Answer:
Step-by-step explanation:
Anything raise to the power zero is 1
Therefore,

LHS = RHS
Hence Proved
Answer:
25 Cards
Step-by-step explanation:
If 5 cards is 20% and you only need 5 more then that means you have the other 80%. So you 20 80/20 which is 4. Then do 4x5=20 then add the 5 you still need.
So you equal it to 90 and then minus and add the simulators to get x=25
Answer:
120 meters
Step-by-step explanation:
Bob's land is a rectangle, so it has 2 long and 2 short sides. The Long side is 40 meters long, and the short side is 20 meters long.
Let's add them: 40 + 20 = 60 meters
Since we have 2 of those sides, we will multiply it by 2 which we can demonstrate as
60 meters * 2 = 120 meters
Answer:
Step-by-step explanation:
ok just try to figure out the square root if their no certain number you can do an estimate.
For example 625 squared root is 125
For higher one you can use prime factorization to get the prime factors and with that you have to make groups of numbers with the number left side