9514 1404 393
Answer:
(b) It is one-half the area of a square of side length 4 units.
Step-by-step explanation:
The triangle described can be formed by drawing the diagonal through a square 4 units on a side. Such a diagonal cuts the square cleanly in half, so the area of the triangle is half the area of the square.
Answer:
x=-14
Y=40
Perimeter=(4×14+3)×4=236
Step-by-step explanation:
as long as it's a square then
![3x + 17 = 4x + 3 \\ 4 x - 3x = 3 - 17 \\ x = - 14 \\ \\ any \: angle \: in \: the \: square \: equal \: 90degrees \\ then \\ 5x + 4y = 90 \: \: when \: x = -14 \\ 4y = 5 \times 14 + 90 \\ 4y = 16 \\ y = 40](https://tex.z-dn.net/?f=3x%20%2B%2017%20%3D%204x%20%2B%203%20%5C%5C%204%20x%20%20-%203x%20%3D%203%20-%2017%20%5C%5C%20x%20%3D%20%20-%2014%20%5C%5C%20%20%5C%5C%20any%20%5C%3A%20angle%20%5C%3A%20in%20%5C%3A%20the%20%5C%3A%20square%20%5C%3A%20equal%20%5C%3A%2090degrees%20%5C%5C%20then%20%5C%5C%205x%20%2B%204y%20%3D%2090%20%5C%3A%20%20%5C%3A%20when%20%5C%3A%20x%20%3D%20%20-14%20%5C%5C%204y%20%3D%205%20%5Ctimes%2014%20%2B%2090%20%5C%5C%204y%20%3D%2016%20%5C%5C%20y%20%3D%2040)
![perimeter =( 4 \times 14 + 3)\times 4 = 236](https://tex.z-dn.net/?f=perimeter%20%3D%28%204%20%5Ctimes%2014%20%2B%203%29%5Ctimes%204%20%3D%20236)
Answer:
before the sale, each poster was $8.49
Step-by-step explanation:
27.36 divided by 4 = 6.84 + 1.65 = 849