69.9
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Answer:
The point on the plane (4, 2)
That is x = 4 and y = 2
Step-by-step explanation:
Look for the point where the two lines given by the system of linear equations intersect. That point is (4, 2)
x = 4 and y = 2
Let the other 2 unknown sides be y n z
look at the two smaller triangles inside
y^2 = 12^2 + x^2 and
z^2 = 21^2 + x^2
from the biggest triangle
(12+21)^2 = y^2 + z^2
substituting
(12+21)^2 = (12^2 + x^2) + (21^2 + x^2)
33^2 = 12^2 + 21^2 + 2x^2
2x^2 = (33^2 - 12^2 - 21^2)/2 = 504
x^2 = 252
x = 15.9
ans is B
Step-by-step explanation:
I think that question is not correct
Answer:
<h2 /><h2>15</h2>
Step-by-step explanation:
I hope this helps