How would you solve this I’m confused

Step-by-step explanation:

Notice that since segments AB and DE are parallel, then angles and must be equal since they are alternate angles in between parallel lines.

So, . We also know that , then the remaining angle () in triangle CDE must be such that added to the other two angles results in . That is:

Now, since angle D equals 10 times x, we can solve for the unknown x in the equation:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

36

step-by-step explanation: