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3 years ago

Find the circumference of the circle

Mathematics

1 answer:

vaieri [72.5K]3 years ago

4 0

Answer:

72.22

Step-by-step explanation:

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Can anyone help me?

natali 33 [55]

answer is c ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

6 0

3 years ago

Find the critical numbers of the function. (Enter your answers as a comma-separated list. Use n to denote any arbitrary integer

lyudmila [28]

$f(\theta)=10\cos\theta+5\sin^2\theta$

then the derivative is

$f'(\theta)=-10\sin\theta+10\sin\theta\cos\theta$

Critical points occur where $f'(\theta)=0$ . This happens for

$-10\sin\theta+10\sin\theta\cos\theta=0$

$-10\sin\theta(1-\cos\theta)=0$

$\implies-10\sin\theta=0\text{ or }1-\cos\theta=0$

In the first case, we find

$-10\sin\theta=0\implies\sin\theta=0\implies\theta=n\pi$

In the second,

$1-\cos\theta=0\implies\cos\theta=1\implies\theta=2n\pi$

So all the critical points occur at multiples of $\pi$ , or $n\pi$ . (This includes all the even multiples of $\pi$ .)

3 0

3 years ago

How many solutions does this equation have? -3 – 7t = -7t - 3

nignag [31]

Answer:

3)infinitely many solution

Step-by-step explanation:

-3 - 7t = -7t - 3

-7t + 7t = -3 + 3

0 = 0

if there is same number on both side it have infinitely many solution.

hope u like it ‍❤️‍❤️‍‍❤️‍

for any question comment me

3 0

3 years ago

Kim wants to know how many families in her small neighborhood of 70 homes would participate in a neighborhood sports event. She

tatuchka [14]

Answer:

Yes, this is a valid inference because she took a random sample of the neighborhood.

Step-by-step explanation:

As her survey was non bias and completely random and she found that 15% of the families would participate in the event. She claims that 15% of the neighborhood families would be expected to participate in the sports event. So, yes, this is a valid inference because she took a random sample of the neighborhood.

7 0

3 years ago

Read 2 more answers

Where stocks sre traded can be called any of these EXCEPT

jasenka [17]

Had to look for the options and here is my answer.
Where stocks are traded can be called exchange, market, or trading floor and that would be except for INVESTMENT ARENA. There is no such term as investment arena related to trading of stocks. Hope this answer helps.

3 0

3 years ago