Answer:
"changes the period to pi"
Step-by-step explanation:
f(t) = Sin(t),
Here, t is the period, by definition.
Multiply t by a number that is GREATER THAN 1, makes the period shorter and compressed.
Multiplying t by a number that is between 0 and 1 makes the period expanded.
For the first, if we multiply the period by a, the period becomes 
Since the problem tells us to multiply by 2, we know the period becomes compressed and becomes :

Third answer choice is right.
The answer is 15
From the graph:
Car A traveled 60 miles in one hour
Car B traveled 75 miles in one hour.
Car B travels 15 more miles per hour
I think the problem is work this way because y is equal to 72 and x is 3 you just multiply 72(3)2=432
Answer:
6 feet
Step-by-step explanation:
This problem involves using ratios to compare side lengths in similar triangles.
136/34=x/1.5
136/34*1.5=x/1.5*1.5
136/34*1.5=x
x=6
The man is 6 feet tall