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Answer:
Speed is a way of measuring how quickly something is moving or being done, or something moving fast. An example of speed is a car being driven 45 miles per hour. ... Speed is defined as to help someone or something along, or move too quickly
Answer:
f) - 4x^2+9x+7
g)5x+7=27
h)a number subtracts five gives seven
I) angle R
J) two maths texts of class x cbse syllabus
Step-by-step explanation:
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