Margo borrows $600, agreeing to pay it back with 4% annual interest after 18 months. How much interest will she pay?
1 answer:
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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)
