Answer:

Step-by-step explanation:

Sinse you want the POSITIVE solution, your answer is 5.
I am joyous to assist you at any time.
H=80 ft
Distance from horizon
=sqrt(h/0.57) miles
=sqrt(80/0.57) miles
=11.85 miles.
Answer: B: 20
Step-by-step explanation: We can take 40% as a fraction to make it 4/10, simplifying gives 2/5. 2/5 of 50 is 20!
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