A box contains 7 red and 3 green balls. Two are picked out at random.
Find the probability that:
the balls are different colour

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Ответ:

leo4687

15.01.2022

Mathematics

answer: hence, function will be

$y=85(\frac{3}{4})^x$

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

$y=85(1-\frac{25}{100})^x\\\\y=85(\frac{100-25}{100})^x\\\\y=85(\frac{75}{100})^x\\\\y=85(\frac{3}{4})^x$

here, y is the total value of the text book after x owners.

hence, function will be

$y=85(\frac{3}{4})^x$

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A box contains 7 red and 3 green balls. Two are picked out at random. Find the probability that: the balls are different colour