Geometric Series

• 8

• 8/5

• 10

• Does not exist

Evaluate the geometric series described.
 $3+15+75+375...,\ \ \ \ n=6$  

• 11,718

• 10,603

• 9,769

•  $-\frac{3}{4}$  

Tags

CCSS.HSA.SSE.B.4

 $a_1=-2,\ \ \ r=-2,\ \ \ S_n=22$  Determine the number of terms n in the series

• 6

• 7

• 8

• 5

Tags

CCSS.HSA.SSE.B.4

Evaluate  $\sum_{k\ =\ 1}^7\left(-2\right)^{k\ -1\ }$  

• 44

•  $\frac{1}{3}$  

• 43

• 49

Tags

CCSS.HSA.SSE.B.4

 $a_1=3,\ \ \ r=5,\ \ \ n=7$  Evaluate

•  $58,593$  

•  $52,120$  

•  $41,923$  

•  $54,646$  

Tags

CCSS.HSA.SSE.B.4

 $Evaluate\ \ \ \ \ \sum_{i\ =1}^9-3\cdot3^{\ \left(i-1\right)}$  

• -28,056

• -29,523

• -31,724

• -30,628

Tags

CCSS.HSA.SSE.B.4

 $4,\ 24,\ 144,\ 864,\ ...$  Find the next 3 terms

•  $1024,\ \ 4096,\ \ 16384$  

•  $256,\ 1024,\ 4096$  

•  $256,\ -1024,\ 4096$  

•  $5184,\ 31104,\ 196624$  

Tags

CCSS.HSF.BF.A.2

 $1,\ -2,\ 4,\ -8,\ ...\ \ Find\ a_{11}$  

•  $-512$  

•  $-1024$  

•  $1024$  

•  $512$  

Tags

CCSS.HSF.BF.A.2

 $Find\ a_9\ \ \ \ \$  
 $4,\ 16,\ 64,\ 256$  

•  $262,144$  

•  $1,048,576$  

•  $5,859,375$  

•  $983,040$  

Tags

CCSS.HSF.BF.A.2

 $2,\ 10,\ 50,\ 250,\ ...$  Find the explicit formula

•  $a_n=10\cdot4^{\left(n-1\right)}$  

•  $a_n=2\cdot5^{\left(n-1\right)}$  

•  $a_n=10\cdot5^{\left(n-1\right)}$  

•  $a_n=5\cdot2^{\left(n-1\right)}$  

Tags

CCSS.HSF.LE.A.2