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NeTakaya
3 years ago
13

The formula for the circumference of a circle is C = 2πr, where r is the radius. Rearrange the formula to solve for r and select

the correct option below. . . .
1.) r = C over 2 pi.
2.) r = 2πC.
3.) r = C − 2π.
4.) r = 2 pi over C
Mathematics
2 answers:
ladessa [460]3 years ago
7 0

Answer: 1) r = C over 2 pi

mamaluj [8]3 years ago
6 0
The circumference of a circle is:
C = 2 π r   /: 2 π  ( we will divide both sides of an equation by 2 π )
C / 2π = r
Answer: 1) r = C over 2 pi
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1) simplify 6+4 to 10

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Bored at his job one day, Kenneth sits at his desk and looks at the clock and calculates that every time 5 seconds goes by, he e
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$28.80 per hour

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8 0
3 years ago
How would I do this problem?
Softa [21]

Answer:

Step-by-step explanation:

The sum of the interior angles of an n gon is found by using the following formula.

(n-2)*180 = sum of the interior angles.

(n - 2) * 180 = 3960                     Divide by 180

(n - 2) 180/180 = 3960/180         Show the division

n - 2 = 22                                     Add 2 to both sides.

n -2+2=22+2                               Combine

n = 24

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

To find the size of each angle, use

(n - 2)*180/n

(24 - 2)*180/24

22 * 180/24

3960/24 = 165

===========

another way

===========

You already know there are 24 sides. You are given the sum of the interior angles as 3960

All you really need to do is 3960/24 = 165

8 0
3 years ago
Estion
dalvyx [7]

Using the Poisson distribution, it is found that there is a 0.507 = 50.7% probability that the bird feeder will be visited by at most 5 birds in a 45 minute period during daylight hours.

<h3>What is the Poisson distribution?</h3>

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by:

P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}

The parameters are:

  • x is the number of successes
  • e = 2.71828 is the Euler number
  • \mu is the mean in the given interval.

Considering the average of 15 birds every 2 hours during daylight hours, the mean for a 45-minute period is given by:

\mu = 15 \times \frac{45}{120} = 5.625

The probability that the bird feeder will be visited by at most 5 birds in a 45 minute period during daylight hours is given by:

P(X \leq 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5)

In which:

P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-5.625}(5.625)^{0}}{(0)!} = 0.004

P(X = 1) = \frac{e^{-5.625}(5.625)^{1}}{(1)!} = 0.02

P(X = 2) = \frac{e^{-5.625}(5.625)^{2}}{(2)!} = 0.057

P(X = 3) = \frac{e^{-5.625}(5.625)^{3}}{(3)!} = 0.107

P(X = 4) = \frac{e^{-5.625}(5.625)^{4}}{(4)!} = 0.150

P(X = 5) = \frac{e^{-5.625}(5.625)^{5}}{(5)!} = 0.169

Then:

P(X \leq 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) = 0.004 + 0.02 + 0.057 + 0.107 + 0.15 + 0.169 = 0.507

0.507 = 50.7% probability that the bird feeder will be visited by at most 5 birds in a 45 minute period during daylight hours.

More can be learned about the Poisson distribution at brainly.com/question/13971530

#SPJ1

3 0
2 years ago
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