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bangchan
07.06.2021 •
Mathematics
The diagram below shows a light ray striking Medium A and Medium B at the same angle.
A rectangle labeled Medium A is drawn on the left. A ray of light travels through air and strikes the surface of medium A making an angle of 50 degrees with the vertical. The light ray bends towards the vertical as it travels through Medium A and makes an angle of about 15 degrees with the vertical. A rectangle labeled Medium B is drawn on the right. A ray of light travels through air and strikes the surface of medium B making an angle of 50 degrees with the vertical. The light ray bends towards the vertical as it travels through Medium B and makes an angle of about 25 degrees with the vertical.
Which statement is correct?
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Ответ:
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Ответ:
-10x=-7x+6
*Combine like terms*
2) add 7x to both sides
-3x=6
*isolate x: divide by -3*
3) x=-2