Help please! any1 know this

C, 3

Step-by-step explanation:

By creating a best line of fit you can get the sets of points (16,50) and (12,40)

Using these to find the slope we can get  

-10/-4 is 2.5 The best approximation would be C, because if you round it up to the nearest number you would get 3.

sine

step-by-step explanation:

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.