| 2001 |
AMC 12 1981 A Q26 |
Alice, Bob, and Carol repeatedly take turns tossin... |
1500.00 |
| 2002 |
AMC 12 1981 A Q27 |
In the adjoining figure triangle \( ABC\) is inscr... |
1500.00 |
| 2003 |
AMC 12 1981 A Q29 |
If \( a > 1\), then the sum of the real solutions ... |
1500.00 |
| 2004 |
AMC 12 1994 A Q3 |
How many of the following are equal to \(x^x+x^x\)... |
1500.00 |
| 2005 |
AMC 12 1994 A Q4 |
In the \(xy\)-plane, the segment with endpoints \(... |
1500.00 |
| 2006 |
AMC 12 1994 A Q5 |
Pat intended to multiply a number by \(6\) but ins... |
1500.00 |
| 2007 |
AMC 12 1994 A Q6 |
In the sequence
\[ ..., a, b, c, d, 0, 1, 1, 2, 3... |
1500.00 |
| 2008 |
AMC 12 1994 A Q7 |
Squares \(ABCD\) and \(EFGH\) are congruent, \(AB=... |
1500.00 |
| 2009 |
AMC 12 1994 A Q8 |
In the polygon shown, each side is perpendicular t... |
1500.00 |
| 2010 |
AMC 12 1994 A Q9 |
If \(\angle A\) is four times \(\angle B\), and th... |
1500.00 |
| 2011 |
AMC 12 1994 A Q11 |
Three cubes of volume \(1, 8\) and \(27\) are glue... |
1500.00 |
| 2012 |
AMC 12 1994 A Q12 |
If \(i^2=-1\), then \((i-i^{-1})^{-1}=\)
$$ \te... |
1500.00 |
| 2013 |
AMC 12 1994 A Q14 |
Find the sum of the arithmetic series
\[ 20+20\fr... |
1500.00 |
| 2014 |
AMC 12 1994 A Q15 |
For how many \(n\) in \(\{1, 2, 3, ..., 100 \}\) i... |
1500.00 |
| 2015 |
AMC 12 1994 A Q16 |
Some marbles in a bag are red and the rest are blu... |
1500.00 |
| 2016 |
AMC 12 1994 A Q18 |
Triangle \(ABC\) is inscribed in a circle, and \(\... |
1500.00 |
| 2017 |
AMC 12 1994 A Q19 |
Label one disk "\(1\)", two disks "\(2\)", three d... |
1500.00 |
| 2018 |
AMC 12 1994 A Q20 |
Suppose \(x,y,z\) is a geometric sequence with com... |
1500.00 |
| 2019 |
AMC 12 1994 A Q21 |
Find the number of counter examples to the stateme... |
1500.00 |
| 2020 |
AMC 12 1994 A Q26 |
A regular polygon of \(m\) sides is exactly enclos... |
1500.00 |