Question: SHow clear answers please Rewrite the sum using sigma notation. + 1 . 2 2. 3 3. 4 4. 5 Which summation represents the sum?

SHow clear answers please

SHow clear answers please Rewrite the sum using sigma notation. + 1. 2 2. 3 3. 4 4. 5 Which summation represents thesum? - M 8 O A . k(k + 1) k =1 4 O B. E k(k + 1) K = 1 OC. k(k + 1) k = 0 OO OD. C - k

Rewrite the sum using sigma notation. + 1 . 2 2. 3 3. 4 4. 5 Which summation represents the sum? - M 8 O A . k(k + 1) k = 1 4 O B. E k(k + 1) K = 1 O C. k(k + 1) k = 0 OO OD. C - k 1 K = 1Find n when a, = - 8, d = -2, and an = - 16.A theater has 25 rows of seats. The first row has 22 seats, the second row has 26 seats, the third row has 30 seats, and so on. How many seats are in the theater? The theater has seats.Determine the nth term of the geometric sequence. 1, 3, 9, 27, The nth term is D. (Simplify your answer.) Find the sum, if it exists. 250 +200 +160 + Select the correct choice below and ll in any answer boxes in your choice. 0 A- The sum is D. (Simplify your answer. Type an integer or a decimal.) O B. The sum does not exist

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