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3 years ago

Help plsss thank youuuu

Mathematics

1 answer:

MArishka [77]3 years ago

6 0

Answer:

A. (x+5)

Step-by-step explanation:

We are given a quadratic expression $x^2+8x+15$ which we will factorize to see which of the given options is a binomial factor of it.

$x^2+8x+15$

Finding the factors of 15 such that when added, they give a result of 8.

$x^2+3x+5x+15\\\\x(x+3)+5(x+3)\\\\(x+3)(x+5)$

Therefore, we can see that $(x+5)$ is that binomial factor that is present in the given options so option A. (x+5) is the correct answer.

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3 years ago

For a wedding the bride must select 4 bridesmaids from her 6 closest friends and must arrange them in order for the ceremony. Ho

Hitman42 [59]

360 arrangements of 4 bridesmaids from her 6 closest friends are possible !

Step-by-step explanation:

Here we have , For a wedding the bride must select 4 bridesmaids from her 6 closest friends and must arrange them in order for the ceremony. We need to find How many arrangements of 4 bridesmaids from her 6 closest friends. Let's find out:

We know that formula for permutation is given by :

⇒ $nP_r = \dfrac{n!}{(n-r)!}$

According to question we have following parameters as : n = 6 , r = 4

⇒ $6P_4 = \dfrac{6!}{(6-4)!}$

⇒ $6P_4 = \dfrac{6!}{(2)!}$

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⇒ $6P_4 =360$

Therefore , 360 arrangements of 4 bridesmaids from her 6 closest friends are possible !

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4 years ago

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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