Here's how I answer these kind of questions.
Answer:
Step-by-step explanation:
amplitude of oscillation a = 12 / 2 = 6 inches.
time period T = 2 s
b = angular frequency = 2π / T
= 2π / 2
= π
so putting the values in the equation
d = a cos ( b t )
d = 6 cos ( π t )
Answer:
f -1 (x) = x/3 - 8/3
Step-by-step explanation:
9 ft > 4ft
10 Gal > 6 Qt
18 ton = 36,000 lb
( the last one I don't remember how to convert that. )
