Can you answer the question that it’s in blue please
C becouse the premises aren't true
The minimum value was at the vertex y=-2<span />
<span>What you know: speed of the ships = 80 mph
Combined speed = 80+80 = 160 mph
Time = distance/combined speed -> time = 90/160 -> time = 0.56
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Use the Pythagorean Theorem.
4000^2 + 17000^2 = c^2
16000000 + 289000000 = c^2
305000000 = c^2
c = 17464 miles (B)