Part F Multiply the numerator of the complex traction in part by the reciprocal that you found in part E. Show your work from left to right for the entire
problem. Express the result as a mixed number

a

step-by-step explanation:

the answer is d

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the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5