Use differentials to estimate the amount of paint needed to apply a coat of paint 0.05 cm thick to a hemispherical dome with diameter 42 m. (Round the answer to two decimal places.)
Use differentials to estimate the amount of paint needed to apply a coat of paint 0.05 cm thick to a hemispher?
didn't you just ask this question? did you delete it with the answers? not nice.
You do not need to use differentials, as i said. Calculate the surface are of the half sphere and multiply by the thickness.
Since the paint thickness is very small compared to the area, this is differentials in a sense.
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