The sequence below is structured according to a term-to-term rule.
What is the first element?
The sequence below is structured according to a term-to-term rule.
What is the first element?
\( \text{?}+\text{?} \)
\( 2+4 \)
\( 3+7 \)
\( 4+10 \)
\( 5+13 \)
Below is a sequence represented by squares. How many squares will there be in the 8th element?
Below is the rule for a sequence written in terms of \( n \):
\( 2n+2 \)
Calculate the value of the 11th element.
Given a series whose first element is 15, each element of the series is less by 2 of its predecessor.
Is the number 1 an element of the series?
A sequence has the following term-to-term rule:
\( \frac{n}{2} \)
What is the the third term?
The sequence below is structured according to a term-to-term rule.
What is the first element?
We start with the right column in the exercises.
Between each number there is a jump of +3:
Etcetera.
Now we move to the left column of the exercises.
Between each number there is a jump of +1:
Now we can figure out which exercise is missing:
The left digit will be:
The right digit will be:
And the missing exercise is:
Below is a sequence represented by squares. How many squares will there be in the 8th element?
It is apparent, that for each successive number, a square is added in length and one in width.
Hence, the rule using the variable n is:
Therefore, the eighth term will be:
Below is the rule for a sequence written in terms of :
Calculate the value of the 11th element.
We calculate by replacing
First we solve the multiplication exercise and then we add 2:
Given a series whose first element is 15, each element of the series is less by 2 of its predecessor.
Is the number 1 an element of the series?
We know that the first term of the series is 15.
From here we can easily write the entire series, until we see if we reach 1.
15, 13, 11, 9, 7, 5, 3, 1
The number 1 is indeed an element of the series!
Yes
A sequence has the following term-to-term rule:
What is the the third term?
The third term in the sequence is the term :
We need to substitute in the position of the term in the sequence:
Now, using our values:
Now we substitute the position of the term in the sequence (3) in place of n. The substitution is shown with an underline in the expression above.
Therefore, the correct answer is answer C.
\( 10n-9 \)
What are the fourth and fifth terms of the sequence above?
In the following series an
Given the series, y represents some term of the series
n represents the position of the term in the series
What are the first five members of the series?
\( a_n=3n+1 \)
In a classroom there are 10 chairs numbered according to the constant property. Complete the series of chairs:
20 , 18
16 , 14
_ , _
8 , 6
4 , 2
Which shape appears in the fifth element of the sequence?
Choose which represents the fourth element of the sequence.
What are the fourth and fifth terms of the sequence above?
The fourth and fifth terms in the sequence are the terms: meaning in the general term formula given:
we need to substitute the position (of the requested term in the sequence):
for - and-
for-
Let's do this for the fourth term:
when we substituted in place of n the position (of the requested term in the sequence): 4, substitution is shown with an underline in the expression above,
Similarly, for the fifth term, we get:
which means that:
Therefore the correct answer is answer A.
31, 41
In the following series an
Given the series, y represents some term of the series
n represents the position of the term in the series
What are the first five members of the series?
In order to determine the first five terms in the sequence simply insert their positions into the given formula as shown below:
We want to calculate the values of the terms:
Let's start with the first term in the sequence,
We need to insert the position of whichever term that we want to find.
In this case we want to find the first term so we'll substitute as shown below:
Proceed to calculate:
When we substituted the position in question in the place of n : the substitution is shown with an underline (as shown above),
Repeat this exact action for all the requested terms in the sequence, meaning for the second through fifth terms:
For the second term we substituted: in to the formula:
For the third term we again substituted: and so on for the rest of the requested terms,
To summarize, we determined that the first five terms:
in the given sequence, are:
Therefore, the correct answer is answer A.
In a classroom there are 10 chairs numbered according to the constant property. Complete the series of chairs:
20 , 18
16 , 14
_ , _
8 , 6
4 , 2
12 , 10
Which shape appears in the fifth element of the sequence?
Choose which represents the fourth element of the sequence.
Which shape will appear in the fifth element of this sequence?
Below is a sequence of exercises.
The sequence adheres to a certain term-to-term rule.
Complete the missing element (?):
\( 6+5 \)
\( 5+4 \)
\( \text{?}+\text{?} \)
\( 3+2 \)
\( 2+1 \)
Below is a sequence represented by squares. How many squares will there be in the 4th element?
Below is a sequence represented by squares. How many squares will there be in the 5 element?
Below is a sequence represented by squares. How many squares will there be in the 6th element?
Which shape will appear in the fifth element of this sequence?
Below is a sequence of exercises.
The sequence adheres to a certain term-to-term rule.
Complete the missing element (?):
Below is a sequence represented by squares. How many squares will there be in the 4th element?
Below is a sequence represented by squares. How many squares will there be in the 5 element?
Below is a sequence represented by squares. How many squares will there be in the 6th element?
36
Below is a sequence represented with squares. How many squares will there be in the 7th element?
Below is the rule for a sequence written in terms of \( n \):
\( 2(n+4) \)
Work out the value of the 9th element in the sequence.
Below is the rule for a sequence in terms of \( n \):
\( 2(2n-2) \)
What is the value of the 7th element in the sequence?
What is the shape of the fourth element?
Below is a sequence of exercises.
The sequence adheres to a certain term-to-term rule. Complete the missing element (?):
\( 18+49 \)
\( 14+37 \)
\( \text{?}+\text{?} \)
\( 6+13 \)
\( 2+1 \)
Below is a sequence represented with squares. How many squares will there be in the 7th element?
Below is the rule for a sequence written in terms of :
Work out the value of the 9th element in the sequence.
Below is the rule for a sequence in terms of :
What is the value of the 7th element in the sequence?
What is the shape of the fourth element?
Below is a sequence of exercises.
The sequence adheres to a certain term-to-term rule. Complete the missing element (?):