R θ is the length = 7.5 cm
R^2 θ/2 is the area = 37.5 (cm)^2
Therefore
R = 2* 37.5 / 7.5 = 10 cm
First you need to 48 into 28 and you add 28+26=54
then sub 54-2=52 then 52- -1=-51
so its -51
Using the point slope form y - y1 = m(x-x1)
m is the slope, because the lines are parallel the slope is identical, so m = -2.
Replace x1 and y1 with the given point and then solve for y:
y - 1 = -2(x-4)
Simplify:
y - 1 = -2x + 8
Add 1 to both sides:
y = -2x +9
X = 2
y = -9
16 - negative 18 = -2
