Aye the Answer is D ~hope that helps :)
        
             
        
        
        
(9x 10^-3)^2= , so d 8.1x10^-6
, so d 8.1x10^-6
Evaluate 1/2a^-4b^2 for a =-2 and b=4

A number raised to a negative exponent is sometimes negative.
Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great Valentines Day! :-)  
- Cutiepatutie ☺❀❤
 
        
             
        
        
        
Answer:
B and D people. Your welcome.
Step-by-step explanation:
 
        
             
        
        
        
It’s B because it equals -8 when simplified which is a rational number
        
             
        
        
        
Answer:
D B A C
Step-by-step explanation: