at (1,1) and the xaxis. I don't really get what this question is asking. It looks like the area of right triangle to me...try the graph, and shade the area under

Calculus
By finding the slopes of the tangent lines to the curve of y=(1/3)x^3+5x at the points where x=3 and x=6, find the acute angle between these lines at the point where they cross. I don't have any idea where to start. An explanation would be appreciated.

8th grade Math
This fourleaf clover consists of four coplanar circles. Each circle is externally tangent to two others, as shown. The two smaller circles are congruent, and the two larger circles are congruent. A square is constructed such that each of its four vertices

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 the measure

trigonimetry
three circles of radii 27,38, and 42 centimeter respectively are tangent to each other. find the median to the longest side of the triangle formed by joining the centers

trigonometry
three circles of radie 3,4, and 5 units respectively are tangent to each other eternaly. find the angle of the triangle formed by joining centers? help plz

MATH  circles, circles, circles
Happy Friday Math Gang; I can't seem to wrap my head around this one... If two circles have at most 2 places of intersections, 3 circles have at most 6 places of intersection, and so on... How many places of intersection do 100 circles have? Well... I