Darnelle drew this figure and the accompanying equations.
w + x + y = 180 y + z = 180which equation must also be true?
a
w + z = 180
b
y – x = w
c
w + x + z = 180
d
w + x = z

Option D. w + x = z

Step-by-step explanation:

see the attached figure to better understand the problem

we have

----> equation A

----> equation B

equate equation A and equation B

Subtract y both sides

This equation satisfy the Triangle Exterior Angle Theorem (An exterior angle of a triangle is equal to the sum of the opposite interior angles)

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.