The solution is in the attached below
Circumference=31.4yd

Answer:
¾ miles
Step-by-step explanation:
⅓ : ¼ mile
1 : X
X = ¾
Answer:
3x/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
angular frequency
ω = 2π/ T = 2π/4 = π/2 rad/s
A = 7 inch
Starts at rest (maximum swing, |A| = 7) so cosine function is easiest
x = -7cos(πt/2)