| 3401 |
AMC 12 2015 A Q25 |
A collection of circles in the upper half-plane, a... |
1484.00 |
| 3402 |
AMC 12 2015 B Q15 |
At Rachelle's school an A counts 4 points, a B 3 p... |
1484.00 |
| 3403 |
AMC 12 2010 A Q4 |
If \( x < 0\), then which of the following must be... |
1484.00 |
| 3404 |
AMC 12 2010 A Q11 |
The solution of the equation \( 7^{x+7}=8^x\) can ... |
1484.00 |
| 3405 |
AMC 12 2010 B Q2 |
A big \( L\) is formed as shown. What is its area?... |
1484.00 |
| 3406 |
AMC 12 2010 B Q9 |
Let \( n\) be the smallest positive integer such t... |
1484.00 |
| 3407 |
AMC 12 2010 B Q13 |
In \( \triangle ABC, \ \cos(2A - B) + \sin(A+B) = ... |
1484.00 |
| 3408 |
AMC 12 2010 B Q20 |
A geometric sequence \( (a_n)\) has \( a_1=\sin{x}... |
1484.00 |
| 3409 |
AMC 12 2017 A Q2 |
The sum of two nonzero real numbers is \(4\) times... |
1484.00 |
| 3410 |
AMC 12 2017 A Q5 |
At a gathering of \(30\) people, there are \(20\) ... |
1484.00 |
| 3411 |
AMC 12 2017 A Q21 |
A set \(S\) is constructed as follows. To begin, \... |
1484.00 |
| 3412 |
AMC 12 2017 B Q7 |
The functions \(\sin(x)\) and \(\cos(x)\) are peri... |
1484.00 |
| 3413 |
AMC 12 2017 B Q11 |
Call a positive integer monotonous if it is a one-... |
1484.00 |
| 3414 |
AMC 12 2017 B Q24 |
Quadrilateral \(ABCD\) has right angles at \(B\) a... |
1484.00 |
| 3415 |
AMC 12 2009 A Q15 |
For what value of \( n\) is \( i+2i^2+3i^3+\cdots+... |
1484.00 |
| 3416 |
AMC 12 2009 A Q17 |
Let \( a+ar_1+ar_1^2+ar_1^3+\cdots\) and \( a+ar_2... |
1484.00 |
| 3417 |
AMC 12 2007 A Q21 |
The sum of the zeros, the product of the zeros, an... |
1484.00 |
| 3418 |
AMC 12 2011 A Q5 |
Let \(N\) be the second smallest positive integer ... |
1484.00 |
| 3419 |
AMC 12 2011 A Q21 |
The arithmetic mean of two distinct positive integ... |
1484.00 |
| 3420 |
AMC 12 2011 B Q12 |
A power boat and a raft both left dock \(A\) on a ... |
1484.00 |