What is the solution to x3 + 4x2 > x + 4? A) -4 < x < -1
B) -4 < x < 1
C) -4< x < -1 or x > 1
D) x < -4 or -1< x < 1

a

Step-by-step explanation:

-4 < x < -1

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.