Please help me with my project I’ve been stuck on it for ages and it’s due today

Given sin=-4/5 and x is in quadrant 3, what is the value of tan x/2

Select the statement that is not true about the hubble telescope: a. it orbits above the earth, avoiding the light distortion caused by our atmosphere. b. it is mounted high on a hawaiian mountaintop to provide stable images. c. it has allowed scientists to see the formation of far-away stars and solar systems, leadin some certainty about the history of our own solar system. d. it has documented the destruction of far-away stars and galaxies, leading to some certa the theories of the life cycles of stars.

Working to improve the working conduit a factory is an example of