Therefore, \(x + 1 = 5\) → \(x = 4\).
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- Probability second is blue: \(\frac{6}{19}\).
- Combined probability: \(\frac{7}{20} \times \frac{6}{19} = \frac{42}{380} = \frac{21}{190}\).
- #### \(\frac{21}{190}\)
- A ladder 13 feet long leans against a wall, with the base 5 feet from the wall. How high up the wall does the ladder reach?
- Use Pythagorean theorem: \(5^2 + h^2 = 13^2\).
- \(25 + h^2 = 169\) → \(h^2 = 144\) → \(h = 12\) feet.
