contestada

Help Me Out For A Brainly (please be accurate )
The value of the 8th term is 78. The sequence is increasing by 10 at each step.

Explicit: an=10n−2
Recursive: an=an−1+10
Find the 20th term.

Question 4 options:

242


208


230


198

Respuesta :

Jets200

Answer:

198

Step-by-step explanation:

So what we can do here is called process of elimination. We know it cannot be anything that does not end in 8 (always adding 10), so it can't be 242 or 230. Next, we can just list the terms :

78,88,98,108,118,128,138,148,158,168,178,188,198

198 is 12th (20-8), so it is our answer

Otras preguntas