Question

1. Simplify 3fg(f2g + 5f – 4).
3f2g2 +15fg – 12
3f3g3 + 15f2g – 12
3f3g2 + 15f2g – 12
3f3g2 + 15f2g – 12fg
Tell whether each sequence is arithmetic, geometric, or neither. Find the next three terms of each sequence. Write a rule to describe the sequence.
2. –3, –12, –48, ...
–192; –768; –3,072; geometric; Start with –3 and multiply by 4 repeatedly.
–198; –788; –3,072; arithmetic; Start with 4 and multiply by –3 repeatedly.
–188; –768; –3,058; arithmetic; Start with 4 and multiply by –3 repeatedly.
–194; –788; –3,072; geometric; Start with 3 and multiply by 4 repeated

Answer 1

\[3f^3g^2+15f^2g-12fg\] so the last one

Answer 2

now the sequence...

Answer 3

ok

Answer 4

thank you for helping me:D

Answer 5

sorry, called into a meeting will get back to it in about 1 hr, sorry

Answer 6

its okay

Answer 7

back for a sec :D
Question 2 is the top answer. -192,-168, -3072 and you tell its geometric because the ratio of the a and a+1 is 0.25
i.e.
-3/-12 = 0.25
-12/-48 = 0.25 as well

Answer 8

good luck :D

Answer 9

the last thing it asks for is the rule: this follows the geometric sequence rule

a(n)=a(1)*r^(n-1) so we have a(n) = -3*4^(n-1) is four because the the terms have a fixed ration of (a+1)/a or -12/-3 = 4