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IgorC [24]
3 years ago
7

How to find the circumference of a circle​

Mathematics
1 answer:
Romashka [77]3 years ago
8 0
  1. C = πd. In this equation, "C" represents the circumference of the circle, and "d" represents its diameter. That is to say, you can find the circumference of a circle just by multiplying the diameter by pi. Plugging π into your calculator will give you its numerical value, which is a closer approximation of 3.14 or 22/7.
  2. The radius is half as long as the diameter, so the diameter can be thought of as 2r. Keeping this in mind, you can write down the formula for finding the circumference of a circle given the radius: C = 2πr. In this formula, "r" represents the radius of the circle. Again, you can plug π into your calculator to get its numeral value, which is a closer approximation of 3.14.
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Saima goes to her friend every 15 days and laiba goes to same friend every 18 days.After how many days saima and laiba will visi
jok3333 [9.3K]

Answer:

33 days

Step-by-step explanation:

15 + 18 = 33

3 0
3 years ago
The number of accidents that occur at a busy intersection is Poisson distributed with a mean of 4.5 per week. Find the probabili
Mariana [72]

Answer:

a) 0.01111

b) 0.4679

c) 0.33747

Step-by-step explanation:

We are given the following in the question:

The number of accidents per week can be treated as a Poisson distribution.

Mean number of accidents per week = 4.5

\lambda= 4.5

Formula:

P(X =k) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\ \lambda \text{ is the mean of the distribution}

a) No accidents occur in one week.

P(x =0)\\\\= \displaystyle\frac{4.5^0 e^{-4.5}}{0!}= 0.01111

b) 5 or more accidents occur in a week.

P( x \geq 5) = 1-\displaystyle \sum P(x

c) One accident occurs today.

The mean number of accidents per day is given by

\lambda = \dfrac{4.5}{7} = 0.64

P(x =1)\\\\= \displaystyle\frac{0.64^1 e^{-0.64}}{1!}= 0.33747

5 0
3 years ago
I need help with this but take your time it is early!
IgorC [24]

Answer:

Each part is 3.5 inches long.

Step-by-step explanation:

The ruler has a length of 7-inches, so when you want to split it directly in half, you divide 7/2. This is the number 3.5 inches. On the ruler you can see when looking at the first segment that it goes from 0 inches to half-way between 3 inches and 4 inches, which is 3.5 inches.

4 0
3 years ago
Read 2 more answers
a museum has 13486 butterflies, 1856 ants, and 13859 beetles. what is the order of the insects from least number to greatest num
k0ka [10]
1856 13,486 13,859
Ants, butterflies, beetles
Just look for the smallest number out of the three and then the smallest out of the two left, like 10,2,20. 2, 10, 20
3 0
3 years ago
Read 2 more answers
someone help me please for 12 points!!! the first five steps of a pattern are shown, what are the next three steps in the patter
prisoha [69]

The -9 stays the same the whole time but the other number being multiplied decreases by one each layer, so the next three would be:

-9 x -1 = 9

^^^ -1 is in the second multiplication slot bc 0 - 1 = -1

-9 x -2 = 18

^^^ -2 is in the second multiplication slot bc 0 - 2= -2

-9 x -3 = 27

^^^ -3 is in the second multiplication slot bc 0 - 3 = -3

***Remember that when you are multiplying two negative numbers the solution will be positive

Hope this helped!

5 0
3 years ago
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