Combine the like terms
-x-x^2+7
Answer:
c^2=33^2+37^2-2(33)(37)cos120(i don't know for sure tho)
Step-by-step explanation:
LAW OF COSINES
Maybe something like 24/4=6. so sorry if I'm incorrect.
Answer:
Cos A = (√51)/ 10
Step-by-step explanation:
sin is opposite/hypothenuse
cos is adjacent/hypothenuse
Pythagorus theorem says that c² = a² + b²
10² = 7² + b²
b² = 100 - 49
b = ±√51
It doesn't make sense for a length to be a minus number therefore, we will use +√51.
Cos A = (√51)/ 10
Tell me if I am wrong.
Can I get brainliest
First make 20 into a fraction, then solve; 3/5 · 20/1. 60/5 = 12. Hope that helps!
