Raivion
contestada

.) The terms 4, t, 9 are the start of a sequence.
Part A: If the sequence is arithmetic, what is the value of t?
Part B: If the sequence is geometric, what is the value of t?

Respuesta :

Answer:

see explanation

Step-by-step explanation:

A

If the sequence is arithmetic then the common difference d is

d = t - 4 = 9 -t, that is

t - 4 = 9 - t ( add t to both sides )

2t - 4 = 9 ( add 4 to both sides )

2t = 13 ( divide both sides by 2 )

t = [tex]\frac{13}{2}[/tex] = 6 [tex]\frac{1}{2}[/tex]

----------------------------------------------------------------------

B

If the sequence is geometric then the common ratio r is

r = [tex]\frac{t}{4}[/tex] = [tex]\frac{9}{t}[/tex] ( cross- multiply )

t² = 36 ( take the square root of both sides )

t = [tex]\sqrt{36}[/tex] = 6

A: If the sequence is arithmetic, what is the value of t is 6.5.

B: If the sequence is geometric, what is the value of t is 6.

If the sequence is arithmetic then the common difference d is,

What is the arithmetic sequence?

An arithmetic sequence is a sequence of numbers where the differences between every two consecutive terms are the same.

d = t - 4

d= 9 -t,

that is,

t - 4 = 9 - t ( add t to both sides )

2t - 4 = 9 ( add 4 to both sides )

2t = 13 ( divide both sides by 2 )

t =[tex]\frac{13}{2}[/tex]  = 6.5

If the sequence is geometric then the common ratio r is

r = [tex]\frac{t}{4} =\frac{9}{t}[/tex] =  ( cross- multiply )

t² = 36 ( take the square root of both sides )

t =  [tex]\sqrt{36}[/tex]= 6

Therefore we get,

A: If the sequence is arithmetic, what is the value of t is 6.5.

B: If the sequence is geometric, what is the value of t is 6

To learn more about the sequence visit:

https://brainly.com/question/6561461

#SPJ2

ACCESS MORE