Can someone please answer my last question
1 answer:
You might be interested in
Given:
second term = 18
fifth term = 144
The nth term of a geometric sequence is:
Hence, we have:
Divide the expression for the fifth term by the expression for the second term:
Substituting the value of r into any of the expression:
Hence, the explicit rule for the sequence is:
Answer:
b
Step-by-step explanation:
Evaluate using the definition
n =
where n ! = n(n - 1)(n - 2)(n - 3)..... × 3 × 2 × 1
Given
9
=
=
=
Cancel 6.5.4.3.2.1 on numerator and denominator, leaving
=
=
= 84 → b