Let f be the function given by f(x) = 2 cos x + 1. what is the approximation for f(1.5) found by using the line tangent to the graph of f at x = π/2 ?

What is the slope of the line that contains the points (-2,1) and (0,-3)

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.