After a rotation of 180° about the origin, the coordinates of the vertices of the image of a triangle are A'(6,3), B'(-2, 1), and C (1,7). What is the y-coordinate of the pre-image for vertex
A?
(2 points)

k

step-by-step explanation:

domit

a orange at the grocery store idk what other product that could be

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