Question

.Evaluate the summation of 2 times negative 2 to the n minus 1 power, from n equals 1 to 7..

Answer 1

\[\sum_{n=1}^{7}2(-2)^n-1\]

Answer 2

@am!rah

Answer 3

Its supposed to be to the power of N-1.

Answer 4

i got 84.

Answer 5

Can you help me with another?

Answer 6

OO, Okay xD Here..

Answer 7

Evaluate

Answer 8

i got 19.95.

Answer 9

Okay ;o One more?

Answer 10

Nah, two more. LOL

Answer 11

Evaluate

Answer 12

Okay c:

Answer 13

Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15.

n an
1 4
2 −12
3 36

Answer 14

−410

−385

385

410 The Choices for the first question

Answer 15

The First, its the Drawing, and the Second is you just have to put it in Sigma Notation, ;o

Answer 16

i cant paste the second answers ;-; it wont let me.

Answer 17

its above the second question xD

Answer 18

Oh Yay ;3 And the second? ;o

Answer 19

Neverind c:i got it :3 Thanks

Answer 20

Nevermind*