It’s 21.9 hope this helps
Answer:
x = ± 
Step-by-step explanation:
Given
x² = 20 ( take the square root of both sides )
x = ± 
which can be simplified to
x = ± 2
[ ± means plus or minus ]
Answer:
Multiply all the cm and u will get the answer.
Answer:
False i just did it
Step-by-step explanation: