The phase transformation in which the liquid plus a solid phase give rise to a new solid phase is known as: (a) pearlite (b) eutectoid (c) congruent (d) peritectic

0.55x745.7j and a calculator

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west