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3 years ago

15

Alex has a piece of

1 answer:

emmainna [20.7K]3 years ago

8 0

Answer:

He cut of 6 feet of ribbon.

Step-by-step explanation:

45

-39

6

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Identify the rational and irrational numbers <br>1.√3/5 <br>2.√7/2<br>3.5-√5<br>4.10/30

Anastaziya [24]

Step-by-step explanation:

<h2>Step-by-step explanation:1) Irrational number</h2><h2>2) Irrational number</h2><h2>3) Irrational number</h2><h2>4) Rational Number</h2>

5 0

3 years ago

The diagram shows a sector of a circle radius 10cm

Yuki888 [10]

Answer:

$\text{Perimeter of sector = 43.6 (Rounded to the nearest tenth.)}$

Step-by-step explanation:

$\text{Perimeter of the sector = Radius + arc length + radius}$

$\text{Radius = 10 cm}$

$\text{Perimeter of the sector = 10 + arc length + 10 }$

$\text{Perimeter of the sector = 20 + arc length }$

$\text{arc length = (sector angle/ 360 ) * perimeter of the circle}$

$\text{Perimeter of a circle }=2\pi r$

$\text{sector angle} = 135$

$\text{arc length} = (135/ 360 ) * 2\pi (10)$

$= (3/8) 20\pi$

$= 15\pi /2$

$\text{Using }\pi =3.14$

$= 15 * 3.14 /2$

$= 23.55$

$\text{Perimeter of the sector = 20 + 23.55}$

$= 43.55$

$= 43.6 cm$

$\text{perimeter of the sector = 43.6 cm }$

8 0

2 years ago

21. Attending a Conference The Sarasota City Council plans

Free_Kalibri [48]

Answer:

28

Step-by-step explanation:

So in order to get this answer you want to use the combination formula which is $\frac{n!}{(n-r)!r!}$

Now you want to use the numbers given to you in the problem which is ₈C₂ and plug those into the equation

so your going to have something looking like this $\frac{8!}{(8-2)!2!}$ now if you have a calculator nearby and you plug in ₈C₂ your going to get 28 which is the answer.

hope this somewhat helps.

7 0

3 years ago

Which number sequence follows the rule multiply by 3, starting from 4?

mixas84 [53]

Answer

12, 36, 108, 324

3 0

3 years ago

marlene is painting square tiles for a project.each tile has a perimeter of 16 in.what is the length of each side.

elixir [45]

Answer:

64 i hope im right

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers