The bear moves closer, so Rick decides to go to the other side of the lake. Since there is a forest, he can only spotpoint A when angle C measures 50'. What trigonometric function would Rick use to find AB if he knows the measure of BC ?

Tangent

Step-by-step explanation:

Given

See attachment for complete question

Required

Function to calculate BC

If AB is known, BC is calculated as:

Substitute d for AB and 50 for C

Make BC the subject

Hence, BC can be found using tangent

yes

step-by-step explanation:

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)