
Mix Practices on Arithmetic and Geometric Sequence and Serie
Authored by gilbert rongavilla
Mathematics
10th Grade

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40 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the sum of the first ten terms of the sequence 4, -12, 36, -108 . . . ?
59,050
-59,048
-78,732
118,096
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the twelfth term in the sequence 3, -6, 12, . . . ?
-2,048
6,144
-6,144
-531,441
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the sum of the first 50 terms of the series 2 + 17 + 32 + 47 + ...?
1,600
18,235
18,475
19,125
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
For n = 1,2,3 . . .the explicit formula,
an = (-3)n + 4, will produce the sequence:
{1, 13, -23, 85. . .}
{1, -5, -23, -77. . .}
{1, -2, -5, -8...}
{1, 10,-5, 85. . .}
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
149
11,200
5,600
140
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The next two terms of the sequence 8,4,2,1, 1/2 are
1/3 and 1/4
1/4 and 1/8
1/8 and 1/6
1/5 and 1/7
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Find the indicated sum for the geometric series.
S6 for (-4/5) + 8 + (-80) + 800 + ....
S6 = 21,845
S6 = 72,000
S6 = 72,727.2
S6 = -128,840.8
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