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  2. Hilbert's problems - Wikipedia

    en.wikipedia.org/wiki/Hilbert's_problems

    Problems 1, 2, 5, 6, [g] 9, 11, 12, 15, 21, and 22 have solutions that have partial acceptance, but there exists some controversy as to whether they resolve the problems. That leaves 8 (the Riemann hypothesis ), 13 and 16 [ h ] unresolved, and 4 and 23 as too vague to ever be described as solved.

  3. Twelfth grade - Wikipedia

    en.wikipedia.org/wiki/Twelfth_grade

    A 12th grade visual arts class in Scott County, Virginia in the United States. Twelfth grade (also known as 12th grade, grade 12, senior year, or class 12) is the twelfth and final year of formal or compulsory education. It is typically the final year of secondary school and K–12 in most parts of the world. Students in twelfth grade are ...

  4. AP World History: Modern - Wikipedia

    en.wikipedia.org/wiki/AP_World_History:_Modern

    55 questions: 55 minutes: 40% Section I, Part B: Short-Answer Questions: 3 questions (2 required questions + 1 chosen from 2 others) 40 minutes: 20% Section II Part A: Document-Based Question: 1 question: recommended 60 minutes (includes 15-minute reading period) 25% Section II, Part B: Long Essay Question: 1 question (3 options) recommended 40 ...

  5. ACT (test) - Wikipedia

    en.wikipedia.org/wiki/ACT_(test)

    The second section is a 60-minute, 60-question math test with the usual distribution of questions being approximately 14 covering pre-algebra, 10 elementary algebra, 9 intermediate algebra, 14 plane geometry, 9 coordinate geometry, and 4 elementary trigonometry questions. [31] However, the distribution of question topics varies from test to test.

  6. AP English Language and Composition - Wikipedia

    en.wikipedia.org/wiki/AP_English_Language_and...

    The multiple-choice section of the test features 45 questions, divided between 23-25 reading questions and 20-22 writing questions. [3] There are typically 4 short passages divided between pre-20th century non-fiction prose, and 20th and 21st century non-fiction prose.

  7. Lists of unsolved problems - Wikipedia

    en.wikipedia.org/wiki/Lists_of_unsolved_problems

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  8. Fix problems sending AOL Mail

    help.aol.com/articles/aol-mail-troubleshooting

    If you see an image challenge question when sending mail, you should just be able to complete the challenge then send mail. If, however, you correctly answer the image challenge and still can't send mail, it could be a sign of a more serious issue with your account, which may require additional steps to secure your account.

  9. Multiple choice - Wikipedia

    en.wikipedia.org/wiki/Multiple_choice

    Multiple choice questions lend themselves to the development of objective assessment items, but without author training, questions can be subjective in nature. Because this style of test does not require a teacher to interpret answers, test-takers are graded purely on their selections, creating a lower likelihood of teacher bias in the results ...