Question

1)

A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.7 + 0.008x, measured in______________________________________________________________________________________

______________________________________________________________________________________

2)

Graph the curve. r = 6 + sin(48)

______________________________________________________________________________________

______________________________________________________________________________________

3)

A trough is filled with a liquid of density 815 kg/m3. The ends of the trough are equilateral triangles with sides 14 m long

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