If a train has 8 box cars that are each 55 feet long, 11 oil cars that are each 48 feet long, and
15 coal cars that are 50 feet long, then how
many feet do the oil and coal cars contribute to
the overall length?
A. 440 feet
B. 528 feet
C. 750 feet
D. 1,278 feet

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.