The angle at which light hits a surface (angle of incidence) and the angle at which it is reflected away (angle of reflection) are . always greater than 90 degrees.

always the same

always negative

always opposite

answer: a. same unit

explanation:

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

i would say