This is the general formula for circle.
x² + y²=r²<span> ,where r is the radius
</span>
Consider the building as the centre of the circle, then the radius is equal to the furthest distance between <span>you and the tower that allow you to have coverage.
Hence,
r</span>² = 2025
r=√2025 = 45 miles
They estimated it by the last digit in 68,658. Since 8 is over 5, you round it up to 70,000. Another way to put it is that 68,658 is closer to 70,000 than it is to 68,000. Does that make sense?
Subtract 8/10 from 4/10 but just the numerator (the top number) and you will get 4/10
Answer:
Step-by-step explanation:
I think you mean 0.5 in:20 mi
2 in × (20 mi)/(0.5 in) = 80 mi
2 inches on the map corresponds to 80 miles.