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NotydoleM
Username
NotydoleM
Score
20
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5 Questions
16 Answers
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Expected Outcome
A standard deck of cards contains 52 cards. These 52 cards are arranged in a circle, at random. Find the expected number of pairs of adjacent cards that are both black.
I know that this expected outcome, where I would have, for example, case 1 where
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NotydoleM
Aug 18, 2023
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66
6
+20
in a race
The expression \[2 \sqrt[3]{3 \sec^2 20^\circ \sin^2 10^\circ}\]can be expressed in the form $a + b \sec 20^\circ,$ where $a$ and $b$ are integers. Find the ordered pair
a,b
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NotydoleM
Jul 31, 2023
+1
75
2
+20
First question?
Find the number of ordered pairs of positive integers $(a,\,b)$ such that $a+b=1000$ and neither $a$ nor $b$ has a zero digit.
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NotydoleM
Jul 7, 2023
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