At noon, ship a is 90 km west of ship
b. ship a is sailing south at 20 km/h and ship b is sailing north at 10 km/h. how fast is the distance between the ships changing at 4: 00 pm?

.632

step-by-step explanation:

6 * 1/10 = 3/5

3*0.01 = 0.03

3/5 + 0.03 = .63

2*0.002 = .002

.63 + 0.002 = .632

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it