A certain type of automobile battery is known to last an average of 1,170 days with a standard deviation of 150 days. If 900 of these batteries are selected, find the following probabilities for the average length of life of the selected batteries. (a) The average is between 1150 and 1160.
(b) The average is greater than 1170.
(c) The average is less than 940.

00

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.

20%

step-by-step explanation:

care to share were the trapezoid shown is ?