Answer:
The graph is symmetric. The mean and median are about equal in a symmetric graph. The median is shown as 109, so the mean is approximately 109.
Step-by-step explanation:
The graph is symmetric.
Because the graph is symmetric, the mean and median should be approximately equal.
According to the graph, the median is 109. Therefore, the mean is approximately 109.
Answer:
131.88cm
Step-by-step explanation:
Implement the formula for circumference of a circle:
2×pi(3.14)×r, r= 21cm and pi is given as 3.14. Substitute your given values into the formula above:
2 × 3.14 × 21= 131.88cm to the nearest hundreth
Answer: ![f(n)= 2.5(3)^{n-1}](https://tex.z-dn.net/?f=f%28n%29%3D%202.5%283%29%5E%7Bn-1%7D)
Step-by-step explanation:
The given sequence : 2.5,7.5,22.5,67.5,202.5
here first term (a)= 2.5
Second term = 7.5
Third term = 22.5 and so on
The difference between the two consecutive terms is increasing but have common ratio as:
Common ratio (r) = ![\dfrac{Second\ term}{First\ term}=\dfrac{7.5}{2.5}=3](https://tex.z-dn.net/?f=%5Cdfrac%7BSecond%5C%20term%7D%7BFirst%5C%20term%7D%3D%5Cdfrac%7B7.5%7D%7B2.5%7D%3D3)
So this sequence follows geometric progression.
nth term in GP = ![ar^{n-1}](https://tex.z-dn.net/?f=ar%5E%7Bn-1%7D)
Required function notation: ![f(n)=ar^{n-1}= 2.5(3)^{n-1}](https://tex.z-dn.net/?f=f%28n%29%3Dar%5E%7Bn-1%7D%3D%202.5%283%29%5E%7Bn-1%7D)
i.e. the function notation of given sequence : ![f(n)= 2.5(3)^{n-1}](https://tex.z-dn.net/?f=f%28n%29%3D%202.5%283%29%5E%7Bn-1%7D)