the first term of an arithmetic sequence is 8, the last term id 56 and the sum is 416. find the number of terms

13

Step-by-step explanation:

first term (a) = 8

last term ( ) = 56

sum (S) = 416

number of terms (n) = ?

                              equation

                              S = n/2 (a+)

                             416 = n/2 (8+56)

                             416 = n/2 (64)

                              416 = 32n

                               n = 416/32 = 13

the  office resources  are the human, physical and financial  resources  which are utilized for performing all the activities in order to achieve the organizational objectives.

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hi there!

question 1 answer: p/q can be terminating when q = 5^m * 2^n

question 2 answer: -1 and -1

question 3 answer: -4

question 4 answer: 5/12

hope this : )