Answer: 5.32 × 10^12
Step-by-step explanation:
This is a question relating to indices. In indices, we add the power given for question relating to multiplication. Hence, this will be:
= (2.8•10^8)(1.9•10^4)
= (2.8 × 1.9) × 10^8+4
= 5.32 × 10^12
Therefore, the answer to the question will be 5.32 × 10^12.
 
        
             
        
        
        
Nearest 100: 543,800
Nearest 1,000: 544,800
Nearest 10,000: 540,800
        
                    
             
        
        
        
Answer:
 B:25°
Step-by-step explanation:
Now  gets bisected by
 gets bisected by  .
.

Since, the angle is bisected, this means that the angle is split into two equal parts or the angle is halved.
We know that one of the angles is  so the other angle has to be
 so the other angle has to be  also.
 also.
Hence, the  .
.