Answer:
38.485(correct to 5 significant figure)/ 12.25π
Step-by-step explanation:
![\pi(7 {}^{2} )( \frac{90degree}{360deree} )](https://tex.z-dn.net/?f=%5Cpi%287%20%7B%7D%5E%7B2%7D%20%29%28%20%5Cfrac%7B90degree%7D%7B360deree%7D%20%29)
![= \pi(49)( \frac{1}{4} )](https://tex.z-dn.net/?f=%20%3D%20%5Cpi%2849%29%28%20%5Cfrac%7B1%7D%7B4%7D%20%29)
=38.485(cor. to 5 sig.fig.)/ 12.25π
to find arc length of sector,we need to π(radius²)(sector's degree divided by 360 degree)
Answer:
1st - Yes ; 2nd - Yes ; 3rd - Yes ; 4th - No
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
5-1=4
Answer:
The mean for the number of matches that they win in the tournament is 20.
Step-by-step explanation:
For each match, there are only two possible outcomes. Either they win, or they do not. The probability of winning a match is independent from other matches. So we use the binomial probability distribution to solve this problem.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:
![E(X) = np](https://tex.z-dn.net/?f=E%28X%29%20%3D%20np)
The Stomping Elephants volleyball team plays 30 matches in a week-long tournament.
This means that ![n = 30](https://tex.z-dn.net/?f=n%20%3D%2030)
On average, they win 4 out of every 6 matches.
This means that ![p = \frac{4}{6} = \frac{2}{3}](https://tex.z-dn.net/?f=p%20%3D%20%5Cfrac%7B4%7D%7B6%7D%20%3D%20%5Cfrac%7B2%7D%7B3%7D)
What is the mean for the number of matches that they win in the tournament?
![E(X) = np = 30\frac{2}{3} = 20](https://tex.z-dn.net/?f=E%28X%29%20%3D%20np%20%3D%2030%5Cfrac%7B2%7D%7B3%7D%20%3D%2020)
The mean for the number of matches that they win in the tournament is 20.
Answer:
1 apple
Step-by-step explanation:
3-2=1
But if you want to be Technical You still have 3. Because you took them away so you still have what you started with.
but the answer is 1 apple. 193 IQ