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ki77a [65]
3 years ago
6

Each side of a square is increasing at a rate of 6cm/s. At what rate is the area of the square increasing when the area of the s

quare is 16cm^(2). Show step-by-step solution
Mathematics
1 answer:
diamong [38]3 years ago
7 0
Area of a square = length²
A = x²
16 = x²; x = 4
dA/dx = 2x cm²/s
dx/dt = 6 cm/s
Using chain rule:
dA/dt = dA/dx * dx/dt
dA/dt = 2x * 6
dA/dt = 12x
At x = 4,
dA/dt = 12(4) = 48 cm²/s
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