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Ilya [14]
3 years ago
6

Help me plzzzzzzzz with this

Physics
1 answer:
Dennis_Churaev [7]3 years ago
5 0
The second one is the answer
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1m/s is the acceleration used. C

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Which type of wave cannot travel through a vacuum? visible light waves X-ray waves gamma ray waves sound waves
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Describe some basic guidelines for safe PRE
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PRE stands for progressive resistance exercises. This refers to exercises which progressively increase the load applied to the muscles. Here are some guidelines for safe PRE:

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3 years ago
A player throws a fair die and simultaneously flips a fair coin. If the coin lands heads, then she wins twice, and if tails, the
vlabodo [156]

Answer:

4.375

Explanation:

Let random variable be X represent the result of toss coin

Let Y be the random variable represent number on dice.

Probability of getting heads = P(H) = 1/2

Probability of getting tails = P(T) = 1/2

Probability of getting number ob die

P(1) = P(2) = P(3) = P(4) = P(5)  =P(6) = 1/6

Expected winning when coin landed head

E_{Head}(\dfrac{Y}{X}) = E(2Y).P(X = H)

=2. \dfrac{1}{2}(1.\dfrac{1}{6}+2.\dfrac{1}{6}+3.\dfrac{1}{6}.......+6..\dfrac{1}{6})

= 3.5

Expected winning when coin landed tails

E_{Tails}(\dfrac{Y}{X}) = E(\dfrac{1}{2}Y).P(X = T)

=\dfrac{1}{2}. \dfrac{1}{2}(1.\dfrac{1}{6}+2.\dfrac{1}{6}+3.\dfrac{1}{6}.......+6..\dfrac{1}{6})

= 0.875

Expected winning

= E_{Head}(\dfrac{Y}{X}) + E_{Tails}(\dfrac{Y}{X})

= 3.5 + 0.875

= 4.375

5 0
3 years ago
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