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Gemiola [76]
3 years ago
14

What is the arc length when theta= 2pi/5 and the radius is 6 cm?

Mathematics
1 answer:
Ahat [919]3 years ago
4 0

\bf \textit{arc's length}\\\\ s=r\theta ~~ \begin{cases} r=radius\\ \theta =angle~in\\ \qquad radians\\ \cline{1-1} r=6\\ \theta =\frac{2\pi }{5} \end{cases}\implies s=6\cdot \cfrac{2\pi }{5}\implies s=\cfrac{12\pi }{5}\implies s\approx 7.54

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<u>Answer: </u>

Tacos and Pizza both will be served on 12th day of school

<u>Explanation:</u>

Given, pizza is served in the school cafeteria every fourth school day.

And, on every 3rd school day Tacos are being served.

If both are served today then we have to find the number of days after which both will be served on the same day again.

Taking LCM  of 4 and 3 to solve the question,

LCM of 4 and 3 = 4×3 = 12

Therefore, after 12 days both will be served on the same day.

5 0
3 years ago
What is the slope of a line passing through the points (2, 5) and (0, −4) ??
Fittoniya [83]
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3 0
3 years ago
the area of a circle is 81 pi m^2. what is the circumference, in meters? express your answer in terms of pi.
mestny [16]
<h3>Answer:    18pi</h3>

============================================================

Explanation:

The area 81pi square meters leads to the radius 9 meters

Use the formula A = pi*r^2 to see why this is the case. You plug in A = 81pi and solve for r to get r = 9.

-----------------

Once you know the radius, you can determine the circumference C

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C = 2*pi*9

C = 2*9*pi

C = 18pi

The circumference is the perimeter, or distance, around the circle.

8 0
3 years ago
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5 0
3 years ago
Read 2 more answers
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Brut [27]

Answer:

I believe it is C

Step-by-step explanation:

Sorry if I got it wrong but hopefully you got it right

6 0
3 years ago
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