You can use Heron Formula in the calculator to output the result, but i still show you the steps on paper thro
lengths of the 3 lines: \sqrt{392} , \sqrt{676} , \sqrt{676}
s= (\sqrt{392} + \sqrt{676} + \sqrt{676})/2=35.89949494
area= \sqrt{s(s- \sqrt{392} )(s- \sqrt{676})^2 } =238
She lived there 8 years
1/9 of 18 is 2.
So 4/9 of 18 = 4*2 = 8
So Sara lived in Rochester for 8 years.
Answer: x=-7/4+1/4√89 or x=-7/4+-1/4√89
Answer:
I believe the answer is 9
We need 2880 person-hours and we have 12 people.
When we divide the work between them: 2880/12 = 240 hours required to complete.
