3 years ago

Simpilfy the following expession (-1)(-7)(4)

Mathematics

1 answer:

Leno4ka [110]3 years ago

8 0

Answer:

Step-by-step explanation:

(-1)(-7)(4)

(7)(4)

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katrin2010 [14]

$\dfrac{n^2+3n+2}{n^2+6n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n^2+2n+n+2}{n^2+4n+2n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n(n+2)+1(n+2)}{n(n+4)+2(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{(n+2)(n+1)}{(n+2)(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{n+1}{n+4}-\dfrac{2n}{n+4}=\dfrac{n+1-2n}{n+4}=\dfrac{1-n}{n+4}$

$Answer:\ \boxed{B.\ \dfrac{1-n}{n+4}}$

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3 years ago

Jamal has two bags of marbles. The first bag contains 5 blue marbles, and 3 green marbles. The second bag contains 4 yellow marb

NeX [460]

Answer:

probability of bag one 62.5% for blue marbles green- 37.5%

probability of bag 2 66.67% for yellow and for blue 33.33%

he will probably get a blue and yellow marble

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2 years ago

Helpppp please ?????

BlackZzzverrR [31]