Length and Time

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Mass and Weight

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question 1 of 2 Grade: Ten - G10

Q: If a ruler measures 2.5 meters, what is its length in centimeters?

Equal roots when discriminant = 0. Discriminant = \(k^2 - 4(1)(9) = k^2 - 36 = 0\), so \(k^2 = 36\), \(k = \pm 6\).

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Equal roots when discriminant = 0. Discriminant = \(k^2 - 4(1)(9) = k^2 - 36 = 0\), so \(k^2 = 36\), \(k = \pm 6\).

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