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Fantom [35]
3 years ago
11

You pick a card at random, put it back, and then pick another card at random. What is the probability of picking a number greate

r than 8 and then picking a 9?
Simplify your answer and write it as a fraction or whole number.
Mathematics
1 answer:
xeze [42]3 years ago
5 0

Answer:

1/9 both times

Step-by-step explanation:

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Answer:

Since,

\frac{d}{dx}x^n = nx^{n-1}

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\frac{d}{dx}(\frac{f(x)}{g(x)})=\frac{g(x).f'(x) - f(x) g'(x)}{(g(x))^2}

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Differentiating with respect to x,

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Differentiating w. r. t x,

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Differentiating w. r. t. x,

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Differentiating w. r. t. t,

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Differentiating w. r. t. p,

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Differentiating w. r. t. t,

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Differentiating w. r. t. y,

\frac{dw}{dy} = \frac{(7+y)(2+2y)-(2y+y^2)}{(7+y)^2} = \frac{14 + 2y + 14y +2y^2 - 2y - y^2}{(7+y)^2}=\frac{14+14y+y^2}{(7+y)^2}

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4 years ago
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tangare [24]
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Step-by-step explanation:

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