Which sequences are geometric? check all that apply.

–2.7, –9, –30, –100,

–1, 2.5, –6.25, 15.625,

9.1, 9.2, 9.3, 9.4,

8, 0.8, 0.08, 0.008,

4, –4, –12, –20,

The correct answers are:

–1, 2.5, –6.25, 15.625, ... ; and 8, 0.8, 0.08, 0.008, ...

Explanation:

A geometric sequence is one in which every term is found by multiplying the previous term by a constant.

In the sequence -1, 2.5, -6.25, 15.625, ..., each term is found by multiplying the previous term by -2.5.

In the sequence 8, 0.8, 0.08, 0.008, ..., each term is found by multiplying the previous term by 0.1.

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer