(-2/3, 2)
Solve for the first variable in one of the equations, then substitute the result into the other equation.
The area of the sector which is the white triangle adding the shaded region is 68.9/360*π*9.28^2=51.78005(rounding to 5th digit after decimal point for accuracy before we do final round for answer)
The area of the white triangle in the sector has area 1/2*9.28^2*sin(68.9)= 40.17223(rounding to 5 digits again for some accuracy.
Now we take out the white triangle from the sector.
51.78005-40.17223=11.60782
rounding to the nearest tenth we get 11.6 cm^2
Problem done!
Hope this helped and if you have any questions about my explanation just ask in the comment and I will answer.
The answer is 90,000 because 10 to the power of 4 is 10,000 times 9 is 90,000
1:05:5/11 I think.
During 12 hours, 11 times of overlapping. so each duration of overlapping is 12/11=1 and 1/11 hour. So the first time of overlapping after noon is 13:05:5/11
