Area of a circle is Pi multiplied by radius squared
So, we do 3.142*2squared
Which gives you 12.568
so the area of the circle is 12.568 metres squared
Answer:
A(1) = -7
A(4) = -48
A(8) = -769
Step-by-step explanation:
![A(n) = -3.2 ^n - 1.....(1)\\\\Plug \: n= 1\: in \: (1)\\A(1) = -3.2 ^1 - 1 =-3.2-1= -6 -1 \\\huge\red{\boxed{A(1) = -7}}\\\\Plug \: n= 4\: in \: (1)\\A(4) = -3.2 ^4 - 1 =-3.16-1= -48 -1 \\\huge\purple{\boxed{A(4) = -49}}\\\\Plug \: n= 8\: in \: (1)\\A(8) = -3.2 ^8 - 1 =-3.256-1= -768 -1 \\\huge\orange{\boxed{A(8) = -769}}](https://tex.z-dn.net/?f=A%28n%29%20%3D%20-3.2%20%5En%20-%201.....%281%29%5C%5C%5C%5CPlug%20%5C%3A%20n%3D%201%5C%3A%20in%20%5C%3A%20%281%29%5C%5CA%281%29%20%3D%20-3.2%20%5E1%20-%201%20%3D-3.2-1%3D%20-6%20-1%20%20%5C%5C%5Chuge%5Cred%7B%5Cboxed%7BA%281%29%20%3D%20-7%7D%7D%5C%5C%5C%5CPlug%20%5C%3A%20n%3D%204%5C%3A%20in%20%5C%3A%20%281%29%5C%5CA%284%29%20%3D%20-3.2%20%5E4%20-%201%20%3D-3.16-1%3D%20-48%20-1%20%20%5C%5C%5Chuge%5Cpurple%7B%5Cboxed%7BA%284%29%20%3D%20-49%7D%7D%5C%5C%5C%5CPlug%20%5C%3A%20n%3D%208%5C%3A%20in%20%5C%3A%20%281%29%5C%5CA%288%29%20%3D%20-3.2%20%5E8%20-%201%20%3D-3.256-1%3D%20-768%20-1%20%5C%5C%5Chuge%5Corange%7B%5Cboxed%7BA%288%29%20%3D%20-769%7D%7D)
Answer:
Perimeter of Square Q = 49
Step-by-step explanation:
given:
sides P:Q = 2:7
side length of P = 3.5.
First, determine length of side Q by using the ratio
![\frac{2}{7}=\frac{3.5}{side Q}\\side Q = \frac{7*3.5}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B7%7D%3D%5Cfrac%7B3.5%7D%7Bside%20Q%7D%5C%5Cside%20Q%20%3D%20%5Cfrac%7B7%2A3.5%7D%7B2%7D)
The perimeter is 4 times the length of the side
So, Perimeter of square Q = 4 *(7*3.5)/2 = 49
1 to 23
if 23 people put in $5 you get $115 as a total.
so 1:23 are the odds