3. Which pair of quantities form a proportional relationship?
1 answer:
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Answer:
89.0°
Step-by-step explanation:
The segment from the centre of the circle to the chord is a perpendicular bisector, hence
third side of right triangle = 12.7 ÷ 2 = 6.35
The angle subtended at the centre by arc CD is twice the angle subtended by the right triangle at the centre
The triangle from the centre to C is congruent to the triangle from the centre to D
Calculate the angle (Θ ) in the right triangle using the sine ratio
sinΘ = =
Θ = (
) ≈ 44.5°
Hence
measure of CD = 2 × Θ = 2 × 44.5 = 89.0°
Answer:
The correct option is (1,2), (0, 1), (1, 2), (2, 4).
Step-by-step explanation:
Consider the provided ordered pairs.
The exponential function is in the form of
Where, a is the initial amount and b is the rate of change b>0,
The graph of each exponential function passes through the point (0, a),
and
Therefore, Option 1 and 2 and 4 are false.
Hence, the correct option is (1,2), (0, 1), (1, 2), (2, 4).