Add
24+18=42
36^2+x^2=42^2
1024+x^2=1764
-1024 -1024
x^2=740
x=27.2
It’s slightly closing in so it would be 85 as in the answer b)
Answer/Step-by-step explanation:
Reference angle = θ
Opposite side = 11.9
Adjacent side = 10
Applying the trigonometric ratio, TOA, we have:
Tan θ = opp/adj
Tan θ = 11.9/10
θ = tan^{-1}(11.9/10)
θ = 49.9584509° ≈ 50.0° (to one d.p)
Apply pythagorean theorem to find AB:
Thus:
AB = √(11.9² + 10²)
AB = √241.61
AB ≈ 15.5 (to 1 d.p)
Imagine this as a circle. The circle will have a radius of 17mi and the lighthouse will be in the middle. The area of the circle will be the area over which the beacon can be seen.

is the equation for the area of the circle where A is the area.
Now we simply plug in our information
A=

A=907.9
The answer to this problem is
all real numbers except for 4. When looking at this function, one can see that most numbers are possible. But, the only number that won't be possible is four. That's because the fraction

will always equal something greater than or less than zero. Since it's never going to equal zero, and since there is already a 4, that means that the range of this function is
all real numbers except for 4.