vector u has a magnitude of 4 and a direction angle of 30 degrees. write the component form of this vector.

u=< 2,3.5>

u=< 2.1,29.9>

u=< 3.5,2>

u=< 29.9,2.1>

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0

Which of the following is true for the relation f(x)=2x^2+1