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Pepsi [2]
2 years ago
13

A circle has a central angle measuring StartFraction 7 pi Over 10 EndFraction radians that intersects an arc of length 33 cm. Wh

at is the length of the radius of the circle? Round your answer to the nearest whole cm. Use 3. 14 for Pi. 11 cm 15 cm 22 cm 41 cm.
Mathematics
1 answer:
cupoosta [38]2 years ago
8 0

The radius of the given circle with a central angle of 7π/10 and arc length of 33cm is 15cm.

It is given that

The central angle of the given circle = 7π/10 radians

Length of arc = 33cm

<h3>What is the formula for arc length?</h3>

Arc length = central angle* radius

From the above formula

Radius = Arc length/Central Angle

Radius = \frac{33}{(7\pi)/10 }

Radius = 15cm

Therefore, radius of the given circle is 15cm.

to get more about circles visit:

brainly.com/question/22965557

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I Need Help! Please!
saveliy_v [14]

This question is a thought experiment.

It's essentially asking "Is 2πr² the same or not the same as π(2r)²?"

To figure it out, simply simplify π(2r)²

=π(2r)²

=π(2r)(2r)

=4πr²

Quite obviously, 2πr² is not the same as 4πr²

4 0
4 years ago
2tan(45-A)/1+tan^2(45-A)=cos2a
AVprozaik [17]

Answer:

Let θ = (45 - A)°.

=> 2Tanθ/ 1 + Tan²θ

=> 2Sinθ/Cosθ / 1 + Sin²θ / Cos²θ

=> 2Sinθ/Cosθ/ Cos²θ + Cos²θ / Cos²θ

=> 2Sinθ/Cosθ/ 1 / Cos²θ

=> 2SinθCos²θ/Cosθ

=> 2SinθCosθ  

=> Sin2θ

But we assumed θ = (45 - A)°,

=> Sin2(45 - A)

=> Sin(90  - 2A)  (∵ Sin(90 - θ) = Cosθ)

=> Cos2A

= R.H.S

Hence proved.

Step-by-step explanation:

3 0
3 years ago
Which expressions are equivalent when m=1 and m=4 ?
m_a_m_a [10]

Answer:

3m+4 & m+4+2m

Step-by-step explanation:

substitute m=1

3(1)+4 and (1)+4+2(1)

4+3=7                    5+2=7

substitute m=4

3(4)+4        4+4+2(4)

12+4=16          8+8=16

8 0
3 years ago
Read 2 more answers
What is the Order of Magnitude for the number of liters in a large bottle of
n200080 [17]

Answer:

Step-by-step explanation:

One-liter and two-liter bottles are the commonest sizes in which soda is sold.

8 0
4 years ago
Keelah’s Clothing Store buys coats for $50 and then sells them for $80. What is the percent of mark up on the price of the coat?
Kaylis [27]
Mark up % = gross profit over cost of sales time 100 (80-50)/50 x 100 = 60% mark up
5 0
3 years ago
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