Answer:28
Step-by-step explanation:
4a when a=7
So..
4(7)=28
Hope that helps :)
Given:
The three vertices of the parallelogram are (-3,9), (0,-3), (6,-6).
To find:
The fourth vertex of the parallelogram.
Solution:
Consider the three vertices of the parallelogram are A(-3,9), B(0,-3), C(6,-6).
Let D(a,b) be the fourth vertex.
Midpoint formula:

We know that the diagonals of a parallelogram bisect each other. So, the midpoints of both diagonals are same.
Midpoint of AC = Midpoint BD


On comparing both sides, we get


And,




Therefore, the fourth vertex of the parallelogram is (3,6).
Answer:
32 m^2
Step-by-step explanation:
Quite easy. The altitude of the triangle is 8m. The base of the triangle is 2 + 6. The base is 8 meters and the height of the triangle is 8 meters. The area ofa triangle is base * height divded by 2.
(8 * 8)/2 = 32 sqaure meters
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7/12 of the mixture should be blue......but, in her mixture, 9/15 = 3/5 of the mixture is blue.....
And 7/12 is not equal to 3/5......so....the shade is not correct