3 years ago

Find the 3rd term in the expansion of (a+b)^8 in simplest form.

1 answer:

4 0

Answer:

The fifth term is the middle term of nine, with coefficient given by all the ways of choosing 4 items out of 8 , namely the ways of choosing 4 a 's out of 8 binomial factors.

Step-by-step explanation:

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I would say "At the bottom of each page".

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3 years ago

Plz hellllppppp -9+n/4 = -7

svetlana [45]

Answer:

n=-37

Step-by-step explanation:

9+n/4 = -7

First, we multiply each side by 4:

9+n= -28

Subtract 9 from both sides

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Step-by-step explanation:

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2 years ago

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Write the following as an expression: How much water do I need to add to l liters of pure alcohol to obtain a solution of 45% al

vredina [299]

Answer:

see below

Step-by-step explanation:

amount of water w

l liter of pure alcohol = 100% alcohol

solution is 45 % percent alcohol

total amount of fluid is w+l

(w+l)( .45) = l*.100

Distribute

.45w + .45 l = 1l

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w = .55l / .45

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3 years ago