Answer:
see explanation
Step-by-step explanation:
The n th term of a geometric progression is
•
= a₁ ![r^{n-1}](https://tex.z-dn.net/?f=r%5E%7Bn-1%7D)
where a₁ is the first term and r the common ratio
given a₄ = 24, then
a₁
= 24 → (1)
Given a₈ =
, then
a₁
=
→ (2)
Divide (2) by (1)
=
= ![\frac{1}{81}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B81%7D)
Hence r =
= ![\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D)
Substitute this value into (1)
a₁ × (
)³ = 24
a₁ ×
= 24, hence
a₁ = 24 × 27 = 648
Hi there,
I think the answer is
14
Have a nice day
Answer:
25
Step-by-step explanation:
Answer:
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Step-by-step explanation:
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Hello! In slope-intercept form, y=mx+b. M is the slope and b is the y-intercept. The rate of change and slope are interchangeable, therefore, they both create a line through the slope-intercept form.
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