Answer:
hey
Step-by-step explanation:
formula used here
<h2>cos inverse (-theta)= π- cos inverse theta</h2>
see the attachment above
option c
7x - 5 = 30
* add 5 to both sides
7x = 30 + 5
7x = 35
* divided both sides by 7
(7/7)x = 35/7
<u><em>x = 5</em></u>
Answer:
the answer ia true
Step-by-step explanation:
hope this helps