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givi [52]
3 years ago
11

What adds to get 15 and multiplies to get negative 20

Mathematics
1 answer:
kakasveta [241]3 years ago
5 0
This is a very hard questions but i tried my best and i tried and even tried decimals! but it was too hard for me! sorry!
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Write 9.36( repeating) as a mixed number in simplest form.
Deffense [45]

Answer:

Step-by-step explanation:

9.36 is 9 9/25

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3 years ago
Theoretical probability<br> P(rolling a 2)<br> P(rolling a 5)
zysi [14]

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yes indeed..... (wdm? u never finished the question)

Step-by-step explanation:

8 0
3 years ago
Please help with this ​
aleksandrvk [35]
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2 years ago
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

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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
3x +1 = 4<br> Solve the equation
zmey [24]

Answer:

1=x

Step-by-step explanation:

6 0
3 years ago
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