Need will mark u as brainliest
an expression is shown below:

the square root of 18 + the square root of 2

which statement is true about the expression?

a: it is rational and equal to 3
b: it is rational and equal to 4
c: it is irrational and equal to 3 times the square root of 2
d: it is irrational and equal to 4 times the square root of 2

good luck on your studies! : )

david edward.

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.