Answer:
The conjecture is that the unit digit of 4^n = 4 when n = odd also 4^n = 6 when n = even
Step-by-step explanation:
![4^1 = 4\\4^2 = 16\\4^3 = 64\\4^4 = 256 \\4^5 = 1024\\4^6 = 4096\\4^7 = 16384\\4^8 = 65536](https://tex.z-dn.net/?f=4%5E1%20%3D%204%5C%5C4%5E2%20%3D%2016%5C%5C4%5E3%20%3D%2064%5C%5C4%5E4%20%3D%20256%20%5C%5C4%5E5%20%3D%201024%5C%5C4%5E6%20%3D%204096%5C%5C4%5E7%20%3D%2016384%5C%5C4%5E8%20%3D%2065536)
The conjecture is that the unit digit of 4^n = 4 when n = odd also 4^n = 6 when n = even
To prove this conjecture
unit digit = 6
hence the property is true for ; n = 1 and n = 2 and also for every odd and even number ( i.e. from 1 to 8 )
Diameter is 18
radius is half of diameter so 9
area is radius*pi ^2 which is 88.83
circumference is diameter * pi so 18*pi = 56.55
20,000 will be the population 40 years from now.
The answer would be "both groups show about the same average time"
Okay what you could do is type 400 divided by 2/3 into a calculator, but on paper you would do 400 divided by 3, which is 150, then multiply 150 by 2 since it’s “2/3’s” of 400.
400 / 3 = 150,
150 x 2 = 300, so 300 is correct.