Are
you familiar with that?
------------
amp = 4
and
period=2 pi /4 = pi /2
Answer:
1.b 2. 2.5 or 2 1/2
Step-by-step explanation:
Answer: B.
Step-by-step explanation: Googled it.
Pick 100 km for D...
<span>This would yield T=100 minutes </span>
<span>Using the question stem we calculate 80 km were traveled in 1h (or 60 minutes).... </span>
<span>This leaves us with 40 minutes (2/3 of an hour) to travel 20km..... </span>
<span>R*T=D </span>
<span>R*2/3=20 </span>
<span>R=30 </span>
<span>Answer A....</span>
Answer:
48
Step-by-step explanation:
You can do it with cross multiplication
