Find the length of the third side. If necessary,
write in simplest radical
form.

Hypotenuse^2 = Opposite^2 + Adjacent^2

Step-by-step explanation:

Here,

      Hypotenuse = 4

      Opposite = 3

find Adjacent side(x).

So,

Hypotenuse^2 = Opposite^2 + Adjacent^2

=> 4^2 = 3^2 + x^2

=> 16-9 = x^2

=> x^2 = 7

∴ x = √7

Hope this helps!!

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.