Can some help asap
100x^3-40x^2-125x+50
^= the power

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

What is the radius of the cone in the diagram? round your answer to the nearest whole number

What is the perimeter of a rectangle if the length is 5 and the width is x?