Hi!
We can set up a proportion to solve this

Cross multiply
3 x 16 = 48
48/12 = 4
The answer is 4
Hope this helps! :)
Answer:
-75 x^4 + 85 x^5 - 32 x^6 + 4 x^7
Step-by-step explanation:

Expand and get
-75 x^4 + 85 x^5 - 32 x^6 + 4 x^7
The dimensions of the rectangular portion of the window should be 4 by 4.
To maximize area, we make the dimensions as close to congruent as possible. Since there will be 3 sides on the rectangular portion with a frame around them, we divide 12 by 3:
12/3 = 4
This means it should be 4 by 4.
Answer:

Step-by-step explanation:

We have the geometric sequence: 1, -2, 4, -8, ...
Find the common ratio:


substitute:

Substitute

to

