I'm pretty sure what you have up there is correct as a geometric sequence is any sequence involving multiplication. The top one might be geometric, too though.
Answer:
Idk about the others but the first two are 1.) 156 and 2.) 116
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
Plug in one to the equation to get (1)^3 - 2(1)^2, 1 to the power of anything is 1 so it boils down to 1-2, which is -1
1.C
2.A
3.D
(A,B,C,D means the first, second, third, fourth answer respectively)
Answer:
I think the answer is -9?
Step-by-step explanation:
5
∑ -2k + 5
k=3
= [-2(3) + 5] + [-2(4) + 5] + [-2(5) + 5]
= -1 + -3 + -5
= -9