Which long division problem can be used to prove the formula for factoring the difference of two perfect cubes?
Oa-bla? + ab +62
O a+b) a?-ab + b 2
O a+b)d? +Da+b+ Dab? - 60
Oa-ba+0a?b+ Dab? - b
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54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.