For each triangle, find the values of the variables

Because the opposite sides are congruent, so are the angles.

4x+20=40

subract 20 from both sides

4x=20

divide by 4 on both sides

x=5

i think the answer is .36

step-by-step explanation:

what i did was only 2.88 divided by 8

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!