What is the perimeter of triangle DEF?

A 10.4 units
B 2.4 units
C 4.2 units
D. 12.2 units
HELP PlZ

(4.2 units)

Step-by-step explanation:

By inspection of the illustration we can see that leg DE has length 3 and that leg DF also has length 3.  By the Pythagorean Theorem, 3^2 + 3^2 = 2(3^2); thus, the length of the hypotenuse EF is 3√2, or approximately 4.24 units.  The third answer choice (4.2 units) is the correct one.

x^6

step-by-step explanation:

this is correct because:

x-6=0

0*x=0

so

x^6

8

step-by-step explanation: