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IgorLugansk [536]
3 years ago
10

What is (12x+5)+(-10x-3)​

Mathematics
2 answers:
kvasek [131]3 years ago
7 0

Answer:

2+2

Step-by-step explanation:

There ya go

Ghella [55]3 years ago
5 0
2x+2 #beansssssssssssssssssssssssssssss
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If you draw four cards at random from a standard deck of 52 cards, what is the probability that all 4 cards have distinct charac
mezya [45]

There are \binom{52}4 ways of drawing a 4-card hand, where

\dbinom nk = \dfrac{n!}{k!(n-k)!}

is the so-called binomial coefficient.

There are 13 different card values, of which we want the hand to represent 4 values, so there are \binom{13}4 ways of meeting this requirement.

For each card value, there are 4 choices of suit, of which we only pick 1, so there are \binom41 ways of picking a card of any given value. We draw 4 cards from the deck, so there are \binom41^4 possible hands in which each card has a different value.

Then there are \binom{13}4 \binom41^4 total hands in which all 4 cards have distinct values, and the probability of drawing such a hand is

\dfrac{\dbinom{13}4 \dbinom41^4}{\dbinom{52}4} = \boxed{\dfrac{2816}{4165}} \approx 0.6761

4 0
2 years ago
Yvette uses 6 grams of tea leaves to make 24 fluid ounces of tea. last week she made 288 fluid ounces of tea. how many grams of
Marysya12 [62]
6 grams of tea: 24 fluid ounce of tea
? grams of tea: 288 fluid ounces
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7 0
3 years ago
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Alenkasestr [34]

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ANSWER

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