Samir wants to work out the cost of the tiles needed to replace a roof. The roof has 4 identical faces. Each face is a triangle . Each triangle has a base length of 7.6m and s height of 4.8m. 1 pack of tile covers 13.8m2 and each pack cost £716,10. Calculate the total cost of the tiles for the 4 faces of the roof

Does the function satisfy the hypotheses of the mean value theorem on the given interval? f(x) = 4x^2 + 3x + 4, [−1, 1] no, f is continuous on [−1, 1] but not differentiable on (−1, 1). no, f is not continuous on [−1, 1]. yes, f is continuous on [−1, 1] and differentiable on (−1, 1) since polynomials are continuous and differentiable on . there is not enough information to verify if this function satisfies the mean value theorem. yes, it does not matter if f is continuous or differentiable; every function satisfies the mean value theorem.