(multiply the speed value by 88)
871.2 ft per minute
Answer:
A). 101 inches
B). 110 years
Step-by-step explanation:
Years since planting Circumference Difference
1 3 -
2 5 (5 - 3) = 2
3 7 (7 - 5) = 2
4 9 (9 - 7) = 2
5 11 (11 - 9) = 2
6 13 (13 - 11) = 2
There is a difference of 2 in every successive term of the circumference.
Therefore, the given sequence is an arithmetic sequence.
Explicit formula of an arithmetic sequence is given by,
![A_n=a+(n-1)d](https://tex.z-dn.net/?f=A_n%3Da%2B%28n-1%29d)
Here a = first term
n = number of terms
d = common difference
From the given table,
![A_n=3+(n-1)2](https://tex.z-dn.net/?f=A_n%3D3%2B%28n-1%292)
![A_n=2n+1](https://tex.z-dn.net/?f=A_n%3D2n%2B1)
Here
= circumference after 'n' years
n = Age of the plant
By this formula,
Circumference of a tree after 50 years,
![A_{50}=2(50)+1](https://tex.z-dn.net/?f=A_%7B50%7D%3D2%2850%29%2B1)
= 101 inches
Age of tree with the circumference = 221 inches,
221 = 2n + 1
2n = 220
n = 110 years
All these rooms are rectangles so to find the area of the rooms multiply length by width.
Living Room: 5x4 = 20 m²
Kitchen: 4x3 = 12 m²
Dining Room: 4x2 = 8 m²
The area of a lateral area of the cylinder is L.S.A. and =
![2\pi ph](https://tex.z-dn.net/?f=%202%5Cpi%20ph%20%20)
<span>
i cant use the pie symbol on here </span>
Answer:
b = -1
Step-by-step explanation:
-7+b= -8
Add 7 to each side
-7+7+b= -8+7
b = -1