SOLUTION: A sailor on a submarine uses a periscope to view the surface of the ocean. The periscopes height H9in feet) above the surface and the distance d(in miles) that the sailor can see

Question 689585: A sailor on a submarine uses a periscope to view the surface of the ocean. The periscopes height H9in feet) above the surface and the distance d(in miles) that the sailor can see are related by the formula h=d^2/1.4. Suppose the periscope is at a height of 3 feet. To the nearest mile, how far can the sailor see? Please show me how to do this. I don't understand it. Thank you.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A sailor on a submarine uses a periscope to view the surface of the ocean.
The periscopes height H (in feet) above the surface and the distance d(in miles) that the sailor can see are related by the formula h=d^2/1.4.
:
Suppose the periscope is at a height of 3 feet.
To the nearest mile, how far can the sailor see?
:
Replace h with 3 and find d, write the equation:
= 3
multiply both sides by 1.4
= 1.4(3)
= 4.2
d =
d = 2.05 miles

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