After one year, a sample of radioactive material disintegrates to 92% of the original amount. For each part, round the answer to two decimal places. (a) Find the half-life of the material. yr (b) Find the time at which the material disintegrates to 80% of the original amount. yr

what "following statement"?

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.

210/22 = 9.55

since he can't take part of a person to the game the answer is 9 people

hope this !

c ) y = 2.5 x - 26.25