C. 19.42% because you subtract 389.85 from 314.15 which equals 75.7. So then set it up like an algebraic equation. 389.85x=75.7 divide 75.7 by 389.85 to find the decimal. Then you have to move the decimal to the right two places, since it is a percentage. And then round your answer, so c. 19.42% is your answer. Hope this helped! :)
128.1 / 92.5 * 100 = 140%
Answer:
2.8
Step-by-step explanation:
using cosine rule
= 
s = 
= 2.842 = 2.8
Answer:
1. -√19 2. 4.56 3. √21 4. 23/5
Step-by-step explanation:
