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The height hin feet of an object above the ground is given by function h(x)=−4x^2−2x+8. What is maximum value of h.? What kind of interactions among amino acids account for secondary and tertiary structure of a protein? I want hurricane dorian back? How much heat in joules is needed to raise the temperature of 1.5 L of water from 0°C to 90.0°C? How can I use u substitution for this problem: integral of (2x^3-7)^2 I tried u=2x^3-7 but then du=6x^2 and I don t see how that s helpful?