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2 years ago

If there are12 books on a rack,a person has to choose 5books.

Mathematics

1 answer:

mojhsa [17]2 years ago

3 0

Answer:

330

11 choose 4

$=\frac{11!}{4!\left(11-4\right)!}\\= 330$

Step-by-step explanation:

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Quiz

Serjik [45]

Answer:

Step-by-step explanation:

5^2 = 25 5^3 = 125 them two added together equals 150

6^2 = 36 so 36 plus 36 equals 72

150-72=78

8 0

2 years ago

Read 2 more answers

What is the equation of the line in the graph

earnstyle [38]

b = - 4

slope m = (0 + 4)/(4 - 0) = 4/4 = 1

equation

y = x - 4

7 0

3 years ago

Expand the expression using the distributive property: 6(4x + 5y + 2)

Oksanka [162]

Answer:

24 x + 30 y + 12

Step-by-step explanation:

this is simplified

5 0

3 years ago

I need help on this question as soon as possible

Dennis_Churaev [7]

Answer:

2.5, 5, 7, 8

Step-by-step explanation:

6 0

3 years ago

Convert to the product of multiplication<br>a^2-b^2-4b-4

kirill [66]

$a^2-b^2-4b-4$ in form of multiplication is $(a-b)(a+b)-4(b+1)$ .

<u>Step-by-step explanation:</u>

We know that factors are the numbers that are being multiplied together . As 6532*7 = 45724 .Here 6532 & 7 are the factors and 45724 is product of the factors .

Here , we need to convert to the product of multiplication

a^2-b^2-4b-4 or , $a^2-b^2-4b-4$ :

⇒ $a^2-b^2-4b-4$

We know by identity that , $p^2-q^2 = (p-q)(p+q)$

⇒ $(a-b)(a+b)-4b-4$

Taking common term out as -4 :

⇒ $(a-b)(a+b)-4(b+1)$

Therefore , $a^2-b^2-4b-4$ in form of multiplication is $(a-b)(a+b)-4(b+1)$ .

7 0

3 years ago