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Pre Algebra Questions & Answers

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Write the number in expanded form using exponents. 5. \( 74,271= \) 6. Number Sense Explain the difference between \( 4^{6} \) and \( 6^{4} \).
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\( R=\log \left(\frac{A}{A_{0}}\right) \) where \( A \) - the measure of the amplitude of the earthquake wave \( A_{0} \) the amplitude of the smallest detectable wave (or standard wave). An earthquake is measured with a wave amplitude 525 times as great as \( A_{0} \). What is the magnitude of this earthquake using the Richter scale, to the nearest tenth? The earthquake registered
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What el común denominador de las fracciones.
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9. Halla el común denominador de las fracciones. \( \frac{8}{9} \) y \( \frac{3}{99} \)
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QUESTION 3 3.1. Consider the sequence \( 5 ; \frac{7}{4} ; a ; b ; \frac{13}{25} ; c \) The general term for the sequence is \( T_{n}=\frac{2 n+3}{n^{2}} \), determine the values of \( a, b \) and \( c \)
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The ratio of pencils to erasers is \( 4: 1 \). If there are 20 pencils, how many erasers are there?
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o. There are a total of 463,100 books in a library. What is the value of the exponent when is number is written in scientific notation?
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(3)6.2.15 Practice 3 Last month, there were 4 sunny days for every rainy day. If there were 30 days in the month, how many days were rainy? Type your answer in the box.
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Find the sum of terms of the given series \( \frac{1}{24}+\frac{1}{36}+\frac{1}{48}+\frac{1}{60} \ldots \) ?
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Rewrite as sums or differences of logarithms. \( \log _{c}\left(\dot{x}^{\dot{9}} y^{3} z\right) \) \( \log _{c}\left(x^{9} y^{3} z\right)=\square \)

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