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ki77a [65]
3 years ago
15

The diameter of a circle is 3 meters. What is the circumference?

Mathematics
1 answer:
Gennadij [26K]3 years ago
3 0

Answer:

C≈9.42m

Using any of this formulas

C=2πr

C=2πrd=2r

Solution:

C=πd=π·3≈9.42478m

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Bingel [31]
There is 1000 mm in one meter....
So.....     .9 x 1000 = 900 mm
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3 years ago
The probability that a random student at Elmville College is a freshman is 0.3; a sophomore, 0.25; and a junior or senior, 0.45.
Andre45 [30]
Let L_1 denote the event that a student is a freshman, L_2 a sophomore, L_3 a junior, and L_4 a senior.

Let E denote the event that a student majors in engineering. By the law of total probability,

\mathbb P(E)=\mathbb P(E\cap L_1)+\mathbb P(E\cap L_2)+\mathbb P(E\cap L_3)+\mathbb P(E\cap L_4)

By the definition of conditional probability, we can expand each of these intersection probabilities to get

\mathbb P(E)=\mathbb P(E\mid L_1)\mathbb P(L_1)+\mathbb P(E\mid L_2)\mathbb P(L_2)+\mathbb P(E\mid L_3)\mathbb P(L_3)+\mathbb P(E\mid L_4)\mathbb P(L_4)

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8 0
3 years ago
It took a colony of termites 3 days to eat through a piece of wood that measured 2 inches wide by 4 long. How long would it take
Komok [63]

Answer:

3 days = 2 by 4 wood

2x4 is 8 so

8x5 is 40

so the answer is 40

c:

5 0
3 years ago
GUYSSS PLEASE HELP MEEE PLEASSEEEEEE
nevsk [136]
This isn’t maths but i’ll explain it to you!

doctors use placebo to see if a patient is lying/faking symptoms, placebos are simply useful to boost people or see if people are lying, what i mean by boost people is when people manifest things they think it’s actually going to happen, for example if they manifest their crush is going to like them and they talk to them and one day their crush confesses, they think it’s the manifestation but it was actually because they interacted with their crush a lot
4 0
3 years ago
if Jazzy sells her old bike for $104 and some toys for 68 she uses the money for four month karate lessons the cost of lessons i
Vedmedyk [2.9K]

Answer:

C

Step-by-step explanation:

She sells her bike for 104 dollars

She sells toys        <u>for  68 dollars</u>

Total                             172

The question is a bit ambiguous. There are 4 divisions. So I would assume that you need to divide 172 by 4. If you do that you get 43

I think that what they are getting at is the answer is C. There are 4 months shown. And 1 month would be 43 dollars. She has enough for 3 more months.

7 0
3 years ago
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