Answer:
-6
Step-by-step explanation:
we use X to try and find the number to which 7was multiplied
so it's 7x+12=-3
if you cross multiply you will get
<u>7x+12=-3</u>
10
7x+12=-30
-30-(-12)=-42
7x=-42
X=-6
n = 4
Where's a or did you mean n?
4/5
that is it
Cosine is .
Apply the equation:
B is the adjacent side so
cosine is:
Cos(t) = 5/2
Have a great day,
And I hope this helps you!
See the files.
Step-by-step explanation