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3 years ago

You have nine books that you want to arrange on a book shelf. How many different ways can you arrange the books on one shelf?

Mathematics

1 answer:

laila [671]3 years ago

8 0

oh its easy you can do 3 books each layer

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How many solutions are there to the equation below 9x + 27 = 9( x + 2 ) + 9

Nataly [62]

Let's solve the equation:

9x+27 = 9(x+2)+9 ← Distribute 9 to the x and 2

9x+27 = 9x+18+9 ← Combine like terms

9x+27 = 9x + 27 ← Subtract 27 from both sides

9x = 9x

Infinitely many solutions would be correct because no matter what x is, it will always equal each other the both sides of the equation because it is 9 times x on both sides.

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2 years ago

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Factor each expression <br> 31

katrin2010 [14]

You can’t factor 31 since it’s a prime number luv

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3 years ago

Will mark brainliest

TEA [102]

Answer:

The width is 2.

Step-by-step explanation:

The equation is 2 x 3 x ? = 12.

It is 2 long

It is 3 in height

2 x 3 = 6

6 x 2 = 12

so 2 is the width.

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2 years ago

What is the value of y? Show work

romanna [79]

Answer:

Sum of the interior angles of the triangle is 180°.

According to the above problem,

$4y + (y + 11) + 39 = 180 \\ 5y + 50 = 180 \\ 5y = 130 \\ y = \frac{130}{5} \\ \boxed{y = 26}✓$

<h3><u>y=26</u><u>°</u> is the right answer.</h3>

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3 years ago

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Solve number 8 (geometry)

ANEK [815]

Answer:

x = 50

Step-by-step explanation:

the word bisects means that it cuts in half (this is how I understand it, not the official definition :D)

so that means

$\angle XAB =\angle BAY\\\\2x=100\\\\x=50$

3 0

3 years ago