Answer:
(under root 81 is equals to 9
under root 144 is equals to 12
under root 169 is equals to 13) these are rational numbers
therefore irrational number is under root 156
Answer: it will take him 4.5 hours to cover same distance
Step-by-step explanation:
Marathon runner covered the whole distance in 4 hours running at a constant speed of 8.1 km per hour.
Speed = distance / time
Distance = speed×time
Therefore, distance covered by the marathon runner in in 4 hours, running at a speed of 8.1 km per hour is
8.1 × 4 = 32.4 kilometers
if he decreased the speed to 7.2 km per hour, the distance remains 32.4 kilometers. Therefore,
At 7.2 km per hour, the time it would take him to cover the same distance would be
Distance/ speed = 32.4/7.2 = 4.5 hours
Answer:
Negitive
Step-by-step explanation:
3.5, y2-y1 / x2-x1 or rise/run
Answer:
I don’t even know, what was the question?
Step-by-step explanation:
