Jackie set her watch 19 seconds behind, and it falls behind another 1 second every day.

Mathematics

1 answer:

Lunna [17]4 years ago

8 0

Answer:

Step-by-step explanation:

the watch was alredy 19 seconds behind so you take 46 and subtract 19 and you get 27

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Christy draws 3 cards from the deck one at a time without replacement. What is the probability of selecting the cards in the ord

Inga [223]

Start with a deck of 52 cards. Draw 1 card. Probability of drawing a diamond first:

$\dfrac{\binom{13}1}{\binom{52}1}$

Now draw another single card from the deck, which now contains 51 cards. Probability of drawing a spade:

$\dfrac{\binom{13}1}{\binom{51}1}$

Draw 1 last card. The deck has 50 cards left, and 12 of these are diamonds. Probability of drawing a diamond:

$\dfrac{\binom{12}1}{\binom{50}1}$

So the probability of drawing a diamond, then a spade, then another diamond is

$\dfrac{\binom{13}1}{\binom{52}1}\cdot\dfrac{\binom{13}1}{\binom{51}1}\cdot\dfrac{\binom{12}1}{\binom{50}1}=\dfrac{13}{850}$

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4 years ago

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Ymorist [56]

Answer:

42/49 is the fraction

Step-by-step explanation:

you can't simplify so put the amount correct over the amount total.

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4 years ago

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