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m_a_m_a [10]
3 years ago
13

Which algebraic expression is equivalent to the expression below 6 parentheses 2x + 7 parentheses -5

Mathematics
1 answer:
Inga [223]3 years ago
8 0
If I understand this, you have the equation 6(2x+7)-5. This is equal to 12x+37. Hope this helps.   
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Answer:

CD = 3

Step-by-step explanation:

Given

CD = x

BC = 5x - 5

BD = 2x + 7

Required

Determine CD

Since, C is a point on BD, the relationship between the given parameters is;

BD = BC + CD

Substitute the values of BD, BC and CD

2x + 7 = 5x - 5 + x

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2x - 5x - x = -5 - 7

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Divide both sides by -4

\frac{-4x}{-4} = \frac{-12}{-4}

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To determine the length of CD;

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Step-by-step explanation:

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Answer:

The probability that M produces a word that looks like a byte is (\frac{2}{3})^8.

Step-by-step explanation:

It is given that a message source M of a digital communication system outputs a word of length 8 characters.

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Total possible outcomes is

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We need to find the probability that M produces a word that looks like a byte (i.e., no appearance of ‘2’). It means only 0 and 1 are included in the word.

Total favorable outcomes is

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The formula for probability is

p=\frac{\text{Favorable outcomes}}{\text{Total outcomes}}

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Therefore the probability that M produces a word that looks like a byte is (\frac{2}{3})^8.

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