Answer:
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Answer:
Θ = 46°
Step-by-step explanation:
the angle between a tangent and a radius at the point of contact is 90° , so
∠ ABO = 90°
since OB = OD ( radii of circle ) then Δ BOD is isosceles and
∠ OBD = ∠ ODB = 22°
the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ AOB is an exterior angle of the triangle , then
∠ AOB = 22° + 22° = 44°
the sum of the 3 angles in Δ AOB = 180° , then
Θ + 44° + 90° = 180°
Θ + 134° = 180° ( subtract 134° from both sides )
Θ = 46°
Answer:
3
Step-by-step explanation:
I got the second one done, I️ just need to know the formula for recursive and explicit formula
slope (m) = (y₂ - y₁)/(x₂ - x₁)
-2/1 = (a - 1)/(5 -(-5))
-2 = (a - 1)/10
-20 = a - 1
-19 = a
Answer: a = -19
