Answer:
   −3x^8 + 9x^2 + 10x
Step-by-step explanation:
A polynomial is in standard form when the exponents of the variable decrease left to right. The only given expression in that form is ...
   −3x^8 + 9x^2 + 10x
 
        
             
        
        
        
Answer:
h(t)=-16t^2+375t
Step-by-step explanation:
 
        
             
        
        
        
Answer:
40287600 = B. 4 x 
Step-by-step explanation:
<u>We first have to do the multiplication of the numbers given:</u>
19 * 2,120,400 
=> 40287600
<u>Now we have to figure out how many digits are after the number 4:</u>
4, 0 2 8 7 6 0 0
7 digits
Meaning that we need an exponent of 7 for it to be in scientific notation, giving us with the answer B. 4  x 
 
        
             
        
        
        
Answer:
Step-by-step explanation: