Which of these processes are chemical reactions?
a. boiling an egg
b. crushing spices
c. vegetables rotting
d. chopping vegetables
e. dew forming

hope it

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