3 years ago

Write an equation that models the sequence 400, 200, 100, 50, ...

Mathematics

1 answer:

grandymaker [24]3 years ago

4 0

The sequence is probably ×2

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What is the coeffieent of (x^4)(y^4) in the expansion of (x+y)^8

kap26 [50]

ANSWER

The coefficient is 70.

EXPLANATION

The given binomial expression is

$(x+y)^8$

The specific term of a binomial expansion can be determined using the formula,

$T_{r+1}= nC_ra^{n-r}b^r$
where

$n=8,r=4,a=x,b=y$

We substitute these values into the formula to get,

$T_{4+1}= 8C_4x^{8-4}y^4$

We simplify to get,

$T_{5}= 70x^{4}y^4$

Hence the coefficient is 70.

4 0

3 years ago

Answer this and I’ll make you Brainly if it’s right

pogonyaev

Answer: 263/1000

I hope this helped good luck! :)

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3 years ago

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If a=2,c=4 e=-6 then 3a-3(2c-e)

Gnom [1K]

The answer will be negative 36
HOPE IT HELPS,