Step by step by its the thirds pne
Answer:
C. 20 seconds
Step-by-step explanation:
We want to know when y=0
The first y is when it started and the second y=0 is when it stops
Looking at the graph y=0 at x=0 and y=0 at x=20
The fan started at time 0 and stopped at 20 seconds
Look up online "equation calculator" and it should be the first one to appear, "Symbolab" supper easy way to help you with problems!
Use sine = opposite / hypotenuse
Answer:
x = 4.47
Step-by-step explanation:
Formula for hypotenuse: