24cm.........................................
Answer:-2,-3
Step-by-step explanation:
A: When you multiply two numbers, their exponents add.
So,

Since 64^1/2 multiplied by itself is 64, then it is the square root of 64.
B: The area is irrational. 7 * √7 is irrational.
Answer: the answer is 1
Step-by-step explanation:
Answer:
its 5.795
Step-by-step explanation: