Move 3 to the other side to isolate x.
-10 = 2x
Divide both sides by 2 to isolate x.
-5 = x
For this case we have that by definition, the distance between two points is given by:

We have the following points:

Substituting:

ANswer:
20
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
Answer:
The answer is 2876.25
Step-by-step explanation:
The question said x is ten
so 7x means 7*10
93x means 93×10
divided by 3.2x which means 3.2x which is 3.2×10
when u write it in an equation format it will look like this 70+930÷32
Ur answer should look like this 2976.25
Can you take a picture of the problem