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1. Permutations And Combinations?

abc abd abe acb acd ace adb adc ade aeb aec aed bac bad bae bca bcd bce bda bdc bde bea bec bed cab cad cae cba cbd cbd cda cdb cde cea ceb ced dab dac dae dba dbc dbe dca dcb dce dea deb dec eab eac ead eba ebc ebd eca ecb ecd eda edb edc :)

1 Answers · Science & Mathematics · 05/04/2007

2. geometry problem?????

...y = 6° So...AED = 120°, DEB = 60°, BEC = 120° and AEC = 60° ED I... 40 years eh?...time for a refresher course ...

7 Answers · Science & Mathematics · 01/01/2010

3. Math Help!!!!!!!?????!!!!!!!!!!?

...school." <-- I think I need to see the triangle with AEC and AED..

2 Answers · Science & Mathematics · 07/01/2010

4. Plz Help Geometry Homework.?

... + CBD = ABC = 120 2x+18+4x-18 = 120 6x = 120 then x = 20 3) AEC = 5x+20 DEB = 3x+60 WHERe IS point E, we need to see...

4 Answers · Science & Mathematics · 31/12/2008

5. Geometry, help prove the existence of rhombi?

...bisector DE ≡ EB Definition of bisector m<AEC ≡ m<DAB Reason: Vertical angles...

2 Answers · Science & Mathematics · 20/01/2009

6. Circle Geometry - Two Column proofs?

... so angle AEP = angle BEP, which is the same as angle AEC = angle BEC. with APE and BPE congruent, you know know AE...

1 Answers · Science & Mathematics · 01/08/2007

7. Math problem, not sure how to solve this, anyone?

...angle arclength ABC = [2pi(2*72)/360]r = (288pi/360)r = 4(pi)r / 5 arclength AEC = [2pi(3*72)/360]r = (432pi/360)r = 6(pi)r / 5 The ratio is: [4(pi...

1 Answers · Science & Mathematics · 04/10/2011

8. In triangle ABC, D is the midpoint of BC and AE is perpendicular to BC. If AC is greater than AB, prove that A?

... AE is perpendicular to BC. Hence ABE and AEC are right triangles. AED is also a right triangle. ...

1 Answers · Science & Mathematics · 04/08/2011