Diana drove 169.5 miles in total.
Step-by-step explanation:
Average speed first = 50 miles
Driving time = 1.5 hours
Distance = Speed*Time
Average speed afterwards = 42 miles
Driving time = 2.25 hours
Distance=Speed*Time
Total distance = 75+94.5
Total distance = 169.5 miles
Diana drove 169.5 miles in total.
Keywords: distance, speed
Learn more about speed at:
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Answer:
∅1=15°,∅2=75°,∅3=105°,∅4=165°,∅5=195°,∅6=255°,∅7=285°,
∅8=345°
Step-by-step explanation:
Data
r = 8 sin(2θ), r = 4 and r=4
iqualiting; 8.sin(2∅)=4; sin(2∅)=1/2, 2∅=asin(1/2), 2∅=30°, ∅=15°
according the graph 2, the cut points are:
I quadrant:
0+15° = 15°
90°-15°=75°
II quadrant:
90°+15°=105°
180°-15°=165°
III quadrant:
180°+15°=195°
270°-15°=255°
IV quadrant:
270°+15°=285°
360°-15°=345°
No intersection whit the pole (0)
