Answer:
angle A=30°
Step-by-step explanation:

Answer is (45-25s^2)/(9s^2+6s-45)
D.8
A and C are out because they would get you ether lower or equal to 20, which is equal to AC and your trying to find X in AB which is so posed to be the what equals AC+BC.
AB=AC+BC
5x=20+BC
5(8)=20+BC
40=20+BC
40=20+20
AC equals 20. AB will have to equal AC+ CB. If you put in A.4 in AB 5X you will get twenty and that not what you want. You want to get a number that will get you the an answer greater to AC. So 5(8)=40.
Answer:
689 root 11
Step-by-step explanation:
simplify
16x4root11+5^4 root 11
64 root 11 +625 root 11
What is the problem I can help but there is none.