The formula for any arithmetic sequence is a n = a 1 + d(n - 1), where a n represents the value of the nth term, a 1 represents the value of the first term, d represents the common difference, and n represents the term number. what is the formula for the arithmetic sequence -7, -3, 1, 5, an = 5 + 4(n - 1) an = 4 + (-7)(n - 1) an = -7 + 4(n - 1) an = -7 + 5(n - 1)

a1 = - 7

d = 4

an = - 7 + 4(n - 1)

Try a4

a4 = - 7 + 4(4 - 1)

a4 = -7  + 4*3

a4 = -7 + 12

a4 = 5 which it does.

24 units

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.