Ask question

Ask question

All categories

Alenkasestr [34]

2 years ago

12

Three circles are arranged in a row so that each is tangent to the

1 answer:

lorasvet [3.4K]2 years ago

7 0

<span>πd is the circumference of a circle, so with a diameter of 4 a single circle has a circumference of 4π. 1/3 of each circle is in contact with the belt, so that total part is still 4π. Then, the part of the belt connecting from tangent to tangent is 2 radii, so 3 areas is 12. The belt would then be 12+4π cm.</span>

You might be interested in

I need help. i answered this 4 times and i cant figure it out.

Lubov Fominskaja [6]

Answer:

x=55°

Step-by-step explanation:

Add angles together and set to 180°. Solve for x.

5 0

3 years ago

Read 2 more answers

What is 3z + 2 when z = 2?

I am Lyosha [343]

Answer:

b 8

Step-by-step explanation:

just replace the z with a 2 and solve

3(2)+2

4 0

3 years ago

Read 2 more answers

( 2 7/8 + 3 3/8 ) + 1 1/8 =

Monica [59]

<em>Look</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em><em>⤴</em>

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>

5 0

3 years ago

What is the formula for the nth term of the given sequence 100, 20, 4, …

Naily [24]

Answer:

$a_n=100 \left(\dfrac15\right)^{n-1}$

Step-by-step explanation:

General equation of geometric sequence: $a_n=ar^{n-1}$

Given:

a₁ = 100
a₂ = 20
a₃ = 4

$\implies a_1=a=100$

$\implies a_2=100 \cdot r=20$

$\implies a_3=100 \cdot r^2=4$

Common ratio:

$r=\dfrac{a_3}{a_2}=\dfrac{4}{20}=\dfrac15$

Therefore:

$a_n=100 \left(\dfrac15\right)^{n-1}$

6 0

1 year ago

3x + 5y + 7x - 3y<br> Simplify

sweet-ann [11.9K]

Combine like terms so you end up with 10x+2y

4 0

3 years ago