A 30 kg force when it is acting on a paint at a distance of 40 cm from the point of rotation is having moment of force is
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Gaira was asked to evaluate the algebraic
expression –3.8x + 6 when x = –7.5.
–3.8(–7.5) + 6(–7.5)
28.5 + (–45)
(–16.5)
What mistake did she make? What is the correct answer?
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