Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

14.6 to the nearest tenth.

Step-by-step explanation:

Length of DE = √([ 7-4)^2 + (8-3(^2] = √(34)

Length of EF = √([ 9-7)^2 + (5-8)^2] = √(13)

Length of FD = √([ 9-4)^2 + (5-3)^2] = √(27)

So the perimeter = √(34) +√(13) +  √(27)

= 14.63

= 14.6 to the nearest tenth.

can you put the picture up?

step-by-step explanation:

no because mercury has a density of 13.6 grams per centimeter squared while gold has 19.32 grams centimeter squared

step-by-step explanation: