5. (2,-6) (-2,6)
6. (4,-1) (-4,1)
<span>the sum of squares of two smaller sides equals the square of the largest side, it's right triangle
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9^2 + 12^2 = 25^2
81 + 144 = 225
225 = 225
answer is <span>B- 9,12,15</span>
It is a 5% discount 400 x .05 = 20
400 - 20 = 380
The answer is :A. x=3 or x=-7
