chapter 4 review

arithmetic, geometric, or neither?

100

1, 3, 5, 7...

arithmetic, d=2

200

7, 14, 28, 56

geometric, r = 2

300

12,24,36,48,60,72,84,96,112

neither

400

21,84,336...

geometric, r=4

500

each team loses 30% of their money but the first team to solve the problem gets it back, if no team has any  money, the team that gets this correct gets 500:

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37, 37,38,39,40

neither, the 37 was there 2 times

find the first 5 terms

100

a₁=5, and d=7

5, 12, 19, 28, 35

200

a₁=14 and r=5

14, 70, 350, 1750, 8750

300

you have the option to either double/lose half your money OR just get 300 if you get the question right.

a₁=32 and d=57

32, 89, 146, 203, 260

400

a₁=38, d= 1376

38, 1414, 2790, 4166, 5542

500

a₁=543,d=972

543,1515,2487,3459,4431

identify nth term

100

a₁=7, d=3, and a_n=5

19

200

earn or lose 200 points with this question

a₁=28, r=3, and a_n=7

20412

300

a₁=32, d=57, a_n=56

3167

400

a₁=38, d=1376, a_n=5234

7200608

500

a₁=543,d=972,a_n=18725

18200271

converting bases

100

31 converted to base 2

11111

200

371 converted to base 4

11303

300

852 converted to base 9

1146

400

bad luck: lose 400

why was i born

500

9209 converted to base 12

511AA

add or subtract bases

100

11₂-01₂

10₂

200

314₅+413₅

1232₅

300

631₇-214₇

414₇

400

good luck: get 400

cool

500

A12₁₁-315₁₁

6A8₁₁