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Darya [45]
3 years ago
5

Please help 100 points. Picture in the desc

Mathematics
2 answers:
zvonat [6]3 years ago
8 0
Given: (x1 , y1)= (2,2) and (X2,y2)= (-1,-2)

then using slope formula:
∆y/∆x= (y2-y1 / x2-x1)= (-2-2 / -1-2)= (-4/-3)= (4/3)

hence 4/3 is the slope of the line
DENIUS [597]3 years ago
4 0

rise over run

(-1,2) (2,2)

2-2/2-(-1)

2-2/2+1 equals 0/3

or alternatively

2-2/-1 - 2 which would be -0/3.

Whichever point is the first helps determine this alot

rise/run=rise over run= y2 - y1/ x2 - x1

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PHYSICS As a ray of light meets a mirror, the light
Lady bird [3.3K]
<h3>Answer:  37 degrees</h3>

========================================================

Explanation:

The angle of incidence is equal to the angle of reflection. The angle of light coming in is the same as the angle of light bouncing out. Each angle is made with the dashed line as the diagram shows.

So angle RMI = 106 is bisected, i.e. divided in half, to get

  • Angle RMN = 53
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since 106/2 = 53

Then notice that the horizontal dashed line is perpendicular to the vertical mirror. This means angle NMJ is a 90 degree angle and,

angle RMJ = (angle NMJ) - (angle RMN)

angle RMJ = 90 - 53

angle RMJ = 37 degrees

----------

In short: divide 106 in half to get 53, then subtract it from 90

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2 years ago
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Answer:

Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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7 0
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