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kirill115 [55]
1 year ago
11

Simplify and express the result in power notation with positive exponent

Mathematics
2 answers:
Molodets [167]1 year ago
4 0

Answer:

3²

Step-by-step explanation:

Given expression:

\sf (3^{-3} \div 3^{-10}) \times 3^{-5}

Following the <u>order of operations</u>, carry out the calculations inside the parentheses first.

\textsf{Apply the quotient exponent rule} \quad a^b \div a^c=a^{b-c}:

\implies \sf 3^{-3-(-10)} \times 3^{-5}

\implies \sf 3^{-3+10} \times 3^{-5}

\implies \sf 3^{7} \times 3^{-5}

\textsf{Apply the product exponent rule} \quad a^b \times a^c=a^{b+c}:

\sf \implies 3^{7+(-5)}

\sf \implies 3^{7-5}

\sf \implies 3^2

Learn more about exponent rules here:

brainly.com/question/27959936

brainly.com/question/24947526

Leona [35]1 year ago
3 0

\\ \rm\Rrightarrow \dfrac{3^{-3}\times 3^{-5}}{3^{-10}}

  • a^ma^n=a^m+n
  • a^m/a^n=a^m-n

\\ \rm\Rrightarrow 3^{-3+10}\times 3^{-5}

\\ \rm\Rrightarrow 3^73^{-5}

\\ \rm\Rrightarrow 3^{7-5}

\\ \rm\Rrightarrow 3^2

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Step-by-step explanation:

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Answer: undefined in both cases.


Explanation:

1) Expression to evaluate:

\frac{3}{2x^2} - \frac{2}{x^2-3x}

2) You are asked to evaluate that expression for two different cases, x = 0 and x = 3.

3) First case: x = 0

The expression cannot be evaluated at x = 0, because the denominators (both  denominators) equal 0, and the division by 0 is not defined.

So, the answer is undefined.

4) Second case, x = 3

When you replace x = 3 you get:

\frac{3}{2x^2} - \frac{2}{x^2-3x} = \frac{3}{2(3^2)} - \frac{2}{3^2-3(3)} = \frac{3}{18} - \frac{2}{9-9}

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2 years ago
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Kryger [21]

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Step-by-step explanation:

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34kurt

Answer:

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Step-by-step Explanation:

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