The formula for x in terms of w is x = 3w² and the formula for y in terms of x is y = (1/112)x³
<h3>Variation</h3>
x = k × w²
w = 4, x = 48
48 = k × 4²
48 = k × 16
48 = 16k
k = 48/16
k = 3
So,
x = k × w²
x = 3 × w²
x = 3w²
y = k/x³
x = 2, y = 14
14 = k / 2³
14 × 2³ = k
14 × 8 = k
112 = k
So,
y = k/x³
y = 112/x³
y = (1/112)x³
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If length = x then width = x - 7
area = x(x -7) = 120
x^2 - 7x - 120 = 0
(x +8(x-15) = 0
x = -8 and 15
length must be positive so length = 15 ins
width = 15-7 = 8 ins
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yo whats your fav anime series
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