| 1901 |
AMC 12 1990 A Q18 |
First \(a\) is chosen at random from the set \(\{1... |
1500.00 |
| 1902 |
AMC 12 1990 A Q19 |
For how many integers \(N\) between \(1\) and \(19... |
1500.00 |
| 1903 |
AMC 12 1990 A Q20 |
\(ABCD\) is a quadrilateral with right angles at \... |
1500.00 |
| 1904 |
AMC 12 1990 A Q22 |
If the six solutions of \(x^6=-64\) are written in... |
1500.00 |
| 1905 |
AMC 12 1990 A Q23 |
If \(x,y>0\), \(\log_yx+\log_xy=\frac{10}{3}\) and... |
1500.00 |
| 1906 |
AMC 12 1990 A Q28 |
A quadrilateral that has consecutive sides of leng... |
1500.00 |
| 1907 |
AMC 12 1990 A Q29 |
A subset of the integers \(1, 2, ..., 100\) has th... |
1500.00 |
| 1908 |
AMC 12 1990 A Q30 |
If \(R_n=\frac{1}{2}(a^n+b^n)\) where \(a=3+2\sqrt... |
1500.00 |
| 1909 |
AMC 12 1986 A Q1 |
\([x-(y-x)] - [(x-y) - x] =\)
$$\textbf{(A)}\ 2... |
1500.00 |
| 1910 |
AMC 12 1986 A Q2 |
If the line \(L\) in the \(xy\)-plane has half the... |
1500.00 |
| 1911 |
AMC 12 1986 A Q4 |
Let \(S\) be the statement
"If the sum of the d... |
1500.00 |
| 1912 |
AMC 12 1986 A Q7 |
The sum of the greatest integer less than or equal... |
1500.00 |
| 1913 |
AMC 12 1986 A Q8 |
The population of the United States in 1980 was \(... |
1500.00 |
| 1914 |
AMC 12 1986 A Q9 |
The product \[\left(1 - \frac{1}{2^{2}}\right)\lef... |
1500.00 |
| 1915 |
AMC 12 1986 A Q10 |
The 120 permutations of the AHSME are arranged in ... |
1500.00 |
| 1916 |
AMC 12 1986 A Q11 |
In \(\triangle ABC\), \(AB = 13\), \(BC = 14\) and... |
1500.00 |
| 1917 |
AMC 12 1986 A Q12 |
John scores \(93\) on this year's AHSME. Had the ... |
1500.00 |
| 1918 |
AMC 12 1986 A Q13 |
A parabola \(y = ax^{2} + bx + c\) has vertex \((4... |
1500.00 |
| 1919 |
AMC 12 1986 A Q15 |
A student attempted to compute the average \(A\) o... |
1500.00 |
| 1920 |
AMC 12 1986 A Q16 |
In \(\triangle ABC\), \(AB = 8\), \(BC = 7\), \(CA... |
1500.00 |