Answer:d
Step-by-step explanation:
Answer:
21.75
Step-by-step explanation:
Jill 2 hours to run 14.5 miles
14.5/2=7.25
7.25 miles per hour
14.5+7.25=21.75
M∠BDC=half the arc it faces=1/2 of 54=27
BD is the diameter, so m∠C=90
m∠DBC=180-90-27=63
cos(37°15') = cos(37.25°) ≈ 0.7960
15' means 15/60 of a degree, or 0.25 degrees.
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Note: the calculator mode is set to <em>Degrees</em>.