Question

How do you solve for x in this problem?

Answer 1

Yo sup??

You can solve this problem by applying the cosine rule ie

a²=b²+c²-2bccosx

x²=11²+8²-2*11*8cos16

=121+64-169.2

=15.8

x=√15.8

=4  (approx)

Hope this helps.

Answer 2

Answer: you will use the cosine rule

Step-by-step explanation:

x^2=11^2+8^2-2(11)(8)xcos(16)

x^2=185-169.18

x^2=15.8

Take square root

x=3.96 or 4