Solve this quadratic equation by completing the square. x2 + 10x = 13

Which is the completely factored from of xy^3-x^3y

Bring the fraction a/a-4 to a denominator of 16-a^2

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.