a estrutura metálica representada na figura a seguir mostra o processo de construção de um galpão industrial. Tres vigas são representadas pelas retas r, s,e t, em que r e s são comcorrentes e perpendiculares. Além disso, as retas s e t são paralelas. A partir das informações anteriores, pode_se afirmar qud as retas r e t são :

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

If p(x) is the total value of the production when there are x workers in a plant, then the average productivity of the workforce at the plant is a(x) = p(x) x . (a) find a'(x). a'(x) = xp'(x) − p(x) x a'(x) = xp'(x) − p(x) x2 a'(x) = p'(x) − p(x) x a'(x) = xp'(x) − p'(x) x2 a'(x) = p'(x) − xp(x) x2 why does the company want to hire more workers if a'(x) > 0? a'(x) > 0 ⇒ a(x) is ; that is, the average productivity as the size of the workforce increases. (b) if p'(x) is greater than the average productivity, which of the following must be true? p'(x) − xp(x) > 0 p'(x) − xp(x) < 0 xp'(x) − p'(x) > 0 xp'(x) − p(x) < 0 xp'(x) − p(x) > 0

Three lines meet at a point. set up and solve an equation to find the value of (a) is your answer reasonable? explain how you know