Answer:
Step-by-step explanation:
A negative number times a negative number is a positive.
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three more than twice a number.
By substitution
f(6) = 1.8×2^(6)
= 1.8×64
= 115.2
Firstly , we need to draw diagram
we are given
opposite =300
adjacent =750
now, we can use tan formula

now, we can find x

we get

so,
angle of depression is 21.8 degree.....Answer