Question

1

1 point



Question at position 1
Which equation can be used to find the nth term of the sequence -20, -23, -26,-29,...


Which equation can be used to find the nth term of the sequence -20, -23, -26,-29,...


an= -20n-3


an= -20-3n


an= -17-3n


an=-17n-3

Question at position 2
2

1 point



Question at position 2
The first four terms of a sequence are -10, 20, -40, 80,... Fill in the blank to complete the formula that could be used to find the nth term in this sequence.



Assume "an" is an.

an=-10(
Question Blank 1 of 1
type your answer...
)^(n-1)
Question at position 3
3

1 point



Question at position 3
A sequence can be generated by using an=a(n-1)-0.5. If a1=16, what is the value of a45?

A sequence can be generated by using an=a(n-1)-0.5. If a1=16, what is the value of a45?

Type your answer...
Question at position 4
4

1 point



Question at position 4


In a sequence of numbers, a2=9, a3=7, and a4=5. Based on this information, which equation can be used to find the nth term in the sequence an?




In a sequence of numbers, a2=9, a3=7, and a4=5. Based on this information, which equation can be used to find the nth term in the sequence an?


an=9-2n


an=13n-2


an=9n-2


an=13-2n

Question at position 5
5

1 point



Question at position 5


In a sequence of numbers a1= 4, a2= 16, a3= 64. What formula could be used to find the nth term in the sequence?




In a sequence of numbers a1= 4, a2= 16, a3= 64. What formula could be used to find the nth term in the sequence?


an= ¼(n-1)


an= 4(n-1)


an= 1-4n


an= 4*4n-1

Question at position 6
6

1 point



Question at position 6
A sequence can be generated by using an=a(n-1)+4. If a1=2, what is the value of a20?

answer all questions

Answer 1

what are the answers to 3 4 and 6

Answer 2

To find the nth term of the sequence -20, -23, -26, -29,... we use the equation an = -20 - 3(n-1), so the correct answer is an = -20 - 3n.

For the sequence -10, 20, -40, 80,... the formula to find the nth term is an = -10 * (-2)^(n-1).

If a sequence is generated by an = a(n-1) - 0.5 and a1 = 16, to find a45 we need to keep applying the formula.

For a sequence where a2=9, a3=7, and a4=5, the equation to find the nth term is an = 11 - 2(n-1).

For the sequence a1= 4, a2= 16, a3= 64, the formula to find the nth term is an = 4 * 4^(n-1).

If a sequence is generated by an = a(n-1) + 4 and a1 = 2, to find a20 we need to keep applying the formula.

Answer 3

For question 3, with the sequence formula an = a(n-1) - 0.5 and a1 = 16, we can find a45 using the formula.

a45 = a44 - 0.5
a44 = a43 - 0.5
...
a2 = a1 - 0.5

Since a1 = 16, we can calculate a2, a3, a4, ..., a45 step by step until we reach a45.

For question 4, with the given values a2=9, a3=7, and a4=5, we can see the pattern that the nth term decreases by 2 each time. The formula would be:
an = 11 - 2(n-1)

And for question 6, if a sequence is generated by an = a(n-1) + 4 and a1 = 2, to find a20 we need to keep applying the formula.