Add powers of 3.
1 + 3 = 4
4 + 9 = 13 = 4 + 3^2
13 + 27 = 40 = 13 + 3^3
40 + 81 = 121 = 40 + 3^4
Now you need to add 3^5 to 121.
121 + 3^5 = 121 + 243 = 364
The answer is 6.25 square kilometres
one side is 1.25 and the other will be 1.25*4 =5
and for the area we multiply the two 1.25*5=6.25
Step-by-step explanation:
first one is 6:9
second is 20:40
sorry I'm not sure about the others!
Answer:
1
Step-by-step explanation:
The radius is half the size of the diameter.
2 / 2 = 1
Answer:
Two numbers whose product is 1 are called reciprocals
Step-by-step explanation:
