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charle [14.2K]
2 years ago
10

4. An expression is shown.

Mathematics
1 answer:
konstantin123 [22]2 years ago
3 0

Answer:

Step-by-step explanation:

The simplest way to do this is to break in into parts

  • 2 * 4 = 8
  • 10^6 * 10^2 = 10^8 Notice that when you multiply base 10 powers, you add the powers. That's the  key to scientific notation.

When you combine these two you get 8 * 10^8

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The correct answer is:  [C]:  " 5 " .
__________________________________________________________
                                →  " a = 5 " .
__________________________________________________________
Explanation:
__________________________________________________________ 

Given:  " a + 1 <span>− 2 = 4 " ; Solve for "a" ; 

4 + 2 = 6 ; 

6 </span>− 1 = 5 ;   →  a = 5 ;

To check our work:

5 + 1 − 2 = ? 4 ?? ;  

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So the answer is:  [C]:  " 5 ". 
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Step-by-step explanation:


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