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Tatiana [17]
2 years ago
13

D%7B1%20%2B%20tan%20%5Calpha%20%7D%20" id="TexFormula1" title=" \frac{cot \alpha }{1 + cot \alpha } = \frac{1}{1 + tan \alpha } " alt=" \frac{cot \alpha }{1 + cot \alpha } = \frac{1}{1 + tan \alpha } " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
strojnjashka [21]2 years ago
8 0
Im not sure what its asking.. whats the question?
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You and a friend play a game where you each toss a balanced coin. If the upper faces on the coins are both tails, you win $2; if
Kipish [7]

Answer:

E(Y) = $0.5

Var(Y)  = 14.25

you should pay the same amount  $0.5

Step-by-step explanation:

E(Y) =  = Σ(YP)

P = probability of each outcomes.

Var(Y) = ΣY^{2}p − (μ x μ)

E(Y) = (2 x 0.25) +(6 x 0.25) + (0.5 x (-3)) = $0.5

Var(Y) = (2^{2}\\x 0.25) + (6^{2} x 0.25) +(-3^{2} x 0.5) - (0.5^{2})

       = 14.5 - 0.25

Var(Y)  = 14.25

for the difference between the payoff and cost of playing to have mean 0, you should pay the same amount  $0.5

3 0
3 years ago
The GCF of an odd number and an even number is always even
Oxana [17]
The answer is No it is not
7 0
3 years ago
Whats 20% of 40?<br> (find the percentage of the whole)<br> im also giving brainliest!!!
Nataliya [291]
0.2 x 40
=8
(change the percentage to a decimal)
6 0
3 years ago
Please help me with this Question
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A 4 pack of jump ropes costs $15.28. What is the unit price? per jump rope​
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Answer:

Each jump rope will cost: $15.28 ÷ 4 = $3.82

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3 years ago
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