Which are uses of lasers? Check all that apply. scanning barcodes transmitting telephone and Internet signals examining internal body parts cutting through metals, ceramics, plastics, and cloth correcting vision problems

the answer would be a

0.19 m/s and 0.45 m/s

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y