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=9n-2

an=13-2n

an=13n-2

The correct equation to find the nth term in the sequence an is: an=13-2n.

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=-17n-3

an= -17-3n

an= -20-3n

an= -20n-3

The correct equation to find the nth term in the sequence can be written as follows:

an = -20 - 3(n-1)

Therefore, the correct equation that can be used to find the nth term of the sequence is: an = -20 - 3(n-1)

so a b c or d ?

The correct equation that can be used to find the nth term of the sequence -20, -23, -26, -29,... is:

an = -20 - 3(n-1)

Therefore, based on the given options, the appropriate equation would be:

c) an = -20 - 3n

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

To find the value of a45 in the given sequence, we can use the formula an = a(n-1) - 0.5.

Given that a1 = 16, we can use the formula to find the subsequent terms in the sequence.

a2 = a1 - 0.5 = 16 - 0.5 = 15.5
a3 = a2 - 0.5 = 15.5 - 0.5 = 15
a4 = a3 - 0.5 = 15 - 0.5 = 14.5

Continuing this pattern, we can find the value of a45 by substituting n = 45 in the formula:

a45 = a44 - 0.5
a44 = a43 - 0.5
...
a3 = a2 - 0.5
a2 = a1 - 0.5

Therefore, by repeatedly applying the formula, we can find the value of a45.

what is the value

To find the value of a45 in the sequence, we can use the formula an = a(n-1) - 0.5.

Given a1 = 16, we can calculate the subsequent terms as follows:

a2 = a1 - 0.5 = 16 - 0.5 = 15.5
a3 = a2 - 0.5 = 15.5 - 0.5 = 15
a4 = a3 - 0.5 = 15 - 0.5 = 14.5

Continuing this pattern, we can find the value of a45:

a45 = a44 - 0.5
= 14.5 - 0.5
= 14

Therefore, the value of a45 in the given sequence is 14.