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3 years ago

2x - 2y = -8 x + 2y = -1 (-3,1) O (-14, 1) (0,4) (1,5)

Mathematics

1 answer:

trasher [3.6K]3 years ago

6 0

Answer:

2x - 2y = -8

x + 2y = -1

3x = -9

x = -3

-3 + 2y = -1

2y = 2

y = 1

(-3, 1) is the solution

Step-by-step explanation:

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8. A company makes electronic components for TV's. 95% pass final inspection (and 5% fail and need to be fixed). 120 components

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Binomial probability distribution

Probability of <u>exactly x successes on n repeated trials, with p probability</u>, and has variance given by:

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In this problem:

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2 years ago

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Next,

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Then

$(\mathbf a+\mathbf b)\times\mathbf b=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\10&8&0\\-4&8&0\end{vmatrix}=112\,\mathbf k$

$((\mathbf a+\mathbf b)\times\mathbf b)\times\mathbf k=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\0&0&112\\0&0&1\end{vmatrix}=\mathbf 0$

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3 years ago

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