Divide by -2: 3x-5 < -17
Add 5: 3x < -12
Divide by 3: x < -4 (answer)
Given:
are in geometric sequences.
To find:
The value of x.
Solution:
If a, b, c are in geometric sequences, then

...(i)
It is given that
are in geometric sequences. By using (i), we get




On further simplification, we get



Therefore, the value of x is 0.
Converting -4 to polar form gives
.
Then the 4th roots of -4 would be the numbers

where <em>k</em> is taken from {0, 1, 2, 3}.
So we have




The answer is 5
Explanation:
The 9 by 15 picture is similar to the 3 by x picture, meaning its the same shape but not the same size.
Since we know what the width is for the first picture we have to get the width of the second picture to equal the same width without changing the shape.
To do that you divide BOTH 9 and 15 by 3
And you get 3 and 5.
Hope this help you understand better.