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Which integer values of b would give the...

Which integer values of b would give the number `2002 div 10^(-b)` a value between 1 and 100?

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To solve the problem of finding integer values of \( b \) such that the expression \( \frac{2002}{10^{-b}} \) lies between 1 and 100, we can follow these steps: ### Step 1: Rewrite the Expression The expression can be rewritten using the property of exponents: \[ \frac{2002}{10^{-b}} = 2002 \times 10^{b} \] This means we need to find \( b \) such that: \[ 1 < 2002 \times 10^{b} < 100 \] ### Step 2: Break Down the Inequality We can break this down into two inequalities: 1. \( 2002 \times 10^{b} > 1 \) 2. \( 2002 \times 10^{b} < 100 \) ### Step 3: Solve the First Inequality For the first inequality \( 2002 \times 10^{b} > 1 \): \[ 10^{b} > \frac{1}{2002} \] Taking the logarithm (base 10) of both sides: \[ b > \log_{10}\left(\frac{1}{2002}\right) \] Calculating \( \log_{10}(2002) \) gives approximately \( 3.301 \), thus: \[ b > -3.301 \] ### Step 4: Solve the Second Inequality For the second inequality \( 2002 \times 10^{b} < 100 \): \[ 10^{b} < \frac{100}{2002} \] Taking the logarithm (base 10) of both sides: \[ b < \log_{10}\left(\frac{100}{2002}\right) \] Calculating \( \log_{10}(100) = 2 \) and \( \log_{10}(2002) \approx 3.301 \): \[ b < 2 - 3.301 \implies b < -1.301 \] ### Step 5: Combine the Results From the inequalities, we have: \[ -3.301 < b < -1.301 \] The integer values of \( b \) that satisfy this inequality are \( b = -3 \) and \( b = -2 \). ### Conclusion Thus, the integer values of \( b \) that give the number \( \frac{2002}{10^{-b}} \) a value between 1 and 100 are: \[ \boxed{-3 \text{ and } -2} \]
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