© A cube with sides 13 inches long is covered with a coat of fiberglass 0.2 inch thick. Use differentials to estimate the volume of the fiberglass shell. The volume of the fiberglass shell is approximately in³. ← For y = f(x)=x²-3x² +5, find dy and Ay, given x = 3 and Ax=0.2. dy= 18 (Type an integer or a decimal.) Ay=(Type an integer or a decimal.)

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