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KATRIN_1 [288]
3 years ago
13

If 9:x = x:4, then x is 6. true or false

Mathematics
2 answers:
Sophie [7]3 years ago
7 0
We subsituete

9:6=6:4
treat as fraction
9/6=6/4

9/6=3/3 times 3/2
6/4=2/2 times 3/2

3/2=3/2
this is TRUE
IgorLugansk [536]3 years ago
6 0

Answer:

The answer is true

Step-by-step explanation:

we have

9:x = x:4 -----> rewrite in equivalent form

\frac{9}{x}=\frac{x}{4}\\ \\x^{2}=9*4\\ \\x^{2}=\sqrt{36}\\ \\x=(+/-)6

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what is not clear to me is : what is 6 cm long ? a half-diameter, or the whole diameter ?

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what the graphic is trying to suggest is that we have 4 little right-angled triangles that are also isoceles triangles (their legs are equally long).

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