Answer:
5:7
Step-by-step explanation:
From the given graph it is clear that
The total number of circles = 12
The total number of patterned circles = 5
The total number of plain circles = 7
We need to find the ratio of patterned circles to plain circles.
Substitute patterned circles = 5 and plain circles = 7 in the above formula.
Therefore, the ratio of patterned circles to plain circles is 5:7.
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.
You just need to use your test-taking skill to eliminate the wrong answers here.
There is no such thing as a "Congruent Angles Postulate," so the last two choices can be eliminated.
The AA Similarity Postulate refers to triangles, not angles, so the second choice can be eliminated.
That only leaves the (correct) first choice.
