Jen M.

asked • 5d

Could somebody please help me with this math problem. It is so hard for me.

A inflatable raft is dropped from a hovering helicopter to a boat in distress below. The height of the raft above the water in meters is y=750-10x², where x is in seconds.

a) What is the height of the helicopter above the water.

b) When does the raft reach the water?

c) What is the height of the raft above the water at 5 seconds after it is dropped?

d) When is the raft 350 m above the water?

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