Hi!
The first number line is equals to
The second number line is equals to
The third number line is equals to
The fourth number line is equals to 2
The fifth number line is equals to 0
The sixth number line is
The answer is; second, fourth and fifth number lines.
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<em>I hope, I could help.</em>
<em>Wish Good Lessons! ^-^</em>
Answer:
<em>y=-6</em>
Step-by-step explanation:
<em>Geometric Sequences</em>
Any given sequence is said to be geometric if each term can be obtained as the previous term
by a constant value called the common ratio.
or equivalently
Looking closely at the sequence 2, y, 18,-54, 162 we can try to find out if it's a geometric sequence or not. We compute the possible common ratios
and we see they both result -3. If we use r=-3 and try to find the second term (y), then
y=2*(-3)=-6
Now we compute the third term: (-6)(-3)=18
Since we got the third term as given in the original sequence.
So y=-6