It would be 20
21.3
-1.8
------
19.5 rounded would be 20
25 hope it helps have a great day :)
Answer: 
Step-by-step explanation:
With negative powers, 
do the same for s too
To determine the next smaller scale size following the scale size equal to 2.353, we just have to divide this scale size by the scale factor which is given to be 1.33. That is, smaller scale size = 2.353 / 1.33 = 1.77Thus, the next smaller scale size is approximately 1.77.
HOPE THIS HELPS YOU
Answer:
option B
4 a^4 /b
Step-by-step explanation:
Given in the question an expression
√(16 a^8 b^-2)
This expression can also be written as
√16 . √a^8 . √b^-2
Now as we know that
√16 = √4² = 4
√a^8 = √(a². a² . a² . a²) = √a².√ a².√ a².√ a² = a . a . a . a = a^4
√b^-2 = √1/b² = √1 ÷ √b² = 1 ÷ b = 1/b
Rearranging them
4 a^4 1/b = 4 a^4/b
<h3>Simplified form of √(16 a^8 b^-2) is 4 a^4/b</h3>
