The table shows the mass of a substance decreasing over a period of time during a chemical experiment. Identify a quadratic model for the mass M, given the time t. Then use the model to predict the mass at t = 11 seconds. Time (s) Mass (g) 2 94.8 87.9 8 81.3 O Mx) = -0.02x2 – 2.42x + 99.57 M(11) - 129 g O M(x) = 0.02x2 - 2.42x + 99.57 M(11) = 129 g O Mx) * -0.02x² - 2.42x + 99.57 M(11) = 75 g O M(x) = 0.02x2 - 2.42x + 99.57 M(11) - 75 g

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