Answer:
20=4*5
Step-by-step explanation:
Answer:HOLA I Do not speack spanish
Step-by-step explanation:
Answer:
undefined
Step-by-step explanation:
Given

Required
Determine 
We know that:

This gives:


Collect like terms


Take square roots


By tan identity


undefined
Answer:
20 hours hope this helps :)
Step-by-step explanation:
Answer:
Step-by-step explanation:
9kg