User contributions
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- 12:16, 13 March 2020 (diff | hist) . . (+18) . . 2012 AIME I Problems
- 12:16, 13 March 2020 (diff | hist) . . (+93) . . 2012 AIME II Problems (current)
- 12:15, 13 March 2020 (diff | hist) . . (+76) . . 2012 AIME I Problems
- 09:00, 25 February 2020 (diff | hist) . . (-57) . . Logic
- 08:58, 25 February 2020 (diff | hist) . . (+11) . . 2020 AIME II
- 08:58, 25 February 2020 (diff | hist) . . (+4) . . 2020 AIME I
- 17:35, 16 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10B Problems/Problem 25
- 17:34, 16 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10B Problems/Problem 24
- 17:32, 16 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10B Problems/Problem 23
- 17:32, 16 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10B Problems/Problem 21
- 17:31, 16 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10B Problems/Problem 18
- 17:30, 16 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10B Problems/Problem 17
- 17:30, 16 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10B Problems/Problem 16
- 17:29, 16 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10B Problems/Problem 14
- 17:24, 16 February 2020 (diff | hist) . . (+104) . . 2020 AMC 10B Problems/Problem 10
- 17:23, 16 February 2020 (diff | hist) . . (+103) . . 2020 AMC 10B Problems/Problem 9
- 17:22, 16 February 2020 (diff | hist) . . (+103) . . 2020 AMC 10B Problems/Problem 4
- 17:21, 16 February 2020 (diff | hist) . . (+103) . . 2020 AMC 10B Problems/Problem 3
- 20:16, 7 February 2020 (diff | hist) . . (+5,535) . . 2020 AMC 12B Problems
- 20:05, 7 February 2020 (diff | hist) . . (+696) . . 2020 AMC 10B Problems (→Problem 13)
- 20:04, 7 February 2020 (diff | hist) . . (+416) . . 2020 AMC 10B Problems (→Problem 10)
- 20:03, 7 February 2020 (diff | hist) . . (+1,499) . . 2020 AMC 12B Problems
- 20:01, 7 February 2020 (diff | hist) . . (+4,807) . . 2020 AMC 12B Problems
- 07:43, 2 February 2020 (diff | hist) . . (+47) . . 2020 AMC 10A Problems/Problem 25
- 07:43, 2 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10A Problems/Problem 25
- 07:42, 2 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10A Problems/Problem 23
- 07:41, 2 February 2020 (diff | hist) . . (+118) . . 2020 AMC 10A Problems/Problem 21
- 07:41, 2 February 2020 (diff | hist) . . (+105) . . 2020 AMC 10A Problems/Problem 20
- 07:40, 2 February 2020 (diff | hist) . . (+152) . . 2020 AMC 10A Problems/Problem 16
- 07:39, 2 February 2020 (diff | hist) . . (+55) . . 2020 AMC 12A Problems/Problem 13
- 07:39, 2 February 2020 (diff | hist) . . (+3) . . 2020 AMC 12A Problems/Problem 9
- 07:38, 2 February 2020 (diff | hist) . . (+1) . . 2020 AMC 12A Problems/Problem 24
- 08:02, 1 February 2020 (diff | hist) . . (+45) . . 2020 AMC 10A Problems/Problem 7
- 08:02, 1 February 2020 (diff | hist) . . (+58) . . 2020 AMC 10A Problems/Problem 6
- 08:01, 1 February 2020 (diff | hist) . . (+43) . . 2020 AMC 10A Problems/Problem 4
- 08:00, 1 February 2020 (diff | hist) . . (+1) . . 2020 AMC 12A Problems/Problem 2
- 07:59, 1 February 2020 (diff | hist) . . (+1,068) . . N 2020 AMC 12A Problems/Problem 2 (Created page with "==Problem== The acronym AMC is shown in the rectangular grid below with grid lines spaced <math>1</math> unit apart. In units, what is the sum of the lengths of the line segm...")
- 07:58, 1 February 2020 (diff | hist) . . (+354) . . N 2020 AMC 12A Problems/Problem 1 (Created page with "==Problem== Carlos took <math>70\%</math> of a whole pie. Maria took one third of the remainder. What portion of the whole pie was left? <math>\textbf{(A)}\ 10\%\qquad\textb...")
- 07:57, 1 February 2020 (diff | hist) . . (+45) . . N 2020 AMC 12A Problems/Problem 23 (Redirected page to 2020 AMC 10A Problems/Problem 25) (current) (Tag: New redirect)
- 07:56, 1 February 2020 (diff | hist) . . (+45) . . N 2020 AMC 12A Problems/Problem 20 (Redirected page to 2020 AMC 10A Problems/Problem 23) (current) (Tag: New redirect)
- 07:56, 1 February 2020 (diff | hist) . . (+45) . . N 2020 AMC 12A Problems/Problem 19 (Redirected page to 2020 AMC 10A Problems/Problem 21) (current) (Tag: New redirect)
- 07:56, 1 February 2020 (diff | hist) . . (+45) . . N 2020 AMC 12A Problems/Problem 18 (Redirected page to 2020 AMC 10A Problems/Problem 20) (current) (Tag: New redirect)
- 07:56, 1 February 2020 (diff | hist) . . (+45) . . N 2020 AMC 12A Problems/Problem 16 (Redirected page to 2020 AMC 10A Problems/Problem 16) (current) (Tag: New redirect)
- 07:55, 1 February 2020 (diff | hist) . . (+45) . . N 2020 AMC 12A Problems/Problem 11 (Redirected page to 2020 AMC 10A Problems/Problem 13) (current) (Tag: New redirect)
- 07:55, 1 February 2020 (diff | hist) . . (+45) . . N 2020 AMC 12A Problems/Problem 8 (Redirected page to 2020 AMC 10A Problems/Problem 11) (current) (Tag: New redirect)
- 07:55, 1 February 2020 (diff | hist) . . (+45) . . N 2020 AMC 12A Problems/Problem 7 (Redirected page to 2020 AMC 10A Problems/Problem 10) (current) (Tag: New redirect)
- 07:54, 1 February 2020 (diff | hist) . . (+44) . . N 2020 AMC 12A Problems/Problem 5 (Redirected page to 2020 AMC 10A Problems/Problem 7) (current) (Tag: New redirect)
- 07:54, 1 February 2020 (diff | hist) . . (+44) . . N 2020 AMC 12A Problems/Problem 4 (Redirected page to 2020 AMC 10A Problems/Problem 6) (current) (Tag: New redirect)
- 07:54, 1 February 2020 (diff | hist) . . (+44) . . N 2020 AMC 12A Problems/Problem 3 (Redirected page to 2020 AMC 10A Problems/Problem 4) (current) (Tag: New redirect)
- 07:51, 1 February 2020 (diff | hist) . . (+11,127) . . 2020 AMC 12A Problems
- 07:44, 1 February 2020 (diff | hist) . . (+2,865) . . 2020 AMC 12A Problems (Just writing the framework)
- 06:07, 21 January 2020 (diff | hist) . . (-377) . . Mock AMC (I'm not proud of this mock to be honest)
- 04:46, 6 December 2019 (diff | hist) . . (+295) . . 1991 AIME Problems (→Problem 11)
- 04:43, 6 December 2019 (diff | hist) . . (+203) . . 1991 AIME Problems/Problem 11
- 07:25, 21 November 2019 (diff | hist) . . (-20) . . 2008 AMC 10A Problems/Problem 15
- 13:40, 14 November 2019 (diff | hist) . . (-1) . . 2019 AMC 10A Problems
- 13:42, 12 September 2019 (diff | hist) . . (+376) . . Mock AMC
- 13:25, 22 May 2019 (diff | hist) . . (+56) . . 2019 AMC 12A Problems/Problem 23
- 11:37, 17 May 2019 (diff | hist) . . (-1) . . 2019 AMC 12A Problems/Problem 14
- 05:43, 28 March 2019 (diff | hist) . . (-1) . . 2019 AMC 10B Problems/Problem 19
- 17:20, 22 March 2019 (diff | hist) . . (+629) . . 2019 AIME II Problems
- 12:36, 19 March 2019 (diff | hist) . . (-46) . . 2019 AIME I Problems/Problem 3
- 06:32, 15 March 2019 (diff | hist) . . (+542) . . 2019 AIME I Problems/Problem 13
- 06:18, 15 March 2019 (diff | hist) . . (+2) . . 2019 AIME I Problems/Problem 14
- 06:18, 15 March 2019 (diff | hist) . . (+724) . . 2019 AIME I Problems/Problem 14
- 05:35, 15 March 2019 (diff | hist) . . (+1,675) . . 2019 AIME I Problems/Problem 13 (Solution is incomplete. I just need to add the part about using similar triangles to find GF and BG)
- 05:12, 15 March 2019 (diff | hist) . . (+831) . . 2019 AIME I Problems
- 05:10, 15 March 2019 (diff | hist) . . (+762) . . 2019 AIME I Problems/Problem 15
- 05:09, 15 March 2019 (diff | hist) . . (-48) . . 2019 AIME I Problems/Problem 14
- 05:09, 15 March 2019 (diff | hist) . . (-47) . . 2019 AIME I Problems/Problem 13
- 05:08, 15 March 2019 (diff | hist) . . (-48) . . 2019 AIME I Problems/Problem 12
- 05:08, 15 March 2019 (diff | hist) . . (+587) . . 2019 AIME I Problems/Problem 11
- 05:05, 15 March 2019 (diff | hist) . . (-9) . . 2019 AIME I Problems/Problem 5
- 05:05, 15 March 2019 (diff | hist) . . (-48) . . 2019 AIME I Problems/Problem 4
- 05:04, 15 March 2019 (diff | hist) . . (-35) . . 2019 AIME I Answer Key
- 05:03, 15 March 2019 (diff | hist) . . (+75) . . 2019 AIME I
- 18:48, 14 March 2019 (diff | hist) . . (+3,609) . . 2019 AIME I Problems
- 06:53, 24 February 2019 (diff | hist) . . (+13) . . 2019 AMC 10B Problems/Problem 24
- 12:43, 22 February 2019 (diff | hist) . . (+829) . . 2019 AMC 10B Problems/Problem 24
- 19:48, 20 February 2019 (diff | hist) . . (+1,403) . . 2019 AMC 10B Problems/Problem 24 (All AMC 10 problem pages should include a solution that doesn't mention logarithms; I'll finish this later)
- 10:53, 20 February 2019 (diff | hist) . . (+73) . . 2019 AIME II
- 10:52, 20 February 2019 (diff | hist) . . (0) . . 2019 AIME I Problems
- 10:51, 20 February 2019 (diff | hist) . . (-1) . . 2019 AIME I Problems/Problem 15
- 05:07, 20 February 2019 (diff | hist) . . (+95) . . 2006 AIME II Problems
- 05:07, 20 February 2019 (diff | hist) . . (+96) . . 2006 AIME I Problems
- 05:06, 20 February 2019 (diff | hist) . . (+95) . . 2005 AIME II Problems
- 05:06, 20 February 2019 (diff | hist) . . (+96) . . 2005 AIME I Problems (current)
- 05:05, 20 February 2019 (diff | hist) . . (-9) . . 2004 AIME II Problems/Problem 7
- 05:05, 20 February 2019 (diff | hist) . . (+669) . . 2004 AIME II Problems (current)
- 05:03, 20 February 2019 (diff | hist) . . (+96) . . 2004 AIME I Problems
- 21:14, 19 February 2019 (diff | hist) . . (+95) . . 2003 AIME II Problems
- 21:14, 19 February 2019 (diff | hist) . . (+96) . . 2003 AIME I Problems
- 21:13, 19 February 2019 (diff | hist) . . (+95) . . 2002 AIME II Problems
- 21:12, 19 February 2019 (diff | hist) . . (+96) . . 2002 AIME I Problems
- 21:12, 19 February 2019 (diff | hist) . . (+95) . . 2001 AIME II Problems (current)
- 21:12, 19 February 2019 (diff | hist) . . (+96) . . 2001 AIME I Problems
- 21:11, 19 February 2019 (diff | hist) . . (+95) . . 2000 AIME II Problems (current)
- 21:10, 19 February 2019 (diff | hist) . . (+93) . . 2000 AIME I Problems
- 21:09, 19 February 2019 (diff | hist) . . (+88) . . 1999 AIME Problems
- 21:09, 19 February 2019 (diff | hist) . . (+18) . . 1998 AIME Problems
- 21:08, 19 February 2019 (diff | hist) . . (-28) . . 1998 AIME Problems
- 21:08, 19 February 2019 (diff | hist) . . (+1) . . 1998 AIME Problems/Problem 12
- 21:05, 19 February 2019 (diff | hist) . . (-296) . . 1991 AIME Problems/Problem 11
- 21:04, 19 February 2019 (diff | hist) . . (+152) . . 1991 AIME Problems
- 20:59, 19 February 2019 (diff | hist) . . (-10) . . 2007 AIME I Problems/Problem 12
- 19:59, 15 February 2019 (diff | hist) . . (+1,181) . . 2012 AMC 12B Problems/Problem 19
- 19:58, 15 February 2019 (diff | hist) . . (+1,759) . . 2012 AMC 12B Problems (The original problems came with a picture)
- 10:27, 15 February 2019 (diff | hist) . . (+694) . . 2019 AMC 12B Problems/Problem 21
- 21:50, 14 February 2019 (diff | hist) . . (+1,420) . . 2019 AMC 12B Problems/Problem 21 (Solution Work in Progress)
- 19:22, 14 February 2019 (diff | hist) . . (-4) . . 2019 AMC 12B Problems/Problem 25
- 19:16, 14 February 2019 (diff | hist) . . (+1,117) . . 2019 AMC 12B Problems/Problem 25
- 19:04, 14 February 2019 (diff | hist) . . (+576) . . 2019 AMC 12B Problems/Problem 25
- 18:48, 14 February 2019 (diff | hist) . . (+15) . . 2019 AMC 12B Problems/Problem 24
- 18:48, 14 February 2019 (diff | hist) . . (+13) . . 2019 AMC 12B Problems/Problem 21
- 18:48, 14 February 2019 (diff | hist) . . (+15) . . 2019 AMC 12B Problems/Problem 18
- 18:47, 14 February 2019 (diff | hist) . . (+669) . . 2019 AMC 12B Problems/Problem 18
- 18:40, 14 February 2019 (diff | hist) . . (+15) . . 2019 AMC 12B Problems/Problem 17
- 18:39, 14 February 2019 (diff | hist) . . (+80) . . 2019 AMC 12B Problems/Problem 16
- 18:38, 14 February 2019 (diff | hist) . . (+1,909) . . 2019 AMC 12B Problems/Problem 12
- 18:37, 14 February 2019 (diff | hist) . . (+43) . . 2019 AMC 12B Problems
- 18:35, 14 February 2019 (diff | hist) . . (+158) . . 2019 AMC 12B Problems
- 18:34, 14 February 2019 (diff | hist) . . (+3,387) . . 2019 AMC 12B Problems
- 18:21, 14 February 2019 (diff | hist) . . (+8) . . 2019 AMC 12B Problems/Problem 8
- 18:20, 14 February 2019 (diff | hist) . . (-34) . . 2019 AMC 10B Problems (→Problem 22)
- 18:19, 14 February 2019 (diff | hist) . . (+1,794) . . 2019 AMC 10B Problems
- 18:14, 14 February 2019 (diff | hist) . . (+14) . . 2019 AMC 10B Problems/Problem 5
- 18:10, 14 February 2019 (diff | hist) . . (-514) . . 2019 AMC 12B Problems/Problem 22 (Redirected page to 2019 AMC 10B Problems/Problem 24) (current) (Tag: New redirect)
- 18:09, 14 February 2019 (diff | hist) . . (+152) . . 2019 AMC 10B Problems/Problem 24
- 18:08, 14 February 2019 (diff | hist) . . (-1) . . 2019 AMC 10B Problems/Problem 22
- 18:07, 14 February 2019 (diff | hist) . . (-3,274) . . 2019 AMC 12B Problems/Problem 19 (Redirected page to 2019 AMC 10B Problems/Problem 22) (current) (Tag: New redirect)
- 18:07, 14 February 2019 (diff | hist) . . (+3,548) . . 2019 AMC 10B Problems/Problem 22
- 18:05, 14 February 2019 (diff | hist) . . (+93) . . 2019 AMC 10B Problems/Problem 21
- 18:03, 14 February 2019 (diff | hist) . . (-1,373) . . 2019 AMC 12B Problems/Problem 14 (Redirected page to 2019 AMC 10B Problems/Problem 19) (current) (Tag: New redirect)
- 18:03, 14 February 2019 (diff | hist) . . (+1,218) . . 2019 AMC 10B Problems/Problem 19
- 15:51, 14 February 2019 (diff | hist) . . (+966) . . 2019 AMC 10B Problems/Problem 18
- 15:50, 14 February 2019 (diff | hist) . . (0) . . 2019 AMC 10B Problems/Problem 16
- 15:49, 14 February 2019 (diff | hist) . . (-8) . . 2019 AMC 10B Problems/Problem 15
- 15:48, 14 February 2019 (diff | hist) . . (+72) . . 2019 AMC 10B Problems/Problem 14
- 15:46, 14 February 2019 (diff | hist) . . (-799) . . 2019 AMC 12B Problems/Problem 7 (Redirected page to 2019 AMC 10B Problems/Problem 13) (current) (Tag: New redirect)
- 15:46, 14 February 2019 (diff | hist) . . (+819) . . 2019 AMC 10B Problems/Problem 13
- 15:45, 14 February 2019 (diff | hist) . . (+90) . . 2019 AMC 10B Problems/Problem 12
- 15:44, 14 February 2019 (diff | hist) . . (+500) . . 2019 AMC 10B Problems/Problem 11
- 15:42, 14 February 2019 (diff | hist) . . (+500) . . 2019 AMC 10B Problems/Problem 10
- 15:42, 14 February 2019 (diff | hist) . . (-383) . . 2019 AMC 12B Problems/Problem 6 (Redirected page to 2019 AMC 10B Problems/Problem 10) (current) (Tag: New redirect)
- 15:40, 14 February 2019 (diff | hist) . . (+90) . . 2019 AMC 10B Problems/Problem 9
- 15:40, 14 February 2019 (diff | hist) . . (+77) . . 2019 AMC 10B Problems/Problem 8
- 15:39, 14 February 2019 (diff | hist) . . (-961) . . 2019 AMC 12B Problems/Problem 5 (Redirected page to 2019 AMC 10B Problems/Problem 7) (current) (Tag: New redirect)
- 15:39, 14 February 2019 (diff | hist) . . (+1,015) . . 2019 AMC 10B Problems/Problem 7
- 15:33, 14 February 2019 (diff | hist) . . (+4) . . m 2019 AMC 10B Problems/Problem 5 (Sorry, I keep forgetting that when the answer choices are phrases, I have to leave a full line of space in between them)
- 15:32, 14 February 2019 (diff | hist) . . (+923) . . 2019 AMC 10B Problems/Problem 5
- 15:30, 14 February 2019 (diff | hist) . . (+97) . . 2019 AMC 12B Problems/Problem 3
- 15:28, 14 February 2019 (diff | hist) . . (-568) . . 2019 AMC 12B Problems/Problem 4 (Redirected page to 2019 AMC 10B Problems/Problem 6) (current) (Tag: New redirect)
- 15:28, 14 February 2019 (diff | hist) . . (+851) . . 2019 AMC 10B Problems/Problem 6
- 15:25, 14 February 2019 (diff | hist) . . (+4) . . 2019 AMC 12B Problems
- 15:24, 14 February 2019 (diff | hist) . . (+131) . . 2019 AMC 12B Problems (Wrong problem for #19)
- 15:21, 14 February 2019 (diff | hist) . . (+88) . . 2019 AMC 10B Problems/Problem 4 (For consistency)
- 15:21, 14 February 2019 (diff | hist) . . (-2) . . 2019 AMC 10B Problems/Problem 3
- 15:19, 14 February 2019 (diff | hist) . . (+75) . . 2019 AMC 10B Problems/Problem 3
- 14:24, 14 February 2019 (diff | hist) . . (-77) . . 2019 AMC 12B Problems (→Problem 15)
- 14:24, 14 February 2019 (diff | hist) . . (-77) . . 2019 AMC 10B Problems (→Problem 20)
- 14:23, 14 February 2019 (diff | hist) . . (+3,399) . . 2019 AMC 10B Problems
- 14:21, 14 February 2019 (diff | hist) . . (-70) . . 2019 AMC 12B Problems
- 14:19, 14 February 2019 (diff | hist) . . (+2,750) . . 2019 AMC 12B Problems
- 13:31, 14 February 2019 (diff | hist) . . (-41) . . 2019 AMC 12B Problems/Problem 20 (Redirected page to 2019 AMC 10B Problems/Problem 23) (Tag: New redirect)
- 13:31, 14 February 2019 (diff | hist) . . (+708) . . 2019 AMC 10B Problems/Problem 23
- 13:27, 14 February 2019 (diff | hist) . . (-613) . . 2019 AMC 12B Problems/Problem 23 (Redirected page to 2019 AMC 10B Problems/Problem 25) (current) (Tag: New redirect)
- 13:27, 14 February 2019 (diff | hist) . . (+1,088) . . 2019 AMC 10B Problems/Problem 25
- 13:24, 14 February 2019 (diff | hist) . . (-2) . . 2019 AMC 12B Problems/Problem 24
- 13:23, 14 February 2019 (diff | hist) . . (+462) . . 2019 AMC 12B Problems/Problem 25
- 13:23, 14 February 2019 (diff | hist) . . (+1,979) . . 2019 AMC 12B Problems
- 13:20, 14 February 2019 (diff | hist) . . (-213) . . 2019 AMC 12B Problems/Problem 2 (Redirected page to 2019 AMC 10B Problems/Problem 2) (current) (Tag: New redirect)
- 13:20, 14 February 2019 (diff | hist) . . (+564) . . 2019 AMC 10B Problems/Problem 2
- 13:16, 14 February 2019 (diff | hist) . . (+161) . . 2019 AMC 10B Problems/Problem 1
- 13:14, 14 February 2019 (diff | hist) . . (+350) . . 2019 AMC 10B Problems/Problem 1
- 13:13, 14 February 2019 (diff | hist) . . (-404) . . 2019 AMC 12B Problems/Problem 1 (Redirected page to 2019 AMC 10B Problems/Problem 1) (current) (Tag: New redirect)
- 13:12, 14 February 2019 (diff | hist) . . (+608) . . 2019 AMC 10B Problems/Problem 1
- 13:10, 14 February 2019 (diff | hist) . . (-77) . . 2019 AMC 12B (current)
- 13:10, 14 February 2019 (diff | hist) . . (+1,166) . . 2019 AMC 10B Problems
- 13:08, 14 February 2019 (diff | hist) . . (+377) . . 2019 AMC 10B Problems/Problem 13
- 13:06, 14 February 2019 (diff | hist) . . (-212) . . 2019 AMC 10B (current)
- 13:05, 14 February 2019 (diff | hist) . . (+2) . . 2019 AMC 10B Problems
- 13:05, 14 February 2019 (diff | hist) . . (+6,055) . . 2019 AMC 10B Problems
- 12:57, 14 February 2019 (diff | hist) . . (+5,338) . . 2019 AMC 12B Problems
- 08:59, 14 February 2019 (diff | hist) . . (0) . . 2019 AMC 12B
- 20:49, 9 February 2019 (diff | hist) . . (-6) . . 2019 AMC 12A Problems/Problem 23
- 20:47, 9 February 2019 (diff | hist) . . (+2) . . 2019 AMC 12A Problems/Problem 23
- 20:46, 9 February 2019 (diff | hist) . . (+1,014) . . 2019 AMC 12A Problems/Problem 23
- 20:22, 9 February 2019 (diff | hist) . . (+1,007) . . 2019 AMC 12A Problems/Problem 15
- 20:13, 9 February 2019 (diff | hist) . . (+807) . . 2019 AMC 12A Problems/Problem 14
- 20:01, 9 February 2019 (diff | hist) . . (+1,702) . . 2019 AMC 10A Problems/Problem 23
- 19:43, 9 February 2019 (diff | hist) . . (+871) . . 2019 AMC 12A Problems/Problem 17
- 19:36, 9 February 2019 (diff | hist) . . (+1,070) . . 2019 AMC 12A Problems/Problem 13
- 19:04, 9 February 2019 (diff | hist) . . (+596) . . 2019 AMC 12A Problems/Problem 23 (Unfinished solution. Anyone can write the rest of the solution)
- 18:25, 9 February 2019 (diff | hist) . . (+65) . . 2019 AMC 10A Problems/Problem 22
- 18:24, 9 February 2019 (diff | hist) . . (+57) . . 2019 AMC 10A Problems/Problem 22
- 18:19, 9 February 2019 (diff | hist) . . (+75) . . 2019 AMC 10A Problems/Problem 2
- 18:19, 9 February 2019 (diff | hist) . . (+1,989) . . 2019 AMC 10A Problems/Problem 22
- 18:05, 9 February 2019 (diff | hist) . . (+929) . . N 2019 AMC 10A Problems/Problem 23 (Created page with "==Problem== Travis has to babysit the terrible Thompson triplets. Knowing that they love big numbers, Travis devises a counting game for them. First Tadd will say the number...")
- 18:05, 9 February 2019 (diff | hist) . . (+351) . . N 2019 AMC 10A Problems/Problem 19 (Created page with "==Problem== What is the least possible value of <cmath>(x+1)(x+2)(x+3)(x+4)+2019</cmath>where <math>x</math> is a real number? <math>\textbf{(A) } 2017 \qquad\textbf{(B) } 2...")
- 18:04, 9 February 2019 (diff | hist) . . (+508) . . N 2019 AMC 10A Problems/Problem 17 (Created page with "==Problem== A child builds towers using identically shaped cubes of different color. How many different towers with a height <math>8</math> cubes can the child build with <ma...")
- 18:03, 9 February 2019 (diff | hist) . . (+742) . . N 2019 AMC 10A Problems/Problem 13 (Created page with "==Problem== Let <math>\Delta ABC</math> be an isosceles triangle with <math>BC = AC</math> and <math>\angle ACB = 40^{\circ}</math>. Contruct the circle with diameter <math>\...")
- 18:02, 9 February 2019 (diff | hist) . . (+446) . . 2019 AMC 12A Problems/Problem 1
- 17:57, 9 February 2019 (diff | hist) . . (+1,218) . . 2019 AMC 12A Problems/Problem 21
- 17:44, 9 February 2019 (diff | hist) . . (+357) . . N 2019 AMC 12A Problems/Problem 2 (Created page with "==Problem== Suppose <math>a</math> is <math>150\%</math> of <math>b</math>. What percent of <math>a</math> is <math>3b</math>? <math>\textbf{(A) } 50 \qquad \textbf{(B) } 66...")
- 17:43, 9 February 2019 (diff | hist) . . (+44) . . N 2019 AMC 12A Problems/Problem 4 (Redirected page to 2019 AMC 10A Problems/Problem 5) (current) (Tag: New redirect)
- 17:43, 9 February 2019 (diff | hist) . . (+220) . . 2019 AMC 10A Problems/Problem 5
- 17:41, 9 February 2019 (diff | hist) . . (+45) . . N 2019 AMC 12A Problems/Problem 8 (Redirected page to 2019 AMC 10A Problems/Problem 14) (current) (Tag: New redirect)
- 17:41, 9 February 2019 (diff | hist) . . (+556) . . N 2019 AMC 10A Problems/Problem 14 (Created page with "{{duplicate|2019 AMC 10A #14 and 2019 AMC 12A #8}} For a set of four distinct lines in a plane, there are exactly <math>N<...")
- 17:40, 9 February 2019 (diff | hist) . . (+45) . . N 2019 AMC 12A Problems/Problem 7 (Redirected page to 2019 AMC 10A Problems/Problem 12) (current) (Tag: New redirect)
- 17:39, 9 February 2019 (diff | hist) . . (+960) . . N 2019 AMC 10A Problems/Problem 12 (Created page with "{{duplicate|2019 AMC 10A #12 and 2019 AMC 12A #7}} ==Problem== Melanie computes the mean <math>\mu</math>, the median <ma...")
- 17:36, 9 February 2019 (diff | hist) . . (+90) . . 2019 AMC 10A Problems/Problem 11
- 17:33, 9 February 2019 (diff | hist) . . (+508) . . N 2019 AMC 10A Problems/Problem 10 (Created page with "==Problem== A rectangular floor that is <math>10</math> feet wide and <math>17</math> feet long is tiled with <math>170</math> one-foot square tiles. A bug walks from one cor...")
- 17:33, 9 February 2019 (diff | hist) . . (+463) . . N 2019 AMC 10A Problems/Problem 9 (Created page with "==Problem== What is the greatest three-digit positive integer <math>n</math> for which the sum of the first <math>n</math> positive integers is <math>\underline{not}</math> a...")
- 17:31, 9 February 2019 (diff | hist) . . (+1,165) . . 2019 AMC 12A Problems
- 17:28, 9 February 2019 (diff | hist) . . (+44) . . N 2019 AMC 12A Problems/Problem 6 (Redirected page to 2019 AMC 10A Problems/Problem 8) (current) (Tag: New redirect)
- 17:27, 9 February 2019 (diff | hist) . . (+1,326) . . N 2019 AMC 10A Problems/Problem 8 (Created page with "{{duplicate|2019 AMC 10A #8 and 2019 AMC 12A #6}} ==Problem== The figure below shows line <math>\ell</math> with a regula...")
- 17:25, 9 February 2019 (diff | hist) . . (+44) . . N 2019 AMC 12A Problems/Problem 5 (Redirected page to 2019 AMC 10A Problems/Problem 7) (current) (Tag: New redirect)
- 17:25, 9 February 2019 (diff | hist) . . (+580) . . N 2019 AMC 10A Problems/Problem 7 (Created page with "{{duplicate|2019 AMC 10A #7 and 2019 AMC 12A #5}} ==Problem== Two lines with slopes <math>\dfrac{1}{2}</math> and <math>2...")
- 17:24, 9 February 2019 (diff | hist) . . (+579) . . N 2019 AMC 10A Problems/Problem 6 (Created page with "==Problem== For how many of the following types of quadrilaterals does there exist a point in the plane of the quadrilateral that is equidistant from all four vertices of the...")
- 17:23, 9 February 2019 (diff | hist) . . (+44) . . N 2019 AMC 12A Problems/Problem 3 (Redirected page to 2019 AMC 10A Problems/Problem 4) (current) (Tag: New redirect)
- 17:22, 9 February 2019 (diff | hist) . . (+745) . . N 2019 AMC 10A Problems/Problem 4 (Created page with "{{duplicate|2019 AMC 10A #4 and 2019 AMC 12A #3}} ==Problem== A box contains <math>28</math> red balls, <math>20</math> g...")
- 17:20, 9 February 2019 (diff | hist) . . (+443) . . N 2019 AMC 10A Problems/Problem 3 (Created page with "==Problem== Ana and Bonita were born on the same date in different years, <math>n</math> years apart. Last year Ana was <math>5</math> times as old as Bonita. This year Ana's...")
- 17:19, 9 February 2019 (diff | hist) . . (+45) . . N 2019 AMC 12A Problems/Problem 9 (Redirected page to 2019 AMC 10A Problems/Problem 15) (current) (Tag: New redirect)
- 17:19, 9 February 2019 (diff | hist) . . (+766) . . N 2019 AMC 10A Problems/Problem 15 (Created page with "{{duplicate|2019 AMC 10A #15 and 2019 AMC 12A #9}} ==Problem== A sequence of numbers is defined recursively by <math>a_1...")
- 17:17, 9 February 2019 (diff | hist) . . (+45) . . N 2019 AMC 12A Problems/Problem 10 (Redirected page to 2019 AMC 10A Problems/Problem 16) (current) (Tag: New redirect)
- 17:17, 9 February 2019 (diff | hist) . . (+1,299) . . N 2019 AMC 10A Problems/Problem 16 (Created page with "{{duplicate|2019 AMC 10A #16 and 2019 AMC 12A #10}} ==Problem== The figure below shows <math>13</math> circles of radius...")
- 17:15, 9 February 2019 (diff | hist) . . (+45) . . N 2019 AMC 12A Problems/Problem 11 (Redirected page to 2019 AMC 10A Problems/Problem 18) (current) (Tag: New redirect)
- 17:15, 9 February 2019 (diff | hist) . . (+597) . . N 2019 AMC 10A Problems/Problem 18 (Created page with "{{duplicate|2019 AMC 10A #18 and 2019 AMC 12A #11}} ==Problem== For some positive integer <math>k</math>, the repeating b...")
- 17:13, 9 February 2019 (diff | hist) . . (+433) . . N 2019 AMC 12A Problems/Problem 12 (Created page with "==Problem== Positive real numbers <math>x \neq 1</math> and <math>y \neq 1</math> satisfy <math>\log_2{x} = \log_y{16}</math> and <math>xy = 64</math>. What is <math>(\log_2{...")
- 17:12, 9 February 2019 (diff | hist) . . (+412) . . N 2019 AMC 12A Problems/Problem 13 (Created page with "==Problem== How many ways are there to paint each of the integers <math>2, 3, \dots, 9</math> either red, green, or blue so that each number has a different color from each o...")
- 17:07, 9 February 2019 (diff | hist) . . (+429) . . N 2019 AMC 12A Problems/Problem 14 (Created page with "==Problem== For a certain complex number <math>c</math>, the polynomial <cmath> P(x) = (x^2 - 2x + 2)(x^2 - cx + 4)(x^2 - 4x + 8)</cmath>has exactly 4 distinct roots. What is...")
- 17:05, 9 February 2019 (diff | hist) . . (+1,595) . . N 2019 AMC 12A (Created page with "'''2019 AMC 12A''' problems and solutions. The test was held on February 7, 2019. *2019 AMC 12A Problems *2019 AMC 12A Answer Key **2019 AMC 12A Problems/Problem 1...") (current)
- 17:03, 9 February 2019 (diff | hist) . . (+70) . . AMC 12 Problems and Solutions
- 17:02, 9 February 2019 (diff | hist) . . (+572) . . N 2019 AMC 12A Problems/Problem 15 (Created page with "==Problem== Positive real numbers <math>a</math> and <math>b</math> have the property that <cmath>\sqrt{\log{a}} + \sqrt{\log{b}} + \log \sqrt{a} + \log \sqrt{b} = 100</cmath...")
- 17:01, 9 February 2019 (diff | hist) . . (+2,078) . . 2019 AMC 10A Problems
- 17:00, 9 February 2019 (diff | hist) . . (+4,021) . . 2019 AMC 10A Problems
- 16:56, 9 February 2019 (diff | hist) . . (+642) . . 2019 AMC 10A Problems/Problem 24
- 16:55, 9 February 2019 (diff | hist) . . (+45) . . N 2019 AMC 12A Problems/Problem 16 (Redirected page to 2019 AMC 10A Problems/Problem 20) (current) (Tag: New redirect)
- 16:54, 9 February 2019 (diff | hist) . . (+658) . . N 2019 AMC 10A Problems/Problem 20 (Created page with "{{duplicate|2019 AMC 10A #20 and 2019 AMC 12A #16}} ==Problem== The numbers <math>1,2,\dots,9</math> are randomly placed...")
- 16:52, 9 February 2019 (diff | hist) . . (+682) . . N 2019 AMC 12A Problems/Problem 17 (Created page with "==Problem== Let <math>s_k</math> denote the sum of the <math>\textit{k}</math>th powers of the roots of the polynomial <math>x^3-5x^2+8x-13</math>. In particular, <math>s_0=3...")
- 16:52, 9 February 2019 (diff | hist) . . (+45) . . N 2019 AMC 12A Problems/Problem 18 (Redirected page to 2019 AMC 10A Problems/Problem 21) (current) (Tag: New redirect)
- 16:51, 9 February 2019 (diff | hist) . . (+695) . . N 2019 AMC 10A Problems/Problem 21 (Created page with "{{duplicate|2019 AMC 10A #21 and 2019 AMC 12A #18}} ==Problem== A sphere with center <math>O</math> has radius <math>6</m...")
- 16:50, 9 February 2019 (diff | hist) . . (+465) . . N 2019 AMC 12A Problems/Problem 19 (Created page with "==Problem== In <math>\triangle ABC</math> with integer side lengths, <cmath>\cos A=\frac{11}{16}, \qquad \cos B= \frac{7}{8}, \qquad \text{and} \qquad\cos C=-\frac{1}{4}.</cm...")
- 16:49, 9 February 2019 (diff | hist) . . (0) . . 2019 AMC 12A Problems/Problem 20 (Whoops) (Tag: Redirect target changed)
- 16:48, 9 February 2019 (diff | hist) . . (+45) . . N 2019 AMC 12A Problems/Problem 20 (Redirected page to 2018 AMC 10A Problems/Problem 22) (Tag: New redirect)
- 16:48, 9 February 2019 (diff | hist) . . (+960) . . N 2019 AMC 10A Problems/Problem 22 (Created page with "{{duplicate|2019 AMC 10A #22 and 2019 AMC 12A #20}} ==Problem== Real numbers between 0 and 1, inclusive, are chosen in th...")
- 16:46, 9 February 2019 (diff | hist) . . (+445) . . N 2019 AMC 12A Problems/Problem 21 (Created page with "==Problem== Let <cmath>z=\frac{1+i}{\sqrt{2}}.</cmath>What is <cmath>(z^{1^2}+z^{2^2}+z^{3^2}+\dots+z^{{12}^2}) \cdot (\frac{1}{z^{1^2}}+\frac{1}{z^{2^2}}+\frac{1}{z^{3^2}}+\...")
- 16:45, 9 February 2019 (diff | hist) . . (+1,082) . . N 2019 AMC 12A Problems/Problem 22 (Created page with "==Problem== Circles <math>\omega</math> and <math>\gamma</math>, both centered at <math>O</math>, have radii <math>20</math> and <math>17</math>, respectively. Equilateral tr...")
- 16:45, 9 February 2019 (diff | hist) . . (+812) . . N 2019 AMC 12A Problems/Problem 23 (Created page with "==Problem== Define binary operations <math>\diamondsuit</math> and <math>\heartsuit</math> by <cmath>a \, \diamondsuit \, b = a^{\log_{7}(b)} \qquad \text{and} \qquad a \, \...")
- 16:44, 9 February 2019 (diff | hist) . . (+933) . . N 2019 AMC 12A Problems/Problem 25 (Created page with "==Problem== Let <math>\triangle A_0B_0C_0</math> be a triangle whose angle measures are exactly <math>59.999^\circ</math>, <math>60^\circ</math>, and <math>60.001^\circ</math...")
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