Main Campus, Kat learns a wood-chopping safety check that involves a making circle with her arm extended, to ensure she will not hit anything overhead as she
chops.
If her reach is 19 inches, the hatchet handle is 15 inches, and her shoulder is
located at the origin, what is the equation of Kat’s safety circle?

they are simplified

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x