Hello, I wanted to know if someone could correct this exercise if…

Question Answered step-by-step Hello, I wanted to know if someone could correct this exercise if… Hello, I wanted to know if someone could correct this exercise if possible, I tried to answer as many questions as possible, and some answers are good:Image transcription text1 ) 8 ( 0 ) = 28 ( 1 – 20 ) = 0. True. 2 ) Because 1_ gott< 0 on To:+ col. 3 ) 8 ( t ) = 28 x 0 , 14 8 0 1 4 5 - 3 , 92 0- By 148 is it a decreasing function? 3, 92 70 and 2-0,1xt > out,… Show moreConcrete is a building material.In this exercise, we are interested in the concretes used for the construction of a slab and we study the compressive strength expressed in MPa (megapascal) as a function of the drying time t expressed in days.A mathematical model used to model this resistance is the function f defined and differentiable on [0; +∞[ such that:f(t) = 28(1-e^(-0.14t) )When the concrete has just been prepared at time t = 0, its compressive strength is zero.              1) Check consistency with the mathematical model.2) Explained why this resistance can never exceed 28 MPa.Calculate the derivative function of f then deduce the direction of variation of fYou can walk if you use this type of concrete as soon as its compressive strength is greater than 14 MPA.After how many days of drying is it possible to walk on this type of concrete?  Math Calculus MTH 161 Share QuestionEmailCopy link Comments (0)