First find the slope:
Y2-Y1/X2-X1
=-4/5
Then plug in 1 y coordinate and x coordinate to the equation:
Y=mx+b
Y=-4/5x +b
Y=-4/5x-17/5
ANSWER
The sum of m∠DEA and m∠AEB is 180°.
Reason: The sum of angles on a straight line is always 180°.

Group like terms to get,

Simplify, and get,

Divide both sides by 10 to get,

We substitute this value to get the required angles.




Answer:
1 MPH = 1.61 KMHR
Step-by-step explanation:
For an approximate result, multiply the speed value by 1.609
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➷ As the two lengths are a, this means it is an isosceles triangle.
The two unknown angles would be equal so we can calculate them:
(angles in a triangle equal 180 degrees)
(180 - 90) / 2 = 45
Now we can use the sine rule to calculate the length a
(6 / sin(90)) x sin(45) = a
a = 4.242640687
To one decimal place, your answer would be:
a = 4.2mm
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