Understanding and applying geometric series

Find the sum of the first 10 terms of geometric sequences -240, 48, -9.6, 1.92,...

• -100

• 100

• 200

• -200

Evaluate.

• -239,945

• -293,495

• -299,354

• -329,945

Evaluate the geometric series below:
-4 - 8 - 16 - 32...,  S₆

• -253
• -252
• 4
• -235

• 6

• 7

• 8

• 5

 $Evaluate:\ \sum_{j=-2}^2\left(n^{n+1}\right)$  

•  $\frac{17}{2}$  

•  $\frac{19}{4}$  

•  $\frac{25}{4}$  

•  $\frac{19}{2}$  

Determine the sum of the series written in Sigma Notation. 

• -1
• 255
• 295
• 350

Find the sum of the geometric sequence if a₁ = 162, r = 1/3, and n = 7.

• 1.5

• 242.89

• 231.38

• 262.71

Add the terma of the geometric sequence: 7, 21, 63, 189, 567, 1701, 5103.

• 7000

• 6751

• 7651

• 6000

Find the sum of the first 6 terms of the sequence:

a = 100 (1/2)^n-1

• 100000

• 1575/8

• 300

• 250

Evaluate the geometric series below:
-2 - 10 - 50 - 250..., S6

• -7812
• -9678
• -8686
• -9932