anonymous
  • anonymous
A true-false test has 12 questions. John guesses each answer. How many different ways are there for him to answer all the questions?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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kropot72
  • kropot72
The number of ways to answer all the questions is\[\large 2^{12}=you\ can\ calculate\]
anonymous
  • anonymous
There are two ways that John could guess each answer: true or false. Therefore, in order to get all possible question answers, you take 2*2*2... or 2^12 to get 4,096 possible ways John could answer. Hope this helps! :D
anonymous
  • anonymous
how would i solve this in the form of a permutation?

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Sepeario
  • Sepeario
You mean like \[nPr\]
anonymous
  • anonymous
yes
Sepeario
  • Sepeario
I honestly have no idea. I tried putting like 10 different numbers into the permutation calculator and it didn't come up with the answer above..
anonymous
  • anonymous
ahah don't worry about it, I'll just ask my teacher when i see him next time :) thank you though!

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