B^2=(a^2)+(c^2)-2acCosB
b^2=4+9-(2*3*2)(Cos38)
The answer is 9, you are welcome
0.000045 = <span>00.00045 /10
=</span><span> 000.0045 / 100
</span>= 0000.045 / 1 000
= 00000.45 / 10 000
<span>= 000004.5 / 100 000 = 4.5 * 10^(-5)
That is in</span><span> scientific notation
I hope that helps
</span>
The answer would be x=5 or x=9
