Sum of Finite Series

Is this sum finite or infinite?

• Finite, because there are only 11 terms to add up.

• Infinite, because there are an infinite number of terms to add up.

This summation is the same as which series?

• 1 + 2 + 3 + 4 + 5 + 6

• (1 - 2) + (2 - 2) + (3 - 2) + (4 - 2) + (5 - 2) + (6 - 2)

• (1 - 2) + (6 - 2)

• (1 - 2) + (2 - 2) + (3 - 2) + (4 - 2)

Calculate the sum.

• 66

• 14

• 704

• 114

Which series would you use this formula for?

• Arithmetic Series

• FINITE Geometric Series

• INFINITE Geometric Series

• Any Series

What is the sum of the first ten terms of the sequence 4, -12, 36, -144 . . . ?

• 59,050

• -59,048

• -78,732

• 118,096

Find the sum of the geometric series.

2 + 12 + 72 + 432

• 432

• 518

• 211

• 438

Find the sum of geometric series.

−2 + 6 − 18 + 54 −162

• -118

• 5

• -122

• 201

An Audio-Visual Room has 12 rows of seat. There are 20 seats on the first row, 23 on the second row, 26 on the third row and the pattern goes on and on. How many seats are there inside the Audio Visual Room?

Find the sum 
24+48+72+...+480

• 5280

• 9576

• 10080

• 5040

Find the sum of the finite arithmetic series

7 + 14 + 21 + … + 105

• 840

• 620

• 245

• 1283