Question

5. The coin immersed in water appears to be raised.​

Answer 1

Answer:

It is due to refraction of light to water image.

Hope it helps you ✌️

Answer 2

Answer:

5(x−1)−2(x+8)=9

5(x−1)−2(x+8)=95x−5−2x−16=9

5(x−1)−2(x+8)=95x−5−2x−16=95x−2x−5−16=9

5(x−1)−2(x+8)=95x−5−2x−16=95x−2x−5−16=93x−21=9

5(x−1)−2(x+8)=95x−5−2x−16=95x−2x−5−16=93x−21=93x=9+21

5(x−1)−2(x+8)=95x−5−2x−16=95x−2x−5−16=93x−21=93x=9+21x=30÷3

5(x−1)−2(x+8)=95x−5−2x−16=95x−2x−5−16=93x−21=93x=9+21x=30÷3x=10

5(x−1)−2(x+8)=95x−5−2x−16=95x−2x−5−16=93x−21=93x=9+21x=30÷3x=10