Mathematics was the tool which scientists used to prove their theories and ideas. Mathematics was able to prove whether an idea a certain scientists had was correct or whether it was wrong. With this they wre able to advance the field very rapidly.
A person walking because there moving which is mechanical energy.
Answer: Holder in due course
Explanation:
Holder in due course is the person who trust the negotiable entity or instrument for change through value .The person does not doubt the validity and authenticity of instrument.
The practice performed is value for value exchange in which defectiveness , error late than scheduled criteria is not noticed. Holder in due course is original holder of the instrument and can make the claim over value of instrument.