2017 UNCO Math Contest II Answer Key

1) 12

2) $\frac{4}{3}$

3) 985,674,321

4) 102,564

5(a) BEAGCDF

5(b) CAEGBDF

6) $1 + 5n + 5n^2$

7(a) 41

7(b) 41

8) -1

9). ${n}\choose{6}$ + 5${n}\choose{5}$ + 4${n}\choose{4}$ + ${n}\choose{3}$

10) 2, 6, 10, 14… (& other possibilities)

11(a) 16

11(b) 42