<span>y = x + 2
y = 3x - 2
so
x + 2 = 3x - 2
2x = 4
x = 2
y = 2+2+ 4
answer
(2,4) is the solution </span>
Answer:
-1
Step-by-step explanation:
You have to use the Law of Cosines twice here. Let's find angle A first:
. Doing a bit of simplifying you get
. Simplifying a bit more gives you -544=-696cosA. cosA = .78160919 and that A = 38.6. Actually, now that I think about it we can now move to the Law of Sines to find another angle because the triangle is not a right triangle. Just trust me. Let's find angle B now.
and that
. sinB = .3565026267 and that angle B is 20.9. Knowing those 2 angles we can find C: 180-38.6-20.9=120.5 and there you have it.
A...............................................................
Explanation: the difference between the numbers is the same