Answer:
the answer is 7 units
Step-by-step explanation:
90% of 100 = 0.9 x 100 = 90
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Answer: The visitor can see 90 ships.
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Answer:

Step-by-step explanation:

Hope this helps!
Answer:
we can draw the graph of cosine with amplitude 2.
Step-by-step explanation:
In the given function g(x) = 2cosx we know the following parameters which are helpful to draw the graph.
Its a cosine graph given in the form of y = acos(Bx + c) + d
Here a is amplitude, period = , c = phase shift, d = vertical shift
We know a = 2, B = , c = 0, d = 0.