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natita [175]
3 years ago
10

pita has 12 coins in her bag there are three 1 pound coins and nine 50p coins she takes 3 coins out of the bag at random, work o

ut the probability she takes out exactly £2.50
Mathematics
1 answer:
Alja [10]3 years ago
8 0

Pita has 12 coins in her bag there are three 1 pound coins and nine 50p coins she takes 3 coins out of the bag at random, work out the probability she takes out exactly £2.50

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Answer:

Step-by-step explanation:

Given equation is,

x² + (p + 1)x = 5 - 2p

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Properties for the roots of a quadratic equation,

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2). If the equation has exactly one root, discriminant will be zero [(b² - 4ac) = 0]

3). If equation has imaginary roots, discriminant will be less than zero [(b² - 4ac) < 0].

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For real roots,

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3 years ago
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75 = x

At x = 75

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So, The maximum height of second puck is greater than  first puck

So, Second puck travels farther

5 0
2 years ago
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