The lateral surface of a right cylinder, when unrolled, is always a rectangle.

Base and side The bases are always congruent and parallel to each other. If you were to 'unroll' the cylinder you would find the the side is actually a rectangle when flattened out.

Step-by-step explanation:

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f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

-6 is the correct option from the above given options