Sequences Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | A a_20 = 59 | Easy | Solved step by step |
| 2 | a_n = −4n + 24 | Easy | Solved step by step |
| 3 | B a_8 = 384 | Easy | Solved step by step |
| 4 | S_10 = 155 | Medium | Solved step by step |
| 5 | C a_15 = 38 | Medium | Solved step by step |
| 6 | S_20 = 780 | Medium | Solved step by step |
| 7 | B S_8 = −56 | Harder | Solved step by step |
| 8 | a_25 = 86 | Harder | Solved step by step |
| 9 | C S_4 = 312 | Harder | Solved step by step |
| 10 | a_6 = 2 | Harder | Solved step by step |
Grade
Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.