16. The circle Chas centre (5, 13) and touches the x-axis.
(a)
Find an equation of C in terms of x and y.
(b)
Find an equation of the tangent to Cat the point (10.1), giving your answer in the form
ay+bx+c = 0, where a, b and c are integers.

i need more information to answer

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.