My question is when multiplying scientific notations, after taking say, (8.2 * 4.5) and (10^9 * 10^-5) are you multiplying the 8.2 * 4.5, or adding?

Step-by-step explanation:

I am not sure if this is what you are asking

8.2*4.5 * = 36.9 * = 3.69 *10*=3.69*

y/x=18

step-by-step explanation:

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2