Answer:
Step-by-step explanation:
The geometric mean relations for this geometry tell you the length of each segment (x or y) is the root of the product of the hypotenuse segments it touches.
x = √(9×5) = (√9)(√5) = 3√5
y = √(9×(9+5)) = (√9)(√14) = 3√14
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<em>Additional comment</em>
The geometric mean of 'a' and 'b' is √(ab).
The geometric mean relations derive from the fact that the three triangles in this geometry are similar. That means corresponding sides are proportional.
Segment x is both a long side (of the smallest triangle) and a short side (of the medium-size triangle). Then it will be involved in proportions involving the relationship of the long side and the short side of the triangles it is part of:
long side/short side = x/5 = 9/x
x² = 5·9
x = √(9×5) . . . . as above
In like fashion, y is both a long side and a hypotenuse, so we have ...
long side/hypotenuse = y/(9+5) = 9/y
y² = (9+5)(9)
y = √(9×14) . . . . . as above
The same thing holds true on the other side of the triangle. The unmarked segment is both a short side and a hypotenuse, so its measure will be the geometric mean of 14 and 5, the hypotenuse and its short segment.
Answer:
Step-by-step explanation:
c
Answer:
Vectors are not the same as lengths.
Step-by-step explanation:
1. The error is that Vector AB + Vector BC = Vector AC
2. The same thing relates to the second analyses(Vector AD is equal Vector DC)
3. The third is all right.
Answer: =4(b+3/8)^2 -9/16
A parallelogram<span> is a four-sided figure with two sets of parallel sides. This is </span>always true<span>. </span>Squares<span> are quadrilaterals with 4 congruent sides and 4 right angles, and they also have two sets of parallel sides. </span>Parallelograms<span> are quadrilaterals with two sets of parallel sides.</span>