7.5 × 10-4
That's the scientific notation answer ^
<h2>
Answer:</h2>
This is easy. All you need to do is set up a <u><em>proportional relationship</em></u>.
A proportional relationship uses variables to show similarities, in this case, in triangles.

<u><em>x</em></u> represents the missing side.
Answer:
Step-by-step explanation:
X=5/4z - 7/4
The first answer in the choices