What are the x-intercepts of this quadratic function? g(x) = -2(x - 4)(x + 1)

A. (4,0) and (-1,0)
B. (-4,0) and (1,0)
C. (-4,0) and (-1,0)
D. (4,0) and (1,0)

Construct the graph that models the given situation

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?