Answer:
D
Step-by-step explanation:
2ab*cos(C)=a^2+b^2-c^2
2ab*cos(C)=5^2+4^2-2^2=25+12=37
reflection of Δa about y=2 results in Δb
0.74
72/97 is 0.74 rounded to the nearest hundredths.
= 6.5
You have to plug in 1.5 for x
->
4(1.5) + 0.5 = 6.5
