In the xy-plane, the parabola with equation y=x2+2 intersects the line x−y=−4 at two points. What is the sum of the x-coordinates of the two points of intersection? -1

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Find the amplitude of a sinusoidal function that models this temperature variation

Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work: