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Geometric Series — Quiz Answers

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

A
A sub 1 is equal to negative 2 and r is equal to 2
B
A sub 1 is equal to 2 and r is equal to negative 2
C
A sub 1 is equal to negative 1 and r is equal to 2
D
A sub 1 is equal to 2 and r is equal to negative 1
5

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 ?

A
A sub 1 is equal to 23 tenths comma r is equal to 1 tenth
B
A sub 1 is equal to 23 over 100 comma r is equal to 100
C
A sub 1 is equal to 23 comma r is equal to 1 over 100
D
A sub 1 is equal to 23 over 100 comma r is equal to 1 over 100
7

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

A
A sub 1 is equal to 1 and r is equal to 1 third
B
A sub 1 is equal to 1 and r is equal to 3
C
A sub 1 is equal to 3 and r is equal to 1
D
A sub 1 is equal to 1 third and r is equal to 1
10

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

A
1 plus 1 fifth plus 1 over 25 plus 1 over 125
B
125 plus 25 plus 5 plus 1
C
25 plus 5 plus 1 plus 1 fifth
D
1 over 125 plus 1 fifth plus 5 plus 125

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