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3 years ago

In circle M with m \angle LMN= 82m∠LMN=82 and LM=9LM=9 units find area of sector LMN.

Mathematics

2 answers:

wlad13 [49]3 years ago

7 0

Answer:

369/2pi

Step-by-step explanation:

81pi=area of whole circle (pi*r^2)

LMN=82

Area of LMN= 41/180*area of circle

41/180*81pi=

369/2 pi

mario62 [17]3 years ago

6 0

We know that the area of a sector is given by:

$A = \dfrac{\pi r^2\alpha}{360}$

Where α is the angle in degrees and r is the radius. We have:

r = 9
α = 82°

Evaluating:

$A = \dfrac{\pi r^2\alpha}{360} = \dfrac{\pi(9)^2\cdot 82}{360} = 57.96\ u^2$

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nalin [4]

Answer:

At what time will 90% of the population have heard the rumor?

The rumor was heard by 90% of the population in 5.9 hours or 5 hours and 54 minutes

So, at 1:54 pm, 90% of the population had heard the rumor.

Step-by-step explanation:

To resolve this exercise we need to know the exponential model:

$P_(_t_)= P_0 *e^k^t$ (1)

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