3lines are shown. a line with points a, f, d intersects a line with points b, f, e at point f. a line extends from point f to point c in between angle d f b. angle a f e is 125 degrees and angle b f c is 45 degrees. what is mangledfc? 45° 80° 125° 135°

∠ DFC = 80°

Step-by-step explanation:

See the attached figure.

Since BFE is a straight line so, ∠ BFA + ∠ AFE = 180°

Now, ∠ AFE is given to be 125°.

So, ∠ BFA = 180° - 125° = 55°

Now, AFD is a straight line. So, ∠ BFA + ∠ BFC + ∠ DFC = 180°

⇒ 55° + 45° + ∠ DFC = 180° {Since, ∠ BFC is given to be 45°}

⇒ ∠ DFC = 180° - 55° - 45° = 80° (Answer)

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.

2,160 π

step-by-step explanation: