Your equation would be T=.002n.
(x-9)(x+7)=0
x-9=0 or x+7=0
x=9 or x=-7
:)
Answer:
180+54sqrt3
You have to use the formula that is contained within the lessons, the answer you should have before you format it like this is: 273.530743609
C. m k L hope it helps! not 100% sure