First and third, second can still be simplified.
Answer:
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Step-by-step explanation:
The picture below shows the formula for calculating slope
In this example:
y2 = 4
y1 = -4
x2 = 5
x1 = 3
(These are the numbers you substitute into the formula)
Calculations:
4 - (-4) = 8
5 - 3 = 2
8/2 = 4
As you can see, after the values are substituted into the equation & simplified, the slope is equal to 4
Complementary angels add up to 90°
so x+18°=90°
so x=90-18=72°
2.750 + 0.003 + 0.158
= 2.753 + 0.158
<span>= 2.911</span>