Pretest

Question 1

What is the sum of the geometric series? the sum from n is equal to 1 to 4 of negative 2

Revolt · Accepted Answer

B: 40

Question 2

What is the sum of the first six terms of the geometric series? 2 minus 6 plus 18 minus 54 plus dot dot dot

Revolt · Accepted Answer

C: negative 364

Question 3

What is the sum of the infinite geometric series? the sum from n is equal to 1 to infinity of negative 144

Revolt · Accepted Answer

A: negative 144; C: negative 288

Question 4

The formula for the sum of an infinite geometric series, cap s is equal to the fraction with numerator A sub 1 and denominator 1 minus r , may be used to convert line segment 0 point 2 3 to a fraction. What are the values of A sub 1 and r ?

Revolt · Accepted Answer

C: A sub 1 is equal to 23 over 100 comma r is equal to 1 over 100

Question 5

What are the values of A sub 1 and r of the geometric series? 2 minus 2 plus 2 minus 2 plus 2

Revolt · Accepted Answer

D: A sub 1 is equal to 2  and  r is equal to negative 1

Question 6

What are the values of A sub 1 and r of the geometric series? 1 plus 3 plus 9 plus 27 plus 81

Revolt · Accepted Answer

A: A sub 1 is equal to 1  and  r is equal to 3

Question 7

Which equation represents the partial sum of the geometric series? the sum from n is equal to 1 to 4 of 125

Revolt · Accepted Answer

D: 1 plus 1 fifth plus 1 over 25 plus 1 over 125

Question 8

What is the value of r of the geometric series? the sum from n is equal to 1 to 3 of 1 point 3

Revolt · Accepted Answer

A: 1 point 3

Question 9

What is the value of A sub 1 of the geometric series? the sum from n is equal to 1 to infinity of 12

Revolt · Accepted Answer

C: 12

Question 10

What is the sum of the infinite geometric series? negative 3 minus 3 halves minus 3 fourths minus 3 eighths minus 3 over 16 minus dot dot dot

Revolt · Accepted Answer

A: negative 6

Pretest Answers

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