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Let’s check out your problem:
Type the missing numbers in this sequence:
\newline
42
42
42
, _____, _____,
54
54
54
,
58
58
58
,
62
62
62
,
66
66
66
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Math Problems
Grade 8
Arithmetic sequences
Full solution
Q.
Type the missing numbers in this sequence:
\newline
42
42
42
, _____, _____,
54
54
54
,
58
58
58
,
62
62
62
,
66
66
66
Find Pattern:
Look at the sequence to find the pattern; the numbers are increasing by the same amount each time.
Calculate Increment:
Start from
66
66
66
and go backwards to find the increment between the numbers.
66
−
62
=
4
66 - 62 = 4
66
−
62
=
4
.
Find Missing Numbers:
Use the increment to find the missing numbers.
54
+
4
=
58
54 + 4 = 58
54
+
4
=
58
, so the number before
54
54
54
must be
54
−
4
=
50
54 - 4 = 50
54
−
4
=
50
.
Find Second Missing Number:
Now find the second missing number.
50
−
4
=
46
50 - 4 = 46
50
−
4
=
46
, so the number before
50
50
50
is
46
46
46
.
Verify Sequence:
Check the sequence to make sure it's correct:
42
,
46
,
50
,
54
,
58
,
62
,
66
42, 46, 50, 54, 58, 62, 66
42
,
46
,
50
,
54
,
58
,
62
,
66
.
More problems from Arithmetic sequences
Question
Find the sum of the finite arithmetic series.
∑
n
=
1
10
(
7
n
+
4
)
\sum_{n=1}^{10} (7n+4)
∑
n
=
1
10
(
7
n
+
4
)
\newline
______
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Posted 1 year ago
Question
Type the missing number in this sequence: `55,\59,\63,\text{_____},\71,\75,\79`
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Type the missing number in this sequence: `2, 4 8`, ______,`32`
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Posted 9 months ago
Question
What kind of sequence is this?
2
,
10
,
50
,
250
,
…
2, 10, 50, 250, \ldots
2
,
10
,
50
,
250
,
…
Choices:Choices:
\newline
[A]arithmetic
\text{[A]arithmetic}
[A]arithmetic
\newline
[B]geometric
\text{[B]geometric}
[B]geometric
\newline
[C]both
\text{[C]both}
[C]both
\newline
[D]neither
\text{[D]neither}
[D]neither
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Posted 9 months ago
Question
What is the missing number in this pattern?
1
,
4
,
9
,
16
,
25
,
36
,
49
,
64
,
81
,
_
_
_
_
1, 4, 9, 16, 25, 36, 49, 64, 81, \_\_\_\_
1
,
4
,
9
,
16
,
25
,
36
,
49
,
64
,
81
,
____
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Posted 1 year ago
Question
Classify the series.
∑
n
=
0
12
(
n
+
2
)
3
\sum_{n = 0}^{12} (n + 2)^3
∑
n
=
0
12
(
n
+
2
)
3
\newline
Choices:
\newline
[A]arithmetic
\text{[A]arithmetic}
[A]arithmetic
\newline
[B]geometric
\text{[B]geometric}
[B]geometric
\newline
[C]both
\text{[C]both}
[C]both
\newline
[D]neither
\text{[D]neither}
[D]neither
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Posted 9 months ago
Question
Find the first three partial sums of the series.
\newline
1
+
6
+
11
+
16
+
21
+
26
+
⋯
1 + 6 + 11 + 16 + 21 + 26 + \cdots
1
+
6
+
11
+
16
+
21
+
26
+
⋯
\newline
Write your answers as integers or fractions in simplest form.
\newline
S
1
=
S_1 =
S
1
=
____
\newline
S
2
=
S_2 =
S
2
=
____
\newline
S
3
=
S_3 =
S
3
=
____
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Posted 1 year ago
Question
Find the third partial sum of the series.
\newline
3
+
9
+
15
+
21
+
27
+
33
+
⋯
3 + 9 + 15 + 21 + 27 + 33 + \cdots
3
+
9
+
15
+
21
+
27
+
33
+
⋯
\newline
Write your answer as an integer or a fraction in simplest form.
\newline
S
3
=
S_3 =
S
3
=
____
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Posted 1 year ago
Question
Find the first three partial sums of the series.
\newline
1
+
7
+
13
+
19
+
25
+
31
+
⋯
1 + 7 + 13 + 19 + 25 + 31 + \cdots
1
+
7
+
13
+
19
+
25
+
31
+
⋯
\newline
Write your answers as integers or fractions in simplest form.
\newline
S
1
=
S_1 =
S
1
=
____
\newline
S
2
=
S_2 =
S
2
=
____
\newline
S
3
=
S_3 =
S
3
=
____
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Posted 1 year ago
Question
Does the infinite geometric series converge or diverge?
\newline
1
+
3
4
+
9
16
+
27
64
+
⋯
1 + \frac{3}{4} + \frac{9}{16} + \frac{27}{64} + \cdots
1
+
4
3
+
16
9
+
64
27
+
⋯
\newline
Choices:
\newline
[A]converge
\text{[A]converge}
[A]converge
\newline
[B]diverge
\text{[B]diverge}
[B]diverge
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Posted 9 months ago
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