Ms. Durand has an obsession with Christmas. She is standing 8ft away from a 20ft Christmas Geometree. She wonders, "hmmm, what is the angle of elevation from myself to the star on the top of the tree?"

68.20°

Step-by-step explanation:

Using Pythagoras rule :

Tanθ = opposite / adjacent

Adjacent = 8ft

Opposite = 20

Tanθ = 20 / 8

θ = tan^-1(20/8)

= 68.198590

Hence, angle of elevation = 68.2°

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

answer: 3.26019516

step-by-step explanation: