AnonymousConfusedGuy

198 Questions
176 Answers

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Help!

Two circles are externally tangent at point P, as shown. Segment CPD is parallel to common external tangent AB. Prove that the distance between the midpoints of line AB and line CD is AB/2.
lee mas ..

AnonymousConfusedGuy 8 jul 2018

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Be really great if someone could answer this :D

https://web2.0calc.com/questions/let-denote-the-circular-region-bounded-by-x-2-y-2

:D

AnonymousConfusedGuy 6 jul 2018

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Anybody?

https://web2.0calc.com/questions/let-denote-the-circular-region-bounded-by-x-2-y-2

:?

AnonymousConfusedGuy 4 jul 2018

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Let denote the circular region bounded by x^2 + y^2 = 36. The lines x = 4 and y = 3 partition into four regions . Let

Let denote the circular region bounded by x^2 + y^2 = 36. The lines x = 4 and y = 3 partition into four regions . Let denote the area of region . If , then compute .
lee mas ..

AnonymousConfusedGuy 3 jul 2018

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Would be great if this could be answered by tomorrow!

In triangle ABC, angle A = 36 and angle B = angle C = 72. Let line BD be the angle bisector of angle ABC.

(a) Prove that BC = BD = AD.
lee mas ..

AnonymousConfusedGuy 2 jul 2018

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In triangle ABC, angle A = 36 and angle B = angle C = 72. Let line BD be the angle bisector of angle ABC.

In triangle ABC, angle A = 36 and angle B = angle C = 72. Let line BD be the angle bisector of angle ABC.

(a) Prove that BC = BD = AD.
lee mas ..

AnonymousConfusedGuy 1 jul 2018

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Two Questions

1: Find BC in the following triangle, to two decimal places.

2: A soccer ball is constructed lee mas ..

AnonymousConfusedGuy 27 jun 2018

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One more for tonight

Before I catch up on the 32 hours of sleep I have missed...

In right triangle ABC with angle B = 90 degrees, we have 2 sin A = 3 cos A. What is sin A?
lee mas ..

AnonymousConfusedGuy 21 jun 2018

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Circle is the incircle of triangle ABC and is also the circumcircle of triangle XYZ. The point X is on line BC, point Y is on

Circle is the incircle of triangle ABC and is also the circumcircle of triangle XYZ. The point X is on line BC, point Y is on overline AB, and the point Z is on line AC. If angle A=40 degrees, angle B=60 degrees, and angle lee mas ..

AnonymousConfusedGuy 21 jun 2018

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Right-Triangle Geometry

In right triangle DEF, we have angle E = 90 degrees and tan D = 3*sin D. What is sin F?

Super confused about this one, thanks!

AnonymousConfusedGuy 21 jun 2018

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A Couple of Questions

1: If A is an acute angle such that tan A + sec A = 2, then find cos A.

2: In triangle GHI, we have GH = HI = 25 and GI = 30. What is sin (angle GHI)?
lee mas ..

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AnonymousConfusedGuy 21 jun 2018

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In triangle ABC, AB = AC, D is the midpoint of line BC, E is the foot of the perpendicular from D to line AC, and F is the midpoint

In triangle ABC, AB = AC, D is the midpoint of line BC, E is the foot of the perpendicular from D to line AC, and F is the midpoint of line DE. Prove that line AF is perpendicular to line BE.

Thanks! lee mas ..

AnonymousConfusedGuy 18 jun 2018

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Analytic Geometry

A triangular region is enclosed by the lines with equations y = 1/2 x + 3, y = -2x + 6 and y = 1. What is the area of the triangular region? Express your answer as a decimal to the nearest hundredth.

Thank you! lee mas ..

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AnonymousConfusedGuy 15 jun 2018

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2 Problems

1: The line intersects the circle at A and B. Find the length of chord .

and
lee mas ..

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AnonymousConfusedGuy 14 jun 2018

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Several Problems

1: A line with slope 6 bisects the area of a unit square with vertices (0,0), (1,0), (1,1), and (0,1). What is the y-intercept of this line?

2: The line intersects the circle at A and B. Find lee mas ..

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AnonymousConfusedGuy 13 jun 2018

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Tricky Problem

Let A, B, and C be three points on the curve xy = 1 (which is a hyperbola). Prove that the orthocenter of triangle ABC also lies on the curve xy = 1.

Thank you!

heureka ●●●●

AnonymousConfusedGuy 7 jun 2018

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If the area of triangle ABC is 27, what is the value of p?

If the area of triangle ABC is 27, what is the value of p?

Thank you!

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AnonymousConfusedGuy 7 jun 2018

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Find the number of square units in the area of the shaded region.

Find the number of square units in the area of the shaded region.

Thanks! lee mas ..

ElectricPavlov ●●

AnonymousConfusedGuy 6 jun 2018

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Sorry, fixed it!

AnonymousConfusedGuy8 jul 2018

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Thanks so much!! :D

AnonymousConfusedGuy8 jul 2018

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Oh I figured it out! Since there are 12 pentagons (12 x 5 = 60) there must be 20 hexagons (20 x 6 = 120) so together there are 180 edges but since it is a 3D object we divide that in half for a total of 90 sides.

AnonymousConfusedGuy27 jun 2018

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Thank you! Any tips for the second one?

AnonymousConfusedGuy27 jun 2018

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Thanks CPhill!

AnonymousConfusedGuy21 jun 2018

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Thank you Heureka, must have just been a typo haha!

AnonymousConfusedGuy21 jun 2018

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Great thank you so much!

AnonymousConfusedGuy21 jun 2018

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Thank you so much CPhill!

AnonymousConfusedGuy21 jun 2018

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You were right! My bad, thanks!

AnonymousConfusedGuy15 jun 2018

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Ok, so here's my graph:

https://www.desmos.com/calculator/dgobto8opj

The equation I have been told for area calculations is [(h_b)b]/2 which gave me an area of 16.9 which is incorrect. For your method, what does "half" refer to?

Thanks!

AnonymousConfusedGuy15 jun 2018

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Thanks so much Heureka! Still not sure what happened on the other one haha!

AnonymousConfusedGuy15 jun 2018

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Thanks so much for your answers Heureka! I think I'm having an issue with the website though. I see on the side of my screen that there were 5 answers posted to the thread in the little (+5) notification bubble, and I had 5 questions posted here which makes sense, but on the actual post itself I only see your answers to 3, 4, and 1, in that order. I think this might be a problem with the website but does anyone know how I can view the other answers? I have tried reloading the site.

Thanks

AnonymousConfusedGuy14 jun 2018

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Thank you Heureka!

AnonymousConfusedGuy11 jun 2018

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Thank you CPhill!

AnonymousConfusedGuy7 jun 2018

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Thank you!

AnonymousConfusedGuy6 jun 2018

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Thank you both!

AnonymousConfusedGuy6 jun 2018