The ratio of the smaller to the larger is 3:9. That can also be written as a fraction,

, which of course can be reduced to

or 1:3. That's your ratio.
This answer is already to the nearest tenth. The 5 is in the tenth's place.
Answer:
368m
Step-by-step explanation:
16 x 20 = 320
8 x 12 x 1/2 = 48
Add them together and get 368
A and D
To get x on one side you have to, in this case, add 3 to both sides. This is the addition property of equality
The expansion of a perfect square is

In words, the square of a sum of two terms is the sum of the squares of the two terms (
and
), plus twice the product of the two terms (
)
So, when determining if you have a perfect square trinomial, you should have two perfect squares. Note that they don't have to be the first and third term, since you can rearrange terms as you prefer.