Answer:
64/7 years
9.143 years
Step-by-step explanation:



Input the values


V = (4,-3,5)
w = (2,6,-1)
z = (3,0,4)
u = 0.5 v - w + 2 z = 0.5 (4,-3,5) - (2,6,-1) + 2 (3,0,4)
= ( [0.5 * 4 - 2 + 2 *3] , [0.5*-3-6+2*0] , [0.5*5--1+2*4] )
= ( 6 , -7.5 , 11.5 )
The correct answer is option D
Answer:
There is not enough information
to find EF because you need to
know either the length of DF or
one of the other angle measures.
Step-by-step explanation: