Find the value of x, rounded to the nearest tenth. correct answers only ..

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

The trigonometric ratios sine and secant are reciprocals of each other

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)