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Answer:
A. Given
B.Measure of ABC=90
C.Angle addition Prostulate
D.2 times the measure of angle CBD=90
Step-by-step explanation:
Answer:
9x^2+3x-90
81x+3x-90
84x-90 final answer
Step-by-step explanation:
The rate is 5 seconds of travel time for the sound of thunder per every mile.
The possible distance between the parallel chords whose lengths are 6 cm and 16 cm is 15.5 cm
<h3>How to determine the length between the two chords?</h3>
The diameter of the circle is given as:
D = 20cm
Calculate the radius (r)
r = 10 cm
For the chord of length 6 cm;
The distance of chord from the center of the circle is:

Evaluate
d = 9.5
For the chord of length 16 cm;
The distance of chord from the center of the circle is:

Evaluate
D = 6
The sum of both distances is the possible distance between both chords.
Distance = 9.5 + 6
Distance = 15.5
Hence, the possible distances between the chord is 15.5 cm
Read more about chords and circles at:
brainly.com/question/13950364
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