DB is a perpendicular bisector of ADC. AC = 2x + 20 BC = 4x-2 Solve for x. Find BC and AC.
1 answer:
You might be interested in
Answer:
∠ BDA = 55° , ∠ BCA = 70°
Step-by-step explanation:
∠ BOA = 360° - 250° = 110° ( angles round a point )
The central angle is twice the angle on the circle, subtended on the same arc
∠ BDA = ∠ BOA =
× 110° = 55°
OBCA is a tangent kite
Opposite angles sum to 180° , then
∠ BCA = 180° - ∠ BOA = 180° - 110° = 70°
Answer:
OPTION C: The ratio is a constant.
OPTION E: The ratio is equal to b.
Step-by-step explanation:
Given:
The ratio of f(x + 1) and f(x) =
Since,
Cancelling out we get:
This shows that the ratio is always a constant and that constant is equal to b.