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OpenStudy (anonymous):
The expression 0.01E+0.003E^2the thickness in millimeters (mm) of the insulation needed for a high voltage cable. Eis the number of kilovolts carried by the cable. What thickness of insulation material is needed for 7 kilovolt cable?
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OpenStudy (phi):
I think you replace E with 7 in your expression 0.01*7 + 0.003*(7^2)
OpenStudy (anonymous):
thanks
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