Substitute \(x = 3\):
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- \[ 250 + 30 = 280 \]
- In a right triangle, the lengths of the legs are 9 units and 12 units. Calculate the length of the hypotenuse.
- If the function \(f(x) = 2x^2 - 3x + 1\), determine \(f(3)\).
- \[ f(3) = 2(3)^2 - 3(3) + 1 = 2 \times 9 - 9 + 1 = 18 - 9 + 1 = 10 \]
- Use the formula \(A = P(1 + r)^n\):
- \[ A = 1000(1 + 0.05)^3 = 1000(1.157625) = 1157.63 \]
