Answer:
z =86
Step-by-step explanation:
The exterior angle of a triangle is the sum of the opposite interior angles
z + z-39 = z+47
2z-39 = z+47
Subtract z from each side
z-39 = 47
Add 39 from each side
z = 47+39
z =86
I believe it is the second one
<u>What do we know so far</u>:
*we converted the number of laps into improper fractions

<u>We want to know the number of laps in an hour</u>
⇒ so we must find the rate which ⇒ lap/hour

<u>So William can run</u> ⇒ <u>10 laps in one hour</u>
Hope that helps!
Answer:
C. F
Step-by-step explanation:
Since all the lines seem atleast to be at the halfway point of each edge of the triangle the incenter would be f the intersection point of those lines.