Answer:
not a right triangle
Step-by-step explanation:
The Pythagorean Theorem states that If a triangle is a right triangle,
the hypotenuse^2 will equal to shorter^2 + longer^2
hypotenuse = 18, shorter side = 4, longer side = 17
18^2 = 4^2 + 17^2
324 = 16 + 289
324 = 305
That is false, therefore the triangle is not a right triangle
Adding the 2 equations will eliminate x because -4x + 4x = 0
so we get
-14y = 28
y = -2
plug this into the second euqtion:-
4x + 14(-2) = -28
4x - 28 = -28
x = 0
answer is x = 0 , y = -2
Answer:
A) 72cm
Step-by-step explanation:
Hope this helped
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