What is mdfc?

45°
80°
125°
135°

Option B is correct .i.e, m∠DFC is 80°

Step-by-step explanation:

We are given measure of ∠ BFC = 45° and measure of ∠AFE = 125°

We have to find measure of ∠DFC

From Figure,

Line BE intersects with line AD at point F.

we know that vertically opposite angles are equal

So, we get

∠BFD = ∠AFE  

∠BFC + ∠CFD = ∠AFE

45° + ∠CFD = 125°

∠CFD = 125° - 45°

∠CFD = 80°

Therefore, Option B is correct .i.e, m∠DFC is 80°

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.