Ethan uses the function f(x) = 2x2 + 2x + 4 to track the temperature of a substance over 8 hours. you know that f(3) = 28 meaning that the temperature of the substance is 28°c when you plug in a 3 for x. what is the domain of ethan’s function?

Grading scale 1 has the following weights- (tests- 50% quiz- 25% homework- 15% final exam- 10%). calculate your final average if your performance in the class is as follows-test grades- {88, 84, 90, 75, 70, 81); quiz grades- {88, 67, 90, 90, 45, 99, 76, 98, 100}; homework- 90; final exam- 75

Solve the equation for x. 50(4x + 12) = 200

Factor 15x^3 - 5x^2 +6x-2 by grouping. what is the resulting expression