period (T): the time it takes to travel one wave
= 2π - (-10π)
= 12π
Answer:
16.1%
Step-by-step explanation:
hope it help you
t=v/d
id think that there are two steps
v=d/t
divide D on both sides
v/d=d/t/d
v/d=t
1. 12 mph, 24 miles
2. m=4, y=22
3.15/1, $1500
4. x=30 y=60, k cheaper, j cheaper
