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30 articles trouvés pour ce sujet.

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	The center and radius of a circle		2020-03-25
		Riley pose la question : so it says find the center and the radius of the below circle x^2+(y-6)^2=121 i need help learning how to solve this Penny Nom lui répond.
	Liza works for a call center		2019-10-31
		Timothy pose la question : Liza knows that in the long term, she has a 65% chance of making a sale when calling on customers. One morning, he makes Six calls. a. What is her probability of making three calls? b. What is her probability of making sales fewer than three? Penny Nom lui répond.
	The center of a circle		2019-10-24
		Patrick pose la question : I'm trying to find a quick calculation to find the center of the circle that will touch the 3 points of an isosceles triangle. Known dimensions are length of the triangle base and the height from the top point to the middle of the base. Thanks in advance, Kind regards, Patrick Penny Nom lui répond.
	Joining a fitness center		2016-12-18
		Salem pose la question : A fitness center offers a special price for group-class students. The cost of registration is 30 dollars and then you have to pay 25 dollars per month. What is the rule of the equation in the light of c=---m+----? Penny Nom lui répond.
	The circumcentre of a triangle		2016-07-28
		Raj pose la question : If the vertices of triangle ABC are A(-4,-1) B(1,2) C(4,-3) then find coordinates of circumcentre of triangle Penny Nom lui répond.
	Locating the center of a circle that forms an arc		2015-04-23
		Ken pose la question : Find the Cartesian coordinates of the center of an arc with the given location of the beginning and end points and radius length. Not the midpoint of the circumference but the actual point that the arc is drawn around. I know their are two answers depending on the direction of the arc. Unless we assume that all arcs are drawn counter clock wise. Thanks Ken Harley Weston lui répond.
	The center and radius of a circle		2015-02-06
		ariana pose la question : I need to find the center and the radius of this circle. I don't know how to put 9/2 than square it into a fraction. x^2 + 2x + y^2 +9y=5 Penny Nom lui répond.
	A cyclic quadrilateral		2014-03-28
		Carly pose la question : Suppose ABCD is a cyclic quadrilateral, i.e A, B, C, and D are the points on a circle, given in order going around the circle. Show that if we join each of A, B, C, and D to the orthocentre of the triangle formed by the other three, then the resulting line segments all intersect in a common midpoint. Thank you. Chris Fisher lui répond.
	The circumcenter		2012-12-09
		BandNerd pose la question : I need to find the circumcenter of the triangle with the coordinates A(0,0) B(12,6) and C(18,0). I do not understand how to solve it algebraically. Please help! Chris Fisher lui répond.
	Finding the circumcentre		2012-05-24
		Glen pose la question : Hi, I'm having trouble finding the circumcentre of these 3 co-ordinates- A(1,1) B(10.5,1) and C(6,6). I understand what circumcentre is but I cannot work out where it is. Thanks very Much, Glen Chris Fisher lui répond.
	The circumcentre and orthocentre of a triangle		2012-04-25
		Nazrul pose la question : The circumcentre and orthocentre of a triangle is given. A point on a side of the triangle given. A vertex of the triangle on the circumcircle is also given. How can I draw the triangle? Please Help me. Thank you for answering my previous questions. Chris Fisher lui répond.
	A circular cylinder circumscribed about a right prism		2012-01-25
		Noriz pose la question : A cylinder is circumscribed about a right prism of altitude 12.6cm. Find the volume of the cylinder if the base of the prism is an isosceles triangle of sides 3cm by 3cm by 2cm. Hope you can help me with this. Penny Nom lui répond.
	The center of a rectangular room		2010-02-16
		Diana pose la question : Consider a rectangular room, 15 feet wide, 30 feet long and 12 feet high. What is the exact distance from any of the 8 corners of the room and its geometric center? Can you write a generic formula for such a distance? And if we keep the same proportions on all dimensions, can you write an expression for the same distance as a function of the floor perimeter? Penny Nom lui répond.
	The center of an ellipse		2009-04-21
		Nae pose la question : what is the ellipse center of 5x^2+3y^2=15 Stephen La Rocque lui répond.
	The centroid and circumcircle of a triangle		2008-12-09
		prateet pose la question : in an equilateral triangle prove that the centroid and centre of the circumcircle coincide here i am not clear about the concept of centroid and circumcircle i cant understand how AGis 2/3 AD. please help in details about the topic mentioned. Harley Weston lui répond.
	The centre and radius of a circle		2008-03-12
		Ryan pose la question : hello and thank you for such a wonderful service. This problem I think needs to be checked could you take a gander at it and tell me if i get it correct thanks find the center and the radius of this circle x^2+y^2=8x-2y+15=0 I cam up with center -2, 1/2 and a radius of 11 3/4 Harley Weston lui répond.
	A triangle and its incenter		2008-02-11
		Elle pose la question : In the figure, P is the incenter of triangle ABC, the radius of the inscribed circle is 6cm, and the perimeter of triange ABC is 38cm. What is the area of triangle ABC? Penny Nom lui répond.
	Circumcentre of a triangle		2007-12-18
		Kathryn pose la question : Find the coordinates of the circumcentre of the triangle whose vertices are: (5, -3), (3, -1), (-1, 5) Stephen La Rocque lui répond.
	Constructing the centre of a circle		2007-11-06
		Carolyn pose la question : I have a line segment AB. I need to divide a segment into 3 parts that are congruent. Please help how to divide it. The answer that I was given previous was not the way the teacher wanted it. I also need information on how to find the center of a circle given an arc. Penny Nom lui répond.
	Finding the center of a circle that goes through three given points		2007-09-16
		Gary pose la question : I am given three points represented by their Latitude and Longitude. How do I determine the Latitude and Longitude of the center of a circle through the three given points? The lat/lon of the three points are: A. N 43 degrees 30.251 min. W 96 degrees 45.695 min. B. N 43 degrees 30.006 min. W 96 degrees 45.082 min. C. N 43 degrees 30.719 min. W 96 degrees 45.410 min. Thanks. Stephen La Rocque lui répond.
	Finding the center of an ellipse		2007-06-20
		Sima pose la question : find the center of the ellipse with the equation 3x^2 +4y^2+18x-32y-5=0 Penny Nom lui répond.
	The orthcentre and the circumcentre		2007-04-05
		Ruby pose la question : I have tried to do this question so many times, could you please, please, please show me how to do it. I just can't get the answer: What is the (i)Circumcentre and (ii)Orthocentre of the triangle with vertices a(-2,2) b(2,-6) c(5,3)? It would be so great if you could show me how to do this. Thanks in advance, Ruby. Penny Nom lui répond.
	The Geosphere at the the Epcot Center park		2007-03-16
		stephanie pose la question : The epcot center has a diameter of 265 ft the park needs to paint the park one can will cover 400 sq ft how many cans do they need ? Stephen La Rocque lui répond.
	The centre and radius of a circle		2007-01-27
		A student pose la question : x^2+y^2=121 is the equation of the Circle C (1) Write down the center and the radius of C. Stephen La Rocque lui répond.
	The centre and radius of a circle		2006-04-02
		Kaye pose la question : I need to calculate Dimension E and F. I am given A, B, C, (or over all A+B+C), D, G. The radius is one continuous unknown radius. Example: A = 23.50 B = 35.50 C = 0.50 D = 11.50 G = 23.50 I have calculated this for angles but my mind is drawing a blank for the radius calculation. I can draw it but I need to put into Excel spreadsheet. Harley Weston lui répond.
	A circle problem		2006-01-23
		Matyan pose la question : Find the standard equation of the circle that passes through the points (0,4) and (3,7) with center on the line 2x-y+4=0. I've tried substituting the two points to the general equation of a circle, but I can't solve it without a third equation. The problem here is I don't really know how to use the given line of 2x-y+4=0. Please help. Thank you. Penny Nom lui répond.
	The circle through three points		2004-07-06
		Jim pose la question : I am a student trying to solve math problem. I'd like to calculate the radius of the circle that exactly fits any three points. If the points are (X1,Y1), (X2,Y2), and (X3,Y3), what is the radius of the circle that contains those three points? Penny Nom lui répond.
	The center of a circle		2004-05-26
		Wan pose la question : I am trying to find the radius of an arc. The only things i know about the arc is all referenced from the line of tangency to the arc. on both sides i have a differnt horizontal perpendicular distance to the point of tangency. left side |-------*---------------| right side (*=point of tangency). Then i have 2 difference vertical perpendicular distance of the end points to the line of tangency. I know it sounds very bad in text but this is all i know about the arc. Can you help me find the radius? Penny Nom lui répond.
	The orthocentre		2002-10-17
		Elsie pose la question : Find the orthocentre of the triangle with vertices at A(-3,4), B(10, -3) and C(3,-2). Find the distance of point X(3,8) from the line that passes through Y(-2, -2) and Z (3, -2). Chris Fisher lui répond.
	A geometry proof		2001-04-18
		Melissa pose la question : Extend the bisectors of angle A, angle B, and angle C of triangle ABC to meet the circumcircle at points X, Y, and Z respectively. Show that I is the orthocenter of triangle XYZ. Chris Fisher lui répond.

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