Answer:
Option B \(5.7\ hours\)
Step-by-step explanation:
step 1
Find the area of a circular wooden table
The area of a circle is equal to
\(A=\pi r^{2}\)
we have
\(r=6/2=3\ ft\)
substitute
\(A=(3.14)(3^{2})=28.26\ ft^{2}\)
step 2
we know that
Jesse can sand \(5\) square feet every hour
By proportion
Find how long will it take Jesse to finish sanding the table
\(\frac{5}{1}\frac{ft^{2}}{hour} =\frac{28.26}{x}\frac{ft^{2}}{hour}\\ \\x=28.26/5\\ \\x=5.7\ hours\)
