Use sigma notation to represent the sum of the first eight terms of the following sequence: 4, 7, 10, … the summation from n equals 1 to 8 of negative 4 plus 3 times n the summation from n equals 1 to 8 of negative 1 plus 3 times n the summation from n equals 1 to 8 of 1 plus 3 times n the summation from n equals 1 to 8 of 4 plus 3 times n

" the summation from n equals 1 to 8 of 1 plus 3 times n " ⇒ 3rd answer

Step-by-step explanation:

The sequence is : 4 , 7 , 10 , ........

∵ 7 - 4 = 3

∵ 10 - 7 = 3

∴ The sequence is an arithmetic sequence, where the first term is 4

and the constant difference is 3

∵ The rule of the arithmetic sequence is ,

where is the first term, d is the constant difference and

n is the position of the term in the sequence

∵

∵ d = 3

∴

∴

∴

The segma notation is:

∑ (1 + 3n)

It means " the summation from n equals 1 to 8 of 1 plus 3 times n "

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation: