Evaluate: -x^3 - x^2- x(a - x) if x = -1/2 and a = 2

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

Look at the hyperbola graphed below. the hyperbola gets very close to the red lines on the graph, but it never touches them. which term describes each of the red lines? o o o o a. asymptote b. directrix c. focus d. axis

Aright triangle can also be a(n) triangle.