3 years ago

I WILL MARK AS BRAINLIEST! Solve for X and Y

Mathematics

1 answer:

Vinvika [58]3 years ago

3 0

6.
a- x=-6
b- x=-6/7
c- x=10/3
d- x=18
7.
a- y=8
b- y=-94
c- y=28
d- y=27

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Let X have the probability mass function P(X = −1) = 1 2 , P(X = 0) = 1 3 , P(X = 1) = 1 6 Calculate E(|X|) using the approaches

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Answer:

Step-by-step explanation:

From the given information:

Note that the possible values of Y are 0 and 1 because;

y = 0 if X = 0 and y = 1 if X = ±1

∴

$P(Y =0) = P(X = 0) =\dfrac{1}{3}$

$P(Y = 1) = P(X = -1 \ or \ 1) \\ \\ = P(X = -1) + P(X = 1)$

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$E(|X|) = \sum |x| P(X=x) = ( 1 \times \dfrac{1}{2}) + ( 0\times \dfrac{1}{3}) + ( 1 \times \dfrac{1}{6})$

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3 years ago

(10b-2)-3(3b+3)=-7 thank you plz hurry show steps

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Answer:

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Step-by-step explanation:

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Reflect the following points over the<br> x-axis. (-5, -3) (-2,-6) (-4,-8)

viktelen [127]

Reflect over x-axis rule: (x,y) -> (x,-y)

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Answer:

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Base amount: $6,000.00

Interest Rate: 5% (yearly)

Effective Annual Rate: 5%

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