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Rudik [331]
3 years ago
7

Which exponential expression represents the numerical expression 9⋅9⋅9? ​​

Mathematics
1 answer:
Orlov [11]3 years ago
6 0
The correct answer is:   [D]:  " 9³ " .
________________________________________________________

Note:  " 9³ " ; or "nine to the third power"; or "9-cubed" ; is correct, because we are multiplied the number "9" by itself, "three times";
     hence, the value equal to:    
              9*9*9" is equal to:  " 9³ " ;  
      that is, "nine to the THIRD power" ; or:
                  "nine to the power of "three" ;
______________________________________________________
                   which is:  Answer choice:  [D]:  " 9³ " .
_______________________________________________________
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Answer:

The explicit formula that can be used is A=\$400(1.05)^{2}

The account's balance at the beginning of year 3 is A=\$441  

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

A=P(1+\frac{r}{n})^{nt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

t=2\ years\\ P=\$400\\ r=0.05\\n=1  

substitute in the formula above  

A=\$400(1+\frac{0.05}{1})^{1*2}  

A=\$400(1.05)^{2}

A=\$441  

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3 years ago
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Answer:

d

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2 years ago
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Answer:

B= 15 cm²

Step-by-step explanation:

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