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wlad13 [49]
3 years ago
14

How do you know that two expressions are equivalent

Mathematics
1 answer:
stiks02 [169]3 years ago
6 0
You know that two expressions are equivalent when if you substitute in your values and simply the expressions, they have the same answer.
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Help me ASAP for question 9
bulgar [2K]

Answer:

What is the arc length and sector area for the following circle. Round your answer to 4 decimal places.

Step-by-step explanation:

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Melanie's car payment was $511 a month. She also paid $159 a month for insurance. How much does Melanie spend in 12 months on he
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$8040 spent on her car and insurance payments.

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511 + 159 = 670

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hellllpp, with both number 1 and 2, first one to answer gets brainliest, be sure of your answer please!​
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Answer:pretty sure 1 is 23 and 2 is 211200

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4 0
2 years ago
What is the simplified expression for,
Nostrana [21]

Here are a few rules you need to know for this equation:

  • Multiplying exponents of the same base: x^m\times x^n=x^{m+n}
  • Dividing exponents of the same base: \frac{x^m}{x^n}=x^{m-n}
  • Turning a negative exponent to a positive one: x^{-m}=\frac{1}{x^m};\frac{1}{x^{-m}}=x^m

So this is our algebraic expression: \frac{3^{-4}\times 2^3\times 3^2}{2^4\times 3^{-3}}

Firstly, multiply 3^-4 and 3^2: \frac{3^{-4+2}\times 2^3}{2^4\times 3^{-3}}=\frac{3^{-2}\times 2^3}{2^4\times 3^{-3}}

Next, divide:

\frac{3^{-2}\times 2^3}{2^4\times 3^{-3}}=3^{-2-(-3)}2^{3-4}=3^12^{-1}

Next, turn the negative exponent into a positive one: 3^12^{-1}= \frac{3}{2}

<u>Your final answer is 3/2, or 1.5.</u>

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3 years ago
On a map, the distance between two towns is 2.5 inches, and 1 inch represents 6 miles.
MAXImum [283]
So it's 2.5 inches, so it would be 15 miles, because 6+6+3=15.
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3 years ago
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