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Find the derivative of f(x)=xf(x) = x at x=9x = 9.\newlineWrite your answer as an integer or a fractions" target="_blank" class="backlink">fraction. Simplify any fractions.\newline____\newline

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Q. Find the derivative of f(x)=xf(x) = x at x=9x = 9.\newlineWrite your answer as an integer or a fraction. Simplify any fractions.\newline____\newline
  1. Calculate Total Tape: First, let's figure out how much tape is needed in total and how much is on each roll.\newlineTotal tape needed = 8,000 cm8,000 \, \text{cm}, Tape per roll = 2,000 cm2,000 \, \text{cm}.\newlineWe need to divide the total tape needed by the amount of tape per roll to find out how many rolls are needed.\newlineCalculation: 8,000 cm÷2,000 cm=48,000 \, \text{cm} \div 2,000 \, \text{cm} = 4 rolls.

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