Answer:
18.0864
is the exact answer hope this helps :3
Answer:
( Hint)
To find the curve of best fit, you will need to do exponential regression. Press STAT, then right arrow to highlight CALC, and then press 0:ExpReg . The correlation coefficient is r, which is 0.994 in this case. That means that the equation is a 99.4% match to the data.
These are insanely easy if you use google!!!
Area of a square= length^2
479=length^2
√479= length
so length= 21.89ft rounded to 22ft