# How would i Solve this ?? Secants DB and DE intersect the circle at F and C, respectively Screen shot below remove "()" What is length of DF I forgot the formula

32,536 results
1. ## Math

In the diagram, AE¯¯¯¯¯¯¯¯ is tangent to the circle at point A, and secant DE¯¯¯¯¯¯¯¯ intersects the circle at points C and D. The lines intersect outside the circle at point E. A circle with no center shown. Points A, C, and D lie on the

2. ## Geometry

The question is to find the measure of arc PQ in Circle A. The point A is the center of the circle, and the chords PR and SQ intersect at the center. Arc PQ is (3y-10), while arc SR is (2y+20). I know there's a theorem that states that when two chords

3. ## Maths

Two chords AB and CD of A circle intersect at right angle at a point inside the circle if m(angle BAC is 35 degree find m(angle ABD)

4. ## trig

In a diagram of circle, chords AB and CD intersect at E. If AE = 3, EB = 4, CE = x, and ED = x - 4, what is the value of x?

5. ## geometry

Two circles of equal radius intersect each other such that each circle passes through the center of the other circle. Find the equation for the perimeter of this figure.

6. ## Geometry

A secant and a tangent to a circle intersect in a 42 degree angle. The two arcs of the circle intercepted by the secant and tangent have measures in a 7:3 ratio. Find the measure of the third arc. If someone could help me figure out how to do the

7. ## geometry

h t t p s://ibb.co/Hz898r4 enter link for picture without spaces. please help. I got the secants, chords and tangents. I think I found two angles out of the 19. I would appreciate if someone helped me get the rest of the angles. tangent:

8. ## Math

You can use triangle congruence theorems to prove relationships among tangents and secants. Task 1 Four tangents are drawn from E to two concentric circles. A, B, C, and D are the points of tangency. Name as many pairs of congruent triangles as possible

9. ## math

Let S be a set of 31 equally spaced points on a circle centered at O, and consider a uniformly random pair of distinct points A and B (A,B∈S). The probability that the perpendicular bisectors of OA and OB intersect strictly inside the circle can be

10. ## Alebra 2

At what point does the terminal side of the angle (5\pi )/(6) in standard position intersect the unit circle?

11. ## math

When chords intersect in a circle, the vertical angles formed intercept congruent arcs. always sometimes never

12. ## Geometry

Write the equation of circle O centered at origin that passes through (9,-2) Circle B with center (0,-2) that passes through (-6,0) >For circle B, is the radius 6 in this case? So equation would be x^2+(x+2)^2=36, correct? If this is the case, how would I

13. ## math

two circles intersect at point T.if the small circle has a raduis of 4 and C is the center of the larger circle,then the diameter of the larger circle must be 1]4 2] 8 3] 12 4]16 5] not enough information is given

14. ## Geometry

Given: ∆ABC, m∠A = 35°, Circle k(O, r=3), O∈ AB, AB is a diameter in the circle passing through point O. AC and CB are chords which intersect. Not stated that

15. ## Math

The measure of an angle formed by two secants intersecting inside the circle equals a.½ the sum of the intercepted arcs b.½ the difference of the intercepted arcs c.½ the measure of the intercepted arc I need help please!

16. ## Math

1.Radii of congruent circles are equal. True or False 2.The measure of an angle formed by two secants intersecting outside the circle equals a. ½ the sum of the intercepted arcs b. ½ the difference of the intercepted arcs c. ½ the measure of the

17. ## Maths

Very urgent for how many integer values of k do the circle x^2+y^2 =k^2 and hyperbola xy=k may not intersect each other

18. ## Math, Algebra, Graphing Systems of Linear Equation

I'm confused about graphing or solving the linear equations for slope/intercept. Here is what I solved: 3x+2y=-6 X-4y=-16 2y= -3x-6 -4y=1x-16 Y=-3/2+3 Y=+1/4+4 ------------- My answer for graphing the systems for the lines to intersect...well, they didn't

19. ## Math 7 - NYS Math Exam Review Help!

19. The circumference of the circle below is 25.12 centimeters ***** There is a circle and then there is a line and written radius C = 2(pi)r Which is the best estimate for the length of the radius of the circle? a) 3 cm b) 4 cm c) 8 cm d) 16 cm please

20. ## Geometry

Two secants are drawn to a circle from an external point. The external secant length on the first secant is 12 and the internal segment length is 3x +1. The external secant length on the second secant is 15 and the two internal segment length is 3x-1.

21. ## 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

22. ## Maths

Let S be a set of 31 equally spaced points on a circle centered at O, and consider a uniformly random pair of distinct points A and B (A,B∈S). The probability that the perpendicular bisectors of OA and OB intersect strictly inside the circle can be

23. ## geometry

The measure of an angle formed by two secants intersecting outside the circle equals ½ the sum of the intercepted arcs ½ the difference of the intercepted arcs ½ the measure of the intercepted arc

24. ## Geometery

How do I solve this? On my assignment it says find the area inside the square, but outside the circle, given that the radius of the circle is 2 ft. Use 3.14 for ^ I have a picture of a square with a circle in the square, with a base 6 ft. and height 6 ft.

25. ## geometry

in the accompanying diagram of circle O,chords AB and CD intersect at E. If AE=3,EB=4,CE=x, and ED=x-4,what is the value

26. ## 11th grade specialist math

I'm not sure whether this question is too difficult, or perhaps it is lacking a diagram, but I have been getting no response to this question, something I had not been not expecting. To any maths experts out there, I would absolutely LOVE your help,

27. ## Probability

Terminology: A circle of radius r is a curve that consists of all points at distance r from the center of the circle. A disk of radius r is the set of all points whose distance from its center is less than or equal to r . Thus, a circle is the boundary of

28. ## 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

29. ## Language Arts

Circle the correct form of the pronoun. 7. Both John and Jim said (he, they) were not exercising regularly. Circle they 8. The jury was asked to return to (its, their) seats. Circle their 9. Please remind each student to bring (his or her, their) homework

30. ## 8th grade math

circle A has a raduis that is twice the length og the raduis of circle B. Which is an accurate statement about the relationship of these areas of circle A and B and y? a.the area of circle A is 4 times the area of circle B b. the area of circle A is twice

31. ## math

Show a numerical method for approximating the instantaneous rate of change at x = 3 for the function given by ƒ(x) = - 2x2 + 4x + 1 using slopes of secants.

32. ## Geometry and Algebra

AB is a diameter of a circle with centre O. P is on BA extended, and PT is tangent to the circle. Use the corollary to the Intersecting Secants Property to prove that PT is perpendicular to OT. Here is the diagram (Without the dashes in the "com" and

33. ## geometry

How would i Solve this ?? Secants DB and DE intersect the circle at F and C, respectively Screen shot below remove "()" What is length of DF I forgot the formula

34. ## maths-circles

a circle with centre O, secants AB and EF intersect each other at point C in the exterior of the circle . prove that measure of angle ACE=(1/2)*{measure of arcAE)-measure of arc BF}

35. ## calculus

5. Consider the circle x2 + y2 = 16 and the parabola y2 = 8x. They intersect at P and Q in the first the fourth quadrants, respectively. Tangents to the circle at P and Q intersect the x-axis at R and tangents to the parabola at P and Q intersect the

36. ## Math

The vertex of an angle measuring 32° is in the exterior of a circle and its sides are secants of the circle. If the sum of the measures of the intercepted arcs is 180°, find the measure of each intercepted arc.

37. ## Geometry

Two secants of a circle meet in a point out side to the circle. One Secant has 4 and x. The other Secant is 5 and 4. What will be x?

38. ## math

A shaded circle just fits inside a 2m x 3m rectangle. What is the radius in metres, of the largest circle that will also fit inside the rectangle but will not intersect the shaded circle? ------------------------------------------ I have a diagram with me,

39. ## Math

Γ 1 is a circle with center O 1 and radius R 1 , Γ 2 is a circle with center O 2 and radius R 2 , and R 2

40. ## geometry

in circle O, perpendicular chords AB and CD intersect at E so that AE=2, eb=12 and CE=4. find the radius of a circle O and the shortest distance from e to the circle

41. ## maths

Γ 1 is a circle with center O 1 and radius R 1 , Γ 2 is a circle with center O 2 and radius R 2 , and R 2

42. ## Math (urgent)

the equation x^2+y^=25 describes a circle with center at the origin and radius 5. The line y=x-1 passes through the circle. Using the substitution method, find the points at which the circle and line intersect. a) (4,3) and (-4,-3) b) (3,4) and (-3,-4) c)

43. ## Geometry

2 circles with centers O and O' are drawn to intersect each other at points A and B. Center O of one circle lies on the circumference of the other circle. CD is drawn tangent to the circle with center O' at A. Prove that OA bisects angle BAC.

44. ## homework check

which if the following statements is false? a. The points of a circle are coplanar b. Concentric circles intersect in exactally one point c. In are AB C Denotes that an arc of the circle has endpoints A and C and that passes through B d. If a line and a

45. ## math

To find the area, but the easiest approach is using Brahmagupta’ s formula1: If a quadrilateral of side lengths a, b, c, d can be inscribed in a circle, then its area is given by A = sqrt, where s = (a + b + c + d)/2 In this case, a = 2*radius You know b

46. ## Maths - Linear Relations Simple Problem

Find the values of m for which the line with equation y=mx+2 does not intersect the parabola with equation y=(x-1)^2 + 5. I am not sure how to solve this problem. I know that both equations equal each other when it intersects but what happens if they don't

47. ## math

A shaded circle just fits inside a 2m x 3m rectangle. What is the radius in metres, of the largest circle that will also fit inside the rectangle but will not intersect the shaded circle? Drawing a diagram would help with this question. Thanks.

48. ## finite math

Given n(A')=23, n(B')=16, and n((A [intersect] B) U (AUB)'))= 24, find (A [intersect] B) I apologize but intersect was the best way I found to represent the upside down U symbol.

49. ## Math

a polygon P is inscribed in a circle C with area of pie. Circle C and polygon P MUST intersect in at least how many points?

50. ## math

X1, X2,...,X9 are nine points on the circumference of circle O. Line segments are drawn connecting each pair of points. What is the largest number of different points inside the circle at which at least two of these line segments intersect? (Remember that

51. ## 10th grade Geometry

How do you do this proof? "In circle O, line segment ABC and line segment ADE are secants. Prove that angle ADC is congruent to angle ABE. This is the diagram: img523.imageshack.us/my.php?image=diagram3.jpg

52. ## Maths

Let S be a set of 31 equally spaced points on a circle centered at O, and consider a uniformly random pair of distinct points A and B (A,B∈S). The probability that the perpendicular bisectors of OA and OB intersect strictly inside the circle can be

53. ## math

in circle O, chords AB and CD intersect at E. If AE = 3, EB = 4, CE = x, and ED = x-4, what is the value of x?

54. ## Language Arts

Read each sentence. Circle the contraction or contractions in each sentence below: 1. He's going to show me how to prepare dinner. Answer: Circle He's 2. Can you tell if she's your friend or enemy? Answer: Circle she's 3.We'll have to empty out our garage

55. ## 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

56. ## Precalculus

I know I posted this question already ,but I posted the wrong one.... Sets A,B and C are subsets of U. U= positive integers less than 16 A= prime numbers B= factors of 36 C= multiples of 4 (A intersect B)' INTERSECT C {?} I meant INTERSECT not union! My

57. ## math

Okay, so there is circle S. There are two tangents of this circle that intersect, so it almost looks like a cone? the angle of the intersected tangents is 20º. The arc that the "cone" intersects is 4x. I have to figure out what X is. THe answer is 110 but

58. ## maths

find the range of values for k for which the circle x^2+y^2=25 and the line y=x+7 do not intersect

59. ## maths

the equation of the circle is x^2-8x+y^2+4y+11=0 find any coordinates that intersect the line y=-x-1

60. ## Math

Find the range of values for k for which the circle x^2+y^2=25 and the line y=x+7 do not intersect

61. ## geometry

In the accompanying diagram ab and cd are chord of the circle and intersect at e if ae=10 en=9 and ec =6 find de

62. ## Maths

If the straight line x-y=k and the circle x^2+y^2+2x-4y-1=0 intersect at A and B, then the x-coordinate of the mid-point of AB is _ ? A. 1+k B. 1-k C. (1+k)/2 D. (1-k)/2

63. ## Math, Algebra, Graphing Systems of Linear Equation

I'm confused about graphing or solving the linear equations for slope/intercept. Here is what I solved: 3x+2y=-6 X-4y=-16 2y= -3x-6 -4y=1x-16 Y=-3/2+3 Y=+1/4+4 ------------- My answer for graphing the systems for the lines to intersect...well, they didn't

64. ## trigonometry

I need help solving this problem. Question: At what points will the line y=-x intersect the unit circle x2+y2=1?

65. ## Pre Cal

Let the line X-2Y=15 and the circle with equation X^2+Y^2=50 intersect at the points A and B. Algebraically find the coordinates of A and B using the information given.

66. ## maths

two chords,AB and CD ,of acircle intersect at right angles at a point inside the circle. If m(angleBAC):35,FIND m(angleABD).

67. ## math

Use the intersect command on a graphing utility to solve the following equation for the indicated value of b. X^3-218x=b b=2504 Can you please give me the exact steps of how to do it on calculator? i typed the below equation into the "y=..." page of my

68. ## geometry

An army base is enclosed by a wire fence so that it forms a circular compound. The entrance to the base is located at X(3, 6) and the exit is at Y(9, 14). X and Y are end points of a diameter of the circle. A search tower is positioned at Z(2, 13) on the

69. ## ALGEBRA 1

solve by graphing 3x+2y=8 6x+4y=16 You need to graph the 2 equations, and find where they intersect. That is your solution. Somebody is pulling your leg: These are the same lines, there is no solution. I UNDERSTAND i NEED TO FIND WHERE THEY INTERSECT. THE

70. ## calc

a circle is tangent to the y-axis at y=3 and has one x-intercept at x=1 1. determine the other x-intercept 2. find an equation for the circle so i know two points on the circle are (0,3) and (1,0) and the equation for a circle is (x-a)^2 + (y-b)^2 = r^2

71. ## Calculus

Write the equations of the circle in general form. 1. Points on circle (0,0), (0,8), (6,0) 2. Points on circle (1, -1), (2, -2), (0,-2). I don't know how to solve this given the fact that I don't know what the center or the radius of the circle is.

72. ## calc 2

Consider the 4 leaf rose and a circle having polar equations: r=10cos(2Θ) and r=5 with 0≤Θ≤2π, respectively. Find the area of the region that lies inside the rose and outside the circle. hint: find the smallest positive value of Θ for which the two

73. ## geometry

Why did you wait until the night before the exam to realize you did not understand the material? At this point, if you are confused on all that material, all I can recommend is get a good night's sleep. okay so my geometry final is TOMORROW! and i honestly

74. ## 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

75. ## 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

76. ## 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

77. ## geometry

if ab = 8 sc = 6 ec = 12 what is value of dc? it follows the (ac)(bc) =(ec) (dc) theorem tangents secants... thank you...do you have to factor?

78. ## math, help

can someone show me how to do this one i have plenty of them so can you show me step by step when someone gets a chance. Thank you. Solve the system by graphing x+y=3 x+y=-1 What I would do is to put the equations in slope intercept form: y= -x + 3 y= -x

79. ## Geometry

1) Draw a valid conclusion if possible: Parallel lines do not intersect If lines do not intersect, then they have no points in common. **can this logical argument be identified by name? If yes, name it. 2)Draw a conclusion given AB bisects segment XT at

80. ## Math

I need to justify how a base in a logarithmic function graph is a base. Here are the choices: The graph of f(x)= log_3 x+c must intersect with the line y= c+1 when x= 3. The graph of f(x)= log_3 x+c must intersect with the line y= c when x= 3. The graph of

81. ## math

Chords AC and BD intersect at the center of circle ABCD. If the length of CP = 8, which is the length of PB?

82. ## math

k i need to solve the following system: 7x - 8y = 24 xy^2 = 1 i figured out that x = 1/y^2 and i can reduce it to : 7=24y^2+8y^3 but i don't know how to reduce it anymore after that I think I would solve it graphically, that is, plot on my graphing

83. ## Geometry

You are re-tiling the entry to your home and want to create a fancy circular medallion in the center. You want to create a large circle with a smaller circle centered inside. You want to tile the large circle with blue tile and the smaller circle with

84. ## sir steve reiny damon bob maths help steve!!!

Point P(2,1) and Q(4,-5) lie on a circle. If line 2x-y-13=0 is a tangent to the circle at Q, what is (*) Coordinates of the center of the circle; (*) Equation of the circle. (*) Sketch out your circle. Step

85. ## mathematics

The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2.1.1 equation of new circle which is the rotation of original circle through 180 degree around the origin...2.1.2 find equation of another circle which is the translation (x;y)-(x-8;y-6) of

86. ## Algebra

If you have these three origins: (0,0) (0,952) (863,0) How do you find the last point where the two lines intersect? Would really appreciate the help. Thanks. Parker, I'm not quite sure what the question asks. Three origins? Is this standard analytic

87. ## Math

how an I tell if this is a circle or an ellipse? also, how am I supposed to solve it? -x^2+2y^2+8x+3=0 I answered a similar question for Jordan last night at 11:20 divide your equation by -1 to make it start with a positive x^2 term. At this point you

88. ## math

The lines a and b intersect at point D. What is the value of z? z = Can you please help em solve im really stuck and confused?

89. ## Math: Distance and Midpoint

Three points on the edge of a circle are (-220, 220), (0, 0), and (200, 40), where each unit represents 1 foot. What is the diameter of the circle to the nearest 10 feet? I know the answer is supposed to be 550 ft, but I keep coming up with the wrong

90. ## math

How do I find the area of a circlr? In the problem I'm trying to solve, the only information that is given is that sides BC and AD of the 8 by 12 rectangle located outside of the circle, are tangent to the circle.

91. ## Pre-Calc (Circles)

Describe the conditions necessary, where circle A has a larger radius than circle B, for the two circle to have no points of intersection, while circle B is entirely in the interior of circle A.

92. ## Trig

Solve: 3tan^2x-1=0. I got +/- (the sq. root of 3)/3 which is correct according to my study guide. However, I don't know how to use the unit circle to find this. The copy of the unit circle which I have does not have tangent values listed, only sine and

93. ## Geometry

ted skated through one of the face off circles at a hockey rink. His path through the circle is shown in the figure. Given that the face off circle is 15 feet in diameter what distance within the face off circle did Ted travel?? If you google this there

94. ## Calculus

I did an experiment where I had to measure how fast water flowed out of a container at different times and with different volumes. I also had to record the values into a table and graph them. (I got an exponential function). I am to answer the following

95. ## geometry

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Estimate the area of the circle. Use 22/7 for π. The circle is 28 cm if that helps.

96. ## math

Enter your answer and show all the steps that you use to solve this problem in the space provided. A circle has a diameter of 28 centimeters. Estimate the area of the circle. Use 22 7 for π .

97. ## Math

The graphs of 5x-3y=35, 7x-3y=43, and 4x-ay=61 all intersect at the same point. Find the value of "a". Do I solve the systems and then plug in? I am not sure haha.

98. ## Math

Two points are chosen uniformly at random on the unit circle and joined to make a chord C1. This process is repeated 17 more times to get chords C2,C3,…,C18. What is the expected number of pairs of chords that intersect?

99. ## Math Help

Two points are chosen uniformly at random on the unit circle and joined to make a chord C1. This process is repeated 17 more times to get chords C2,C3,…,C18. What is the expected number of pairs of chords that intersect?

100. ## Geometry

Two points are chosen uniformly at random on the unit circle and joined to make a chord C1. This process is repeated 17 more times to get chords C2,C3,…,C18. What is the expected number of pairs of chords that intersect?