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Alexeev081 [22]
3 years ago
13

Answer question below.

Mathematics
2 answers:
san4es73 [151]3 years ago
4 0

Answer:

The third one.

Step-by-step explanation:

The square root of 81 is 9. The closest answer to that is the third one.

Papessa [141]3 years ago
4 0

Answer:

x is between 80 and 90

Step-by-step explanation:

Square both sides

x= 9^2, so 9*9

x=81

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Solve.... 4n- 9= 2 (5+ 2n)
timama [110]

Answer:

Step-by-step explanation:

Here you go mate

Use PEMDAS

Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction

Step 1

4n-9=2(5+2n)  Equation/Question

Step 2

4n-9=2(5+2n)  Remove parenthesis

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Step 3

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Answer

No solutions

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3 0
3 years ago
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Serga [27]
<h2>Greetings!</h2>

Answer:

B and E

Step-by-step explanation:

The rules of indicies states:

x^{a} ÷x^{b} = x^{a-b}

So 3^{-8} ÷  3^{-4} =  3^{-8 - - 4} =  3^{-4}

So that means B is one of the correct answers.

To find the other correct value, you can divide the two fractions as stated in the question:

3^{-8} by 3^{-4} = \frac{1}{81}

81 is equivalent to 3⁴

So that means E is also correct.


<h2>Hope this helps!</h2>
3 0
3 years ago
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